Die Schwalbe

28 problem(s) found in 3457 milliseconds (displaying 28 problem(s)). [COMMENTDATE>=20220810 AND K='Springeropfer' AND K='Turmopfer'] [download as LaTeX]

1 - P1022796
Maximilian Feigl
Bohemia 1900
P1022796
(9+11) C+
#2
1. Sf6! droht 2. Td5#
1. ... Dxd4 2. Sxd7#
1. ... Txd4 2. Sg4#
1. ... Sxd4 2. De7#

1. ... Kxf6 2. Td6#
1. ... Txf5 2. Te4#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (7654), selfpinning (dreifach), Doppelmatt (zweifach), Rook sacrifice, Flight giving sacrifice key, Knight sacrifice
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 1b2K3/q2p2pp/p1n5/3NkP1r/2PR3r/Q6N/8/BB5n
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-08 more...
2 - P1027244
Josef Volf
Lidove Noviny 1905
P1027244
(8+9) C+
#2
1. Sf3! droht 2. Dh4#
1. ... Txf3 2. gxf3#

1. ... Dxd5 2. Db1#
1. ... Txd5 2. Dh7#
1. ... Txg2 2. Sxd2#
play all play one stop play next play all
F. Chlubna: Drei Modellmatts nach s. Selbstfesselungen, ein Rekord, der nicht mehr überboten wurde.
more ...
comment
Keywords: Brian Stephenson Collection (12127), Model mate (dreifach), selfpinning (dreifach), Pawn mate, pin-mate (dreifach), Rook sacrifice, Knight sacrifice, Task (Construction)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/K1pr4/2B2P2/p2R2B1/4k2N/6p1/qp1p1rP1/7Q
Reprints: 16a Das interessante Blatt 16/04/1914
87E Simple Two-move Themes 1924
Mate in two moves 1931
201 Chess Problems: Tasks and Records , p. 86, 1995
33 Versunkene Schätze , p. 24, 1998
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-09 more...
3 - P1029830
Renato di Vincenzi
Problemi di Scacchi Inediti 1998
P1029830
(6+5) C+
#2
1. Tf7! Txf7,Txd7 2. Sxe6#
1. ... Lxf7 2. Sh7# 1. ... Lh7 2. Sxh7#
1. ... Te8 2. Tg7#
1. ... e5 2. Tf5#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (14727), Zugzwang-Goal, Rook sacrifice, Knight sacrifice, Sacrifice key
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 5Nb1/3Nr3/4p2p/6kP/6P1/6K1/8/5R2
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-09-23 more...
4 - P1030913
Arthur Ford Mackenzie
British Chess Magazine 1892
P1030913
(10+7) C+
#3
1. Td1! droht 2. Sc5+ Sbxc5 3. Lf5#
1. ... Sxd6 2. De5+ Sxe5 3. Sc5#
1. ... Txd1 2. Sc7+ Lxc7 3. Lb3#
1. ... Kxd5 2. De4+ Kxe4 3. Se1# 2. ... Kxd6 3. Sc1#
1. ... Se5 2. Dxe5 Kd7 3. La4#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-05-04)
comment
Keywords: Brian Stephenson Collection (15815), Bishop sacrifice, Queen sacrifice, Blocknutzung, ambush key (T-S), Line opening, Sacrifice key, Knight sacrifice, Rook sacrifice, Drag-in sacrifice, Battery mates
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 2bb4/1n1n4/1P1Bk1P1/3N4/1P3Q2/3Np2K/2B5/1r3R2
Reprints: 94 Versunkene Schätze , p. 44, 1998
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-05-05 more...
5 - P1031282
Friedrich Köhnlein
Münchner Neueste Nachrichten 1907
P1031282
(8+8)
#3
1. Sa3? Ld3! 1. Se5? Tf2!

1. Th5! droht 2. Lc5
1. ... Lxh5 2. Sa3 Le2 3. Sc2#
1. ... Txh5 2. Se5 Tf5 3. Dd3# 2. ... Txe5 3. Lc5# 2. ... Le4 3. Se2#
play all play one stop play next play all
F.Chlubna: Der erste doppelte Römer mit gegenseitiger Verstellung der
schwarzen Themafiguren.
Henrik Juel: dual 1.Th5 Lf5 2.Txf5,Sa3 (2022-09-14)
comment
Keywords: Brian Stephenson Collection (16184), Flight taking, Sacrifice key, Rook sacrifice, Knight sacrifice, Blocknutzung (zweifach), Line closing, Römer (doppelt)
Genre: 3#
FEN: 1K6/3p3p/3B2b1/1p1P4/1PNk4/1Q4NR/7r/6br
Reprints: 72 Österreichische Schachrundschau 01/1924
168 Versunkene Schätze , p. 75, 1998
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-09-14 more...
6 - P1032406
Geza Erdös
Österreichische Schachzeitung 1953
3. ehrende Erwähnung
Informalturnier
P1032406
(10+8) C+
#3
1. Kf7! Lg6+ 2. Kg7 Lc3+ 3. Sdxc3# 2. ... exd5 3. Te5#
1. ... Kxd5 2. Lf3+ Kc5 3. Ld6#
1. ... exd5 2. Txf5 Kxf5 3. Sd6#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (17315), Provoked check, Knight sacrifice, Rook sacrifice
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: n7/7p/1p2pK2/1N1N1bR1/P3k2P/1P2p1B1/2PbB3/8
Reprints: 47 Problem-Palette , p. 19, 1970
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-08-11 more...
7 - P1055165
Hans Johner
Neue Zürcher Zeitung 1965
P1055165
(9+7)
#2
1. T5e2? Tde3!

1. Te3! droht 2. De5#
1. ... Tdxe3 2. Td2#
1. ... Tfxe3 2. Tf4#

1. ... Sxe3 2. Dh8#
1. ... bxa6 2. Db6#
1. ... Kxe3 2. De5#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2022-09-14)
comment
Keywords: Brian Stephenson Collection (40216), black self-obstruction, white self-obstruction, pin-mate, Sacrifice key, Rook sacrifice, Knight sacrifice, Blocknutzung
Genre: 2#
FEN: 1Q6/Kp1b4/N7/3BRp2/2Pk4/3r1r2/1Pn2R2/6B1
Reprints: 30 Kunstschach in der Schweiz , p. 25, 1980
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-09-13 more...
8 - P1220947
Maximilian Feigl
33(275) Die Schwalbe 106, p. 595, 10/1936
Olympia-Turnier
9. Preis
P1220947
(10+13) C+
#3
1. Sc7! droht 2. Df4+ Txf4 3. Sxd2# 2. ... Lxf4 3. Td4#
1. ... S5b3 2. Le2+ Txe2 3. Dd3# 2. ... Lxe2 3. Se5#
1. ... Lh3 2. g4 Txg4 3. Dd3# 2. ... Lxg4 3. Td4#
1. ... The4 2. Se5+ Txe5 3. Td4#
1. ... T1e4 2. Td4+ Txd4 3. Se5#
1. ... Txd1 2. Dxf7+ e6 3. Dxe6#
play all play one stop play next play all
more ...
comment
Keywords: Intersection Theme, vornehmer Nowotny, Holzhausen, Bishop sacrifice, Queen sacrifice, Knight sacrifice, Rook sacrifice
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 2KR4/4pp2/1pp1N2b/n4Q2/1Pk4r/P4NP1/1B1p1p2/n2Brb2
Reprints: VIII Saha Maksla 25/04/1937
63 Problem-Palette , p. 25, 1970
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2022-08-22 more...
9 - P1248473
Friedrich Chlubna
Main-Post 1968
2. Preis
P1248473
(5+13)
#5
1. Ld6? 0-0-0!

1. Te4! droht 2. Dg6+ Ke7 3. Txe5+ fxe5 4. Ld6+ Kd8 5. Dg8#
1. ... fxe4 2. Sxb5 cxb5 3. Ld6 0-0-0 4. Dxe4 ... 5. Da8#
play all play one stop play next play all
Henrik Juel: late dual 1.Te4 d5,d6 2.Ld6 Ta7 3.Dxa7 Kd8 4.De7,Dc7+ (2022-08-10)
comment
Keywords: Castling (s 0-0-0), Rook sacrifice, Knight sacrifice, Line opening
Genre: n#
FEN: r3k3/2Bp3Q/2p2p2/pp2pp2/R6b/N5pr/8/K6n
Reprints: 29 Problem-Palette , p. 13, 1970
Input: Felber, Volker, 2012-09-15
Last update: Dieter Berlin, 2022-08-10 more...
10 - P1331347
Hermann Rübesamen
Festschrift des Akademischen Schachklubs München 1911
P1331347
(7+12) C+
#6
1. Tf5! droht 2. Th5#
1. ... Td5 2. Tb5 Txb5 3. Tf3 Tb3 4. Sc3 Txc3 5. Tf5 Tc5 6. f8=D,T#
play all play one stop play next play all
Gerald Ettl: 4.-Tb5 ist ein völlig uninteressanter Verteidigungszug.
cooked ?? Für mich eine schöne und korrekte Aufgabe. (2017-02-14)
Henrik Juel: I agree completely, Gerald
4.Sc3 threatens 5.Th3, and 4... Tb5? does not prevent the threat, it just delays the mate by one move (2017-02-14)
Henrik Juel: The problem was reprinted in Die Schwalbe to commemorate the author's death a century earlier; here the dual after 4... Tb5 was not mentioned (but the immaterial promotion mate dual was...) (2017-02-14)
Dieter Berlin: Die sog. Verteidigung 4. ... Tb5? wird in keiner Quelle genannt oder moniert.
Einstweilig lösche ich diese, und 'cooked' ebenso. (2022-08-31)
more ...
comment
Keywords: Steering (perikritisch des sT), Preplan, Römische Lenkung (sT), Line closing, Rook sacrifice, Knight sacrifice, Promotion in the mating move (wT oder wD)
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 2b4k/1p1p1Pp1/1Rp2pP1/8/6P1/b2r1R1p/1p2N3/1Kn5
Reprints: 272 Versunkene Schätze , p. 119, 1998
Die Schwalbe 280, p. 534, 08/2016
Input: Felber, Volker, 2017-02-14
Last update: Dieter Berlin, 2022-09-01 more...
11 - P1403607
Friedrich Chlubna
Schweizerische Schachzeitung 1969
P1403607
(6+9) C+
#8
1. Sf2? exf2 2. Lxg5# 1. ... Dh7!

1. Tc3+! Kxb2 2. Tb3+ Kc1 3. Lb2+ Kb1 4. Lg7+ Kc1 5. Sf2 exf2 6. Lb2+ Kb1 7. Lf6+ Kc1 8. Lxg5#
play all play one stop play next play all
more ...
comment
Keywords: Preplan, Beugung, Checking key, Flight giving sacrifice key, Rook sacrifice, Knight sacrifice
Genre: n#
Computer test: SCHRECKE: Gustav 4.2a
FEN: r7/1q6/5B2/1p1p2b1/8/nR2p3/pR2K3/2kB3N
Reprints: 30 Problem-Palette , p. 13, 1970
Input: Dieter Berlin, 2022-08-10
Last update: Dieter Berlin, 2022-08-10 more...
12 - P1403662
Jan Kotrc
Zlata Praha 1908
2. ehrende Erwähnung
Informalturnier
P1403662
(7+7) C+
#3
1. Dg1! droht 2. Tf4
1. ... Lxd5 2. Dg7+ Ke4 3. Lf5#
1. ... Sd3 2. Te2+ Kxd5 3. Le6#
1. ... cxd5 2. Tf4 Kxf4 3. De3#
1. ... Kxd5 2. Tf4 Se2 3. Dg5#
play all play one stop play next play all
more ...
comment
Keywords: Flight-giving key (doppelt), Echo, Knight sacrifice, Drag-in sacrifice, Rook sacrifice
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/8/r1p5/p1PNk3/8/Kb5B/2pP1R2/2n4Q
Reprints: 129 Problem-Palette , p. 47, 1970
177 Versunkene Schätze , p. 80, 1998
Input: Dieter Berlin, 2022-08-14
Last update: Dieter Berlin, 2022-08-28 more...
13 - P1403698
Michael Szabo
Die Schwalbe 1944
3. Preis
Informalturnier Mehrzüger
P1403698
(9+10) C+
#4
1. Lc5! droht 2. Lxd4+ Kd6 3. Lxf6+ Txd3 4. e5#
1. ... Txd3 2. Le7 Tg6 3. Sf4 Kxf4 4. Ld6#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61, except for the double mate threat 1... Txd3 2.Le7 Tg6 3.Sf4 thr. 4.Sxd3,Sxg6# (2022-08-17)
comment
Keywords: Pawn mate (in der Drohung), Rook sacrifice, Drag-in sacrifice, Knight sacrifice
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 5B2/8/1KB2p2/1p2kP1N/1p1pP2P/b2Rpp1P/8/3r2r1
Reprints: 238 Problem-Palette , p. 83, 1970
Input: Dieter Berlin, 2022-08-17
Last update: Dieter Berlin, 2022-08-17 more...
14 - P1403831
Klaus Wenda
5058 Schach , p. 336, 11/1965
2. ehrende Erwähnung
Turnier 1965
des Deutschen Schachverbandes
P1403831
(8+8) C+
#4
1. Lf2? Se6! 2. Texe6 Lxf2! 2. Tfxe6 Dxf2!

1. Db3+! Kxa1 2. Tf2 Dxf2 3. Te1+ Dxe1 4. Ld4# 2. ... Lxf2 3. Ld4+ Lxd4 4. Te1#
play all play one stop play next play all
Korrektur der Auszeichnungen in SCHACH 03/1966, Seite 93:
Durch das Ausscheiden der inkorrekten Probleme ergibt sich nunmehr folgende endgültige Reihung:
Nr. 5051 P1407923 1. Preis
Nr. 5053 P1388116 2. Preis
Nr. 5054 P1407929 3. Preis
Nr. 5056 P1387754 4. Preis
Nr. 5057 P1407933 1. ehrende Erwähnung
Nr. 5058 P1403831 2. ehrende Erwähnung
Nr. 5059 P1407934 3. ehrende Erwähnung
Nr. 5061 P1407936 4. ehrende Erwähnung
Nr. 5062 P1407987 5. ehrende Erwähnung
Nr. 5063 P1407988 1. Lob
Nr. 5064 P1407989 2. Lob
Nr. 5068 P1407994 3. Lob
more ...
comment
Keywords: Plachutta, Checking key, Knight sacrifice, Rook sacrifice, Bishop sacrifice
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 4RnK1/B4P2/5R2/p7/8/Q5b1/3P2bp/Nk3nq1
Reprints: 278 Problem-Palette , p. 97, 1970
Input: Dieter Berlin, 2022-08-23
Last update: Felber, Volker, 2023-02-28 more...
15 - P1403991
Georg Schories
Tägliche Rundschau 1921
P1403991
(8+11) cooked
#5
1. Tg1! f5 2. Txe5 Txe5 3. Txg5 Txg5 4. Sf7 Te7 5. Sxg5# 2. ... Txd6 3. Tg3+
play all play one stop play next play all
Cook: 1. Lb4
Henrik Juel: dual 2.Txe5,Lb4
cook 1.Lb4 thr. 2.Tg2 thr. 3.Lc5 thr. 4.Se1# and 3.Se1+ Ke3 4.Lc5 (2022-09-01)
milan: +sBb6 M.Frelih (2022-10-29)
comment
Keywords: Intersection Theme, Rook sacrifice (doppelt), Knight sacrifice
Genre: n#
FEN: 8/5pn1/b2Nr1r1/3Rp1p1/5pR1/3P1k1B/2N1p3/1nK1B3
Reprints: 324 Das schwarze Schnittpunktgefüge [Klinke] , p. 150, 1924
Input: Dieter Berlin, 2022-09-01
Last update: Dieter Berlin, 2022-09-01 more...
16 - P1404021
Jaques Fulpius
La Tribune de Geneve 1981
3. Preis
P1404021
(10+10) C+
#2
1. f7? fxg4! 1. Sd3? dxc3!

1. Sa4! droht 2. Sc5#
1. ... dxc4 2. Db7#
1. ... dxc3 2. Sxc3#
1. ... d3 2. cxd3#
1. ... f2 2. Lg2#
1. ... Lg3 2. Sf2#
1. ... fxg4 2. Dh7#
play all play one stop play next play all
more ...
comment
Keywords: Entblockung (sechsfach), Rook sacrifice, Knight sacrifice
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: K7/Q7/5P2/3pppp1/2PpkbNR/2R1pp1B/bNP5/8
Reprints: 26 Schweizer Schachkompositionen 1976-1986 , p. 15, 1989
Input: Dieter Berlin, 2022-09-03
Last update: Dieter Berlin, 2022-09-04 more...
17 - P1404096
Andreas Schönholzer
Israel Ring Tourney 1982
2. ehrende Erwähnung
P1404096
(7+12)
#2
1. Te3? droht 2. Td4#,Se4# 1. ... Txe3 2. Td4# 1. ... Lxe3 2. Se4# 1. ... Sf4!

1. Se3! droht 2. Dxc5#,Te6# 1. ... Txe3 2. Dxc5# 1. ... Lxe3 2. Te6#
1. ... Sxe5 2. Td4# 1. ... fxe5 2. Se4#
play all play one stop play next play all
Henrik Juel: dual 1.Se3 b4 2.Sc4,Te6# (2022-09-07)
comment
Keywords: Changed mates, transferred mates, vornehmer Nowotny (-Auswahl), Knight sacrifice, Rook sacrifice
Genre: 2#
FEN: 3K4/4p2b/2pk1pn1/1pp1R3/R5Nn/Q1p3N1/B7/4r1b1
Reprints: 92 Schweizer Schachkompositionen 1976-1986 , p. 37, 1989
Input: Dieter Berlin, 2022-09-06
Last update: Dieter Berlin, 2022-09-06 more...
18 - P1404114
Peter Jaeger
3604 Neue Zürcher Zeitung 04/03/1983
1. ehrende Erwähnung
P1404114
(8+10) C+
#3
1. Sd4! droht 2. De8+ Sxe8 3. Te6#
1. ... Lxe3 2. Sc3+ Kxd4 3. Tc6# 2. ... Ke5 3. Sc6#
1. ... Sxe3 2. Tf4+ Lxf4 3. Sc3#
1. ... Txe3 2. Te6+ Sxe6 3. De5#
1. ... Lxf6 2. Dxf6
play all play one stop play next play all
more ...
comment
Keywords: Knight sacrifice, Rook sacrifice, Queen sacrifice (Drohung), Batteriematt diagonal
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 7Q/2n4K/2N2Rpp/3N2b1/2B1k3/1p2P1r1/p1p4B/5n2
Reprints: 154 Schweizer Schachkompositionen 1976-1986 , p. 59, 1989
Input: Dieter Berlin, 2022-09-07
Last update: Dieter Berlin, 2022-09-08 more...
19 - P1404148
Peter Jaeger
3694 Neue Zürcher Zeitung 23/11/1984
P1404148
(8+9) C+
#3
1. Ld7? Dc5! 1. Td3? Sxd3! 1. Tf1? Tb3!

1. Tdd4! droht 2. Se3#
1. ... Da3 2. Td3 Da7 3. Txf3# 2. ... Dxd3 3. Se7#
1. ... Tb3 2. Se7+ Dxe7 3. Td5#
play all play one stop play next play all
more ...
comment
Keywords: Threat correction, Focus, pin-mate, Knight sacrifice, Rook sacrifice
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 2B5/q4p2/4pN2/1n1N1k1P/4R2B/5p1K/b7/1rnR4
Reprints: 160 Schweizer Schachkompositionen 1976-1986 , p. 61, 1989
Input: Dieter Berlin, 2022-09-08
Last update: Rainer Staudte, 2022-09-08 more...
20 - P1404540
Martin Wolfgang Hoffmann
764 Die Schwalbe 16, p. 401, 10/1972
P1404540
(7+6) C+
#3
1. Se5? Tb4!

1. Sd4! droht 2. Sxc6
1. ... Txd4 2. Tg8+ Lxg8 3. Tb8#
play all play one stop play next play all
more ...
comment
Keywords: Sacrifice key, Knight sacrifice, Rook sacrifice, Line opening, pin-mate
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: k7/pRK1p3/P1n5/2Pb4/4r3/5N2/6R1/7B
Reprints: 92 Kunstschach in der Schweiz , p. 55, 1980
Input: Dieter Berlin, 2022-09-21
Last update: Dieter Berlin, 2022-09-22 more...
21 - P1404637
Werner Sidler
Schweizerische Schachzeitung 1969
Problemfreund Ed. Schlatter gewidmet
P1404637
(7+5) C+
#4
1. Sd8! droht 2. Sc6#
1. ... Tf6 2. Le6 T8xe6 3. Sc6+ 2. ... T6xe6 3. Te4+
1. ... Txd8 2. La6 Tb8 3. Te4+ Txe4 4. Sf3#
play all play one stop play next play all
more ...
comment
Keywords: Plachutta, Sacrifice key, Knight sacrifice, Bishop sacrifice, Rook sacrifice, Blocknutzung
Genre: n#
Computer test: SCHRECKE: Gustav 4.2a
FEN: 2B1r3/5Nn1/8/2p5/2Pk1r2/8/2KN1P2/4R3
Reprints: 171 Kunstschach in der Schweiz , p. 95, 1980
Input: Dieter Berlin, 2022-09-24
Last update: Dieter Berlin, 2022-09-24 more...
22 - P1404672
Jaques Fulpius
? 1977
Lob
Johner-Memorial 1977
P1404672
(6+10)
#5
1. h7? Txh7! 1. b7? Ta1! 2. h7 Lc4+ 3. Kb8 e5!

1. Tg4! fxg4 2. Sh4 Txh4 3. b7 Lxb7 4. h7 Txh7 5. Df8#
play all play one stop play next play all
Henrik Juel: dual 1. Tg4! fxg4 2. Sh4 Txh4 3. b7 Lf6 4.Dxf6+,h7 (2022-09-26)
comment
Keywords: Sacrifice key, Rook sacrifice, Line closing (sL,sB), Knight sacrifice, Blocknutzung
Genre: n#
FEN: 7k/K4Q2/bP1pp2P/2p2p2/5R2/3p1n2/1b4N1/7r
Reprints: 199 Kunstschach in der Schweiz , p. 111, 1980
Input: Dieter Berlin, 2022-09-26
Last update: Dieter Berlin, 2022-09-26 more...
23 - P1404698
Hans Rosset
Die Welt 1976
P1404698
(5+5) C+
#4
1. Ta1+? Txa1 2. Sc4 Ta2!
1. Tee3? Tc1+ 2. Sc4 Tc3!

1. Te2! Th2 2. Ta2+ Txa2 3. Sc4
1. ... Tc1+ 2. Sc4 Txc4+ 3. Kxc4
play all play one stop play next play all
more ...
comment
Keywords: Steering, Rook sacrifice, Zugzwang-Goal, Knight sacrifice
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/2p5/2p5/2K1N3/kP4p1/6R1/8/4R2r
Reprints: 169 Kunstschach in der Schweiz , p. 95, 1980
Input: Dieter Berlin, 2022-09-27
Last update: Dieter Berlin, 2022-09-27 more...
24 - P1404864
Jan Kotrc
Aftonbladet 1907
Ehrende Erwähnung
P1404864
(5+9) C+
#3
1. Lc4! Dxh1 2. Sf4+ exf4 3. Lf7#
1. ... Lxc4 2. Db7
1. ... Sxc4 2. De4+
1. ... Db3 2. Th8 Kf5 3. Dh7#
play all play one stop play next play all
more ...
comment
Keywords: Räumung and Bahnung, Knight sacrifice, Queen sacrifice, Rook sacrifice, Bishop sacrifice
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 5K2/8/b3Npk1/4p2R/1p1p2p1/4n3/8/3q1B1Q
Reprints: 164 Versunkene Schätze , p. 73, 1998
Input: Dieter Berlin, 2022-10-04
Last update: Dieter Berlin, 2022-10-04 more...
25 - P1404865
Jonas Ephraim Cauveren
Tijdschrift van den NSB 1907
P1404865
(7+5) C+
#3
1. Lc8! Lxb8 2. Ta4+ Kb6 3. Ta6# 2. ... Sxa4 3. b4# 2. ... bxa4 3. Dxc5#
1. ... e3 2. Dc4 bxc4 3. Sc6#
1. ... Kb6 2. Ta4 bxa4 3. Db4#
1. ... Sb7 2. Sc6+ Ka6 3. Dxa7#
play all play one stop play next play all
more ...
comment
Keywords: Zugzwang-Goal, Knight sacrifice, Rook sacrifice, Queen sacrifice, Line closing
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1N6/b7/3P4/kpn5/1R1Qp3/7B/1P6/6K1
Reprints: 163 Versunkene Schätze , p. 73, 1998
Input: Dieter Berlin, 2022-10-04
Last update: Dieter Berlin, 2022-10-04 more...
26 - P1404866
Carl Behting
Tägliche Rundschau 1905
P1404866
(7+4)
#3
1. Sa6! droht 2. Dxa5+ Sxa5 3. Tb4#
1. ... Lxb5 2. Dh4 Ld3 3. Lc6# 2. ... Sc1 3. Lc2#
1. ... Kxb5 2. Dd7+ Kxa6 3. Db7# 2. ... Kc4 3. Da4#
play all play one stop play next play all
Henrik Juel: double threat 2.Dxa5+,Lxd3, many duals and mate duals (2022-10-04)
Ulrich Voigt: Ist eine Drohung, die aufgrund von Zugzwang nie verwirklicht werden kann, tatsächlich eine Drohung? Es gibt keinen schwarzen Zug, nach dem 2. Lxd3 zum Ziel führt. Kann man in einer solchen Situation überhaupt von der Drohung 2. Lxd3 sprechen?

Die einzige "echte" Drohung ist 2. Dxa5, und nach den beiden Paraden 1... Kxb5 oder 1... Lxb5 findet Popeye keinerlei Duale oder Mattduale. (2022-10-05)
Henrik Juel: I agree that 2.Lxd3 is a threat only in a formal sense, Ulrich
If you disregard it as a threat, the problem is OK (2022-10-05)
Mario Richter: Can somebody please explain in what sense this is a "Zugzwang Goal"-Problem? (2022-10-06)
Dieter Berlin: Zugzwang-Goal wird bei Eingabe als Zugzwang-Ziel bezeichnet. Diese Bezeichnung hat m. E. den Vorteil, dass Zugzwang nicht direkt nach dem Schlüssel vorliegen muss wie in 'alten Zeiten', sondern wie in diesem Fall der Weiße auf Zugzwang nach dem 2. Zug Dh4! hingearbeitet hat. (2022-10-07)
Mario Richter: Dieter, bist Du sicher, daß Deine Interpretation von "Zugzwang-Ziel" mit der PDB-Definition übereinstimmt? Wenn ja, was ist dann bei Dir das "X"? (2022-10-08)
comment
Keywords: Zugzwang-Goal, Rook sacrifice, Knight sacrifice
Genre: 3#
FEN: 3Q4/2N5/3P4/pR6/k3B3/1n1b4/1P5K/8
Reprints: 159 Versunkene Schätze , p. 72, 1998
Input: Dieter Berlin, 2022-10-04
Last update: Dieter Berlin, 2022-10-04 more...
27 - P1405716
Wieland Bruch
Der Tagesspiegel 16/02/1992
P1405716
(6+6) C+
#2
1. Sc3! droht 2. Te4#
1. ... Lxf3 2. Sb5#
1. ... Sxf3 2. Sxe2#
1. ... dxe6 2. Sxc6#

1. ... Txc3 2. Tf4#
1. ... Se5 2. Td6#
1. ... Ld3 2. Txd3#
play all play one stop play next play all
more ...
comment
Keywords: Rook sacrifice (doppelt), Deckungsverlust, Knight sacrifice, Sacrifice key, Blocknutzung (zweifach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/3p4/1Kn1R3/8/1N1kN3/1P3R2/4b3/2r3n1
Reprints: 89 Problemschach-Jahrbuch 1992 D , p. 50, 1992
Input: Dieter Berlin, 2022-11-08
Last update: Dieter Berlin, 2022-11-09 more...
28 - P1406175
Hermann Weissauer
Die Rheinpfalz 1967
P1406175
(5+7) C+
#3
1. Te5! droht 2. Texd5#
1. ... Kxc5 2. Dc4+ Kxd6,Kb6 3. Dc7#
1. ... Kxe5 2. Dxe4+ Kxd6,Kf6 3. De7#
play all play one stop play next play all
more ...
comment
Keywords: Flight giving sacrifice key, Rook sacrifice, Symmetrical end position, Knight sacrifice
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 3KR3/8/p2N2p1/2Rp4/3kp3/8/4Q3/3r3n
Reprints: D8 Knobeln Sie auch gern? [Pachl] , p. 30, 2009
Input: Dieter Berlin, 2022-11-26
Last update: Dieter Berlin, 2022-11-26 more...
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