Die Schwalbe

23 problem(s) found in 3748 milliseconds (displaying 23 problem(s)). [COMMENTDATE>=20220810 AND NOT A='Staudte, Rainer' AND S='mpk-Blätter'] [download as LaTeX]

1 - P0000758
Gerd Rinder
1033 Die Schwalbe 21 06/1973
1. Preis
P0000758
(7+11)
Remis (AP)
Weiß ist patt. 1. cxb6ep ist nur zulässig, wenn Schwarz diese a posteriori durch die Rochade rechtfertigt. Weiß kann aber so spielen, daß Schwarz nicht rochieren kann, z.B. 1. ... Lxc7 2. bxc7
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Guus Rol: This is an incorrect interpretation of the AP-convention. Rules outrank goals in the definition of all GAMES. Therefore the legitimacy of a move cannot be restricted by the desire to achieve the goal (in this case: Remis). The proper way to view AP is that executing e.p. invalidates the legitimacy of all lines of future play that do not contain 0-0-0! In that sense black and white are forced to cooperate. In whatever freedom remains they can compete for the prize promised in the stipulation. By the way, this understanding of AP is not only more logical, it is also much more interesting as a playing field for AP-composition. (2005-09-21)
mri: citeWeiß kann aber so spielen, daß Schwarz nicht rochieren kann, z.B. 1. ... Lxc7 2. bxc7
/cite
How does white prevent black from castling after 1. cxb6 e.p. Ba7xb6+?
E.g. 2.Kxb6 a1=R 3.a7 Rxa7, or 2.Ka4 Bd8xc7 3.a7 Bb8. (2005-09-22)
VL: 1.c5xb6ep(??) a7xb6+ 2.Kxb6 a1R 3.Kb7 R1xa6 4.Rc8! (R6a7#?? illegal).
This study is correct under the generally accepted understanding of AP
a la' N.Petrovic'. Antiform (looking possibly somewhat strange):
Black's unsuccessful try. (2005-10-03)
Guus Rol: Generally accepted, true. Generally acceptable, false. Freedom of interpretation ceases for a concept once its polar concept (a priori validation) has been defined. "Goal induced AP" however, might be a passable stipulation for this type of problem. To keep this place from turning into a discussion forum I will discontinue comments on this issue. (2005-10-03)
paul: Author intention is: If black still can castle, his last move must have been b7-b5. However, to prove this, he has to castle (A Posteriori condition). So: 1.cxb6 e.p. axb6+ 2.Kxb6 a1R! (2...a1Q? 3.Kb7 Qxa6 mate obviously doesn`t prove b7-b5 as the last move) 3.Kb7 R1xa6 4.Rc8! and white has prevented black from castling. So black can`t prove the last move is b7-b5 and therefor is already stalemated in the initial position! (2011-07-12)
A.Buchanan: Isn't Guus' idea just AP-Prioritat? And even if it were "more logical" or "more interesting", it doesn't follow that other forms is AP are "incorrect" (2023-07-31)
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Keywords: En passant as key, Castling (sg), a posteriori (AP)
Genre: Retro, Studies
FEN: r2bk3/p1Rpp3/P1p2p2/KpP2P2/1P2p3/1P6/p7/8
Reprints: (4) Problem 161-164 11/1973
317 Europe Echecs 217 01/1977
(A) Die Schwalbe 80 04/1983
408 Eigenartige Schachprobleme 2010
M36 mpk-Blätter 12/2011
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-07-31 more...
2 - P0579877
Manfred Rittirsch
F1007v The Problemist 05/1988
Walter Wittstock gewidmet
1. Preis
P0579877
(0+0+7)
h#4 0.1...
b) nSe3 nach f8
a) 1. ... nSeg4 2. nBf5 nKg6+ 3. nKh7 nLd4 4. nBg5 nBfxg6ep#
b) 1. ... nDb8 2.nKf6+ nKe7 3.nBg5 nLh4 4.nBf5 nBgxf6ep#
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Anton Baumann: a) & b) C+ Alybadix (2023-07-12)
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Genre: Fairies
FEN: 8/5-P-P1/7-N/6-K1/8/4-N3/5-B2/1-Q6
Reprints: M13 mpk-Blätter 03/2011
Input: hpr, 2001-01-21
Last update: Frank Müller, 2011-03-12 more...
3 - P1011792
Gerd Wilts
12046 Die Schwalbe 203 10/2003
Michel Caillaud gewidmet
1. Preis
P1011792
(13+16) C+
BP in 23,5
1. b4 d6 2. Lb2 Kd7 3. Ld4 Ke6 4. Lb6 axb6 5. Sc3 Ta3 6. Se4 Th3 7. a4 Ke5 8. Ta3 Le6 9. Tf3 Sd7 10. Tf6 gxf6 11. a5 Lh6 12. a6 Le3 13. a7 Sh6 14. a8=T Te8 15. Ta1 Da8 16. g4 Da2 17. g5 Db1 18. Ta5+ bxa5 19. g6 Sb6 20. g7 Sa8 21. g8=T Lb6 22. Tg3 Sg8 23. Ta3 Lb3 24. Ta1
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Henrik Juel: C+ Stelvio 2.0, 19 seconds
No shorter solutions (2024-01-21)
Henrik Juel: Euclide 1.01 did not even find the solution in 10 minutes (2024-01-21)
Henrik Juel: ditto in some 6 hours, so Stelvio is the clear winner here (2024-01-21)
comment
Keywords: Unique Proof Game, Pronkin Theme (TT)
Genre: Retro
Computer test: Euclide 0.99
FEN: n3r1n1/1pp1pp1p/1b1p1p2/p3k3/1P2N3/1b5r/2PPPP1P/Rq1QKBNR
Reprints: feenschach 155 2004
(A) Die Schwalbe 233 10/2008
H68 FIDE Album 2001-2003 2011
mpk-Blätter 02/2012
Input: Gerd Wilts, 2003-10-19
Last update: Silvio Baier, 2012-04-10 more...
4 - P1086747
Frank Müller
Die Schwalbe 02/2005
Hemmo Axt 60 JT
4. Preis
P1086747
(4+4)
s#22
Probe 1. Dh5+? Dxh5+ 2. Kg8
1. Df2+! Kh3 2. Lg2+ Kh2 3. Dg3+ Kg1 4. Ld5+ Kf1 5. Df3+ Ke1 6. Tg1+ Kd2 7. Td1+ Kc2 8. De2+ Kc3 9. Dc4+ Kb2 10. Dxa2+ Kc3 11. Da3+ Kc2 12. Lb3+ Kc3 13. Lg8+ Kc2 14. Tc1+ Kd2 15. Dc3+ Ke2 16. Te1+ Kf2 17. De3+ Kg2 18. Te2+ Kf1,Kh1 19. Df3+ Kg1 20. Tg2+ Kh1 21. Tg7+ Kh2 22. Dh5+ Dxh5#
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Korrektur (sBh5 nach a2) in Die Schwalbe 12/2016
Henrik Juel: Popeye 4.61 with 'opt non 1 1 thr 0' found no flaws (2022-10-17)
comment
Keywords: Führung w Figur, Logik - Multiple Rückkehr, Checking key, Perpetual check
Genre: s#
FEN: 4q3/1B2p1RK/8/8/8/5Q2/p6k/8
Reprints: M33 mpk-Blätter 10/2011
F236 FIDE Album 2004-2006 2013
Input: Frank Müller, 2009-06-18
Last update: Gunter Jordan, 2022-10-17 more...
5 - P1110573
Gerd Rinder
7937 Die Schwalbe 138 12/1992
P1110573
(6+8) C+
ser-h#5 Madrasi
b) wBe5 nach e6
a) 1. Kxc6 2. Kd5 3. Tf2 4. D1a6 5. Kxe5 Sb6#
b) 1. Kxd4 2. Kd5 3. Lf2 4. D1a1 5. Kxe6 Sc3#
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Zweispänniger Serienzüger mit schöner Strategie. Wechsel der Paralyselinien zur Ermöglichung des tödlichen Doppelschachs. Einheitlich vorgeführt sieht das nicht schlecht aus (HPR). Wunderschöne Feenmatts (AE). Nach Novotny-Verstellung und Lähmungsaufhebungen auf f2 (RS). Schwarz leistet die Vorarbeit, damit der wS durch Schnittpunktbesetzung 2 Lähmungen gleichzeitig aufheben kann. Erfreulich originell (RJB). Wuchtig und trotzdem ökonomisch (WoW). Höchst originell (in der #-Stellung Doppelschach!) und harmonisch in allen Funktionselementen (MS). Zwei tolle, madrasitypische Echomatts mit Ent- und Wiederparalyse und den entsprechenden Madrasi-Schnittpunkten b6 und c3. Eine ganz excellente Aufgabe. Der Ortho-Experte als Fairy-Meister. Schade nur, daß er sich auf diesem Gebiet so selten zeigt (eb).
Anton Baumann: Informalturnier 1992: 3.Preis (PB 04/1995 S.41) (2023-01-05)
comment
Keywords: Madrasi, Nowotny, Seriesmover
Genre: Fairies
Computer test: Popeye Windows-32Bit v4.55 (1727 MB)
FEN: 7K/b1pr4/2R2Q2/3kP3/Np1Bp3/8/2r5/5q2
Reprints: I mpk-Blätter 07/2015
Input: HBae, 2010-07-15
Last update: Frank Müller, 2015-07-12 more...
6 - P1114049
Gerd Rinder
FIDE Olympia Turnier 26 Thessaloniki 1984
1. Preis
P1114049
(6+5)
#15
1. Se6+! Ke3 2. Sc7 Kf4 3. Kg2 Ke3 4. Ld3 Kf4 5. Kh3 Ke3 6. Sd5+ Kf2 7. Sc3 Ke3! 8. Kg3 Lb8+ 9. Kg2 Kf4 10. Lf5 Ke3 11. Kf1 Kf4 12. Kf2 La7+ 13. e3+ Lxe3+ 14. Kg2
1. ... Kg3 2. Sxg7 Kf4! 3. Sh5+ Ke3 4. Sf6 Kf4 5. Kg2 Ke3 6. Ld3 Kf4 7. Kh3 Ke3 8. Kg3 Lb8+ 9. Kg2 Kf4 10. Lf5 Ke3 11. Kf1 Kf4 12. Kf2 La7+ 13. e3+ Lxe3+ 14. Kg2
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Sally: °
Manöver mit minimalem Aufwand und zwei Varianten. (2018-08-29)
Anton Baumann: Mattduale wenn der sL im 14.Zug nicht von e3 wegzieht;
ansonsten C+ Gustav 4.2a (2022-08-19)
comment

Genre: n#
FEN: 5N2/b5p1/8/5B2/5kP1/pp3N2/4P3/5K2
Reprints: X Szachy 11/1985
2358 Problemista 210-212 10-12/1985
82 mpk-Blätter 12/2004
Die Schwalbe , p. 51, 02/2005
Input: Frank Müller, 2010-08-31
Last update: Marcin Banaszek, 2021-10-24 more...
7 - P1114208
Dieter Werner
idee & form 2002
Peter Jäger 80 JT
2. Preis
P1114208
(8+5)
#11
1. Le7+ Kc7 2. Tb4 (droht 3. Tb7#) Tgb8! 3. Ld6+ Kd8 4. Te4 (droht 5. Te8#) Tb2+ 5. Kh3 Th2+ 6. Kg4 Th8 7. Le7+ Kc7 8. Tb4 Thb8 9. Ld6+ Kd8 10. Te4 nebst 11. Te8#
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Die kritische Lenkung des sT kann durch eine vollständige antiperikritische Führung unter Schach wieder rückgängig gemacht werden. Danach ist diesselbe kritische Lenkung wegen Wegführung des wK erfolgreich.
Pawel Stawarz: This problem has missing black pawn at g6. Correct problem has been already added by Felber Volker, please check P1269789. (2015-04-26)
Anton Baumann: mit sBg6: C+ Gustav 4.2a (2023-12-11)
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Keywords: Pure Round Trip (t)
Genre: n#
FEN: r2k2r1/3B4/2PB4/2P5/4RP2/6P1/p5K1/6b1
Reprints: 96 mpk-Blätter 02/2005
C108 FIDE Album 2001-2003 2011
Input: Frank Müller, 2010-09-01
Last update: Frank Müller, 2011-12-04 more...
8 - P1114215
Rolf Trautner
v Deutsche Schachzeitung 1959
P1114215
(5+12)
#4
1. De2! droht 2. Tde8+ Kd7 3. Db5+ 2. Tfe8+ Kf7 3. Dh5+
1. ... Tcxe2+ 2. Kd5 Td2+ 3. Kc6
1. ... Tgxe2+ 2. Kf5 Tf2+ 3. Kg6
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Henrik Juel: many threats and some dualz in other variations, but surprising key (2023-02-25)
comment
Keywords: Provoked check, Sacrifice key (D)
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 3R1R2/2p1k1N1/3p1p2/2p1p1p1/4K3/4Q3/1pr3rp/4n3
Reprints: 103 mpk-Blätter 03/2005
Input: Frank Müller, 2010-09-01
Last update: Dieter Berlin, 2023-02-25 more...
9 - P1114528
Gerald Ettl
143v mpk-Blätter 09/2005
P1114528
(7+7)
#13
Korrektur in 11/2005.
1. Lf1 Le4 2. Lh3+ Lf5 3. g4 L bel 4. g5+ Lf5 5. Lf1 Le4 6. Lc4+ Ld5 7. Le2 Le4 8. Lg4+ Lf5 9. Ld1 Le4 10. Lb3+ Ld5 11. c4 L bel 12. c5+ Ld5 13. Sg7#
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Anton Baumann: C+ Gustav 4.2a (2023-03-28)
comment

Genre: n#
FEN: 4N1K1/3pN2p/2pBk1p1/b2b4/2B5/2P3P1/8/8
Input: Frank Müller, 2010-09-03
Last update: Frank Müller, 2010-09-03 more...
10 - P1198700
Michael Oestreicher
13541 Die Schwalbe 12/2007
P1198700
(8+11) C+
#6
1. Kxc3? (droht 2.Sc4#) c1=D#
1. Td5! (droht 2.Td3#) c1=S 2. Kxc3 (droht 3.Sc4#) Sa2+ 3. Kb2 (droht 4.Sc4#) cxd5 4. Sxd5+ Kd3 5. Lf5+ Kc4 6. Sb6#
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Anton Baumann: Informalturnier 2006/2007: 3. ehrende Erwähnung (2023-05-08)
comment
Keywords: Holst promotion
Genre: n#
Computer test: Popeye WINDOWS-32Bit V4.37 (37584 KB)
FEN: 8/1p6/nNp1Np2/5Rb1/P1K3Bp/2p1kP2/2p1p3/n3B3
Reprints: N3 mpk-Blätter 07/2011
Input: Frank Müller, 2011-07-02
Last update: Frank Müller, 2011-07-08 more...
11 - P1202124
Wolfgang Alexander Bruder
Rhein-Neckar-Zeitung 1997
P1202124
(6+6) C+
#9
1. Kh2! f5 2. Kh3 fxe4 3. Kh4 e3 4. dxe3+ dxe3 5. La3 d2 6. Le7 e4 7. Ld6+ e5 8. Le7 ... 9. Lg5#
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Genre: n#
Computer test: SCHRECKE: Gustav 4.2c
FEN: 8/8/4pp1N/4p3/3pNk2/3p4/3P2B1/2B3K1
Reprints: 208 mpk-Blätter 04/2006
Input: Frank Müller, 2011-09-09
Last update: Dieter Berlin, 2023-06-25 more...
12 - P1237753
Frank Müller
506 mpk-Blätter 04/2012
P1237753
(3+1)
h#12
Weißer Ultraschachzwang
1. Kc1 Lb2+ 2. Kd2 Lc1+ 3. Ke1 Ld2+ 4. Kf2 Le3+ 5. Kg3 Lf4+ 6. Kh4 Lg3+ 7. Kg5 Lf4+ 8. Kf6 g5+ 9. Kf7 g6+ 10. Kf8 g7+ 11. Kf7 g8=D+ 12. Kf6 Lg5#
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SCHRECKE: C+, popeye 4.89 (2024-01-18)
comment
Keywords: Ideal mate, Ultraschachzwang
Genre: h#, Fairies
FEN: 8/8/8/8/4K1P1/8/8/Bk6
Input: Frank Müller, 2012-05-01
Last update: A.Buchanan, 2024-01-18 more...
13 - P1240584
Gerald Ettl
518 mpk-Blätter 05/2012
Alan Mackenzie gewidmet
P1240584
(11+11)
#10
1. PAe3 (droht 2. VAxf4#) PAg4 2. PAd3 (droht 3. VAf4#) PAf4 3. VAc3 (droht 4. PAxb3#) VAa2 4. VAb2 (droht 5. PAb3#) VAb3 5. VAec3 VAa2 6. VAd2 VAb3 7. PAe3 PAg4 8. PAe1 PAf4 9. VAbc1 (droht 10. VAxf4#) PAg4 VAf4#
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Anton Baumann: C+ Alybadix (2023-05-09)
comment

Pieces: tl = Pao (PA), ll = Vao (VA)
Genre: Fairies, n#
FEN: 1k5b/1Pp5/K1p2p2/2p2P2/P1PpP*3r2/1*3b*3R2pP1/2P*3B4/4*3Br2
Input: Frank Müller, 2012-06-03
Last update: Mu-Tsun Tsai, 2012-07-05 more...
14 - P1265329
George P. Sphicas
579 mpk-Blätter 03/2013
P1265329
(4+2) C+
ser-s#21
Circe
1. d3 2. e4 3. e5 4. e6 5. e7 6. e8=T 7. Te3 8. d4 9. d5 10. d6 11. d7 12. d8=L 13. Lh4 14. Txa3[+sTh8] 15. Tg3 16. a4 17. a5 18. a6 19. a7 20. a8=T 21. Ta1+ Txh4[+wLc1]#
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Erstmals 3 Exzelsiors mit nur 6 Steinen !
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Keywords: konsekutive Umwandlungen 3 (TLT), Circe, Excelsior (3x), Seriesmover, Minimal, Miniature
Genre: Fairies
FEN: 8/8/8/8/8/r6K/P2PP3/7k
Input: Frank Müller, 2013-03-24
Last update: Arnold Beine, 2022-09-14 more...
15 - P1270980
Gerald Ettl
598 mpk-Blätter 05/2013
Dem mpk zum 50. Jahrestag gewidmet
P1270980
(8+6)
#9
1. Sc3 b5! 2. Sd2 Kd4 3. Sdb1 Ke3 4. Sa3 Kd4 5. Saxb5+ Ke3 6. Sc7 Kd4 7. S7d5 exd5 8. Kd2 e6 9. e3#
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Anton Baumann: C+ Gustav 4.2a (2023-05-12)
comment

Genre: n#
FEN: 8/1p2p3/4p3/4Pp2/1Pp2P2/4kNP1/4P3/1N2K3
Input: Frank Müller, 2013-05-26
Last update: Frank Müller, 2013-05-26 more...
16 - P1281070
Rolf Kohring
634 mpk-Blätter 11/2013
P1281070
(4+2)
ser-h#11
Alphabetschach
Platzwechselcirce
b) wLc5 nach e5
1. Sc5[+wLd3] 2. Sa4 3. Sc3 4. Sxd1[+wTc3] 5. Sxf2[+wBd1] 6. Kd4 7. Kxc3[+wTd4] 8. Kd2 9. Ke3 10. Kf3 11. Sxd1[+wBf2] Le2#
1. Sxf2[+wBd3] 2. Ke6 3. Kf7 4. Sg4 5. Kg8 6. Sxe5[+wLg4] 7. Sxd3[+wBe5] 8. Sf4 9. Sg6 10. Sxe5[+wBg6] 11. Sxg4[+wLe5] Td8#
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SCHRECKE: a)+b): C+, popeye 4.87 (2022-10-23)
comment
Keywords: Alphabetic Chess, Seriesmover, Interchange Circe
Genre: Fairies
FEN: 8/8/8/2Bk4/8/3n4/5P2/3R2K1
Input: Frank Müller, 2013-12-12
Last update: Arnold Beine, 2022-10-23 more...
17 - P1309515
Gunter Jordan
683 mpk-Blätter 09/2015
P1309515
(3+1) C+
ser-h=15
Sentinelles
1. Ka7 2. Kb8(+sBa7) 3. a5 4. a4 5. a3 6. a2 7. a1=L 8. Lxd4 9. Lb6(+sBd4) 10. d3 11. d2 12. d1=T 13. Ta1 14. Ta8 15. La7(+sBb6) Kd7(+wBc6)=
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Keywords: Sentinels, Seriesmover, Kindergarten Problem, Miniature
Genre: Fairies
Computer test: Jacobi
FEN: 1k6/8/2K5/1P6/3P4/8/8/8
Input: Frank Müller, 2015-09-13
Last update: Arnold Beine, 2022-09-11 more...
18 - P1343332
Theodor Steudel
36 mpk-Blätter 06/2004
P1343332
(2+2) C+
s=4*
Circe
Längstzüger
wTR,sTR=Turm/Läufer-Jäger
* 1. ... TLa8-h1=
1. TLh7-e4! TLa8-d5 2. TLe4-g2 TLd5-a2 3. TLg2-h1 TLa2-a8 4. TLh1-h7 TLa8-h1=
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Keywords: Circe, Maximummer
Pieces: tr = Rook/Bishop hunter (TL)
Genre: Fairies
Computer test: %Popeye FreeBSD-4.3-RELEASE-32Bit-Version 3.81
C+ Alybadix 2023-03-28
FEN: *1r6K/5k1*1R/8/8/8/8/8/8
Input: Erich Bartel, 2017-11-18
Last update: A.Buchanan, 2024-02-24 more...
19 - P1403604
Gerald Ettl
1064 mpk-Blätter 144 04/2022
Kay Soltsien zum 85. Geburtstag gewidmet
P1403604
(7+8)
#4
1. f4! Lxf4 2. Lxf4 e5 3. Kg5 exf4 4. e5#
1. ... Le3 2. Ld4 e5 3. Lxe3 exf4 4. e5#
1. ... Ld2 2. Lxc3 e5 3. Lxd2 exf4 4. e5#
1. ... La3 2. Ld6 e5 3. Lxa3 exf4 4. e5#
1. ... Lb2 2. Lxc3 e5 3. Lxb2 exf4 4. e5#
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SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-08-10)
comment
Keywords: Grab
Genre: n#
FEN: 6br/2p2p1k/2P1pP2/4B2K/4P3/2p2P2/2B5/2b5
Input: Rainer Staudte, 2022-08-10
Last update: Rainer Staudte, 2022-08-10 more...
20 - P1404649
Rolf Wiehagen
1082 mpk-Blätter 145 05/2022
P1404649
(4+9)
h#5
0.1.1...
1. ... Le5 2. Tc7 Ld5 3. Tb7 axb7 4. Kxe5 b8=D 5. Kxd5 Dxb5#
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SCHRECKE: C+, Gustav 4.2b, Brute Force (2022-09-26)
comment
Keywords: Entblockung, Drag-in sacrifice (2-fach), Model mate, Promotion
Genre: h#
FEN: 7B/p7/P2pp3/1p3k2/2rpp3/8/B3r3/1K6
Input: Gunter Jordan, 2022-09-25
Last update: Gunter Jordan, 2022-09-26 more...
21 - P1405701
Rolf Wiehagen
1113 mpk-Blätter 147 10/2022
Hemmo Axt zum 80. Geburtstag gewidmet
P1405701
(4+15) C+
h#3
0.2.1...
1) 1. ... Tdd2 2. Txb2 Txb2 3. Lc7 (Lb6?) Txb8#
2) 1. ... Tbd2 2. Txd4+ Txd4 3. Lc8 (Le8?) Txd8#
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"wTb2/wTd4 können auf b8/d8 nicht selbst mattsetzen; erst ihr Ersetzen durch den jeweils anderen wT auf ihren Diagramm-Feldern ermöglicht diese Matts. Grund für diese Paradoxie: Das Opfer von sTb5/sTd5 ist der einzige Weg, diese Matt-Verhinderer auszuschalten." [Autor]
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Keywords: discovered checkmate, Batteriematt diagonal, double-check mate, Corner mate, Exchange of roles (T-T, t-t), Line opening, Model mate, Zilahi
Genre: h#
FEN: 1n1b3k/3bp2q/2p4p/prpr1p2/2KR4/6p1/1R2p3/B7
Input: Gunter Jordan, 2022-11-07
Last update: Gunter Jordan, 2022-11-13 more...
22 - P1414047
Robert Sharp
1200 mpk-Blätter 156 12/2023
P1414047
(9+6) C+
h#6
1. a1=T e4 2. Ta2 e5 3. Ta1 exf6 4. Ta2 f7 5. Ta1 f8=D 6. Ta2 Dxf5#
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Yuri Bilokin: you can see 1...e4 2.fxe4 Bc1 3.Ka1 Kc2 4.e3 Bb2#
1...e4 2.fxe4 Bc1 3.Ka1 Kc2 4.f5 Bb2#
1...Bc1 2.Ka1 e4 3.fxe4 Kc2 4.e3 Bb2#
1...Bc1 2.Ka1 e4 3.fxe4 Kc2 4.f5 Bb2# (2023-12-20)
comment
Keywords: Pendulum (b/t), under-promotion (t), Promotion (D), konsekutive Umwandlungen 2 (tD), under-promotion key, Rückkehr nach Umwandlung
Genre: h#
Computer test: C+ Popeye 4.89
FEN: 8/8/5p2/p1p2p2/P1P2P2/PKP1P3/pB2P3/1k6
Input: Achim Schöneberg, 2023-12-12
Last update: Gunter Jordan, 2023-12-13 more...
23 - P1414507
Udo Degener
Mirko Degenkolbe
Rolf Wiehagen

1208 mpk-Blätter 157 01/2024
Inge Groth gewidmet
P1414507
(6+6)
h#2
b) sKd5->e5
a) 1. Sf3 Lxf6 2. Sxc5 Td4#
b) 1. Sc3 Lxc6 2. Sxf5 Te4#
play all play one stop play next play all
(MDxxxx)
Henrik Juel: C+ Popeye 4.61 also (2024-01-15)
comment
Keywords: Model mate, Twin, Line opening, Unpinning, Pinning, Selfblock, pin-mate, Exchange of roles (L-L s-s)
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 5K2/8/2p2p2/2Pk1P2/1R1nn3/1p6/8/B6B
Input: Felber, Volker, 2024-01-15
Last update: Gunter Jordan, 2024-03-10 more...
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