Chess Problem Database Server

27 problem(s) found in 4497 milliseconds (displaying 27 problem(s)). [COMMENTDATE>=20220810 AND NOT A='Beuthner, Richard' AND K='Tempospiel'] [download as LaTeX]

1 - P0003786
Imre Sztankovszky
2916 FEENSCHACH 01-02/1956

(7+3) C+
h#2*

1. ... e5 2. g4 Le4#
1. Lxf4 e5 2. Lh2 Le4#
play all

A.Buchanan: Setplay doesn't care whether the position is legal. (2023-12-06)
A.Buchanan: So is this a retro problem? I think not. (2023-12-06)
comment

Keywords: No legal last move for Black (setplay doesn't care), Tempo Move
Genre: h#
Computer test: HC+ Popeye v4.87 & trivial retro-logic
FEN: 8/8/5PBP/6pP/4PP2/8/5K1b/7k
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-12-06 more...

2 - P0501132
Unto Heinonen
1487 Probleemblad 01/1989
2. ehrende Erwähnung

(2+11) C+
h#4
2.1...

1) 1. Kc3+ Sc4 2. Sb4 Sxe3 3. Kb3 Sf1 4. Tc3 Sd2#
2) 1. Tc3 Sf1 2. Kc4 Sxe3+ 3. Kb3+ Sc4 4. Sb4 Sd2#
play all

Yuri Bilokin: you can see *) 1...Sf1 2.Rc3 Sxe3 3.Kb3+ Sc4 4.Sb4 Sd2# (2022-12-10)
comment

Keywords: Pure Round Trip (S,S), Tempo Move (k,k)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/2n5/2r5/rk4K1/p3p3/pppNp3/3b4
Reprints: E226 FIDE Album 1989-1991 1997
Input: Gerd Wilts, 1996-06-06
Last update: Marcin Banaszek, 2018-02-13 more...

3 - P0501209
Hilmar Ebert
Hans Gruber
Denis Blondel
12173v British Chess Magazine 1985
1. ehrende Erwähnung

(2+13) C+
h#4

1. Tc4 Txa2 2. Tb4 Txb2 3. Ta2 Txb1 4. Ta1 Txa1#
play all

Yuri Bilokin: you can see
1...Rxb1 2.a1=Q Rxa1 3.b1=Q+ Rxb1 4.Ra1 Rxa1#
1...Rxb1 2.a1=Q Rxa1 3.b1=R Rxb1 4.Ra1 Rxa1#
1...Rxb1 2.a1=Q Rxa1 3.b1=B+ Rxb1 4.Ra1 Rxa1#
1...Rxb1 2.a1=Q Rxa1 3.b1=S Rxb1 4.Ra1 Rxa1# (2023-05-08)
more ...
comment

Keywords: Pure Round Trip (T), Tempo Move (ttt), Switchback (t), Minimal (T)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: b7/1n6/8/pp2p3/kr1pK3/rp6/pp6/Rn6
Reprints: 12173v British Chess Magazine 01/1986
Input: Gerd Wilts, 1996-06-06
Last update: A.Buchanan, 2017-03-20 more...

4 - P0506144
Felix Alexander Sonnenfeld
Ricardo de Mattos Vieira
1895 diagrammes 85 04-06/1988

(4+5) C+
h#2
3.1...

1) 1. Sb5 Sd5+ 2. Kf5 Se7#
2) 1. Sc6 Sc4+ 2. Kf5 Sd6#
3) 1. Sc8 Sc2+ 2. Kf5 Sd4#
play all

Yuri Bilokin: you can see 1...Sc2+ 2.Kf5 Sd4#
1...Sc4+ 2.Kf5 Sd6#
1...Sd5+ 2.Kf5 Se7# (2023-06-26)
comment

Keywords: Dual avoidance, Tempo Move
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/n7/4p1p1/4P3/4kb1K/4N3/8/4R3
Input: Markus Manhart, 1997-01-06
Last update: hpr, 1999-08-29 more...

5 - P0506581
Eduard A. Enkin
Mykola Nagnibida
207v Mat (Belgrade) 10/1972

(9+10) cooked
h#2
b) wLb4

a) 1. Tb8 Th1 2. Tc8 Dh2#
b) 1. Tc8 Lb1 2. Tb8 Dc2#

NL:
a) 1. Kd6 Txf6+ 2. Ke7 Dxg7#
play all

Kees: Possible fix:Dd8-d7 Ld7-d8 +sSh8 -sLc1 -wBb2 h#1,5 ( a) 1. ...Th1 2.Tc8 Dh2# b) 1. ... Lb1 2. Tb8 2. Dc2#) (2023-06-05)
Gerald Ettl: Kees, das ist eine schlechte Verbesserung. Denn das Tempoverlustmanoever des sT ist hier eine wichtige Absicht des Autors, die beibehalten werden soll. (2023-06-05)
Ladislav Packa: White Rf7 Pg7 Qh7 Bg6 Pg5 Rh5 Pg4 Pb3 Pg2 Kg1 (10)
Black Ra8 Bd8 Bg8 Pb7 Kc7 Qd7 Pb6 Pc6 Pb4 (9)
b) bPc6-d6
C+ by Popeye v4.63 The author's idea is completely preserved. (2023-06-05)
A.Buchanan: I like Ladislav's fix a lot. I humbly suggest r2b2b1/1pkq1RPQ/1p1p2B1/6PR/3p4/8/4K3/6N1 saving two units. Some might say wSg1 is too passive for a White officer, but the way two units (bP & wK) block three rows is sufficiently amusing to offset this, imho. (2023-06-06)
A.Buchanan: The authors fixed it very well with P0523513 so any later fix is pointless. (2023-06-13)
more ...
comment

Keywords: Bahnung, Tempo Move (t t)
Genre: h#
FEN: r2q4/1pkb1RpQ/1p3nB1/6KR/1N4P1/5P2/1P1p4/2b5
Input: hpr, 1997-01-22
Last update: A.Buchanan, 2023-06-13 more...

6 - P0522777
Thomas R. Dawson
103v Deutsche Märchenschachzeitung 12/1931

(6+7) cooked
h#3

1. f1=L Sa2 2. Lxe2+ Kxe2 3. d1=T Sxc3#
play all

Cook: NL 1. Td3 Sf4 2. Ld4 Sb3 3. Te3 Sxd2#

Doppelveröffentlichung
Adrian Storisteanu: Possible fix: -bPe5, +wPf4 (7+6). (2015-11-27)
Yuri Bilokin: possibly wNc1-a7 8/N7/8/4p3/p2rk1P1/P1b3P1/3pNp2/3K4 (6+7) (2022-12-19)
HBae: Bei dem Korrekturvorschlag von Adrian wäre auch -wPa3 +bPa3 möglich, C+ Popeye v4.37 (2022-12-20)
Yuri Bilokin: Yes, it's better
There is no need to strain yourself by dragging the white knight to the a7 square :) (2022-12-20)
comment

Keywords: Sacrifice of white pieces, Tempo Move (b(t))
Genre: h#
FEN: 8/8/8/4p3/p2rk1P1/P1b3P1/3pNp2/2NK4
Reprints: 3605 Falkirk Herald 09/05/1934
Input: Markus Manhart, 1998-02-10
Last update: Alfred Pfeiffer, 2015-11-30 more...

7 - P0522836
Marjan Kovacevic
12171 British Chess Magazine 01/1986
1. Preis

(4+6) C+
h#2

1. Dh8 0-0 2. Da1 Lxf7#
play all

Eric Huber: Anticipated by 'P0534152' Erkki Heinonen, 3. Makuc-Moder-Gedenkturnier 1971-1973, 4. ehrende Erwähnung. (2008-10-01)
Viktoras Paliulionis: This problem shows paradoxical idea - two mutually exclusive tempo moves (B1 & B2). P0534152 has only one tempo move. (2023-10-09)
more ...
comment

Keywords: Castling (wk), Tempo Move (dd)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 6B1/5n1n/8/8/N7/b7/kq5r/4K2R
Input: Markus Manhart, 1998-02-10
Last update: Gerd Wilts, 2008-10-02 more...

8 - P0522922
Albert Zickermann
1758 FEENSCHACH 05-06/1953

(5+4) C+
h#6

1. Kd2 e4+ 2. Kd1 e5 3. Ke1 e6 4. Kd1 e7 5. Ke1 e8=D+ 6. Kd1 De2#
play all

Yuri Bilokin: you can see 1...e4 2.Kd1 e5 3.Ke1 e6 4.Kd1 e7 5.Ke1 e8=Q+ 6.Kd1 Qe2# (2023-01-14)
comment

Keywords: Excelsior white (auto key), Round Trip, Pure Round Trip (k), Tempo Move (kkk)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/8/8/8/p1p5/PpP1PR2/1K2k3
Input: Markus Manhart, 1998-02-10
Last update: hpr, 2000-10-11 more...

9 - P0523513
Eduard A. Enkin
Mykola Nagnibida
1529 Feladvanykedvelök Lapja 11-12/1974

(9+8) C+
h#2
b) sBf3 nach e3

a) 1. Thg1 Ta8 2. Tgf1 Da7#
b) 1. Thf1 Lg8 2. Tg1 Df7#
play all

Frank Richter: Correction of P0506581 (2023-06-13)
comment

Keywords: Bahnung, Tempo Move (t t)
Genre: h#
Computer test: (Popeye C-Version 3.47 (1024 KB))
FEN: 2K5/3p4/3P4/1P6/RP6/1B3pp1/QPR1qkp1/4r2r
Input: Markus Manhart, 1998-02-10
Last update: hpr, 1999-11-02 more...

10 - P0523639
Yosif Krikheli
50 Schachmaty 06/1967
4. ehrende Erwähnung

(5+4) C+
h#2
2.1...

1) 1. cxb1=T+ Lc1 2. Dh8 Ta7#
2) 1. cxb1=L Tc2 2. Da8 Lg7#
play all

Yuri Bilokin: you can see *) 1...Bc1 2.cxb1=R Ra7# (2022-12-15)
comment

Keywords: Sacrifice of white pieces, Tempo Move (d d)
Genre: h#
Computer test: (Popeye C-Version 3.47 (1024 KB))
FEN: 8/2R5/7B/8/8/1P6/2p5/kN3Knq
Reprints: 528 FIDE Album 1965-1967
Input: Markus Manhart, 1998-02-10
Last update: Marcin Banaszek, 2016-01-21 more...

11 - P0524038
Yosi Retter
4220 Probleemblad 05-06/1961
1. Preis
107. Thematurnier

(6+14) C+
h#2
3.1...

1) 1. Sa6 Sd1 2. c3 Sxe5#
2) 1. Sc6 Sa4 2. Dc3 Sc5#
3) 1. Sd7 Sxa2 2. Tc3 Sb4#
play all

Yuri Bilokin: you can see 1...Sd1 2.c3 Sxe5#
1...Sxa2 2.Rc3 Sb4#
1...Sa4 2.Qc3 Sc5# (2022-09-11)
comment

Keywords: Tempo Move (s s s)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
FEN: 1n6/8/8/3PpK2/2p1P1N1/ppNkP3/pqrpr3/nbb5
Reprints: 528 FIDE Album 1959-1961 1966
(11) idee & form 58, p. 1653, 04/1998
Input: Markus Manhart, 1998-02-10
Last update: Felber, Volker, 2022-09-06 more...

12 - P1026548
Klaus Wenda
Die Schwalbe 1964
2. ehrende Erwähnung

(11+3) C+
#3

1. Sce4? Txe4! 1. Sge4? Lxe4!

1. a3! La8 2. Sce4 Txe4 3. Df3# 2. ... Lxe4 3. Se6#
1. ... Te8 2. Sge4 Txe4 3. Sd5# 2. ... Lxe4 3. Se2#
play all

more ...
comment

Keywords: Brian Stephenson Collection (11429), Intersection Theme, Knight sacrifice, Bishop sacrifice, Tempo Move
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/8/P7/1P4N1/K2P1kPP/2N4Q/P2P4/4r2b
Reprints: 276 Problem-Palette , p. 95, 1970
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-08-23 more...

13 - P1136880
Poul Rasch Nielsen
Skakbladet 02/1951

(4+1) C+
#7

1. e3 Kb6 2. e4 Ka7,Kc6 3. e5 Kb6 4. e6 Ka7 5. e7 Kb6 6. e8=D Ka7 7. De3#
4. ... Kc6 5. e7 Kb6 6. e8=D Ka7 7. De3#
5. ... Kd6 6. e8=T Kc6 7. Te6#
play all

BUa2 EXD EXT TEB mm
vf: a1<>h1, Pierre Tourangeau, 1997, Apprenti Sorcier
vf: a1<>h1, Paul Rasch Nielsen, 1997, Skakbladet
Henrik Juel: Poul Rasch Nielsen died in 1965, so the 1997 publication must be a version from 1951.
His mother may have called him Anker, but he never used that first name himself; in fact, his author name was P. Rasch Nielsen. Very nice problem, by the way
A.Buchanan: (1) left-right reprint deleted, simply listed in Reprints here
(2) Henrik's comment copied across
(3) "Anker" removed from author record
(4) Separately, duplicate author record discovered & deleted
(5) 33 problems credited to the duplicate re-assigned to the original
Yes it's a very nice tanagra, with festina lente, accurate timing (to cover d6) and precise promotions to D & T. (2024-02-03)
Henrik Juel: Thanks for your clean-up operations, Andrew, here and elsewhere in the PDB
It is a Herculean task, but every bit helps (2024-02-03)
comment

Keywords: Miniature Collection (0074182), Excelsior (DT), Rex solus (s), Miniature, Tempo Move, under-promotion (T)
Genre: n#
Computer test: %C+ PY 3.44 am 17.9.1997
FEN: 2K5/k1N5/8/8/1P6/8/4P3/8
Reprints: Skakbladet 1997
Input: Felber, Volker, 2010-09-11
Last update: A.Buchanan, 2024-02-03 more...

14 - P1154852
Fritz Karge
712 Neue Osnabrücker Zeitung 05/12/1992

(4+3) C+
#4

1. Sb5! b6 2. Sc3 b5 3. Sd1 b4 4. Sf2#
play all

D14a m
more ...
comment

Keywords: Miniature Collection (0079937), Miniature, Stalemate avoidance, Tempo Move
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/1p6/8/5p2/3N1B2/1P6/8/5K1k
Reprints: 178 Problemschach-Jahrbuch 1992 D , p. 86, 1992
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2022-11-02 more...

15 - P1164651
Werner Speckmann
511 Die Schwalbe 18, p. 265, 12/1960
Kurt Richter gewidmet
zum 60. Geburtstag
1. ehrende Erwähnung

(4+2) C+
#3

1. Dc8! droht 2. Sf3#
1. ... Lxg5 2. Df5 Ld8 3. Dh5#
1. ... Kxg5 2. Df5+ Kh4 3. Dh5#
play all

H28 D13S TED
more ...
comment

Keywords: Miniature Collection (0058710), Minimal, Miniature, Flight giving sacrifice key, Knight sacrifice, Preplan, Tempo Move
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/8/7b/2Q3N1/6Pk/8/6K1/8
Reprints: 86 Das Schachproblem , p. 35, 1981
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-01-03 more...

16 - P1262981
Ralf Krätschmer
333a Augsburger Allgemeine 10/06/1995

(6+5) C+
#5

1. Lf5! f6 2. Le4 f5 3. Lc2 f4 4. exf4 Kd4 5. De5#
play all

more ...
comment

Keywords: Tempo Move
Genre: n#
Computer test: SCHRECKE: Gustav 4.2c
FEN: 8/5p1B/8/8/2p5/P1k1P3/Pp1r4/1K2Q3
Reprints: 213 Problemschach-Jahrbuch 1995 D , p. 94, 1996
Input: Felber, Volker, 2013-02-22
Last update: Dieter Berlin, 2023-07-13 more...

17 - P1268508
Michael Herzberg
478 idee & form , p. 1065, 10/1993

(9+11)
#9

1. d4+? Ke4 2. ?
1. Lg2! Da7 2. Le4 Dd7 3. Lf3 Da7 4. Lg4 Dd7 5. d4+ Ke4 6. Le2 f4 7. Dg2+ Kf5 8. Ld3+ Kxf6 9. Dg6#
play all

Anton Baumann: C+ Gustav 4.2a (2023-04-22)
comment

Keywords: Employment steering, Tempo Move, Pendulum
Genre: n#
FEN: rrn5/3qb3/3p1P2/3PkpQ1/p1P4P/2PPp2B/1p6/1K6
Input: Felber, Volker, 2013-04-26
Last update: Felber, Volker, 2013-04-26 more...

18 - P1298613
Arno Tüngler
König & Turm 2008
1. Lob

(6+6) C+
#5

1. Tfh2! Kf8 2. 0-0+ Kg8 3. Lxe6+ Txe6 4. Th8+ Kxh8 5. Tf8#
2. ... Ke7 3. Tf7+ Kd8 4. c7+ Kc8 5. La6#
play all

Erik Zierke in "Weniger bekannte Stücke": Rochade in Verbindung mit Wechseltürmen als Tempomanöver – das habe ich zuvor noch nie gesehen. Und auch aus Lösersicht ist die Sache sehr ansprechend, denn der Schlüssel gibt
dem schwarzen König große Bewegungsfreiheit.
more ...
comment

Keywords: Castling, Wechseltürme, Tempo Move
Genre: n#
Computer test: SCHRECKE: Gustav 4.2e
FEN: 4r1k1/6p1/2Ppp1P1/8/2B5/2p5/5R2/4K2R
Reprints: My problems [Arno Tüngler] , p. 238, 06/2009
Weniger bekannte Stücke 166, p. 128, 2011
König & Turm 33, p. 97, 12/2011
G Die Schwalbe 270, p. 678, 12/2014
Input: Felber, Volker, 2015-03-01
Last update: Arno Tüngler, 2024-01-05 more...

19 - P1377955
Torsten Linss
SuperProblem (Website) 16/07/2020
4. Preis (Miniaturen)
242. SuperProblem-Thematurnier 2020

(2+5) C+
h#7.5

1. ... Lc7! 2. Ta8 Ld8 3. Kd5 Ke8 4. Kc6 Kf7! 5. Kb7 Ke8 6. Kb8 Kd7 7. Sb7 La5! 8. Da7 Lc7#
play all

Yuri Bilokin: you can see 1.Ra8 Bd8 2.Kd5 Ke8 3.Kc6 Kf7 4.Kb7 Ke8 5.Kb8 Kd7 6.Sb7 Ba5 7.Qa7 Bc7# (2024-04-03)
comment

Keywords: Tempo Move (K), Tempo Move (L), Aristocrat
Genre: h#
FEN: 7r/3K4/1B4r1/n1q5/4k3/8/8/8
Input: TLi, 2020-07-18
Last update: Alfred Pfeiffer, 2020-07-23 more...

20 - P1405456
Kivanc Cefle
Gaudium
2304 Gaudium 255 14/03/2022

(5+5)
=21
Doppellängstzüger

1. Kd4 Tf1 2. Kc3 Tf8 3. Kb4 Tf1 4. Kxa3 Tf8 5. Kb4 Tf1 6. a4 Tf8 7. Ka5 Tf1 8. Kb6 Tf8 9. Kc7 Tf1 10. Kd8 Tf8+ 11. Kxe7 Tf1 12. Kd6 Tf8 13. Ke5 Tf1 14. Kd4 Tf8 15. Kxe3 Tf1 16. Kd4 Tf8 17. e4 Tf1 18. Ke5 Tf8 19. Kd6 Tf1 20. Ke7 Tf8 21. Kxf8=
play all

Henrik Juel: C+ Popeye 4.61 (2022-10-31)
comment

Keywords: Corner mate (-patt), Königswanderung, Maximummer (Doppel-), Miniature, Minimal, Model stalemate, Switchback (kt), Rücknahme Schlüsselzug, Round Trip (K-13), Tempo Move
Genre: Fairies
FEN: 5r1k/4p3/6P1/2P1K3/8/p3p3/P3P3/8
Input: Gunter Jordan, 2022-10-31
Last update: Gunter Jordan, 2022-10-31 more...

21 - P1406448
Hermann Weissauer
diagrammes 1988
Jean Zeller gewidmet

(7+7) C+
#7*

* 1. ... Kb4 2. Te1 Ka5 3. Ta1+ Kb4 4. Tb1 Ka5 5. b4#

1. Lb3! Kb4 2. Ld1 Ka5 3. Lc2 Kb4 4. Te1 Ka5 5. Ta1+ Kb4 6. Tb1 Ka5 7. b4#
play all

more ...
comment

Keywords: ambush, Pawn mate, Tempo Move
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/1p6/bp4p1/kp2RpP1/3P1P2/3K4/1PB5/8
Reprints: M52 Knobeln Sie auch gern? [Pachl] , p. 174, 2009
Input: Dieter Berlin, 2022-12-04
Last update: Dieter Berlin, 2022-12-04 more...

22 - P1406679
Hermann Weissauer
Mannheimer Morgen 1978

(4+7)
#4

1. Thg5! Tg4 2. Tgf5 Th4 3. Th5 Txh5 4. Txh5#
play all

SCHRECKE: C+, Gustav 4.2b, Brute Force (2022-12-13)
comment

Keywords: Zugzwang-Goal, Tempo Move
Genre: n#
FEN: 8/3p4/3p4/3R3R/5p1r/5Ppk/6p1/6K1
Reprints: M25 Knobeln Sie auch gern? [Pachl] , p. 162, 2009
Input: Dieter Berlin, 2022-12-12
Last update: Dieter Berlin, 2022-12-12 more...

23 - P1407480
Christer Jonsson
2364 Gaudium 31/07/2022 31/07/2022
besondere ehrende Erwähnung
Abt. h#2,5-3,5
PR Manfred Rittirsch

(3+2) C+
h#3
3.1...

1) 1. Kc4 Te3 2. Kd4 Kb5 3. Sd5 Sf5#
2) 1. Kd6 Th8 2. Kd7 Sg8 3. Kc8 Sxf6#
3) 1. Sd7+ Kb7 2. Kc5 Te5+ 3. Kd6 Sf7#
play all

Yuri Bilokin: you can see 1...Re3 2.Kd4 Kb5 3.Sd5 Sf5#
1...Kb5 2.Kd4 Re3 3.Sd5 Sf5#
1...Re4 2.Se8 Sg4 3.Sd6 Sf6#
1...Kb7 2.Sd7 Re5+ 3.Kd6 Sf7# (2023-02-02)
comment

Keywords: discovered checkmate (in 2), Aristocrat, Batteriematt horizontal (in 2), Echo, Remote selfblock (in 3), Ideal mate, Indian (in 2), Minimal (s), Selfblock (in 1), Tempo Move, Miniature
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 4R3/8/1K3n1N/3k4/8/8/8/8
Input: Gunter Jordan, 2023-01-29
Last update: Gunter Jordan, 2023-11-27 more...

24 - P1409841
Andrew Buchanan
1 Phénix 331, p. 12922, 06/2022
after A.Lubusov

(15+6) C+
h#2* (AP)

1. ... e6 2. 0-0? Lxh7# (castling rights lost)
1. ... Txh7 2. Tf8 Te7#

1. cxb3ep Txh7 2. Tf8? Te7# (ep needs AP justification)
1. cxb3ep e6 2. 0-0! Lxh7#
play all

White pawns have captured 9 times right-to-left, accounting for all but one missing Black unit. So by parity, there were no other pawn captures by White. So wBb never left that file, and Black cannot have just played Bb3xa2 behind it. sBa was waylaid on a-file by an officer.

So if Black moved last, it must have been Ke8 or Th8, and Black has lost castling rights.

On the other hand, if White moved last, then Black needs a tempo move. The only possible one is ep capture. (1. Tg8+? is check.) But the ep capture is only legal if Black retains castling rights, so Black's second move must indeed be 0-0 for A Posteriori justification.

In this case, last moves were R: 1. b2-b4 b3xDa2 & e.g. 2. Le3-d4,~ b4-b3 3. d4xSc5,~ Sa6-c5,~ with many ways for White to release Black.

Corrects P0000615.
more ...
comment

Keywords: a posteriori (AP), RIFACE Retro Solving Tourney (2022), En passant as key, Castling (sk), Tempo Move, waylaid (sBa)
Genre: h#, Retro
Computer test: HC+ Popeye v4.87 & simple retro thinking
FEN: 4k2r/1N1p3p/3P4/1PPPP3/1PpBBP2/P1N3K1/p7/R6R
Input: A.Buchanan, 2023-05-20
Last update: A.Buchanan, 2023-09-11 more...

25 - P1411826
Tivadar Kardos
743 Magyar Sakkvilag 01/03/1949
2. Preis

(6+14)
#12*

* 1. ... Ta2 2. Kb4 Ta3 3. Kxa3 Lb7 4. Tf1#

1. Kd4! Ta2 2. Ke5 Ta3 3. Kf6 Ta2 4. Ke7 Ta3 5. Ke8 Ta2 6. Kd8 Ta3 7. Kc7 Ta2
8. Kb6 Ta3 9. Kc5 Ta2 10. Kb4 Ta3 11. Kxa3 Lb7 12. Tf1#
play all

Henrik Juel: White king corrects the tempo by passing e8, the only square where he is safe from Lg2
He does a long march, but not a round trip (2023-08-15)
SCHRECKE: 10. ... a3 11. Kc3,Kc5 (Dual) (2023-08-15)
msterkowiec: Maybe it will be interesting (for me it is) that this position can be easily transformed into #34. This is because pawns wh.a5 and bl.a6 are only to avoid later/minor dual (there would be also 9.Ka5 without these pawns).

If remove these pawns (and accept minor later duals) and add black pawn a7 (8/3p3p/3P4/8/p4N2/rpK1p1pp/1p2Bkbr/bR5n) we would have the following #34: 1. Kd4 Ra2 2. Ke5 Ra3 3. Kf6 Ra2 4. Ke7 Ra3 5. Ke8 Ra2 6. Kd8 Ra3 7. Kc7 Ra2 8. Kb6 Ra3 9. Ka5 (also 9.Kc5) 9... Ra2 10. Kb4 h6 11. Kc5 Ra3 12. Kd4 Ra2 13. Ke5 Ra3 14. Kf6 Ra2 15. Kg7 h5 16. Kf6 Ra3 17. Ke5 Ra2 18. Kd4 Ra3 19. Kc3 (also 19.Kc5 )19... Ra2 20. Kb4 h4 21. Ka5 Ra3 22. Kb6 Ra2 23. Kc7 Ra3 24. Kd8 Ra2 25. Ke8 Ra3 26. Ke7 Ra2 27. Kd8 (also 27.Kf6) 27...Ra3 28. Kc7 Ra2 29. Kb6 Ra3 30. Ka5 Ra2 31. Kb4 a3 32. Kc3 (also 32.Ka5 and 32.Kc5) 32... Bd5 33. Rf1x (2023-08-15)
msterkowiec: Erratum: Add black p.h7 (not a7) (2023-08-15)
comment

Keywords: Tempo Move
Genre: n#
FEN: 8/3p4/p2P4/P7/p4N2/rpK1p1pp/1p2Bkbr/bR5n
Reprints: 194 Ungarische Schachproblem Anthologie , p. 177, 1983
Input: Dieter Berlin, 2023-08-15
Last update: Dieter Berlin, 2023-08-15 more...

26 - P1412924
Zlatko Mihajloski
19318 Die Schwalbe 320, p. 89, 04/2023

(2+7)
h#5
2.1...

1) 1. Ta6 Kxb3 2. b5 Kb4 3. Kb6 Kb3 4. Ka5 Ka3 5. b6 b4#
2) 1. Kb8 Kb4 2. Ta8 Kxb3 3. Ka7 Ka4 4. Ka6 b4 5. Ta7 b5#
play all

Henrik Juel: C+ Popeye 4.61 (2023-10-15)
comment

Keywords: Pawn mate, Chameleon Echo, Klasinc theme (k-t in 2), Minimal (B), Model mate, Tempo Move, Switchback (k in 2), Reciprocal moves by White
Genre: h#
FEN: 8/kp6/1p6/8/2K1n3/rp1p4/1P6/8
Input: Gunter Jordan, 2023-10-15
Last update: Felber, Volker, 2023-11-01 more...

27 - P1413095
Eric Schaer
Schweizerische Schachzeitung 1980

(8+6) C+
#5

1. Lb5+? Dd3 2. Lxd3+ exd3 3. Th2 d2 4. Lxd2 b5!

1. Th2! b5 2. Lxb5+ Dd3+ 3. Lxd3+ exd3 4. Ld2 Sf2 5. Txf2#
play all

more ...
comment

Keywords: Tempo Move, Zugzwang-Goal
Genre: n#
Computer test: SCHRECKE: Gustav 4.2e
FEN: 3q4/3Bp3/1p2P3/8/1P2p3/2B1P2N/2R5/1K3k1n
Reprints: 269 Schweizer Schachkompositionen 1976-1986 , p. 97, 1989
Input: Dieter Berlin, 2023-10-21
Last update: Dieter Berlin, 2023-10-22 more...

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