Die Schwalbe

70 problem(s) found in 3656 milliseconds (displaying 70 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Unterverwandlung']

1 - P0003789
Zvonimir Hernitz
Problem 41-44 03/1957
1. ehrende Erwähnung e.a.
15. Thematurnier
P0003789
(3+13) C+
h#3
1. ... exd7 2. Tfe7 d8=T 3. Te6 Tf8#
1. Sc7? e7 Se6 e8=S# (but Wh to move)
play all play one stop play next play all
Autor Zvonko Hernitz, Zagreb
A.Buchanan: So what's the tourney theme exactly? Is it just the wonderful Art.15, the "official joke". There is a unique h#2 retro try: is that a requirement of this tourney? (2020-05-10)
Henrik Juel: You can find the award here, Andrew
http://problem64.beda.cz/silo/problem_41-44_1957.pdf
on p.79
My Serbo-Croatian is a bit rusty, so I will leave the translation to you (2020-05-10)
A.Buchanan: I cannot see the logic behind sBc4d3g5. The solution, the h#2 retro try, and the retro logic are all unaffected by their removal. There are numerous h#3 tries anyway.
I have found the results of this tourney on pages 79-81 of the document above. At 70 pages, it is too long for google translate, but apparently one can do character recognition in google drive for free, and then those pages might be translatable. There is also an interesting article by Fabel at the beginning about conventions, which might be worth resuscitating. I will leave these for someone else.
This document has been photocopied multiple times, and some of the diagrams are very difficult to read. It makes me never want to compose with a black piece on a black square ever again! However the retro condition makes it easier to reconstruct the diagrams. (2020-09-30)
more ...
comment
Keywords: Promotion (T), No legal last move for White, under-promotion
Genre: h#, Retro
Computer test: Henrik Juel: C+ by Popeye 4.61 (2020-05-10)
FEN: 8/3p1rp1/3PPk2/2pnrbpK/2p1q2b/3p4/8/8
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2020-10-01 more...
2 - P0577226
Jonathan Levitt
B) The Problemist (2), p. 32, 03/1995
P0577226
(6+4) cooked
ser-h#30
1. Kb2 2. Kc3 3. Kd4 4. Kxe5 5. Kf6 6. e5 7. e4 8. e3 9. e2 10. e1=L 11. Lxh4 12. Lg5 13. Lxh6 14. Kg7 15. Kh8 16. Lg7 17. h5 18. h4 19. h3 20. h2 21. h1=L 22. Lxd5 23. Lg8 24. d5 25. d4 26. d3 27. d2 28. d1=T 29. Th1 30. Th7 Sg6#
play all play one stop play next play all
Erich Bartel: im Problemist ist hierzu vermerkt:
Jonathan's Artikel has already apeared, in translation,in the
March 1995 issue of Rochade-Europa, and these originals
should compete in the informal tourney of that magazine.
--------
Die Frage ist nun welches Magazin als Erstqueelle gelten soll. (2011-11-28)
Anton Baumann: NL: 1.d6 2.dxe5 .. 6.e1=D .. 8.Dg8 .. 13.e1=L 14.Lxh4 15.Lg5 16.Lxh6 .. 23.Kh8 24.Lg7 .. 29.h1=T 30.Th7 Sg6# (2020-11-21)
more ...
comment
Keywords: Series mover, corner to corner (sKa1h8), Excelsior (3-fach), under-promotion, konsekutive Umwandlungen 3 (llt)
Genre: Fairies
FEN: 8/3pp2p/7P/1K1PP3/5N1P/8/8/k7
Reprints: Rochade Europa 03/1995
Input: Felber, Volker, 2000-01-06
Last update: Olaf Jenkner, 2020-11-23 more...
3 - P0582787
Wilfried Neef
8248 feenschach 10-12/2000
P0582787
(8+13)
h#7
0.1...
1. ... Lg2 2. Kxd5 Kf1 3. Kc4 Kg1 4. d5 Lf1 5. d6 Lxe3 6. c1=L Ld2 7. c2 e3#
play all play one stop play next play all
erschienen 04/2001
Anton Baumann: 1. .. Lg2 2.Kxd5 Kf1 3.Kc4 Kg1 4.d5 Lf1 5.d6 Lxe3 6.c1=L Ld2 7.c2 e3#
C+ Gustav 4.1d (2020-11-24)
comment
Keywords: under-promotion (l), Batteriematt diagonal, discovered checkmate, Unpinning, Entblockung, Klasinc theme (L-K), Line opening, Model mate
Genre: h#
FEN: 8/3p4/3p4/3P4/2kP1p1p/1pp1pP1P/brp1P3/brB1KB2
Input: hpr, 2001-05-26
Last update: Gunter Jordan, 2020-11-25 more...
4 - P1080625
Roberto Osorio
Jorge Joaquin Lois

R133 Problem Paradise 01-03/2006
P1080625
(13+15) C+
BP in 19,5
1. d4 Sc6 2. Dd3 Tb8 3. Da6 bxa6 4. Sf3 Tb5 5. Sh4 Th5 6. Sf5 d5 7. Sh6 gxh6 8. g4 Lg7 9. g5 Le5 10. g6 Sf6 11. g7 Sd7 12. g8=S Sdb8 13. Sf6 exf6 14. dxe5 Se7 15. e6 Sg8 16. e7 Kd7 17. e8=D+ Kd6 18. Da4 Ld7 19. c3 Le8 20. Dd1
play all play one stop play next play all
paul: This PG (with bBe8) was ranked first (judge K. Prentos) (2020-12-01)
more ...
comment
Keywords: Unique Proof Game, Interchange (ss), Pronkin Theme (D), Ceriani-Frolkin Theme (S), Excelsior (w), Promotion (SD), under-promotion
Genre: Retro
Computer test: C+ Natch 3.1 No solution for 19.0 moves
FEN: 1n1qb1nr/p1p2p1p/p2k1p1p/3p3r/8/2P5/PP2PP1P/RNBQKB1R
Input: Gerd Wilts, 2009-01-17
Last update: A.Buchanan, 2020-12-01 more...
5 - P1085218
Horacio Amil Meylan
i010 Mirador 02/2004
P1085218
(9+6)
ser-h#32
1. e6 2. exf5 3. f4 4. f3 5. f2 6. f1=D 7. Dxh3 8. Dxh5 9. Df5 10. h5 11. h4 12. h3 13. h2 14. h1=L 15. Lxc6 16. Le4 17. c6 18. cxb5 19. b4 20. b3 21. b2 22. b1=T 23. Tb6 24. Txd6 25. Te6 26. d5 27. d4 28. d3 29. dxc2 30. c1=S 31. Se2 32. Sf4 d4#
play all play one stop play next play all
Anton Baumann: C+ Alybadix (2020-11-27)
comment
Keywords: Series mover, Allumwandlung, Excelsior (4-fach), Kindergarten Problem, Pawn mate, Ideal mate, Entblockung, Selfblock, Promotion, under-promotion, konsekutive Umwandlungen 4 (dlts)
Genre: Fairies
FEN: 8/2ppp2p/2PP1p2/1PK1kP1P/8/7P/2PP4/8
Reprints: zu 18098 Die Schwalbe 204, p. 656, 08/2020
Input: hpr, 2009-05-30
Last update: Gunter Jordan, 2020-08-14 more...
6 - P1093621
Anatoli N. Kejv
2773 Schach-Aktiv 04/2003
P1093621
(8+4) C+
s#6
1. b8=L! Kh3+ 2. Df3+ Kh4 3. Dg2 Kh5 4. g8=S Kh4 5. f8=L Kh5 6. Le7 Lxg2#
1. ... Kg1+ 2. Df3 Lg2 3. g8=T Kh1 4. f8=L Kg1 5. Lfd6 Kh1 6. Lh2 Lxf3#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-11-03)
comment
Keywords: konsekutive Umwandlungen 3 (LSL,LTL), Umwandlungswechsel, under-promotion in the key (T)
Genre: s#
FEN: K7/PP3PPp/1p5P/1P6/5Q2/8/6k1/7b
Input: Frank Müller, 2009-11-08
Last update: Marcin Banaszek, 2020-11-07 more...
7 - P1117160
Dieter Müller
Mirko Degenkolbe

3919 Kudesnik 113, p. 14, 06/2008
Lob
P1117160
(5+2) C+
#6
2 Lösungen
1) 1. g4! Kc4 2. g5 Kd4 3. g6 Kc4 4. g7 Kd4 5. g8=T Kc4 6. Tg4#
2) 1. Ka4! Kc4 2. Ka5 Kd4 3. Kb6 Kc4 4. Sf6 Kb4 5. Ta5 Kc4 6. Ta4#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion (T)
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/3N4/8/4R3/3k4/K1p5/2P3P1/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2020-11-11 more...
8 - P1130231
Franjo Fuis
Hrvatski pokret 1942
P1130231
(6+1)
#2
1. a8=L Kxa4 2. Lc6#
play all play one stop play next play all
BUL20 E7bL
more ...
comment
Keywords: Miniature Collection (0310145), under-promotion, Rex solus (s)
Genre: 2#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-24)
FEN: 8/P7/8/1k6/R1NP4/2P5/2K5/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Erich Bartel, 2020-10-25 more...
9 - P1138276
Carl Behting
103 Baltische Schachblätter (3) 1891
P1138276
(5+1)
#3
1. Ta5 Kf6 2. e8=L! Ke6 3. Th6#
1. ... Kxd6 2. e8=T Kc6 3. Te6#
1. ... Kd7 2. e8=D+ Kxe8 3. Ta8#
2. ... Kxd6 3. Dd7#
play all play one stop play next play all
Die 'Volksgemeinschaft' geografisch etwas desorientiert: "(Japanische Kostprobe) ... wurde uns aus unserem Leserkreis eingesandt; leider ist uns jedoch der Name des japanischen Komponisten nicht bekannt."
SCHRECKE: 1. ... Kd7 2.e8D+ K:d6 3.Dd7,Dg6# (Mattdual) (2020-12-02)
more ...
comment
Keywords: Miniature Collection (0048818), under-promotion (T,L)
Genre: 3#
FEN: 8/4P2R/R2Pk3/8/8/8/8/3K4
Reprints: 53 Austrums 01/09/1894
39 Volksgemeinschaft (Heidelberg) 05/01/1936
Input: Felber, Volker, 2010-09-11
Last update: Mario Richter, 2020-12-02 more...
10 - P1151303
F. Morel
Curieux 1943
P1151303
(5+2) C+
#2
1. Sh8! (Zugzwang)
1. ... Kxh8,Sf6,Sg5 2. f8=D#
1. ... Sf8 2. e8=S#
play all play one stop play next play all
FE-S2D2 BUS10 mm
more ...
comment
Keywords: Miniature Collection (0310164), Promotion in the mating move, under-promotion in mating move
Genre: 2#
Computer test: popeye 4.85
FEN: 8/4PPkn/6N1/4K3/8/7R/8/8
Reprints: 6637 Schweizerische Schachzeitung 02/1944
Input: Zuncke/Bruder, 2010-09-12
Last update: Alfred Pfeiffer, 2020-10-15 more...
11 - P1160597
Bruno Oswald Sommer
59 Brandenburgische Schachzeitung 05/1925
P1160597
(4+3)
#3
1. Ld3 g1=S 2. Le4 Sxh3,Sg1~ 3. Lf3# 2. ... Sg6,Sf7 3. Lxg6#,Lg6#
1. ... g1=D 2. Le2+ Dg4 3. Lxg4#
play all play one stop play next play all
F4LS TEL B7-3a5 m
vf: Schwalbe 03.1931, Heft 39, S. 88, LB zu 1423
SCHRECKE: 1. ... g1D 2.Le2+ Dg4 3.L:g4,h:g4# (Mattdual) (2020-11-10)
comment
Keywords: Miniature Collection (0332278), under-promotion (S)
Genre: 3#
FEN: 7n/7B/5K2/6Bk/8/7P/6p1/8
Reprints: 91 Dom Rodzinny (Torun) 20/12/1931
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2020-11-10 more...
12 - P1165873
Karl Fabel
Lüneburger Landeszeitung 1924
P1165873
(3+3)
#3
1. g8=T Kh7 2. Tf8 Kh6 3. Th8#
play all play one stop play next play all
BUT32
Henrik Juel: C+ Popeye 4.61 (2020-11-30)
comment
Keywords: Miniature Collection (0330949), Fabel-Opus (17), under-promotion in the key (T), Stalemate avoidance
Genre: 3#
FEN: 4N3/6P1/6pk/6p1/6K1/8/8/8
Reprints: 222 Braunschweiger Neueste Nachrichten 24/05/1927
Input: Zuncke/Bruder, 2010-09-12
Last update: Mario Richter, 2020-11-30 more...
13 - P1183988
Alexandr A. Derewtschuk
Volodymyr Chornous

1883 Chorno-bili stezhyny 06/2009
P1183988
(10+10) C+
s#8
1. Lf8 a5 2. Tg8 a4 3. Kg7 a3 4. Sd4 f5 5. Lg6 f4 6. e8=L f3 7. Lef7 f2 8. Sxb3+ Txb3#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion (L)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 4B3/4PKBP/p4p1P/5N2/8/1p6/prp3RR/bbkn2Q1
Input: Frank Müller, 2011-01-02
Last update: James Malcom, 2020-09-22 more...
14 - P1197534
Jorma Pitkänen
48 The Macedonian Problemist 05-08/2000
P1197534
(5+7) C+
s#5
1. c8=L d5 2. b8=S d4 3. Sc6 d3 4. Se5 d2 5. Sg6+ Lxg6#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2, under-promotion (LS), under-promotion in the key
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 3B4/1PP5/3p4/6rp/7k/8/p6P/rb5K
Input: Frank Müller, 2011-06-13
Last update: James Malcom, 2020-09-22 more...
15 - P1220441
Harry Viggo Tuxen
1 Die Schwalbe 87, p. 250, 03/1935
24. Thematurnier
1. Preis
P1220441
(10+8)
#2
1. cxd7! droht 2. Sf8#
1. ... Dxd7+ 2. Lxd7#
1. ... Dc6 2. exd6#
1. ... Dxa6 2. d8=S#
1. ... Db6 2. dxc8=D#,dxc8=L#
1. ... Txg4 2. Dxg4#
1. ... Tf6 2. Sg5#
1. ... Sb6 2. Txd6#
1. ... Sc6 2. dxc8=D#,dxc8=L#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2020-12-03)
comment
Keywords: under-promotion (S)
Genre: 2#
FEN: 2n1K3/3p2pN/R1Pbk1r1/nq1RP3/B5P1/2N5/4Q3/8
Reprints: 64 Volksgemeinschaft (Heidelberg) 21/06/1936
Input: Felber, Volker, 2011-11-08
Last update: Mario Richter, 2020-12-02 more...
16 - P1227639
Ottó Titusz Bláthy
(24) The Chess Amateur 09/1922
P1227639
(2+16)
#16
1. Kxe1 Da1 2. h3! Da2 3. h4 Da1 4. h5 Da2 5. h6 Da1 6. h7 Da2 7. h8=S Da1 8. Sf7 Da2 9. Sd6 Da1 10. Sb7 Da2 11. Sxc5 Da1 12. Sb7 Da2 13. Sa5 Da1 14. Sxc4 Da2 15. Sa5 Da1 16. Sxb3#
play all play one stop play next play all
Der Springerweg im Zug 8-11 und 12-14 ist natürlich dualistisch.
Uppström veröffentlicht hierzu 1999 eine Verbesserung als #13 (P1228972)
In ND 10) steht der wK auf e1 und gefordert sind #15 mit
Schlüsselzug 1.h4!
Frank Müller: vgl. 1228 FIDE-Album 1914-44/II (2011-12-22)
Erich Bartel: weitere Nachdrucke:
1) MAT III-IV 1981
2) Schach und Mathematik 1983,S.107
3) Mat Plus (11) Autumn 1996
4) Rund um das Schachbrett 1955,S.59
5) 133 Bajke na sahovskoj ploci, 1992
6) Springaren (78) IX 1999,S.128
7) Die Schwalbe (10) IV 1960
8) 114 Probleme für Tiger (10) X 1984
9) 11 Minimalprobleme 1962
10) The Ural Problemist (37) 2004
11) 312 Schachmatna Mosaika 1984 (2013-02-10)
James Malcom: This seems computer testable, excluding the minor duals that there are. (2020-11-18)
Olaf Jenkner: Yes, Gustav gives 65 duals in less than one second. (2020-11-18)
James Malcom: But seeing as how that is part of the intention, clearly, and this is still a widely accepted and reprinted problem, is it C+ with the duals in mind as allowed? (2020-11-19)
more ...
comment
Keywords: Minimal, Excelsior, under-promotion
Genre: n#
FEN: 8/8/8/2p5/1pp5/brpp4/qpprpK1P/1nkbn3
Reprints: (1) FIDE Revue 04-06/1964
42 Kurioses Schach 1975
Input: Mario Richter, 2011-12-22
Last update: Olaf Jenkner, 2020-11-18 more...
17 - P1238302
Reinhardt Fiebig
11969 Springaren 06/2010
2. ehrende Erwähnung
P1238302
(2+10)
h#5
1. Lg5 Db2 2. c1=T+ Db1 3. Tc6 Dxb3 4. Tg6 Dxg8 5. Dh8+ Dxh8#
play all play one stop play next play all
Dan Meinking: Compare P1006951 (2012-05-08)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-12)
comment
Keywords: Minimal (D), under-promotion (t), Pure Round Trip (D-5), Model mate
Genre: h#
FEN: 6bQ/7q/1p5k/5p2/8/pp6/p1p5/K1b5
Input: Felber, Volker, 2012-05-08
Last update: Gunter Jordan, 2020-10-12 more...
18 - P1271997
Milos Tomasevic
3477 feenschach 58 12/1981
3. ehrende Erwähnung
PR: Thomas Brand
P1271997
(7+5)
ser-r#25
1. a8=L 2. Lxd5 3. Lf3 4. d5 5. d6 6. dxc7 7. c8=L 8. Lh3 9. h7 10. h8=L 11. Ld4 12. Lxb6 13. Le3 14. b6 15. b7 16. b8=D 17. Db5 18. De2 19. b5 20. b6 21. b7 22. b8=D 23. Db4 24. Lf1 25. Dbe1 fxg3#
play all play one stop play next play all
Anton Baumann: C+ Alybadix (2020-11-30)
comment
Keywords: Series mover, Promotion (konsekutiv LLLDD), Kindergarten Problem, under-promotion, Promotion in the key
Genre: Fairies
FEN: 8/P1p5/1p5P/1P1p4/1P1P1p2/6P1/5K1k/8
Reprints: feenschach 68, p. 270, 12/1983
Umwandlungsrekorde (2) 05/1985
Input: Erich Bartel, 2013-06-07
Last update: Alfred Pfeiffer, 2018-02-20 more...
19 - P1273184
Wilhelm Hagemann
Horizont 1947
P1273184
(5+3)
#3
1. b7xa8=S! d5-d4 2. Sa8-b6 d4-d3 3. a7-a8=D,L#
play all play one stop play next play all
t/entfernte Springerumwandlung
t/alle Umwandlungen auf demselben Feld;
Henrik Juel: C+ Popeye 4.61 (except for promotion mate dual) (2020-10-24)
comment
Keywords: Promotion (konsekutiv SD/L), Promotion in the key, under-promotion, Promotion in the mating move, Tolerated dual promotion
Genre: 3#
FEN: bB6/PP6/8/3p4/8/8/5K1P/7k
Input: Erich Bartel, 2013-06-26
Last update: A.Buchanan, 2020-10-24 more...
20 - P1274610
Venelin G. Alaikov
Buletin Problemistic 07-12/2002
Turnier der Rumänischen Schachförderation 2002
1. Preis
P1274610
(10+12) C+
s#6
1. Le6! droht 2. Df4+ Kxf4 3. Sd3+ Ke4 4. Sd6+ Kd4 5. Sf5+ Ke4 6. Sxg3+ Sxg3#
1. ... b1=L 2. Td4+ Kxd4 3. Sc6+ Ke4 4. Ld5+ Kf5 5. Lc4+ Ke4 6. Ld3+ Lxd3#
1. ... b1=S 2. Ld5+ Kd4,Kf5 3. Lc4+ Ke4 4. Sc5+ Kd4 5. Sa4+ Ke4 6. Sxc3+ Sxc3#
1. ... c2 2. Dxc2+ Kf4 3. Sd3+ Ke4 4. Sd6+ Kd4 5. Sf5+ Ke4 6. Sxg3+ Sxg3#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion B/S
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/1NQR4/6p1/1R4P1/1N2k1B1/2p1p1pP/pp1pKpP1/r2r3n
Input: Frank Müller, 2013-07-20
Last update: Marcin Banaszek, 2020-11-18 more...
21 - P1302074
Ivan Soroka
3615 idee & form (126) 04/2015
P1302074
(5+2) C+
s#8
1. g8=T! Kh2 2. b4 Kh1 3. b5 Kh2 4. b6 Kh1 7. b7 Kh2 6. b8=L Kh1 7. Dc6+ Lg2 8. Df3 Lxf3#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (TL), Excelsior, white (L), under-promotion in the key (T)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: K7/B5P1/7Q/8/8/7b/1P6/7k
Input: Frank Müller, 2015-04-26
Last update: Alfred Pfeiffer, 2020-10-15 more...
22 - P1334030
Mirko Degenkolbe
1370 Troll 11 17/05/2017
P1334030
(3+4)
#10
1. Dd4? Zugzwang
1. ... Kh2!

1. Dxh3? f1=D,T!

1. Se2! Kh2 2. De5 Kh1 3. De3 g1=S 4. Dxf2 Sxe2 5. Dxe2 Kg1 6. Kd4 h2 7. Ke3 h1=S 8. Kf3 Sf2 9. Dxf2 Kh1 10. Dg2#

1. ... Kh1? 2. Dxh3#
1. ... Kf1? 2. De5! g1=D 3. Sf4 Dg5 4. Dxg5 Ke1 5. Dg3 Kd1 6. Dxf2 Kc1 und Matt im neunten Zuge
2. ... g1=S 3. Sf4 Sf3 4. De3! Kg1 5. Sd3 Kh1 6. Sxf2 Kg1 und Matt im neunten Zuge
play all play one stop play next play all
[MD 1282]
Henrik Juel: Popeye 4.61 w. opt dro 5 found no flaws in the full-length variation (2017-05-13)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-18)
comment
Keywords: under-promotion (s,s), Model mate
Genre: n#
FEN: 7Q/8/8/2K5/8/6Np/5pp1/6k1
Input: Rainer Staudte, 2017-05-13
Last update: Felber, Volker, 2020-10-18 more...
23 - P1358618
Jorma Pitkänen
11696 feenschach 227 11-12/2017
Version
P1358618
(9+5) C+
s#9
1. d8=S! g5 2. b5 g4 3. b7 Ka7 4. b8=T g3 5. Se6 fxe6 6. f7 e5 7. d5 e4 8. f8=D e3 9. Df2 exf2,gxf2#
play all play one stop play next play all
Version zu P1343954
Gunter Jordan: Lt. Hans Gruber erschien diese Aufgabe in feenschach 227 (2017), tatsächlich erschienen im März 2018. Somit ist feenschach die Erstquelle (sofern die Aufgabe nicht noch irgendwo drittveröffentlicht wurde). Ich habe hier die Erstquelle auf feenschach geändert. Die ursprüngliche 'Erstquelle' The Problemist habe ich als Reprint eingegeben. [GJ] (2020-10-30)
comment
Keywords: Kindergarten Problem, under-promotion (S,T), Promotion (D), under-promotion in the key (S), Multiple publication, Pawn mate, Antiphönix, Pinning, Flight taking
Genre: s#
Computer test: Gustav 4.0c
FEN: k7/2PP1p2/1P3Pp1/8/1P1P4/3p4/3Pp1P1/4K3
Reprints: S2678c The Problemist 26-9, p. 363, 05/2018
Input: Felber, Volker, 2018-12-11
Last update: Gunter Jordan, 2020-10-30 more...
24 - P1372653
Ottó Titusz Bláthy
37 Vielzügige Schachaufgaben , p. 41, 1890
P1372653
(9+9)
#108
1. Kd2 Ka7 2. Kc1 Kb8 3. Kb1 Ka7 4. Ka1 Kb8 5. Ka2 Ka7 6. Ka3 Kb8 7. Kb4 Ka7 8. Ka5 f6 9. Kb4 Kb8 10. Ka3 Ka7 11. Ka2 Kb8 12. Ka1 Ka7 13. Kb1 Kb8 14. Ka2 Ka7 15. Ka3 Kb8 16. Kb4 Ka7 17. Ka5 f5 18. Kb4 Kb8 19. Ka3 Ka7 20. Ka2 Kb8 21. Ka1 Ka7 22. Kb1 Kb8 23. Ka2 Ka7 24. Ka3 Kb8 25. Kb4 Ka7 26. Ka5 g6 27. Kb4 Kb8 28. Ka3 Ka7 29. Ka2 Kb8 30. Ka1 Ka7 31. Kb1 Kb8 32. Ka2 Ka7 33. Ka3 Kb8 34. Kb4 Ka7 35. Ka5 g5 36. Kb4 Kb8 37. Ka3 Ka7 38. Ka2 Kb8 39. Ka1 Ka7 40. Kb1 Kb8 41. Ka2 Ka7 42. Ka3 Kb8 43. Kb4 Ka7 44. Ka5 h6 45. Kb4 Kb8 46. Ka3 Ka7 47. Ka2 Kb8 48. Ka1 Ka7 49. Kb1 Kb8 50. Ka2 Ka7 51. Ka3 Kb8 52. Kb4 Ka7 53. Ka5 h5 54. Kb4 Kb8 55. Ka3 Ka7 56. Ka2 Kb8 57. Ka1 Ka7 58. Kb1 Kb8 59. Ka2 Ka7 60. Ka3 Kb8 61. Kb4 Ka7 62. Ka5 f4 63. Kb4 Kb8 64. Ka3 Ka7 65. Ka2 Kb8 66. Ka1 Ka7 67. Kb1 Kb8 68. Ka2 Ka7 69. Ka3 Kb8 70. Kb4 Ka7 71. Ka5 h4 72. Kb4 Kb8 73. Ka3 Ka7 74. Ka2 Kb8 75. Ka1 Ka7 76. Kb1 Kb8 77. Ka2 Ka7 78. Ka3 Kb8 79. Kb4 Ka7 80. Ka5 f3 81. Kb4 Kb8 82. Ka3 Ka7 83. Ka2 Kb8 84. Ka1 Ka7 85. Kb1 Kb8 86. Ka2 Ka7 87. Ka3 Kb8 88. Kb4 Ka7 89. Ka5 h3 90. Kb4 Kb8 91. Ka3 Ka7 92. Ka2 Kb8 93. Ka1 Ka7 94. Kb1 Kb8 95. Ka2 Ka7 96. Ka3 Kb8 97. Kb4 Ka7 98. Ka5 b4 99. Kxb4 a3 100. bxa3 Kxa6 101. b8=T Ka7 102. Tb6 Ka8 103. Ka5 Ka7 104. Tb1 Ka8 105. Kb6 Kb8 106. Td1 Kc8 107. Td6 Kb8 108. Td8#

100. ... Kb8 101. Kxc4 Kc7 102. Kd4 Kb8 103. Ke5 Kc7 104. a4 Kb8 105. Kd6 Ka7 106. Kc7 Kxa6 107. b8=D Ka5 108. Da7#,Da8#

Der Versuch 1. Kd4? Kc7 2. Ke5 findet in 2. ... b4! seine Widerlegung.
play all play one stop play next play all
Superseded by P1382048
James Malcom: I believe that this is the record for the longest Kindergarden problem! The second longest that I know of is P1299269. (2020-02-14)
James Malcom: Actually, as it turns out, this is superseded by P1382048, with a total of four whole moves. (2020-11-18)
more ...
comment
Keywords: Sea Snake, Kindergarten Problem, Move Length Record, Promotion (T,D), under-promotion
Genre: n#
FEN: 1k6/1P3ppp/P1p5/1pP5/p1p3p1/2P1K1P1/1P3P1P/8
Input: James Malcom, 2020-02-14
Last update: James Malcom, 2020-11-18 more...
25 - P1374643
James Malcom
PDB Website 14/4/2020
“Egg Five”
P1374643
(5+2)
s#1
(-:
1. hxg8=sB! g7#
play all play one stop play next play all
Henrik Juel: Here the extra joke is that the (dummy) pawn can move (2020-04-14)
James Malcom: The newly born black pawn is not a dummy pawn, in my opinion. Unlike the dummy, it still has the right to move foward in principal. Since it is new and has never moved, it sill has the right to make a double-step if allowed, as in Horde Chess (https://lichess.org/variant/horde). (2020-04-14)
Henrik Juel: I see your point, James (2020-04-15)
James Malcom: Seems that Gerd might have missed including pawns promoting to opposite color pawns the new update. I'll email him tomorrow morning. With accordance to the rules, they have 4 first moves as a 7th rank pawn does. (2020-05-03)
Gerd Wilts: Promotions to pawns are now also supported. (2020-05-03)
James Malcom: Many thanks Gerd! (2020-05-03)
A.Buchanan: I had missed these 6 miniatures: they are terrific! Can I ask to replace Sg8 in this one with L so that it's not giving check in the starting position. I guess it's kind of crass though economical to replace with pawn! (2020-10-13)
A.Buchanan: Dummy pawns can in principle move imho: it's just that they're usually blocked by the edge of the board. If one was teleported somewhere else on the board by some mechanism, then they would just start moving. So completely different kind of animal from a dummy, which genuinely cannot move :D (2020-10-13)
comment
Keywords: Joke, Joke promotion, under-promotion (b)
Genre: s#
FEN: 6nk/7P/6PK/6PP/8/8/8/8
Input: James Malcom, 2020-04-14
Last update: James Malcom, 2020-06-02 more...
26 - P1380112
Leonid Makaronez
1554 Rochade Europa 01/1996
P1380112
(10+12)
#3
1. Lc2-a4! droht 2. f7-f8=D+, 2. f7-f8=L+
1. ... Lf2-h4 2. Dh2-b2 droht 3. Se5-c4#
2. ... c5-c4 3. Db2-d4#
2. ... Dg7xe5 3. Db2xe5#
2. ... Dg7xf7 3. Se5xf7#
1. ... c5-c4 2. d3-d4 droht 3. Se5xc4#
2. ... Dg7xe5 3. f7-f8=D#, 3. f7-f8=L#, 3. Dh2xe5#
1. ... Th5xf5 2. Dh2-h6+ Tf5-f6 3. Se5-c4#
2. ... Dg7-f6 3. f7-f8=D#, 3. f7-f8=L#
2. ... Dg7xh6 3. Se5-c4#
2. ... Dg7-g6 3. Dh6-f8#, 3. Se5-c4#
play all play one stop play next play all
Henrik Juel: Damaged by mate duals (2020-09-23)
comment
Keywords: Promotion in the mating move (D,L), under-promotion (L)
Genre: 3#
FEN: 4R3/3p1Pqp/nP1k4/2p1NP1r/1p2P3/3Pp3/p1B2b1Q/K5n1
Input: Marcin Banaszek, 2020-09-20
Last update: Alfred Pfeiffer, 2020-09-22 more...
27 - P1380128
James Malcom
(34) MatPlus.net Forum 18/9/2019
P1380128
(12+7) C+
#5
1. Sbc3!+ Kc2 2. cxd8=S b5 3. cxb6ep Txe6+ 4. Sxe6 Kd3 5. 0-0-0#
play all play one stop play next play all
http://matplus.net/start.php?px=1600656376&app=forum&act=posts&tid=2343&fid=xshows&page=1

http://www.berlinthema.de/Auswahl_PH.pdf-"Wenn man eine Unterverwandlung haben will, ist die Springerumwandlung in der Regel am einfachsten zu erzeugen, wegen der unterschiedlichen Gangart des Springers. Die (H48b) mag als Erstdarstellung ihre Berechtigung haben, doch daß Schwarz statt b7-b5 auch b7-b6 spielen kann, entwertet m.E. den e.p.-Schlag weitgehend. Zudem wirkt angesichts des ungedeckten Satzschachs das erste Zugpaar künstlich aufgesetzt."
James Malcom: This is the first Valladao-Belen with an underpromotion. However, it is damaged by the common "short" ep and a dualistic move order. (2020-09-21)
comment
Keywords: Belen Theme, Valladao Task, Checking key, under-promotion (S), En passant, Castling as mating move
Genre: n#
FEN: 3b4/1pPPr1p1/4P1P1/p1P5/N1p5/P7/P4P2/RNk1K3
Reprints: H48b Der Reiz des Ungewöhnlichen
Input: James Malcom, 2020-09-21
Last update: Alfred Pfeiffer, 2020-09-22 more...
28 - P1380143
Peter Hoffmann
H48c Der Reiz des Ungewöhnlichen 9/2019
P1380143
(14+9) C+
#5
1. Sxc3+! Kc2 2. b8=T! f5 3. gxf6ep Lb5 4. Txb5 Kd3 5. 0-0-0#
play all play one stop play next play all
See the improved P1380148

http://www.berlinthema.de/Auswahl_PH.pdf-"In der einschlägigen Diskussion im „MatPlus Forum“ schälte sich heraus, daß Darstellungen mit Turm- oder Läuferumwandlung noch nicht existier(t)en, und dies rief P.H. auf den Plan, der ja ausdrücklich unerforschtes Terrain sucht.
In seinem Stück ist die Unterverwandlung in einen Turm im zweiten Zug logisch begründet – was auch hier das erste Zugpaar aufgesetzt wirken läßt. Mir scheint, daß das Belén-Motiv eher eine hinderliche Vorgabe ist ... 51
(Die Zweckreinheit der schwarzen Reihenfolge-Auswahl, welche die Damenumwandlung
widerlegt, soll hier nicht näher untersucht wurden. Unseres Erachtens ist sie zweckrein, falls man bereit ist, den Austausch der Möglichkeit 5. L:e4# durch die Möglichkeit 5. 0-0-0# als bloße Kompensation zu sehen.)"

http://matplus.net/start.php?px=1570441154&app=forum&act=posts&fid=gen&tid=2361&pid=17978#n17978

Post #1-"A wonderfull surprise! PH presented today a brand new Valladao-Belen, its already published in Erik Zierke's online book in PDF on Hoffmann's works:

http://www.berlinthema.de/AUSWAHL_PH.pdf

page 181, with full solution and comments. In page 180 are also presented, and commented, the known examples of Valladao-Belen (Just two so far, one of them evolved online recently here in MP):

http://matplus.net/start.php?px=1569833313&app=forum&act=posts&fid=xshows&tid=2343&pid=17926#n17926

After a promotion to Queen, and a promotion to Knight, now we have a promotion to Rook.

****** Peter, thanks for Your interest in the Valladão-Belén!! :"

Post 7-"In his excellent # 5, Peter Hoffmann introduces important novelties in the VB field: The promotion move act in three different levels of significance (control of b3, of b5 avoiding to affect d3, and - not least- create a threat of mate in two in e4, allowing a consistent en passant part in real play) : 2.b8 = R is the most impressive single movement in the whole VB's history!

He refers to the Belén as a "motif". In the old Rebnora forum discussions Frank Richter alluded to an "ornamental effect". For Erik Zierke, the Belén condition arrive to become an obstacle ('Hindernis') for the more satisfactory expression in the Valladão field (in the same book we find others of Peter Hoffmann's creations in this field)."
James Malcom: The first Valladao-Belen with a rook promotion. (2020-09-22)
more ...
comment
Keywords: Belen Theme, Valladao Task, Capture key, Checking key, under-promotion (T), En passant, Castling as mating move
Genre: n#
FEN: B3b3/1P3pPQ/4p3/3pP1P1/3Pn3/BPp2p2/pP3P2/RNk1K3
Reprints: (1) MatPlus.net Forum 30/9/2019
Input: James Malcom, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-22 more...
29 - P1380144
James Malcom
Zalmen Kornin

chessproblem.net 10/8/2019
P1380144
(12+9) C+
#5
1. Sc3+! Kc2 2. h8=L! e5 3. fxe6ep cxd4 4. Lxd4 Kd3 5. 0-0-0#
play all play one stop play next play all
https://www.chessproblem.net/viewtopic.php?f=7&t=1078&p=2344&hilit=belen#p2344

"Yes, a Valladao-Belen with a Bishop promotion, and the first to ever appear before the public !"

http://www.berlinthema.de/Auswahl_PH.pdf-"P.H.s (H48c) löste eine verstärkte Suche nach einer Darstellung mit der nun einzig noch feh- lenden Läuferumwandlung aus, und formell ist die (H48e) die Erstdarstellung. Allerdings sehen wir hier dieselbe gravierende thematische Schwäche wie in der (H48b), daß der Doppelschritt vor dem e.p.-Schlag nicht exklusiv ist und Schwarz ebenso den Einzelschritt spielen könnte – wodurch es zum gleichen Spiel kommt nur ohne den thematisch unabdingba- ren e.p.-Schlag."

http://matplus.net/start.php?px=1600576227&app=forum&act=posts&fid=xshown&tid=2367-"****...and the solution now is complete. Yes, You knew already, I'm sure: "habemus episcopus" - after Q, N and R, a promotion to Bishop in a published Valladao-Belen!"
James Malcom: The first Valladao-Belen with a bishop promotion. (2020-09-22)
comment
Keywords: Belen Theme, Valladao Task, Checking key, under-promotion (L), En passant, Castling as mating move
Genre: n#
FEN: 8/4p2P/3p4/pPpp1P2/B1pP1P2/Br3p2/1P3P2/RNk1K3
Reprints: H48e Der Reiz des Ungewöhnlichen
(1) MatPlus.net Forum Moremovers 10/8/2019
Input: James Malcom, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-22 more...
30 - P1380148
James Malcom
Peter Hoffmann

H48d Der Reiz des Ungewöhnlichen 9/2020
JM nach PH
P1380148
(15+7) C+
#5
1. Sxc3+! Kc2 2. b8=T! d5 3. cxd6ep Dxb5,Dc6 4. Txb5,Lxc6 Kd3 5. 0-0-0#
3. exd6ep? Dxe6+!
3. Lxd5? Dd8!
play all play one stop play next play all
See P1380143

http://www.berlinthema.de/Auswahl_PH.pdf-"James Malcom weist darauf hin, daß ohne die schwarze Logik in der Widerlegung der Damenumwandlung man eine eindeutige Zugreihenfolge in der Lösungsphase erhalten kann. Danke für das Interesse an unserer Schrift!"
James Malcom: Some months back, I managed to improve Hoffmann's P1380143. But has only been published recently alongside it, and ironically in the same month. The point here is that there is but a single solution. It turned out to be scarcely possible, requiring every White man but the queen. (2020-09-22)
comment
Keywords: Belen Theme, Valladao Task, Capture key, Checking key, under-promotion (T), En passant, Castling as mating move
Genre: n#
FEN: B1N1q3/1P1p4/4P1p1/1RP1P1P1/8/BPp2p2/pP3P2/RNk1K3
Input: James Malcom, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-22 more...
31 - P1380164
Elmar Abdullayev
52 64 - Shakhmatnoe obozrenie 06/2020
P1380164
(4+3) C+
#6
1. Ka5 a2 2. Sa3+ Ka1 3. Sb5 Kb1 4. Sc3+ Ka1 5. Lc2 b1=D 6. Sxb1#
1. ... Kc1 2. Kb4 b1=S 3. Le3+ Sd2 4. Sxa3 Kb2 5. Lxd2 Ka1 6. Lc3#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion (s), Miniature, Corner mate, Model mate (Gnaden-), discovered checkmate, Batteriematt diagonal, Battery creation
Genre: n#
Computer test: Popeye 4.61
FEN: 8/8/K7/8/2NB4/pB6/1p6/1k6
Input: Rainer Staudte, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-23 more...
32 - P1380252
Fritz Porten
12 Wiener Morgenzeitung 28/07/1924
P1380252
(8+10) C+
#2
1. Le5! droht 2. Sg7#
1. ... Sdxe5 2. Sf4#
1. ... Scxe5 2. cxd8=S#
1. ... Kxe5 2. De2#
1. ... fxe5 2. Th6#
play all play one stop play next play all
in der 'WMZ' nicht explizit als Urdruck deklariert, beim Abdruck wurde der sLg8 vergessen, Korrektur 04.08.1924
more ...
comment
Keywords: under-promotion (S)
Genre: 2#
Computer test: popeye 4.85
FEN: 2Kb1Rb1/p1P1p3/2n1kp2/2pr1N1R/8/3n4/Q5N1/B7
Input: Mario Richter, 2020-09-25
Last update: Alfred Pfeiffer, 2020-09-25 more...
33 - P1380320
James Malcom
www.chess.com 9/7/2020
P1380320
(9+9)
#5
1. Kd3! droht 2. Ke4 ... 3. Kf3 ... 4. Lxg2#,Lxg4#
1. ... Sh5 2. Txh5 b5 3. e8=T! b4 4. Te6 Sxe5+,S~ 5. Txe5#,Tx~#
1. ... Se6,Sf5 2. Lxe6,Lxf5 b5 3. e8=L! b4 4. Lh5 Lf6,L~ 5. Lhxg4#
1. ... b5 2. e8=L! Se6,Sf5 3. Lxe6,Lxf5 b4 4. Lh5 Lf6,L~ 5. Lhxg4#
play all play one stop play next play all
https://www.chess.com/forum/view/more-puzzles/a-challenging-mate-in-5-can-you-find-the-first-move?page=1

http://matplus.net/start.php?px=1601166179&app=forum&act=posts&fid=gen&tid=2507
Henrik Juel: Correct key, but damaged by multiple threats and duals, e.g.
1.Kd3 thr. 2.e8=DTLS,Ke4 (2020-09-27)
James Malcom: Typo fixed. And Henrik, the threats are not the point here. The point here is how the different play of the Black knight changes White's promotions. (2020-09-27)
A.Buchanan: It's a beautiful idea, still looking for its rendering though as the many duals and the obstreperous wL are quite distracting (2020-09-28)
James Malcom: There aren't any duals in full-length variations, though. The extra bishop is indeed annoying, but unfixable so far. (2020-09-28)
A.Buchanan: There are still some trivial duals in the mating move, but yes. This problem is trying to ignore threats: you can see that the computer solution. The solution is much more coherent with "nosh noth" switched on. So when are the cases, Henrik, when you switch those options on? It would be event better if one was able to switch threats on for the 4th move. This underscores that there should be a Popeye option for any white move "noth" is self-selecting, depending upon the number of variations. (2020-09-29)
Henrik Juel: Andrew, I use the Popeye option 'nosh' when the output without them is overwhelmingly large
The 'not' option is tricky, and usually expands the output; in some cases it shows apparent duals that are not real ones, when you apply the rule that dualistic play should be ignored, when it appears after black moves that do not prevent the threat
In the case of multiple threats things get messy, like in this problem, as I recall (2020-09-29)
more ...
comment
Keywords: under-promotion (T, L), Changed mates, Non-standard material (L)
Genre: n#
FEN: 2B4R/4P1n1/1p6/4P3/6nb/1P2p2k/2K1Pprp/5B1N
Reprints: MatPlus.net Forum 10/7/2020
Input: James Malcom, 2020-09-27
Last update: James Malcom, 2020-09-29 more...
34 - P1380329
Stanislaw E. Bogdanowitsch
Problemist of Ukraine 2010
P1380329
(9+6) C+
#6
1. Se6+? Kg8! 2. Se7+ Kf7 3. Sd8+ Kf8 4. Se6+ Kf7
2. f7+? Kh8!

1. Da3+! Txa3 2. Se6+ Kg8 3. f7+ Kxf7 4. Sd6+ Ke7 5. c8=S+ Kd7 6. b8=S#
1. ... Kg8 2. Se7+ Kf8 3. Sxg6+ Kg8 4. Df8#
3. ... Ke8 4. De7#
2. ... Kh8 3. Sf7#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (SS), under-promotion (SS), Checking key
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 2NN1k2/1PP4p/5Pp1/3PP2q/8/5r2/3r4/Q5K1
Reprints: Schach , p. 73, 10/2020
Input: Rainer Staudte, 2020-09-27
Last update: James Malcom, 2020-09-27 more...
35 - P1380353
James Malcom
Guus Rol

www.chess.com 15/7/2020
P1380353
(11+11) C+
#4
1. d8=L!
1. ... Tb8 2. cxb8=L! d4 3. Le5 Lxf4+ 4. Lxf4#
1. ... Txd8 2. cxd8=S! d4 3. Se6 Lxf4+ 4. Sxf4#
1. ... Ta8 2. h8=D! Txd8 3. Txe3+ Kxe3 4. De5#
2. ... d4 3. Dxd4 ... 4. Dxe3#,Txe3#
1. ... Txc7 2. Lxc7 d4 3. Le5 Lxf4+ 4. Lxf4#
1. ... d4 2. Sc4 ... 3. Txd2+ Ke1 4. Lxf2#
play all play one stop play next play all
https://www.chess.com/forum/view/more-puzzles/a-challenging-mate-in-5-can-you-find-the-first-move?page=3
Henrik Juel: C+ Popeye 4.61 (except for a mate dual) (2020-09-27)
more ...
comment
Keywords: under-promotion in the key (L), Promotion (D), under-promotion (S)
Genre: n#
Computer test: Popeye 4.61
FEN: 2r1R3/2PP3P/1N5K/1P1p4/1p3P2/1B1pbp2/3pkrp1/3R1bB1
Input: James Malcom, 2020-09-27
Last update: A.Buchanan, 2020-10-13 more...
36 - P1380357
Hannes Baumann
14969 Schweizerische Schachzeitung 02/2014
P1380357
(6+1) C+
#4
b)wBc6->a6 #3
c)+wSe5 #3
d)+wBa3 #3
a) 1. c8=D,T? patt
1. La8? Ka6!
1. Lc8! Ka8 2. La6 Ka7 3. c8=T Kxa6 4. Ta8#

b) 1. c8=S+! Kb8 2. Se7 Ka7 3. Sc6#

c) 1. c8=L! Kb8 2. c7+ Ka7 3. Sc6#

d) 1. La6! Kxa6 2. c8=D+ Ka5 3. Da8#
2. ... Ka7 3. Db7#
1. ... Ka8 2. c8=D+ Ka7 3. Db7#
play all play one stop play next play all
Vorgänger: P1143924

Duplicate Diagram: P1143924, P1143924

more ...
comment
Keywords: Rex solus (s), under-promotion in the key (S,L), Allumwandlung
Genre: 3#, n#
Computer test: Popeye 4.61
FEN: 8/kBPK4/2P5/2P5/2P5/8/8/8
Input: Rainer Staudte, 2020-09-27
Last update: Alfred Pfeiffer, 2020-10-02 more...
37 - P1380368
James Malcom
MatPlus.net Forum 22/9/2020
Gewidmet Zalmen Kornin & Peter Hoffmann
P1380368
(14+9) C+
#7
1. Sc3+! Kc2 2. exd4 hxg1=D+,T+ 3. Txg1 Lxh5 4. g4 fxg3ep 5. Txg3 Lg4 6. Txg4 Kd3 7. 0-0-0#
play all play one stop play next play all
http://matplus.net/start.php?px=1601242024&app=forum&act=posts&fid=gen&tid=2488

http://www.berlinthema.de/Auswahl_PH.pdf-"J.M. arbeitete weiter am Valladao-Belén und konnte ihn schließlich gemischtfarbig zeigen! Den „Umwandlungsdual“ halten wir für irrelevant, da ohne Pattmotiv die Turmumwandlung kein eigenständiger Zug ist. Und wir anerkennen durchaus die Pionierleistung! Andererseits ist ein ungedecktes Satzmatt eine sehr häßliche Konstruktionserleichterung."
more ...
comment
Keywords: Belen Theme, Valladao Task, Checking key, En passant, Promotion, under-promotion (t), Castling as mating move
Genre: n#
Computer test: Popeye 4.61
FEN: 8/5B2/6P1/3P3Q/2pq1pb1/Bp2Pp2/pP3PPp/RNk1K1NR
Reprints: H48j Der Reiz des Ungewöhnlichen 9/2020
Input: James Malcom, 2020-09-27
Last update: James Malcom, 2020-10-28 more...
38 - P1380523
Nels H. Nelson
760 Los Angeles Times , p. 30, 28/3/1937
"April Fool Joke"
P1380523
(9+5)
#3
1. gxh6ep+! Kxf7 2. 0-0xg1! Sf6 3. e8=sS#!
play all play one stop play next play all
28/3/1937-https://www.newspapers.com/clip/25408700/chess-by-herman-steiner/

"NELS NELSON

We have heretofore published many of Nelson's fine problems and should like to show any readers the more humorous side of his talent. This winter our distinguished friend is spending his vacation in Los Angles. It is with his kind permission that we are publishing this story and problem.

Nels Nelson, born in Denmark in 1871, emigrated to the United States when 12 years of age. He learned the moves of chess in Denmark and began solving and composing problems in 1894. He was chess editor of the Minneapolis State Chess Asccostion, 1911-1912, president of the Minnesota State Chess Asccostion, 19229-1930, and lives at Hopkins, Minn., a suburb of Minneapolis.

AN APRIL FOOL JOKE

A certain celebrated chess master, who we will designate as Mr. "X," while on in the provinces happended into a tavern which was the mecca of the village chess players. Mr. "X," very fond of practical jokes, concieved a plan of sprining on one of the unsuspecting natives. Professing ignorance of the game, the champion of the club offered to teach Mr. "X" its intricacies. After showing Mr. "X' all of the moves with the exception of pawn promotion, pawn takes pawn, etc., and castling, the champion said the following: ""I have purposely ommited three of the manuvers in chess, which to the beginner are somewhat difficult to grasp. They are pawn promotion-when a pawn reaches the eigth rank it ceases to be a pawn but may but it may be converted to any piece on the board and assumes its function at once. It it thus theortically possible to have as many as nine queens on the board at once, and so on down the line." The champion then went to explain the castling on the king and queen side and emphasised the importance of moving the king first. The act of pawn takes pawn "en passant" was then throughly explained and the actual game started with the champio givng odds of queen to Mr. "X," who proved to be a very apt pupil! Mr. "X" lost the first game in short order-walking boldy into a mating net. In the second game he gave the champion quite the battle and won the approbation of that was worthy. In the third game, the champion managed to trap Mr. "X's" queen but had to give up two pieces for it and saw that he had a lost game but continued on in the hope that his expierenced opponent would make some mistake. When the game has reached the postion in the diagram the champion was dumbfounded to hear Mr. "X" announce mate in three moves. "Impossible!" exclaimed the champion. "You should win, of course, but mate in three cannt be done." "Well, if you have interpreted the move and rules correctly, I am certain I see a mate in three," said Mr. "X." "Of course I have interpreted the rules correctly, exclaimed the now irate champion: and I will lay you a wager of dinner for the members of the club that you fail to mate in three moves." "Done!" cried Mr. "X." By this time nearly ever member in the clubwas watching the game with interest. Now, who won this wager? It will be shown in the solution April 11."

11/4/1937-https://www.newspapers.com/clip/25408721/chess-by-herman-steiner/

"SOLUTION TO PROBLEM 760 by N. Nelson: "April Fool Joke."

White: K. on K1 R. on Q7, and KR1: Kt. on KB7 and KB8: B, on QB5: P. on K7, KKt5, and KKt2, Black: K. on KKt2: R. on KKt1: Kt. on K1: B. on KKt8: P. on KR4. (Wh. 9: BL. 5.)

Many members of the club were very fine players and felt their champion would win. Curiously, most of them were pulling for mr. "X," as the champion was somewhat of a braggard and if he won they felt they wouls be hearing about it for a long time. They were, therfore, keenly alert when Mr. "X" started to proceed the game. "My first move is pawn takes en passant," said the smiling Mr. "x." "Of course, I anticipated that move," replied the champion, "and I shall meet it with king takes knight." Oh well then I shall make for my second move, castle: taking the bishop," continued Mr. "X." "This move is according to your definition of castling, perfectly legitimate, as the king moves first, and the bishop being on the knight squar, certainly is subject to capture." "Well," replied the champion, "I must say your interpretation is far fetched, but I will grant you even this point as I fail to see how you mate on the next move: you evidently overlook the fact that when you promote the pawn the king will be able to capture it. Of course, I am forced to interpose my knight and it is pinned, but the king will still be able to take care of that promoted pawn. " Well," smiled Mr. "X," "I shall, however, mate you by pawn to king eight, discovering check, as I shall claim a black knight for the promoted pawn, which, according to your interpretation of pawn promotion, is perfectly legitimate. You stated I might choose any piece on the board and, of course, as the black knight is the only piece that will mate, I naturally selected it."
Exit champion.

We are publishing the best solution sent in my Ladderite L. A. Post, incidentally only two others solved this April Fool Problem.

Problem 760 to complete the tale that Mr. Nelson started to what I believe to be the logical solution according to the rules given by the local champion.
1. White: Pawn takes pawn "en passant" check.
The local champion then captured the white knight reposing on his "bishop two."
1. Black: king takes knight.
"Now," continued Mr. "X" "I understand to quote you, the king moves firstl in castling."
"That is correct," agreed the champion.
Thereupon Mr. "X" executed the move in the prescribed manner by first moving his king to his king knight square and removing the champion's bishop and then setting his rook down on his king bishop square calling check.
The champion was nonplussed, for in stating the rules for "castling" he had failed to forsee a circumstance of this kind. He was forced to admit that, according to his own statement, such a move was possible But seeing in spite of this that it was still impossible to checkmate on the next move, he conceded the point and interposed his knight.
2. Black: Knight to king bishop three.
"Did you not say," resumed Mr. "X," "that in 'pawn promotion' you could reclaim to any piece on the board?"
"That is correct," conceded the champion, "but since you insist on taking me literally I might add that there is no "queen' on the board you may claim in one."
"In that case," stated Mr. "X," "I will be equally generous and present you with a 'knight.'"Whereupon Mr. "X" removed the pawn at king seven and placed a black 'knight' at king eight discovring checkmate to the champion's "king."
"Such a thing is impossbile !" cried the outraged champion.
"Not at all," replied Mr. "X," "for according to your statement that "upon reaching the eight rank a pawn be converted to any piece on the board and assumes its function at once.'"
To this the other members agreed. So the champion held a dinner in honor of Mr. "X," the most apt pupil he had ever taught.

Resepctfully yours,

L.A. Post
Seaman, First Class, U.S. Navy,
U.S..S Texas, San Pedro, Cal."
Henrik Juel: Some help is needed here, James
At least for me (2020-10-01)
A.Buchanan: Hi Henrik I am guessing it’s a cheatyface Valladao:
1. gxh6ep+ Kxf7 2. 0-0+ Sf6 3. f8=sS#
No proof for the ep, castling with capture and promotion to black officer (2020-10-02)
James Malcom: Bingo Andrew! (2020-10-02)
Henrik Juel: Even though I ought to stand by my fellow danish author:
This is a most crude 'joke' problem, especially the 'castling' with capture (2020-10-02)
A.Buchanan: It's kind of a running gag: three silly jokettes which do combine relatively harmoniously (2020-10-02)
A.Buchanan: 1. ... Kf6 allows a short mate, robbing White of the Valladao. 4nNbn/3RP1kN/8/6Pp/8/8/8/4K1bR is the best I can find, fixing the problem, and with less material (2020-10-02)
A.Buchanan: I was hoping that someone would spot that I have shifted a unit to h7 - i.e. the e.p. is even more Foolish :-) I claim it "improves" the problem because currently the e.p. *might* be legal :-) If this is too crude for some, then 4nNr1/3RP1k1/6N1/4P1Pp/8/8/8/4K1bR works. Note you need sTg8 to prevent 2. Sh8#, but wSg6 is blocking g-file, so wBg2 is still free to find other duties on e5. (2020-10-03)
James Malcom: Excellent improvements, Andrew! (2020-10-06)
A.Buchanan: Thanks James: do you think the one with Sh7 is excessively silly? (2020-10-06)
James Malcom: Yes, 'd say a bit too silly. (2020-10-16)
more ...
comment
Keywords: Joke, Valladao Task, Joke promotion (s), En passant as key, Castling, Checking key, under-promotion (s)
Genre: 3#
FEN: 4nNr1/3RPNk1/8/2B3Pp/8/8/6P1/4K1bR
Reprints: Los Angeles Times , p. 13, 11/4/1937
Input: James Malcom, 2020-10-01
Last update: Alfred Pfeiffer, 2020-10-16 more...
39 - P1380560
Mirko Degenkolbe
Steven B. Dowd

Orbit 2007
nach Tivadar Kardos
P1380560
(2+9) C+
h#10
1. Lg1 Kxg1 2. e2 Kh1 3. e1=S Kg1 4. Sf3 gxf3 5. e3 f4 6. e2 fxe5 7. e1=S e6 8. Sd3 e7 9. Sc5 e8=S 10. Sb7 Sc7#
play all play one stop play next play all
SCHRECKE: Kardos: P0500795 (2020-10-16)
comment
Keywords: Minimal (B), Sacrifice key, under-promotion (ssS), konsekutive Umwandlungen 3, Smothered mate, Antiphönix, Phoenix, Corner mate, Stalemate dissolution
Genre: h#
Computer test: Gustav 4.0c
FEN: kn6/n7/p7/4p3/4p3/4p1p1/5bP1/7K
Input: Felber, Volker, 2020-10-03
Last update: Felber, Volker, 2020-11-17 more...
40 - P1380563
Kurt Keller
1649 Augsburger Allgemeine 02/10/2020
P1380563
(10+4) C+
#5
1. d6! droht 2. Dc6#
1. ... a2 2. Db7 droht 3. Db3#
2. ... a1=S 3. Db1 droht 4. Dxa1 La3 5. Dd1#
3. ... Lb2 4. Dxb2 droht 5. Da2#
4. ... Sc2 5. Db3#
play all play one stop play next play all
Aufgabe Nr. 1649 (Fünfzüger
Keller): 1.d6! (droht 2.Dc6#)
1.-,a2 2.Db7 (droht 3.Db3#)
2.-,a1S 3.Db1 (droht 4.Dxa1,La3 5.Dd1#)
3.-,Lb2, 4.Dxb2 (droht 5.Da2#)
4.-,Sc2 5.Db3#.
Harmloser Löwenkäfig!

(Heinz Däubler (Amberg, Germany): Schach, in: Augsburger Allgemeine, 2020-10-17)
Comments:
  • Author – Kurt Keller (Ulm, Germany)
  • Yet Another Chess Problem Database (520193)

Mirko Degenkolbe: Wenn man auf den Käfig verzichtet (der Schlüssel spielt sich ja quasi "von selbst"), kann man den Inhalt auf das Miniaturformat herunterbrechen:
Kc4, Bb6
Ka4, Lc1, Ba3, Ba5, Bc7.
#5
In diesem weißen Minimal gibt es jetzt eine zusätzliche Verführung und ein zusätzliches Matt im Lösungsspiel.
Außerdem ist der Mattdual aus der Originalversion nicht mehr vorhanden. (2020-10-03)
Kurt Keller: Ein interessantes Problem ohne den Käfig zum Vergleich! Das Minimal enthält nicht mehr "Verführungen" als das Käfigproblem. Die einzige "Verführung" des Minimals scheitert an 6! Verteidigungszügen. Das zusätzliche Matt ist nur vierzügig. Das Ende der vollzügigen Lösung beider Probleme ist gleich. Sieht man von der Teilparade jeweils ab, gibt es keinen Mattdual. (2020-10-04)
more ...
comment
Keywords: Skittles, Skittles setup (lion cage), Line opening, Promotion, under-promotion, Sacrifice of black pieces, Active sacrifice
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 8/8/8/p2PPP2/k1KPQP2/p2PPP2/8/2b5
Input: Kurt Keller, 2020-10-03
Last update: Kurt Keller, 2020-10-17 more...
41 - P1380597
Udo Degener
Mirko Degenkolbe

Maroc Echecs 08/2020
4. Lob
10. Maroc Echecs Tourney
Section h#3,5-10
P1380597
(7+9) C+
h#8
1. e5 0-0-0 2. e4 Td3 3. exd3 e4 4. dxe2 e5 5. e1=L e6 6. Lxa5 e7 7. Ld8 exd8=S 8. a5 Sf7#
play all play one stop play next play all
Final award 09/2020
Judge Marcos Roland
[MD 1556]
(Der Preisbericht erschien auf der Website von Abdelaziz Onkoud Ende August 2020.)
Tries:
1. e5 Rb1?
2. e4 Rb5
3.axb5 is surprisingly too slow!

1. e5 Ra3? fails because of the white king standing around in the way.
1. e5 Rd1? also fails because of the white king standing around in the way.
Mirko Degenkolbe: Dies ist das zuglängste korrekte orthodoxe Hilfsmatt, in dem Weiß im ersten Zuge die Rochade ausführt. (2020-10-03)
comment
Keywords: Construction record, under-promotion (lS), konsekutive Umwandlungen 2 (lS), Castling
Genre: h#
Computer test: Gustav 4.1c
FEN: 8/6pp/p3p1pk/P5p1/6Pb/4P1p1/4P1P1/R3K3
Input: Marcin Banaszek, 2020-10-03
Last update: Felber, Volker, 2020-11-10 more...
42 - P1380850
Anatoly Stepochkin
3478 Variantim 81 08/2020
P1380850
(5+2) C+
s#9
1. d8=L! Kh5 2. Dh4+ Kg6 3. g8=D+ Kf5 4. Dhg3 Ke4 5. Lb6 Kf5 6. Kg7 Ke4 7. Kf8 Kf5 8. D8g4+ Kf6 9. Ld8+ Txd8#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (LD), Minimal (t), Miniature, under-promotion in the key (L)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 7K/3P2P1/6k1/8/5Q2/3r4/2B5/8
Input: Rainer Staudte, 2020-10-12
Last update: Alfred Pfeiffer, 2020-10-13 more...
43 - P1380855
James Malcom
MatPlus.net Forum 12/10/2020
P1380855
(14+14) C+
BP in 12.0
1. g3 d6 2. Lg2 Dd7 3. Ld5 Dh3 4. Le6 fxe6 5. a4 Kf7 6. a5 Kg6 7. a6 Kh5 8. axb7 g6 9. bxa8=L Lg7 10. Lg2 Lxb2 11. Sf3 Lg7 12. Lb2 Lb7
play all play one stop play next play all
James Malcom: The theme is that 5 bishops are fianchettoed-one more than normally allowed! (2020-10-13)
Rainer Staudte: Rules allow a 20-bishops-fianchetto. (2020-10-13)
Henrik Juel: Very nice, James
For this short PG any tester will suffice, but if you push this idea further, Natch is much faster than Jacobi (2020-10-13)
A.Buchanan: Can’t a fianchettoed bishop go round to the bank rank and do it again? So even 20 is not a barrier (2020-10-13)
A.Buchanan: Dates in PDB are yyyy-mm-dd or dd/mm/yyyy. Hence I will change publication date from Dec to Oct (2020-10-13)
James Malcom: Right-the date slipped me again!

Andrew, while a bishop can easily be fianchettoed twice+, about the number of bishops doing it, not how many times it is done. I'm sure that an expert could do 6 fianchettoing bishops. (2020-10-13)
A.Buchanan: I am joking James: this is cool already (2020-10-13)
comment
Keywords: under-promotion (L), Phoenix, Impostor (L), Unique Proof Game
Genre: Retro
Computer test: Jacobi v0.7.5
FEN: 1n4nr/pbp1p1bp/3pp1p1/7k/8/5NPq/1BPPPPBP/RN1QK2R
Input: James Malcom, 2020-10-13
Last update: James Malcom, 2020-10-14 more...
44 - P1380892
Courtnay Lemon
343 American Chess Magazine Volume 2, p. 284, 12/1898
P1380892
(7+6)
#3
1. bxc6ep+! Kc7 2. 0-0-0 Dxb4 3. a8=S#
play all play one stop play next play all
Solution text from the 2/1899 issue: "A clever rendering of this "triple idea." It will be seen that Black cannot play simply 2.R-Q sq on account of 3. Q x Q ch."
zum Autor heißt es im 'ACM': Courtenay Lemon, New York
James Malcom: I found this most excellent early Valladao while ago, but only today did I finally find it again. This is the second one that I've found, i.e. P1380523

Is this the second oldest known Valladao after the 1867 P1360420 found by Keym?

The mainline should be C+, with the "legitimate" ep key, but with many dualed sidelines. (2020-10-14)
Henrik Juel: Something seems missing, James
There is no mate 3... Kc8,Kxc6 (2020-10-14)
Henrik Juel: Adding wSe7 would help (2020-10-14)
James Malcom: Henrik, Mario-many thanks!-has now fixed the position. I had missed the wSe7 when entering! (2020-10-14)
comment
Keywords: Joke (e.p.), En passant as key, Castling, under-promotion in mating move (S), Valladao Task
Genre: 3#
FEN: 1b6/Pk2N3/1q6/1Pp5/1Q6/4p1p1/2P5/R3K3
Input: James Malcom, 2020-10-14
Last update: Mario Richter, 2020-10-14 more...
45 - P1381021
Otto Gross
22 Aufbau (New York) 24/09/1943
P1381021
(8+5)
#3
1. b8=L! droht 2. Le5+ Sb2 3. Dxa5#,Lxb2#
2. ... Sc3 3. Dxa5#
1. ... Ta7+ 2. Lxa7 Sc5 3. Lxc5#
2. ... Sb6 3. Lxb6#
1. ... Sc3 2. Dxa5+ Sa2 3. Le5#,Dxa2#
2. ... Sa4 3. Le5#
play all play one stop play next play all
Henrik Juel: Damaged by mate duals (2020-10-17)
comment
Keywords: under-promotion in the key (L), Stalemate avoidance
Genre: 3#
FEN: Q5R1/1P5K/8/rp6/np6/1P1N4/3N4/kB6
Input: Mario Richter, 2020-10-17
Last update: Alfred Pfeiffer, 2020-10-17 more...
46 - P1381025
Otto Gross
26 Aufbau (New York) 29/10/1943
P1381025
(8+2) C+
#3
1. c8=T! (Zugzwang)
1. ... Sxc2 2. Txc2 ... 3. Sc3#
1. ... Sxb3 2. Sc4 ... 3. Sc3#
1. ... Kb1 2. Sc4 ... 3. Sc3#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion in the key (T)
Genre: 3#
Computer test: popeye 4.85
FEN: 8/2P5/3K2B1/N7/8/1P6/kBP5/n2N4
Input: Mario Richter, 2020-10-17
Last update: Alfred Pfeiffer, 2020-10-17 more...
47 - P1381108
Salman Javadzade
Vidadi Zamanov
Viktor Volchek

Problemist of Ukraine 2020
5. ehrende Erwähnung
Stanislaw-Kirilitschenko-Memorial
P1381108
(4+2) C+
#6
1. d4 g5 2. d5 Kg6 3. d6 Kf6 4. d7 Ke6 5. d8=T! Kf6 6. Td6#

5. d8=D? patt
4. ... Kg6 5. d8=D! Kh7 6. Dd3# 5. d8=T?
3. ... Kh7 4. d7! Kg6 5. d8=D! Kh7 6. Dd3#
play all play one stop play next play all
more ...
comment
Keywords: Excelsior, under-promotion (T), Promotion (D)
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-18)
FEN: 5K2/5N1k/6p1/8/6P1/8/3P4/8
Input: Rainer Staudte, 2020-10-18
Last update: Alfred Pfeiffer, 2020-10-21 more...
48 - P1381221
G. Appelt
200 Märkische Volksstimme 07/12/1926
P1381221
(9+10) C+
#2
1. Sg6! droht 2. Se7#
1. ... Dxg6 2. Dc2#
1. ... Sxg6 2. Dxg2#
1. ... fxg6 2. Dxe6#
1. ... Txg6 2. d8=S#
1. ... Te8 2. dxe8=D#,dxe8=L#
play all play one stop play next play all
'ASD': "Diese Aufgabe war eine der ersten, die der jugendliche Komponist veröffentlichte. Wenn sie auch noch nicht ganz so ausgefeilt ist, wie man es heute bei modernen Zweizügern findet, so ist das Stück doch immerhin für den Anfang als sehr gut zu bezeichnen."
Henrik Juel: C+ Popeye 4.61 (except for the promotion mate dual) (2020-10-22)
comment
Keywords: under-promotion in mating move (S,L), Promotion in the mating move (D)
Genre: 2#
Computer test: Popeye 4.61
FEN: 6r1/3P1p2/PNk1pP2/Kp2Bp2/pP3N1n/8/Q5q1/7r
Reprints: 27 Arbeiterstimme Dresden 03/12/1927
Input: Mario Richter, 2020-10-22
Last update: Alfred Pfeiffer, 2020-10-22 more...
49 - P1381237
K. Bürger
129 Volksfreund Recklinghausen 21/07/1926
P1381237
(6+5)
#3
1. Dc7! droht 2. Lxb3+ Kxb1 3. Dc2#,Lc2#,Sxd2#
2. ... Kxb3,Kd3 3. Dc4#
sowie 2. Le2+ Kxb1 3. Sxd2#
1. ... Sd3 2. Lxb3+ Kxb1 3. Dc2#,Sxd2#
2. ... Kxb3 3. Dc4#
Co-Dual 2. Lxd3+ Kxd3 3. Dc4#
1. ... Sa2 2. Ld3+ Kxd3 3. Dc4#
1. ... Kxb1 2. Ld3+ Sxd3 3. Sxd2#
1. ... Kd1 2. Se3+ Ke1 3. Dg3#
1. ... d1=D+,d1=T+ 2. Ld3+ Kxd3 3. Dc4#
1. ... d1=S 2. Lxb3+ Kxb1 3. Dc2#,Lc2#,Sd2#
2. ... Kxb3,Kd3 3. Dc2#,Dc4#
Co-Dual 2. Ld3+ Kxd3 3. Dc4#
play all play one stop play next play all

Duplicate Diagram: P1286414

steingetreu P1286414 (evtl. dort falsch zitiert?!)

zum Autor heißt es in der 'ASD': K. Bürger, Essen
Henrik Juel: Damaged by duals
tiny typo: stipulation should be #3, not #2 (2020-10-22)
comment
Keywords: Promotion (d), under-promotion (t,s)
Genre: 3#
FEN: 8/8/R7/3K4/2B5/1p6/1pkp3Q/1Rn2N2
Reprints: 46 Arbeiterstimme Dresden 16/04/1928
Input: Mario Richter, 2020-10-22
Last update: Alfred Pfeiffer, 2020-10-22 more...
50 - P1381266
James Malcom
(2) MatPlus.net Forum 27/9/2019
P1381266
(6+7) C+
#7
1. Kc1! d6 2. h8=S! gxh6 3. Sg6 h5 4. Sf4 h4 5. Sxd3 h3 6. Se1 h2 7. Sc2#
play all play one stop play next play all
https://www.matplus.net/start.php?px=1603494562&app=forum&act=posts&fid=xshown&tid=2346
James Malcom: This composition is one of my personal favorites amongst mine. It was inspired be Krabbe's Journal #89, which touches on the so called theme of "remote knight promotion." The point of this is to show the aximum diaganol distance with kings and pawns only.

A Meredith rendering is still pending for any geniuses out there. (2020-10-24)
more ...
comment
Keywords: Stalemate avoidance, Kindergarten Problem, under-promotion (S)
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/3p2pP/7P/p2P4/p7/P2p4/p2P4/k2K4
Input: James Malcom, 2020-10-24
Last update: Alfred Pfeiffer, 2020-10-26 more...
51 - P1381267
James Malcom
(1) Mat Plus 21/10/2020
P1381267
(9+13)
#12
(-:
1. a8=sS! Sb6 2. cxb6 cxb6 3. c7 b5 4. c8=S b4 5. Sd6 exd6 6. e7 d5 7. e8=S d4 8. Sf6 gxf6 9. g7 f5 10. g8=S f4 11. Sh6 Sg5 12. Sg4#
play all play one stop play next play all
more ...
comment
Keywords: Joke, Joke promotion (s), konsekutive Umwandlungen 4 (sSSS), under-promotion in the key (s)
Genre: n#
FEN: 7R/P1p1p1p1/2P1P1P1/2P5/8/1B1P1ppn/4prqk/4Kbnr
Input: James Malcom, 2020-10-24
Last update: Alfred Pfeiffer, 2020-10-24 more...
52 - P1381276
Erich Bartel
3226.1 Scobs lignea 23/10/2020
P1381276
(1+1) C+
ser-==7
Haaner Schach
Equipollentscirce
1. a7 2. a8=T 3. Tb8 4. Tb5 5. Tb4 6. Ta4 7. Txa5==
play all play one stop play next play all
more ...
comment
Keywords: under-promotion (T), Haaner Chess, Circe (Equipollents-), Oneliner (a5a6)
Genre: Fairies
Computer test: %Popeye FreeBSD-9.1-RELEASE-amd64-64Bit v4.59
FEN: 8/8/P7/n7/8/8/8/8
Input: Erich Bartel, 2020-10-25
Last update: Alfred Pfeiffer, 2020-10-26 more...
53 - P1381343
Eugene B. Cook

P1381343
(4+2) C+
#3
1. c8=T! droht 2. f8=D+,f8=T
1. ... Ke6 2. f8=T Kd6 3. Tf6#
play all play one stop play next play all
gespiegelt, Original: P1030392
more ...
comment
Keywords: under-promotion (T)
Genre: 3#
Computer test: Popeye 4.61
FEN: 4K3/2P2P2/3k4/3p4/3P4/8/8/8
Reprints: 19 Herdflammen 28/12/1928
Input: Mario Richter, 2020-10-28
Last update: Alfred Pfeiffer, 2020-10-29 more...
54 - P1381378
Anton Baumann
19249 Schach , p. 80, 07/2020
P1381378
(7+8) C+
s#8
Zeroposition
a) wBd3->e4
b) wLd1->h5
a) 1. Lb3+! Kf8 2. Df6+ Ke8 3. c8=T+ Kd7 4. Td8+ Kc7 5. Dd6+ Kb7 6. Ld5+ Ka7 7. Txh8 Se8 8. Txe8
7. ... Se6 8. Dxe6
7. ... Sf5 8. exf5
7. ... Sh5 8. Txh5

b) 1. g4! Kf8 2. Df6+ Kg8 3. c8=D+ Kh7 4. Lg6+ Kh6 5. Lf7+ Kh7 6. Dxh8+ Kxh8 7. Dg6 Se8 8. Lxe8
7. ... Se6 8. Lxe6
7. ... Sf5 8. gxf5
7. ... Sh5 8. gxh5
3. ... Se8 4. Dxe8+ Kh7 5. De4+ Kg8 6. Dxh8+ Kxh8 7. Dg6
play all play one stop play next play all
19.249 (Baumann) a) 1.Lb3+! Kf8 2.Df6+ Ke8 3.c8T+ Kd7 4.Td8+ Kc7 5.Dd6+ Kb7 6.Ld5+ Ka7 7.T:h8 Se8/Se6/Sd5/Sh5 8.T:e8/D:e6/e:f5/T:h5 S matt; b) 1.g4! Kf8 2.Df6+ Kg8 3.c8D+ Kh7 4.Lg6+ Kh6 5.Lf7+ Kh7 6.D:h8+ K:h8 7.Dg6 Se8/Se6/Sf5/Sh5 8.L:e8/L:e6/g:f5/g:h5 S matt, 3… Se8 4.D:e8+ Kh7 5.De4+ Kg8 6.D:h8+ K:h8 7.Dg6 S matt (4 P.). „Die schwarze Springer-Turm-Batterie muss Matt setzen. Der bewegliche sSg7 wird von Weiß geschlagen, so dass wegen Zugzwang der sSg1 Matt setzen muss. Prima“ (KHS).
more ...
comment
Keywords: Checking key, under-promotion (T), Promotion (D)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 6kb/2P3n1/6Q1/8/8/p2P2P1/P5pp/K2B2nr
Input: Felber, Volker, 2020-10-29
Last update: Alfred Pfeiffer, 2020-10-30 more...
55 - P1381410
Aleksandr Pankratiev
Gravure 2020
4. Lob
P1381410
(6+2) cooked
s#12
1. e8=L! Ka5 2. Te7 Ka6 3. Ld7 Ka5 4. Te8 Ka6 5. Dc8+ Ka5 6. Dc3+ Ka6 7. Dc4+ Ka5 8. Db4+ Ka6 9. Da4+ Kb7 10. Dc6+ Kb8 11. Se7 Lg1,~ 12. Db6+ Lxb6
11. ... Lb6+ 12. Dc7+ Lxc7#
play all play one stop play next play all
Cook: Viele NL in 9 Zügen:
1.Lg2 1.Lf3 1.Le4 1.Sc3 1.Tb8 1.e8=D 1.e8=L
zB:
1. e8=D(L) Ka5 2. Se7 Ka6 3. Lc6 Ka5 4. Ld7 Ka6 5. Tb4 Ka5 6. Ta4+ Kb6 7. Dd5 Lb8 8. Da5+ Kb7 9. Dc7+ Lxc7#
(Anton Baumann)
Anton Baumann: Viele NL in 9 Zügen: 1.Lg2 1.Lf3 1.Le4 1.Sc3 1.Tb8 1.e8=D 1.e8=L
zB: 1.e8D(L) Ka5 2.Se7 Ka6 3.Lc6 Ka5 4.Ld7 Ka6 5.Tb4 Ka5 6.Ta4+ Kb6 7.Dd5 Lb8 8.Da5+ Kb7 9.Dc7+ Lxc7#
- ist die Stellung korrekt? (2020-11-10)
Olaf Jenkner: Ja, aber die Lösung war nicht die Autorlösung. Um das Abtippen zu sparen, hatte ich eine Lösung mit Gustav ausgerechnet und angenommen, daß es die Autorlösung sei. (2020-11-10)
comment
Keywords: under-promotion in the key (L)
Genre: s#
FEN: Q2K4/bR2P3/k7/3N4/8/8/8/7B
Input: Olaf Jenkner, 2020-10-31
Last update: Olaf Jenkner, 2020-11-10 more...
56 - P1381455
Mirko Degenkolbe
14210 Springaren 148 12/2018
P1381455
(5+10) C+
h#7
Nullstellung
a) +wSh1
b) wLg1->h2
a) 1. d3 Lh2 2. d2 Lg1 3. d1=S Lh2 4. Sxf2 Lg1 5. Sd3 Sf2 6. Ke3 Sxg4 7. Ke4 Sf6#
b) 1. Kxf2 Lg1 2. Kg2 Lxd4 3. Kxg3 Lxb2 4. Kxf4 Kc1 5. g3 Kd2 6. Lg4 Lc1 7. Le5 Kd3#
play all play one stop play next play all
[MD 1390]
Inhalt:
In Lösung a) Rundlauf/Rückkehr des sBd4: d3-d2-d1S-Sxf2-Sd3!
Mustermatt.
In Lösung b) zweimal Beseitigung hinderlicher weißer Masse: Der wBf2 wird beseitigt, um den weißen Läufer aus seinem Käfig zu lassen. Der wBg3 wird beseitigt, damit dort ein schwarzer Bauer im Mattbild blocken kann. Tempoverlust des weißen Königs im zweiten Zuge. Umnow-Effekte bei Schwarz in den Zügen 4 bis 6 und bei Weiß in den Zügen 5 und 6 bei Weiß.
more ...
comment
Keywords: Round Trip, Model mate, Umnov, under-promotion (s)
Genre: h#
Computer test: SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force
FEN: 8/8/8/5p2/1p1p1Pp1/1p3pPb/1p2kP2/bK4B1
Input: Felber, Volker, 2020-11-01
Last update: Felber, Volker, 2020-11-11 more...
57 - P1381543
Ivan Soroka
7651 Phénix 268 12/2016
P1381543
(5+2) C+
s#11
1. g7-g8=D+! Kf7-f6 2. Dg8-g4 Kf6-f7 3. Kh7-h8 Kf7-f6 4. Df4-g5+ Kf6-f7 5. Dg5-h5+ Kf7-f6 6. d7-d8=S Sf5-e3,S~ 7. Dg4-f4+ Se3-f5 8. Df4-d6+ Sf5xd6 9. Dh5-e5+ Kf6-g6 10. Te8-g8+ Kg6-h6 11. Sd8-f7+ Sd6xf7#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-11-11)
comment
Keywords: Promotion in the key, Checking key, under-promotion (S), konsekutive Umwandlungen 2 (DS)
Genre: s#
FEN: 4R3/3P1kPK/8/5n2/5Q2/8/8/8
Input: Marcin Banaszek, 2020-11-04
Last update: Marcin Banaszek, 2020-11-12 more...
58 - P1381558
Milomir Babic
8091 Phénix 279-280 11-12/2017
P1381558
(11+7)
s#11
1. Tb1+! Sxb1 2. Da3+ Sxa3 3. 0-0+ Sb1 4. a8=T+ La7 5. d5+ e5 6. dxe6ep+ Tg7+ 7. Kh1 e2 8. Te1 h5 9. b8=D h4 10. Db7 h3 11. Dg2 hxg2#
play all play one stop play next play all
Henrik Juel: Damaged by the dual 7... h5 8.b8=D,Te1 (2020-11-05)
comment
Keywords: Checking key, Castling, under-promotion (T), Promotion (D), En passant, Pawn mate, Corner mate, Pinning, pin-mate
Genre: s#
FEN: 7B/PPr1p3/7p/2b5/1NNP4/n2Qp3/1R5P/k3K2R
Input: Marcin Banaszek, 2020-11-05
Last update: Gunter Jordan, 2020-11-05 more...
59 - P1381570
Grigory Popov

P1381570
(11+12)
#33
1. a8=D! Da5 2. Dxa5 Txa5 3. b8=D Ta1 4. Da8+ Txa8 5. e8=D Ta1 6. Da8+ Txa8 7. La3 Txa3 8. g8=D Ta1 9. Da8+ Txa8 10. c8=D Ta1 11. Dc6+ e4 12. Da4 Txa4 13. h8=D Tb4 14. Sc3 Tb2 15. d8=D Te2 16. Sxe2 dxe2+ 17. Kxe2 Kg2 18. Da1 Sf4+ 19. Kd2 f1=S+ 20. Kc3 Se2+ 21. Kxc4 Le3 22. f8=D Seg3 23. Dfa3 Sd2+ 24. Kb5 Lf4 25. Dd1 Sdf1 26. Da2,Db2+ Sd2 27. Daxd2,D8xd2+ Lxd2 28. D8xd2,D2xd2+ Kh3 29. Df2 e3 30. Dxe3 f4 31. Df2 Sf1 32. Ddf3+ Sg3 33. D2g2#
play all play one stop play next play all
Reprint: http://superproblem.ru/archive/probl/N/Popov-33-2018.gif
James Malcom: This may very well be impossible to C+ with Gustav, but there is an alternative for manual/partial testing by using chess.com's free analysis. When you enter in the position, it completely agrees with the first full 14 moves. It ponders on 15. between which pawn to queen. If you manually enter 15. d8=Q, then the following engine evaluation generally agrees with the solution, and eventually is will find the mate on some point. (2020-11-06)
A.Buchanan: It’s not a matter of style whether you have space after comma in the solution. It’s incorrect syntax for the editor (2020-11-06)
comment
Keywords: Konsekutive Umwandlungen 9 (DDDDDDDsD), Promotion in the key, under-promotion (s)
Genre: n#
FEN: 5B2/PPPPPPPP/q7/3rppp1/2p4p/3p3n/5p2/3N1Kbk
Input: James Malcom, 2020-11-06
Last update: Alfred Pfeiffer, 2020-11-07 more...
60 - P1381630
Erik Richter
B Deutsche Schachzeitung , p. 422, 12/1975
P1381630
(4+4) C+
#2
1. f8=S! Scd5,Sa8,Sc6,Sb5,Sa6,Se6,Se8 2. Se6#
1. ... Sc6 2. Sxc6#
1. ... Sed5,Sf5,Seg6,Sg8,Sc8 2. Sc6#
1. ... Sf7,Shg6 2. Sexf7#
play all play one stop play next play all
more ...
comment
Keywords: Non-standard material, under-promotion in the key (S)
Genre: 2#
Computer test: popeye 4.85
FEN: 3k3n/2n1nP2/3N4/4N3/8/8/8/K7
Input: Rainer Staudte, 2020-11-08
Last update: Alfred Pfeiffer, 2020-11-09 more...
61 - P1381642
Milomir Babic
8650 Phénix 301-302 11-12/2019
P1381642
(8+7)
s#11
1. d3-d4+! f7-f5 2. g5xf6ep+ Tg4-g6 3. 0-0+ Lf4-c1 4. Kg1-h1 h5-h4 5. Lg3-h2 h4-h3 6. f6-f7 b5-b4 7. f7-f8=L h6-h5 8. Lf8-d6 h5-h4 9. Lh2-g1 h3-h2 10. Ld6xh2 h4-h3 11. Tf2-g2 h3xg2#
play all play one stop play next play all
SCHRECKE: Nach 4. ... b4 geht 5.Lh2 oder 5.f7 (2020-11-09)
comment
Keywords: Checking key, En passant, Castling, under-promotion (L), Valladao Task, Pawn mate
Genre: s#
FEN: 8/5p1B/7p/1p4Pp/5br1/1N1P2B1/5R2/1k2K2R
Input: Marcin Banaszek, 2020-11-09
Last update: Alfred Pfeiffer, 2020-11-09 more...
62 - P1381646
Milomir Babic
8358v Phénix 301-302 11-12/2019
1. ehrende Erwähnung
P1381646
(12+7) C+
s#9
1. c7-c8=T+! Kc6-d5 2. f7xe8=L b7-b6 3. h7-h8=D b6xc5 4. Dh8-f6 c5xd4 5. Le8-g6 d4-d3 6. Df6-g5 Kd5xd6 7. e7-e8=S Kd6-d5 8. Se8-f6+ Kd5-d6 9. Te1-e6+ d7xe6#
play all play one stop play next play all
Version zu: P1381602
PR Yves Tallec 04-05/2020
SCHRECKE: Das ist ein s#9!
C+, Gustav 4.1d, Brute Force
Umwandlungsläufer sLe8! (2020-11-09)
comment
Keywords: Checking key, under-promotion in the key, Model mate, Selfblock, Allumwandlung, Pawn mate, Obtrusive material, konsekutive Umwandlungen 4 (TLDS)
Genre: s#
Computer test: Gustav 4.1c
FEN: 4b3/1pPpPP1P/2kP4/1pP2K2/1prP4/1B6/3P4/B3R3
Input: Marcin Banaszek, 2020-11-09
Last update: James Malcom, 2020-11-09 more...
63 - P1381700
A. H. Bobbins
154 American Chess Magazine Vol. 1, p. 443, 12/1897
P1381700
(6+3)
=2 durch Schwarz

Black forces a draw in two moves
1. ... c1=wL!
2. Sb1 axb1=wL! Patt
2. Db1+ axb1=B! Patt
play all play one stop play next play all
James Malcom: I've added in the solution now. (2020-11-11)
comment
Keywords: Joke, Joke promotion, under-promotion in the key, konsekutive Umwandlungen 2 (LL, Lb), Dummy Pawn
Genre: Fairies
FEN: 8/P7/8/5B2/8/K1NQ4/pPp5/k7
Input: James Malcom, 2020-11-10
Last update: Alfred Pfeiffer, 2020-11-12 more...
64 - P1381880
Nikolay A. Zharkov
Probleemblad 1993
1. Preis h#
151. Thematurnier
P1381880
(5+4) C+
h#2
Bosma
b) wBd4->e3
c) ferner wBd3->e4
a) 1. Dc5 d5 2. e1=T Kg1#
b) 1. Dxd3 e4 2. e1=L Kg3#
c) 1. Dd5 e5 2. e1=S Kg2#
play all play one stop play next play all
Preisrichter: "In a very subtle way three minor promotions emerge which appeal to me very much. Personally, I have a soft spot for problems like this."
A.Buchanan: Are Nikolai Sharkow & Nikolai A. Sharkow the same person? The areas of interest seem sufficiently distinct that I didn't want to merge PDB composer IDs without confirmation. (2020-11-14)
Henrik Juel: I expect that NS and NAS are identical, but who knows?
What are the solutions?
I see a Bosma mate with Df5 on, say, c2, e1=S, and Kh2 on g2, but I cannot get there (2020-11-14)
A.Buchanan: Really rather nice twinning. WinChloe thinks these are the same guy, so I'll go with that. (2020-11-14)
Henrik Juel: Certainly a worthy prize winner (2020-11-14)
comment
Keywords: Bosma, under-promotion (t,l,s), Capture key
Genre: h#, Fairies
Computer test: C+ WinChloe 3.51
FEN: 4N1rk/8/8/5q2/3P4/3P4/4p2K/7R
Input: A.Buchanan, 2020-11-14
Last update: A.Buchanan, 2020-11-18 more...
65 - P1382003
Jan Hartong

P1382003
(9+8) C+
#2
1. h8=S! droht 2. Sxf7#
1. ... Dxh8 2. Tc6#
1. ... Lxh8 2. De6#
1. ... Sgxh8 2. Le7#
1. ... Sfxh8 2. Txd8#
1. ... Txh8 2. Td7#
1. ... Dc6,Dh7 2. Txc6#,Tc6#
1. ... Dd5 2. Sb5#
1. ... Lxc3 2. De6#
1. ... Sxg5,Sh6 2. Txd8#
1. ... Td7,f8 2. Txd7#,Td7#
play all play one stop play next play all
Originalquelle laut 'NWT': "Turn. Breslau 1924"
more ...
comment
Keywords: under-promotion in the key (S)
Genre: 2#
Computer test: Popeye 4.61
FEN: 2Rr4/2R2n1P/1P1k2n1/p1N1b1B1/5p2/K1N5/8/4Q2q
Reprints: Neues Wiener Tagblatt 06/02/1944
Input: Mario Richter, 2020-11-16
Last update: Alfred Pfeiffer, 2020-11-21 more...
66 - P1382177
Mechislovas Rimkus
8353 Phénix 290-291 11-12/2018
Lob
P1382177
(2+6) C+
h#10
0.1.1...
1. ... Lh8-d4 2. Lc5-d6 Ld4xb6 3. Ld6-g3 Lb6-c5 4. b7-b5+ Ka7-a6 5. b5-b4 Ka6-b5 6. b4-b3 Kb5-c4 7. b3-b2 Kc4-d3 8. b2-b1=L+ Kd3-e2 9. Lb1-e4 Ke2-f1 10. Le4-h1 Lc5-g1#
play all play one stop play next play all
PR Menachem Witztum 11-12/2019
more ...
comment
Keywords: Minimal (L), Model mate, Liniensperrung, Check Protection, Excelsior, black, under-promotion (l), Selfblock
Genre: h#
Computer test: C+ Popeye 4.61
FEN: 7B/Kpq5/1r6/2b5/8/7r/7k/8
Input: Marcin Banaszek, 2020-11-20
Last update: Gunter Jordan, 2020-11-20 more...
67 - P1382309
Ernst Bruno Evald Breider
Karjala 24/12/1926
P1382309
(4+3)
#3
1. Le4! Kd6 2. c8=T Kd7 3. Td8#
1. ... Kc8 2. Lf5+ Kb7 3. c8=D#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.85 (2020-11-22)
comment
Keywords: under-promotion (T)
Genre: 3#
FEN: 8/p1Pk4/p4K2/B7/8/8/2B5/8
Input: Rainer Staudte, 2020-11-22
Last update: Rainer Staudte, 2020-11-22 more...
68 - P1382346
Woldemar Hoffmann
1131 Wiener Hausfrauen-Zeitung 37, p. 293, 16/09/1900
P1382346
(5+3)
#3
1. f8=L! droht 2. Sf6,e7+ ... 3. e7#,Sf6#
1. ... Ld7 2. e7+ Ke8 3. Sxd6#
1. ... Lf7 2. e7+ Kd7 3. Sf6# 2. ... Ke8 3. Sf6#
1. ... La4,Lb5,Lc6 2. Sf6 ... 3. e7#
1. ... Lh5,Lg6 2. Sf6 ... 3. e7#
play all play one stop play next play all
in WHZ gespiegelt P1216010
Nachdruck in 'Maailma' ohne Angabe Autor/Quelle
Henrik Juel: C+ Popeye 4.61 (the double threat never materializes) (2020-11-24)
comment
Keywords: under-promotion (L), under-promotion in the key (L)
Genre: 3#
FEN: 1K1kb3/5P2/3pP3/3P4/4N3/8/8/8
Reprints: 8 Maailma 01/04/1924
Input: Mario Richter, 2020-11-24
Last update: Gunter Jordan, 2020-11-24 more...
69 - P1382544
Jorma Pitkänen
12069 feenschach 236 07-08/2019
P1382544
(7+6) C+
s#4
1. La4! g1=S 2. Ld1 Se2 3. Lc5+ Sd4 4. Dxg4 f2#
1. ... g1=L 2. Dxf3+ gxf3 3. Ld1 Lxh2 4. Lxh2 f2#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (also)
1... g1=DT+? 2.Sf1+ DTxf1# (2020-11-28)
comment
Keywords: under-promotion B/S, Model mate, Selfblock, Pinning, Pawn mate
Genre: s#
Computer test: Popeye Windows-64Bit v4.69 (7453 MB)
FEN: 8/8/2BB4/8/2R3p1/2RbkpQp/6pN/4K3
Input: Frank Müller, 2020-11-28
Last update: Marcin Banaszek, 2020-11-30 more...
70 - P1382659
Otto Friedrich Binkert
56 Volksgemeinschaft (Heidelberg) 26/04/1936
Dir. Pg. Koebele, Freiburg, gewidmet
P1382659
(10+7)
#3
1. d8=S! droht 2. Sc6+ Kxc3 3. De5# 2. ... Kc5 3. Le3#
1. ... Ld5 2. Sxd5+ Ka5 3. Da7#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2020-12-02)
comment
Keywords: under-promotion (S)
Genre: 3#
FEN: 6b1/2QP4/1P3K2/1p6/nkp1P3/2N2p2/P1p1PP2/2B5
Input: Mario Richter, 2020-12-02
Last update: Mario Richter, 2020-12-02 more...
Show statistic for complete result.

The problems of this query have been registered by the following contributors:

Gerd Wilts (2)
Felber, Volker (10)
hpr (2)
Frank Müller (6)
Zuncke/Bruder (3)
Mario Richter (10)
Erich Bartel (3)
Rainer Staudte (8)
James Malcom (16)
Marcin Banaszek (7)
Kurt Keller (1)
Olaf Jenkner (1)
A.Buchanan (1)