Die Schwalbe

14 problem(s) found in 3484 milliseconds (displaying 14 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Nicht-Partiesatzmaterial']

1 - P0006242
Harold Holgate Cross
5553 FEENSCHACH 09-10/1961
P0006242
(12+15)
#1
b) Be2 nach e3
Mario Richter: vgl. P1011972 (dort sLa3 statt sTa3) (2020-09-23)
comment
Keywords: Castling, Non-standard material
Genre: Retro
FEN: 8/2ppp2p/1p6/1p6/brPN4/rqP3PP/nbrPPP1r/RNk1K2R
Input: Gerd Wilts, 1995-08-14
Last update: Gerd Wilts, 2004-09-12 more...
2 - P0007793
Gerd Wilts
1318 Rochade Europa 09/1996
2. ehrende Erwähnung
Informalturnier 1996-1997
Übriges Märchenschach
P0007793
(13+13)
Welches waren die letzten 25 Einzelzüge?
R: 1. Sc5-b7+ f2-f3 2. Sa6-c5 c6-c7 3. Sc7-a6+ c5-c6 4. f6-f5 c4-c5 5. f7-f6 c2-c4 6. c4xTb3 Tc3-b3 7. c5-c4 b3-b4 8. c6-c5 Lb4-a3 9. a3-a2 Tc5-c3 10. a4-a3 Th5-c5 11. b5xLa4 Th8-h5 12. b6-b5 h7-h8=T 13. b7-b6
play all play one stop play next play all
PR Jörg Kuhlmann 03/1999
Henrik Juel: Next retraction is not unique: 13... g6xTLh7 (2020-11-26)
comment
Keywords: Ceriani-Frolkin Theme, Last Moves?, Non-standard material
Genre: Retro
FEN: 1bRqrb2/pnPRn1p1/3Kp3/P4p2/1P1k4/Bp1P1P2/p2P2P1/2N1N3
Input: Gerd Wilts, 1996-09-03
Last update: Marcin Banaszek, 2020-11-26 more...
3 - P1001097
Michel Caillaud
R121 Probleemblad 01/2001
Special Prize 2001
P1001097
(12+13) C+
h#2
1. cxb6 d6 2. bxc5 Txb8#
1. La7 Lxa7 2. 0-0-0? Tb8#
play all play one stop play next play all
Castling is impossible because, if black can still castle, the diagram position is draw due to the 50-move rule!
White captures: axb, bxc, exf. Black captures: hxg, gxf, exd, dxc. Promotions: a1=T, b1=T, h8=X. The position can only be unblocked by unpromoting White piece on h8. This can only be wRb5. wK must go to c6 to unpin wR. The journey is via g3, h2, e1, b2, & a3.The 50 white moves are: 34 by wK (screens on c8 [with careful step on a2 to let bB pass] then g8), 11 by wB6 (to e3 to exchange place with bB then screen on a7), 3 by wR (promotion on h8), 2 by wBa4.
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comment
Keywords: Non-standard material (tt), 50 move rule, Cant Castler
Genre: Retro, h#
Computer test: Popeye WINDOWS-32Bit-Version 3.65 (2048 KB) Popeye 4.61 (also)
FEN: rb2k3/2p2p1K/1B6/1RPP1PP1/B1Prbrp1/1Prp1p2/2p2P2/N7
Reprints: Probleemblad , p. 220-227, 12/2010
Input: Gerd Wilts, 2001-02-11
Last update: A.Buchanan, 2020-10-10 more...
4 - P1004002
Noam D. Elkies
R0094 StrateGems 17 01-03/2002
Richard Stanley gewidmet
P1004002
(14+15) C+
BP in 23,5
1. Sc3 d5 2. Sxd5 h6 3. Se3 Dd3 4. Tb1 Dh7 5. Sf5 a5 6. e3 a4 7. Dh5 a3 8. Ke2 axb2 9. a4 Ta6 10. a5 Tg6 11. a6 c5 12. a7 c4 13. a8=T c3 14. Ta6 cxd2 15. Tb6 d1=T 16. Ld2 Sf6 17. La5 Td8 18. c3 Sd7 19. Kd3 Dg8 20. Kd4 Th7 21. Lb5 Dh8 22. La4 Sg8 23. Kd5 f6 24. Ke6= patt
play all play one stop play next play all
James Malcom: Is this the record for the longest PG ending in stalemate? (2020-11-13)
A.Buchanan: There are no shorter ones in PDB without a promotion ("=" can mean promotion or draw). Coming at 41.5 by Guus Rol there is P1011937, ending in draw by 3Rep. (2020-11-13)
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comment
Keywords: Unique Proof Game, Non-standard material (Tt)
Genre: Retro
Computer test: Natch 3.1 (15 min.)
FEN: 2brkbnq/1p1np1pr/1R2Kprp/B4N1Q/B7/2P1P3/1p3PPP/1R4NR
Input: Gerd Wilts, 2002-04-05
Last update: A.Buchanan, 2020-11-13 more...
5 - P1299317
Ottó Titusz Bláthy
149e Fata Morgana 1922
P1299317
(4+15)
s#150*
James Malcom: How would one even begin to approach solving this, along with its compatriot P1299316? (2020-11-20)
comment
Keywords: Sea Snake, Non-standard material (l)
Genre: s#
FEN: 4k3/7K/7p/1p4p1/5ppr/6pb/n2B1prb/3N1Bbn
Input: Frank Müller, 2015-03-15
Last update: A.Buchanan, 2020-11-21 more...
6 - P1338394
Göran Wicklund
J.Lois-70 JT 2016-2017
2nd Honorable Mention
P1338394
(12+14) cooked
PG in 33.0
1. Sf3 a5 2. Sd4 a4 3. Sb3 axb3 4. a4 Ta5 5. Ta2 bxa2 6. h4 a1=S 7. h5 Sb3 8. h6 Sd4 9. hxg7 Sf5 10. gxh8=L Sh4 11. Le5 f5 12. Lh2 e5 13. g3 La3 14. Lg2 Se7 15. Lc6 dxc6 16. 0-0 Sd7 17. Kh1 Sf8 18. Lg1 Dd5+ 19. Kh2 Kd7 20. Kh3 Dh1+ 21. Lh2 e4 22. Tg1 Te5 23. Df1 c5 24. Dg2 Kc6 25. Df3 Kb6 26. Tg2 Dd1 27. Tg1 Ka5 28. Te1 b6 29. Lg1 La6 30. Kh2 Ld3 31. Kh1 c4 32. Lh2 c5 33. Kg1 Dxe1#
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Judge J. Lois: This problem presents the theme Lois between the wK1-WBh2(2) with a switchback of both pieces.
In addition, change of place between WKe1-wRh1 in move 31.
Henrik Juel: In the award this proof game is not labelled C+ (2017-08-30)
Michel Caillaud: reported as cooked in Winchloé :
1.a4 b5 2.Ta3 b4 3.h4 bxa3 4.h5 a2 5.h6 a1=S 6.hxg7 Sb3 7.gxh8=L Sd4 8.Le5 Sf5 9.Lh2 e5 10.g3 La3 11.Lg2 La6 12.Lc6 dxc6 13.Kf1 c5 14.Kg2 Kd7 15.Sh3 Kc6 16.Sf4 Kb6 17.Sd5+ Ka5 18.Sb6 axb6 19.Kh3 Dd5 20.Tg1 Dh1 21.Df1 e4 22.Dg2 Sd7 23.Df3 Te8 24.Tg2 Dd1 25.Tg1 Te5 26.Te1 Sf8 27.Lg1 Sge7 28.Lh2 Sh4 29.Lg1 f5… (2020-10-14)
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comment
Keywords: Unique Proof Game, Non-standard material, Lois Theme
Genre: Retro
FEN: 5n2/4n2p/1p6/k1p1rp2/P1p1p2n/b2b1QP1/1PPPPP1B/1NB1q1K1
Input: A.Buchanan, 2017-08-30
Last update: A.Buchanan, 2020-10-15 more...
7 - 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)
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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...
8 - P1380878
Gilbert S. Dobbs
155 The Problem 27/06/2014
P1380878
(3+4) C+
#2
1. Df7! droht 2. De2#
1. ... f3,Lf3 2. De6#
1. ... d3,Ke5 2. Ddxf4#
1. ... Kf3 2. Dfxf4#
play all play one stop play next play all
Henrik Juel: Two white queens (2020-10-13)
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comment
Keywords: Non-standard material, Flight giving and taking key
Genre: 2#
Computer test: Popeye 4.61
FEN: 8/K7/5Q2/8/3pkp2/8/3Q4/7b
Input: Rainer Staudte, 2020-10-13
Last update: Alfred Pfeiffer, 2020-10-14 more...
9 - P1380879
Gilbert S. Dobbs
154 The Problem 27/06/2014
dedicated to William E. Rudolph
P1380879
(3+3)
#3
1. De1!
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Henrik Juel: Ruined by duals after 1... Kd4,Kc2,f6 (2020-10-13)
comment
Keywords: Non-standard material
Genre: 3#
FEN: 4Q3/4Kp2/8/7n/7Q/3k4/8/8
Input: Rainer Staudte, 2020-10-13
Last update: Alfred Pfeiffer, 2020-10-14 more...
10 - P1380882
James Malcom
Andrew Buchanan

PDB Website 14/10/2020
nach Josef Cumpe
P1380882
(2+7)
Last two moves?
(-:
See P1234039, P1375777 and P1380852.
The joke here is that pawns may promote to *any* unit (friend or enemy; officer, king or pawns).
Henrik Juel: R: 1... 0-0-0+ 2.a7-a8=sT
not 2.e7-e8=sK, because then sTa8 would have moved, and castling not allowed (2020-10-14)
A.Buchanan: Exactly, Henrik. Also: sB on 7th rank could retract to 8th rank, so we need sT instead (2020-10-14)
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comment
Keywords: Last Moves? (2), Type C, Castling in the retro play, Non-standard material (tt), Joke, Joke promotion (t), Promotion in the retro play (t)
Genre: Retro
FEN: 2kr3K/1r1r1qrR/7p/8/8/8/8/8
Input: A.Buchanan, 2020-10-14
Last update: Alfred Pfeiffer, 2020-10-14 more...
11 - P1381190
Ulrich Auhagen
A Deutsche Schachzeitung 02/1986
P1381190
(4+1) C+
#2
1. Dg8! Ke5 2. Dd4#
1. ... Ke7 2. Ddd8#
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comment
Keywords: Non-standard material, Rex solus (s), just one species
Genre: 2#
Computer test: Popeye 4.61
FEN: 8/8/5k2/8/8/4K3/Q7/1Q1Q4
Input: Rainer Staudte, 2020-10-21
Last update: Alfred Pfeiffer, 2020-10-21 more...
12 - P1381377
Gerhard Josten
Tim Krabbé's Website AD 131
P1381377
(10+16) C+
#13
1. Kc4! cxd6 2. Sc3+ Sxc3 3. Dh1+ f3 4. Dxh4+ Tf4 5. Dhh7+ f5 6. Dxb7+ Dxb7 7. Dxb7+ d5+ 8. Dxd5+ Scxd5 9. Sxd5 Sxd5 10. Te3+ Sdxe3+ 11. Dxe3+ Sxe3+ 12. Txe3+ dxe3 13. d3#
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ONSTERFELIJKE WOESTHEID-https://timkr.home.xs4all.nl/admag/woest.htm
Anton Baumann: C+ Gustav 4.1d (2020-11-10)
comment
Keywords: Opferminimal, Non-standard material
Genre: n#
FEN: 1q4r1/1bp2pQ1/3Q4/1Kp1pr2/1n1pkp1p/RQ1RN3/nbnP4/QN6
Input: James Malcom, 2020-10-29
Last update: Olaf Jenkner, 2020-11-10 more...
13 - 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...
14 - P1381764
Daniele Gatti
Best Problems 89, p. 194, 1/2019
P1381764
(12+11)
#22
b) sLa3->b8: s#22
a) 1. Th8+! Kxh8 2. Txh3+ Kg8 3. Th8+ Kxh8 4. Txh2+ Kg8 5. Th8+ Kxh8 6. Th1+ Kg8 7. Th8+ Kxh8 8. Th1+ Kg8 9. Th8+ Kxh8 10. Th1+ Kg8 11. Th8+ Kxh8 12. Th1+ Kg8 13. Th8+ Kxh8 14. Th1+ Kg8 15. Th8+ Kxh8 16. Th1+ Kg8 17. Th8+ Kxh8 18. Dh1+ Kg8 19. Dh7+ Kf8 20. Dh8+ Ke7 21. Dxg7+ Kd6,Kd8 22. Dc7#

b) 1. Th8+! Kxh8 2. Txh3+ Kg8 3. Th8+ Kxh8 4. Txh2+ Kg8 5. Th8+ Kxh8 6. Th1+ Kg8 7. Th8+ Kxh8 8. Th1+ Kg8 9. Th8+ Kxh8 10. Th1+ Kg8 11. Th8+ Kxh8 12. Th1+ Kg8 13. Th8+ Kxh8 14. Th1+ Kg8 15. Th8+ Kxh8 16. Th1+ Kg8 17. Th8+ Kxh8 18. Dh1+ Kg8 19. Dh7+ Kf8 20. Dh8+ Ke7 21. Dxg7+ Kd6,Kd8 22. Dc7+ Lxc7#
play all play one stop play next play all
http://www.bestproblems.it/bppdf/BP2019(complete).pdf

"... details are everything ..."
Henrik Juel: Popeye 4.61 with 'opt thr 0' found no flaws in part a (2020-11-12)
Henrik Juel: ... and with 'opt thr 0 non 0 1' no flaws in part b (2020-11-12)
comment
Keywords: Task (Construction), Non-standard material, Bahnung, Räumung, Checking key
Genre: n#
FEN: q3r1k1/6p1/1K2p1P1/3rp3/7R/b4pRn/5R1p/QRRRRRR1
Input: James Malcom, 2020-11-12
Last update: Rainer Staudte, 2020-11-12 more...
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The problems of this query have been registered by the following contributors:

Gerd Wilts (4)
Frank Müller (1)
A.Buchanan (2)
James Malcom (3)
Rainer Staudte (4)