Chess Problem Database Server

31 problem(s) found in 2570 milliseconds (displaying 31 problem(s)). [COMMENTDATE>=20220810 AND NOT K='Miniatur' AND K='Abzugsschach'] [download as LaTeX]

1 - P1022852
Friedrich Capraez
575 Schachzeitung , p. 406, 12/1853

(4+5) C+
#3

1. Sxd6+! Kf6 2. Df5+ exf5 3. Sf7#
1. ... Kg5 2. Dg3+ Kf6,Kh6 3. Dg7#
play all

Das Original hat Nebenlösungen, es fehlt der sLd2. Wann, wo und von wem wurde er hinzugefügt?
Felber, Volker: Der Autor moniert in der Schachzeitung 04/1863, Seite 108 '... die Weglassung des von mir angegebenen schwarzen Läufers auf d2'. (2018-05-02)
more ...
comment

Keywords: Brian Stephenson Collection (7711), Capture key, Checking key, Discovered check (Schlüssel), discovered checkmate, Queen sacrifice
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: 5K2/8/R2pp1k1/5N1p/8/3Q4/3b4/8
Reprints: 200 Intriguing Chess Puzzles 1996
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-12-24 more...

2 - P1036812
Cyril S. Kipping
Reading Observer 1912

(13+6) C+
#2

1. e4+! Kc4+ 2. Sfxd6#
1. ... Kxe4+ 2. Sbxd6#
1. ... Kc5+ 2. Sbxd6#
1. ... Ke5+ 2. Sfxd6#
1. ... Kc6+ 2. Sbd4#
1. ... Ke6+ 2. Sfd4#

1. ... fxe3ep 2. Se7#
play all

F. Chlubna: Task von sechs Abzugsschachs durch den schwarzen König.

more ...
comment

Keywords: Brian Stephenson Collection (21754), Checking key, Task (Construction), Discovered check (sK - sechsfach), En passant (s), Cross check, Battery mates
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 3B4/1bP5/1n1r2P1/RN1k1N1R/B4pQ1/P7/2P1P2n/3K4
Reprints: 300 Chess Problems 1916
72 Versunkene Schätze , p. 37, 1998
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-11 more...

3 - P1057122
Wolfgang Pauly
Running the Gauntlet 1911

(14+8)
#3

1. f3! Lxe3+ 2. d4+ c4xd3ep+ 3. Kb4#
1. ... Sxb2 2. d4+ c4xd3ep 3. Dxc3#
1. ... Sxe3 2. Sg7 ... 3. Lxc3#
play all

Henrik Juel: double threat 2.d4+,Lxc4 and duals after 1... Sdf2,Shf2,Lh2,Ke6 (2022-12-22)
comment

Keywords: Brian Stephenson Collection (42178), pin-mate (doppelt), Sacrifice of white pieces (S, L), Cross check, En passant (s), Discovered check (s doppelt)
Genre: 3#
FEN: 8/p4p2/2P2P1R/R1K1kN1P/2p5/2r1N1Pn/BB1P1P2/3nQ1b1
Reprints: 124 Classic Chess Problems by Pioneer Composers , p. 70, 1970
Wolfgang Pauly. Challenge of a Legacy 2001
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-22 more...

4 - P1059451
Helmut Pruscha
D106 FIDE Olympia Turnier 14 Leipzig 1960
6. ehrende Erwähnung

(6+9) C+
#3

1. Lb8? T6xa5 2. Se8+ Kf5 3. Sd6+ Ke5!
1. La1? T4xa5 2. Se6+ Kf5 3. Sd4+ Ke5!
1. Lh2? Lxa5 2. Sxh5+ Kf5 3. Sg3+ Ke5!

1. Lf4! T6xa5 2. Se8+ Kf5 3. Sd6#
1. ... T4xa5 2. Se6+ Kf5 3. Sd4#
1. ... Lxa5 2. Sxh5+ Kf5 3. Sg3#
play all

more ...
comment

Keywords: Brian Stephenson Collection (44518), Deflection, Discovered check (dreifach)
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: n5Q1/6N1/r4pk1/R3B1pp/r3p2R/8/8/4b2K
Reprints: 250 FIDE Album 1959-1961 , p. 63, 1966
1550 Beispiele zur Ideengeschichte des Schachproblems , p. 312, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-03-08 more...

5 - P1249955
Anatoly Stepochkin
37 Gravure 2012
3. Preis

(6+4) C+
s#11*

* 1. ... d4#
1. La5! d4+ 2. Kd2+ Kd5 3. Ke1 Kc5 4. Db6+ Kd5 5. Te3 dxe3 6. Lc3 e2 7. Dc7 Ke6 8. Sf4+ Kf5 9. Dc5+ Kxf4 10. Ld2+ Kf3 11. Df2+ gxf2#
play all

SCHRECKE: C+, Gustav 4.2b, Brute Force (2022-12-28)
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Keywords: Pawn mate, Fata Morgana, Model mate, Switchback (L, k), Discovered check
Genre: s#
FEN: 8/8/6Q1/3pk3/6p1/3PK1p1/3BR1N1/8
Input: Frank Müller, 2012-09-25
Last update: Marcin Banaszek, 2023-01-04 more...

6 - P1287214
Fritz Apscheneek
27 Nedela (Riga) 01/04/1923

(9+5)
s#3

1. Sf7 Lb8 2. Tc7+ Kxc7 3. La7 Lxa7#
play all

SCHRECKE: C+, popeye 4.89 (2023-12-14)
comment

Keywords: Discovered check, Rook sacrifice, Switchback (l), Model mate
Genre: s#
FEN: 2B5/b2P4/1k6/p1RPN3/P7/4B2p/6pP/6K1
Input: Mario Richter, 2014-08-23
Last update: Gunter Jordan, 2023-12-14 more...

7 - P1300185
Friedrich Capraez
482 Schachzeitung , p. 29, 01/1853

(6+5) C+
#3

1. Sd7+! Kg4 2. Lc6+ Te4 3. Se5#
play all

more ...
comment

Keywords: Checking key (Abzug), Discovered check, Flight-giving key, pin-mate
Genre: 3#
Computer test: Popeye Windows-64Bit v4.69 (5228 MB) / Juel: Popeye 4.61
FEN: 3Bb3/8/5N2/7p/KR2B2k/5R2/8/4r2q
Input: Frank Müller, 2015-03-28
Last update: Dieter Berlin, 2023-12-24 more...

8 - P1357137
Mario Parrinello
17392 Die Schwalbe 290, p. 437, 04/2018
Informalturnier 2018
2. Lob

(6+12) C+
h#3
2.1...

1) 1. Kc4+ Kxe6 2. Kb4+ Kf5 3. Lc4 Sa6#
2) 1. Ke5+ Kc7 2. Kf6+ Kb6 3. Le5 Se4#
play all

more ...
comment

Keywords: Discovered check
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 5q2/3Kpnr1/4p3/npN4P/p2k2P1/1b6/PP5b/3r4
Input: Felber, Volker, 2018-10-31
Last update: Dieter Berlin, 2024-04-15 more...

9 - P1386359
Kurt Keller
C11885 The Problemist 28-1, p. 15, 01/2021
New Year greetings

(8+1) C+
#4

Only two #3s this time, and no excessively long moremovers. [...] Keller presents with New Year greetings a symmetrical Christmas tree – but the 2 variations are not symmetrical.
(Jim Grevatt (Headly, England): CHAMPIONSHIP ORIGINALS. THREE- and MOREMOVERS, in: THE PROBLEMIST, JANUARY 2021)

Comments:

Yet Another Chess Problem Database (...)
Meson Chess Problem Database (249089)

Rosalie Fay: 1. Ld2 zz Kf4 2. Sf1+ Kg4 3. Te4+ Kh5 4. Sg3#;
1. ... Kd4 2. Kd6 zz Ke4 3. Tf2 zz Kd4 4. Tf4#
C+ Popeye Windows-64Bit v4.69 (2023-12-31)
comment

Keywords: Symbol problem (Christmas tree), Option key, Rex solus, Switchback (k), Model mate, Battery creation, Battery play, Discovered check, Batterieabbau (Te2/Se3), Symmetrical position, Asymmetrical solution, Brian Stephenson Collection (249089)
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 8/8/4K3/3P1P2/4k3/4N3/2P1R1P1/4B3
Input: Kurt Keller, 2021-02-10
Last update: Kurt Keller, 2021-07-20 more...

10 - P1388717
Ralf Krätschmer
R554 The Problemist 05/2020

(11+9) C+
BP in 11.5

1. b4 f5 2. b5 f4 3. b6 f3 4. bxc7 fxg2 5. cxb8=S gxh1=D 6. Sxd7 Dd5 7. Sxf8 Dxd2+ 8. Lxd2 Dxd2+ 9. Sxd2 Kd8 10. Sxh7 Txh7 11. Tc1 Th8 12. Sb1+
play all

Moldenhauer: Computerprüfung: C+ Natch 3.3 in 5 Tage 10 Std. 49 Min. eine Lösung gefunden.
Prüfung BP in 11 u. 12, keine Lösung! (2022-08-30)
A.Buchanan: Since the position is check, the only shorter PG which requires examination is 10.5 (2022-08-30)
Moldenhauer: Computerüberprüfung: BP in 10.5 Natch 3.3 keine Lösung! Zeit 16 Std. 22 Min. (2022-09-01)
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Keywords: Discovered check, Unique Proof Game, Excelsior black, Excelsior white, Prentos Theme (Sd), Switchback (St), Promotion (d), under-promotion (S), x pieces capture on one square (4)
Genre: Retro
Computer test: Computerprüfung: C+ Natch 3.3 in 5 Tage 10 Std. 49 Min. eine Lösung gefunden. Prüfung BP in 11 u. 12, keine Lösung!
FEN: r1bk2nr/pp2p1p1/8/8/8/8/P1P1PP1P/1NRQKBN1
Input: Gunter Jordan, 2021-04-18
Last update: A.Buchanan, 2022-08-30 more...

11 - P1388859
Volker Gülke
18326 Die Schwalbe 305 10/2020
2. Lob
PR Wassyl Djatschuk

(11+13) C+
s#3

1. Da8! droht 2. Tc6+ Kd5 3. Txc4+ Tb7#
1. ... gxf5 2. Td7+ Ke6 3. Da6+ Tb6#
1. ... Sf7 2. Tb6+ Sd6 3. Tb5+ Txb5#
1. ... Shxf5 2. Txf6+ Sd6 3. Te6+ Kxe6#

1. ... fxg5 2. Td7+ Kf6 3. Da6+ Tb6#
play all

Gunter Jordan: Ein 2. Lob für dieses Meisterwerk ist eher peinlich. (2024-01-19)
comment

Keywords: Motivinversion (simultan), Schlüssel = Eckzug, Battery play, Discovered check, Black correction, Batteriematt diagonal, discovered checkmate, Königsbatterie
Genre: s#
Computer test: Popeye 4.83
FEN: 1N5b/2B5/3R1ppn/p3kBP1/2p4N/2KpnQP1/rr1PR3/qb6
Input: Schwalbe, 2021-04-21
Last update: Gunter Jordan, 2024-01-19 more...

12 - P1399890
Bernard Courthiau
9181 Phénix 325 12/2021

(11+10)
#15

1. Lh6? c5!
1. Lc5! Kc1 2. Lxe3+ Kb1 3. Lh6 c5 4. Kg5 Kc1 5. Kh5+ Kb1 6. g5 Kc1 7. g6+ Kb1 8. Tf4 Kc1 9. Tg4+ Kb1 10. f4 Kc1 11. f5+ Kb1 12. Tf4 Kc1 13. Tff1+ Kb1 14. Txd1+ exd1=D+ 15. Txd1#
play all

Anton Baumann: C+ Gustav 4.2a (2023-05-10)
comment

Keywords: Discovered check, Battery creation, pin-mate, Indian (5-fach), Opferbahnung, Switchback (k)
Genre: n#
FEN: 5B2/5R2/2p3K1/8/2P1P1PP/1p1BpPP1/prp1p3/bk1bR3
Input: Gunter Jordan, 2022-03-20
Last update: Gunter Jordan, 2022-03-20 more...

13 - P1403812
Gustav A. Barth
21v New York Recorder 26/08/1893

(6+5) C+
#3

1. Tf6! droht 2. Tb6 ... 3. Tb5#
1. ... Kd4 2. Txf5+ Ke3 3. Sf1#
play all

im Original im 'New York Recorder' stand der wT auf f8 (dann aber NLs 1. Tc8! und 1. Tb8!)
Henrik Juel: C+ Popeye 4.61 (2022-08-23)
more ...
comment

Keywords: Battery creation, Flight-giving key, Discovered check
Genre: 3#
Computer test: Henrik Juel (2022-08-23): C+ Popeye 4.61
FEN: 8/1p1K1RB1/6p1/p2k1p2/8/3B4/2P4N/8
Reprints: 35 Staten Island Chess-Nuts 05/1895
Input: Mario Richter, 2022-08-23
Last update: Gunter Jordan, 2022-08-23 more...

14 - P1406954
Ivan Soroka
S594 Problem-Forum 2018
3. Preis
PR Sven Trommler

(10+5) C+
s#6

1. Dd4! (Z) axb1=S 2. dxe8=L+ Kc8 3. Ld7+ Kb7 4. Tb8+ Kxa6 5. Lb5+ Ka5 6. Dc3+ Sxc3#
1. ... axb1=L 2. dxe8=S+ Kc8 3. S8c7+ Kb7 4. Dd5+ Kb6,Ka7 5. Sa8+ Kxa6 6. Lxd3+ Lxd3#
play all

Der Preisbericht erschien in Gaudium 260, 10/06/2022.

PR: "Die beiden reziproken Unterverwandlungen werden mit Hilfe von mehreren Batterien realisiert, die zunächst aufgebaut und danach abgefeuert werden. Dabei legt der schwarze König in beiden Varianten einen weiten Weg zurück, bis er die passende Position erreicht hat. Der Materialeinsatz ist sehr sparsam, wobei der wLg6 für meinen Geschmack dennoch etwas unterbeschäftigt ist. "

SCHRECKE: vergleiche: P1184753 (2022-12-31)
comment

Keywords: discovered checkmate, Discovered check, Batteriematt horizontal, Battery play, double-check mate, under-promotion (sL, lS), under-promotion key, under-promotion B/S
Genre: s#
FEN: 3kb2R/Q2P3R/N5BP/8/8/3p4/p2P4/rN1K4
Reprints: Gaudium 260, p. 1, 10/06/2022
Input: Gunter Jordan, 2022-12-31
Last update: Gunter Jordan, 2022-12-31 more...

15 - P1406982
Kurt Laue
14230 Deutsche Schachzeitung 8, p. 187, 08/1917

(6+5) C+
#3

1. Lb5! f3 2. Sc2 Kxc2 3. La4#
1. ... h3 2. Lxf4+ Kxe1 3. Lg3#
1. ... a2 2. Lc3+ Kc1 3. Lb2#
play all

more ...
comment

Keywords: Battery creation, Knight sacrifice (zweifach), Drag-in sacrifice, Discovered check
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/3p4/3R4/8/1P3p1p/p2B4/3B4/K2kN3
Input: Dieter Berlin, 2023-01-02
Last update: Dieter Berlin, 2023-01-02 more...

16 - P1407283
Sergii I. Tkachenko
Andrey Frolkin
Leonid Lyubashevsky
H1530 Problemist Ukrainy 75 01-03/2023

(8+10) C+
h#4

1. d1=T Kc3 2. b1=S+! Kc2 3. Lc3 Kxd1 4. Kd3 Lxb1#
play all

Yuri Bilokin: you can see 1...Kc3 2.b1=S+ Kc2 3.Bc3 Kd1 4.Kd3 Bxb1# (2023-01-16)
comment

Keywords: Discovered check, Antiphönix, Remote selfblock, konsekutive Umwandlungen 2 (ts), Schnoebelen Theme (ts), under-promotion (ts), under-promotion key
Genre: h#
FEN: 8/3p4/1p1P4/1P6/1PK1k3/1P2P3/Bp1p1Pp1/b4nrb
Input: Gunter Jordan, 2023-01-15
Last update: Gunter Jordan, 2023-01-15 more...

17 - P1407621
Wilfried Neef
1769 Augsburger Allgemeine 21/01/2023

(8+5) C+
#5

1. Kxd5! Kd3 2. Lb1+ Ke3 3. Sac2+ Kd3 4. Sa3+ Ke3 5. Sc4#
play all

Wilfried Neef: Satz: 1. ...Kd3 2.Lb1+ Ke3 3.Sac2+ Kd3 4.Sxb4+ Ke3 5.Sxd5# (2023-02-22)
comment

Keywords: Battery creation, Switchback (k), Discovered check, Capture key
Genre: n#
Computer test: Gustav 4.1d
FEN: 8/8/8/p2pK3/Pp1N2p1/1P2k1P1/B7/N3B3
Input: Felber, Volker, 2023-02-05
Last update: Gunter Jordan, 2023-02-05 more...

18 - P1407716
Paul Raican
19038 Die Schwalbe 316, p. 621, 08/2022

(7+5)
s#15

1. Da2+? Kxc1 2. Db1+ Kd2 3. Sd1+ Ke2 4. Td3 Kf1 5. Se3+ Kf2 6. Df1+ Kg3 7. Sc4+ Kh2 8. Td2+ Kg3 9. Dg2+ Kf4 10. Td4+ Kf5 11. Df2+ Kg5 12. Ld2+ Kxh5 13. Dxh4+ Kg6 14. Dh6+ Kf5 15. De6+ fxe6#?, aber 15. ... Lxe6+!

1. Se2+! Kxe2 2. Da6+ Lb5 3. Tc2+ Kd1 4. Da1+ Kxc2 5. Tc3+ Kd2 6. Tb3+ Kc2 7. Tb2+ Kd3 8. Td2+ Ke3 9. Dg1+ Kf4 10. Td4+ Kf5 11. Df2+ Kg5 12. Ld2+ Kxh5 13. Dxh4+ Kg6 14. Dh6+ Kf5 15. De6+ fxe6#
play all

Henrik Juel: Popeye 4.61 with 'thr 0 non 0 1' found no flaws (2023-02-10)
comment

Keywords: Discovered check, Battery creation, Pawn mate, Queen sacrifice, Perpetual check, Model mate, Sacrifice of white pieces, Switchback (k), Checking key, Selfblock
Genre: s#
FEN: 8/1n1b1p2/8/Q2K3B/1B5p/2N2R2/3k4/2R5
Input: Gunter Jordan, 2023-02-10
Last update: Felber, Volker, 2023-02-17 more...

19 - P1408167
Marko Ylijoki
4932 idee & form 157, p. 5315, 01/2023

(2+7) C+
h#5
b) sDc6->d6

a) 1. Kc5 f8=D+ 2. Kd4 Da8 3. Dc3 Dxg2 4. Kd3+ Kf1 5. Ld4 De2#
b) 1. Sg8 fxg8=D 2. Db4 Dxg3 3. Kc5 Kf2 4. Kc4+ Ke2 5. Lc5 Dd3#
play all

more ...
comment

Keywords: Minimal (B), Promotion (D), Discovered check, Epaulettenmatt, Echo, Model mate, Selfblock, Remote selfblock (in b)
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 8/b4P2/1kq2n2/8/8/6p1/6p1/6Kb
Input: Felber, Volker, 2023-03-09
Last update: Felber, Volker, 2023-03-10 more...

20 - P1408770
Marko Ylijoki
H4671 The Problemist 29-2, p. 63, 03/2023

(3+12) C+
h#6
0.2.1...

1) 1. ... b8=D+ 2. Kg4+ Df4+ 3. Kh5 Dd2 4. Le3 fxe3 5. Kg4 Dd1 6. Kg3 Dg1#
2) 1. ... b8=T 2. b2+ Txb2 3. d2+ Kxc2 4. d1=S Kd3 5. Se3 Te2 6. Sf5 Te4#
play all

Yuri Bilokin: you can see 1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bf6 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Be7 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bd8 Qxf3#
1.Bf6 b8=Q+ 2.Kg4 Qxb3 3.h2 Qd5 4.Kh3 Qxf3# (2024-02-29)
comment

Keywords: Checking key (in 1), Promotion key (in 1), under-promotion key (in 2), under-promotion (ts in 2), konsekutive Umwandlungen 2 (ts in 2), bi-coloured Bristol (in 1), Cross check (in 1), Discovered check (in 1), selfpinning (in 1), Unpinning (in 1), Switchback (k in 1), Model mate (in 1), Exchange of Promotions
Genre: h#
FEN: 5n1n/1P6/8/6b1/5k1p/pppp1p1p/2p2P2/2K5
Input: Gunter Jordan, 2023-04-10
Last update: Felber, Volker, 2023-10-15 more...

21 - P1408897
Marko Ylijoki
H1852 Probleemblad 1/23 01-03/2023
Onerva gewidmet

(3+15) C+
h#6
0.2.1...

1) 1. ... d8=T+ 2. Kc4+ Td3 3. Lg8 Txb3 4. Sc7 Txe3 5. Dc2+ Kxc2 6. Sd5 Te4#
2) 1. ... d8=L 2. Lf5 Lf6 3. Lh3 Lxb2 4. Kd2 Lf6 5. Ke1 Kc1 6. Lf1 Lh4#
play all

Yuri Bilokin: you can see h#3 1.c4 d8=Q+ 2.Rd5 Qxa5 3.c3 Qxd5# (2023-04-19)
comment

Keywords: under-promotion key (t,l), under-promotion (t,l), Checking key (in 1), Cross check (in 1), Discovered check (in 1), Königsbatterie (in 1), selfpinning (in 1), Unpinning (in 1), Line opening (in 1), Selfblock, Switchback (L in 2), Model mate (in 2)
Genre: h#
FEN: 8/3P3b/n7/rrp5/qp3p2/pp1kpP2/1p2p3/bK6
Input: Gunter Jordan, 2023-04-15
Last update: Gunter Jordan, 2023-07-25 more...

22 - P1409312
Jean Carf
G888 Problemist Ukrainy 76 04-06/2023

(6+5)
pser-s#7

1. Tb2 2. Kb5 3. Kc4 4. Kc3 5. Sc4 6. Le4+ Kxe4+ 7. ... Dd3+ Txd3#
play all

Henrik Juel: C+ Popeye 4.61 (2023-05-05)
comment

Keywords: Parry Series, Seriesmover, Remote selfblock, Selfblock, Queen sacrifice, Discovered check, Cross check
Genre: Fairies
FEN: 3Q4/8/KN4B1/1Rp5/5p2/5krP/7r/8
Input: Marcin Banaszek, 2023-05-05
Last update: Gunter Jordan, 2024-01-28 more...

23 - P1409573
Eberhard Schulze
Heilbronner Stimme 27/08/2011
Wolf Böhringer gewidmet

(4+5)
h#2
b) wKa6->a2

a) 1. Ke5+ Dd6+ 2. Ke4 Sg3#
b) 1. Ke5+ Dd5+ 2. Kf4 g3#
play all

Abzugs- und Gegenschachs, Matts von g3 aus mit wS und wB

Henrik Juel: C+ Popeye 4.61 also (2023-05-12)
more ...
comment

Keywords: Twin, Königsbatterie, Checking key, Exchange of roles (S-B), Discovered check
Genre: h#
Computer test: Gustav 4.2
FEN: 6b1/8/K3k2r/8/6p1/3Qp3/6P1/7N
Input: Eberhard Schulze, 2023-05-12
Last update: Gunter Jordan, 2023-05-12 more...

24 - P1409597
Eberhard Schulze
Problem-Forum 15/12/2012

(2+6) C+
h#7

1. Tg5 Ka1 2. Tbg3 Kb1 3. Ke4 Kc2 4. Kf3 Kd3 5. Kg4+ Ke4 6. Kh4 Kf4 7. Th5 hxg3#
play all

Yuri Bilokin: Doubled black pawns are optional. bPa4-g7 8/6p1/8/3k4/8/pr5p/K6P/6r1 (2+6) (2023-05-14)
more ...
comment

Keywords: Minimal (B), Model mate, Pawn mate, Indian, Discovered check
Genre: h#
Computer test: Gustav 4.2
FEN: 8/8/8/3k4/p7/pr5p/K6P/6r1
Input: Eberhard Schulze, 2023-05-13
Last update: Felber, Volker, 2023-05-14 more...

25 - P1411620
Lörinc Bata
Magyar Sakkelet 1953

(6+7) C+
#8

1. Ta1! d4 2. La2 d5 3. Lb1 Le3 4. Lc2+ Lg1 5. Ld1 Le3 6. Le2+ Lg1 7. Lf1 Le3 8. Lg2#
play all

more ...
comment

Keywords: double-check mate, Zig Zag Path (L), Schlüssel = Eckzug, Discovered check, Unpinning, Corner mate
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/8/3pB3/3p4/p4p2/P2P1P1K/7p/4R1bk
Reprints: 190 Ungarische Schachproblem Anthologie , p. 176, 1983
Input: Dieter Berlin, 2023-08-05
Last update: Gunter Jordan, 2023-08-06 more...

26 - P1413526
Karl Junker
Deutsche Schachzeitung 1968
Informalturnier 1968
2. Preis

(9+9) cooked
#3

1. g3! droht 2. Df4+
1. ... Tc1 2. Lxc2+
1. ... c1=D 2. Lxb1+
1. ... Tb4,Lc1 2. Lg6+
1. ... Ta4 2. Ld7+
1. ... Ld6 2. De3+
1. ... Sg4 2. Df4+
play all

Preisr. Hans Klüver: Großartige Differenzierung von sechs Läuferabzügen.
Cook: 1. f8=D
1. f8=T 1. f8=L 1. f8=S
1. Lg4,Lc8,Ld7,De3+

more ...
comment

Keywords: Discovered check (wL, vierfach)
Genre: 3#
Computer test: H. Juel
FEN: 8/5PB1/r1p2P2/1n2kB1R/8/b1P2p1K/2pQ2Pn/1r6
Reprints: 50 Ausgewählte Schachaufgaben [Junker] , p. 36, 1971
Input: Dieter Berlin, 2023-11-14
Last update: Dieter Berlin, 2023-11-14 more...

27 - P1413684
Paul Wenman
113 Two Hundred Assorted Problems , p. 31, 1945

(6+8)
#3

1. De6! Lxe6 2. Sf5+
1. ... Txe6 2. Shg6+
1. ... Dxe5 2. Sf5+
play all

Henrik Juel: duals like 1... Tf7 2.Shf3,Shg6,Sf5+ (2023-11-26)
comment

Keywords: Sacrifice key, Flight taking, Discovered check (dreifach), Nowotny
Genre: 3#
FEN: 2b2r2/2n3pk/r7/4N3/2Q2p1N/7R/1q4PK/8
Input: Dieter Berlin, 2023-11-26
Last update: Dieter Berlin, 2023-11-26 more...

28 - P1413714
Peter Sickinger
Raúl Jordan
19869 Schach , p. 95, 07-08/2023

(13+10)
s#3

1. Sc7! droht 2. Sc4+ ... 3. b4+ Txb4#
1. ... Tc2 2. Sf3 Kc6 3. Dc4 Txc4#
1. ... Txd2 2. Sd7 Kd6 3. Dd4 Txd4#
( 1. ... Lf3,Lxh5 2. Dxe7+ Lxe7 3. b4+ Txb4# )
play all

19.869 (Sickinger/Jordan) 1.Sc7! (2.Sc4+ L:h5 3.b4+ T:b4 matt) 1… Tc2 2.Sf3+ Kc6 3.Dc4+ T:c4 matt, 1… T:d2 2.Sd7+ Kd6 3.Dd4+ T:d4 matt, 1… Lf3,L:h5 2.D:e7+ L:e7 3.b4+ T:b4 matt (3 P.). „In der Drohung profitiert Weiß von der Entfesselung des wBb3 samt Aussperrung seiner Dame, und in den Hauptvarianten von der Fesselung desselben Bauern samt Einbezug seiner Dame. Das ist paradox und selbstmatt-spezifisch“ (Autoren). „Die weiße Halbbatterie sorgt für Abwechslung“ (VZ). „Dreimal weißes Damenopfer, hübsch“ (MM).

Stefan Felber: In der Drohung muß es 2.Sc4+ Lxh5 heißen. (2023-11-27)
Henrik Juel: C+ Popeye 4.61 (2023-11-27)
comment

Keywords: pin-mate, half-battery, white, Battery play, Queen sacrifice, Discovered check, Line closing
Genre: s#
FEN: 3R1b2/1p2p1p1/pP2P1P1/P1kNN2R/K6Q/pP6/rr1P4/3b3B
Input: Felber, Volker, 2023-11-27
Last update: Gunter Jordan, 2024-03-29 more...

29 - P1414493
G. Jordan
5130 Sachmatija 02/23 04-06/2023

(4+10) C+
h#7
0.1.1...

Versuch: 1. ... d6? 2. Kf4 Ke2 3. Ld2 ?? 4. Te1+ Kxf2 5. Te7 dxe7 6. Kg4 e8=D 7. Kh3 Dh5#

1. ... Kc1 2. Kf3 Kb1 3. Ld2+ Ka2 4. Te1 d6 5. Te7 dxe7 6. Lf4 e8=D 7. Lg3 De4#
play all

Yuri Bilokin: you can see 1.Kf4 d6 2.Bd2+ Ke2 3.Re1+ Kxf2 4.Re7 dxe7 5.Kg4 e8=Q 6.Kh3 Qh5#
1.Kf4 Ke2 2.Bd2 d6 3.Re1+ Kxf2 4.Re7 dxe7 5.Kg4 e8=Q 6.Kh3 Qh5# (2024-01-30)
comment

Keywords: Discovered check, Entblockung, Selfblock, Promotion (D)
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 8/3p4/8/3P4/3p4/2pPk3/2P2pp1/3Kbrrb
Input: Gunter Jordan, 2024-01-14
Last update: Gunter Jordan, 2024-01-14 more...

30 - P1416005
Anatoly Stepochkin
473 Sinfonie Scacchistiche 2022
1. Preis
PR Daniele Gatti

(11+11)
s#16

1. Lg3! droht 2. Sc1+ Kc3 3. Tc2+ Lxc2#
1. ... Kc3 2. Le5+ Kb3 3. Lf4 Kc3 4. Ld2+ Kb3 5. Lh6 Kc3 6. Lxg7+ Kb3 7.
Lf8 Kc3 8. h8=D+ Kb3 9. g7 Kc3 10. g8=S+! Kb3 11. Sf6 Kc3 12. Se4+ Kb3 13. Dc3+! bxc3 14. Sd2+! cxd2 15. Sxc5+ Kc3 16. Tc2+ Lxc2#
play all

Frank Richter: Angesichts Aufgaben wie der P1415726 oder P1391762 mit derselben schwarzen Matrix und ähnlicher Grundidee ist die hohe Auszeichnung zumindest verwunderlich. (2024-03-22)
comment

Keywords: Discovered check, Antiphönix, konsekutive Umwandlungen 2 (DS), Logical Problem, Switchback (k), Promotion (D), under-promotion (S)
Genre: s#
FEN: r7/2b2BpP/2Nn2P1/qpp4P/bpp3P1/1k1N4/R3P3/1K2B3
Input: Gunter Jordan, 2024-03-22
Last update: Gunter Jordan, 2024-03-22 more...

31 - P1416303
Aleksandr Pankratiev
Igor Yarmonov
698 Pat a Mat 125 09/2023

(6+12) C+
#12

1. Td7+! Ke5 2. Te7+ Kd5 3. Le6+ Ke5 4. Lg4+ Kd5 5. Td7+ Ke5 6. Ld6+
Kd5 7. Lf8+ Ke5 8. Te7+ Kd5 9. Ta7 c5 10. Tc7 f5 11. Txc5+ Ke6 12. Lxf5#
9. ... c3 10. Ta5+ Kc4 11. Le6#
play all

more ...
comment

Keywords: Attack number, Discovered check, Battery play, Model mate, Switchback (Tk), Checking key
Genre: n#
Computer test: SCHRECKE: Gustav 4.2h
FEN: 2B5/2R3pK/2p2pP1/3k2Pn/2pppp2/B2pr3/b7/8
Input: Gunter Jordan, 2024-04-11
Last update: Dieter Berlin, 2024-04-13 more...

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

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