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12 problem(s) found in 2941 milliseconds (displaying 12 problem(s)). [COMMENTDATE>=20200919 AND G='2#' AND K='Schlüssel = Eckzug'] [download as LaTeX]

1 - P1167378
Ladislav Salai
4138 Problem 194-197 12/1979
P1167378
(6+1)
#2
1. Dh8
play all play one stop play next play all
A14DB
SCHRECKE: C+, popeye 4.87
1.Dh8! (Zugzwang)
1. ... K:d7,K:f7 2.e8D#
1. ... K:e7 2.De8#
1. ... Kd5 2.De5# (2022-07-25)
comment
Keywords: Miniature Collection (0312222), Rex solus (s), Miniature, Schlüssel = Eckzug
Genre: 2#
FEN: 4Q3/3PPN2/4k3/6K1/8/8/8/2R5
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2022-07-25 more...
2 - P1380169
Vasily I. Chernykh
37 64-Shakhmatnoe obozreniye 05/2020
P1380169
(5+1) C+
#2
1. Tc8? Kd7 2. Dh3# 1. ... Kf7!
1. Tg8? Kf7 2. Dd5# 1. ... Kd7!

1. Da8! Kf7 2. Dg8#
1. ... Kd7 2. Dc8#
1. ... Kf5 2. De4#
play all play one stop play next play all
more ...
comment
Keywords: Rex solus (s), Schlüssel = Eckzug, corner to corner (D), Miniature
Genre: 2#
Computer test: Popeye 4.61
FEN: 7R/4B3/3Pk3/8/8/3K4/8/7Q
Input: Rainer Staudte, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-23 more...
3 - P1402349
Wilhelm E. Jensen
6 Jemtlands Tidning 31/10/1885
P1402349
(5+7) C+
#2
1. Da1! (Zugzwang)
1. ... Lf2 2. Dg7#
1. ... La5,Lb4,Lc3,Ld2 2. Dg1#
1. ... f2 2. Dg7#
1. ... Kf2 2. Dxe1#
1. ... Kg4 2. Dg7#
play all play one stop play next play all
zum Autor heißt es in 'Jemtlands Tidning': W. Jensen, Köpenhamn
SCHRECKE: C+, popeye 4.87 (2022-06-30)
comment
Keywords: Schlüssel = Eckzug, Zugzwang-Goal
Genre: 2#
Computer test: popeye 4.87
FEN: 8/8/2p5/2p2P1p/2K2p1N/5pk1/1Q6/4b2R
Input: Mario Richter, 2022-06-30
Last update: Dieter Berlin, 2022-07-02 more...
4 - P1402583
Roman Fedorovich (Zalokotsky)
131 Smena (Moskwa) 12/1997
P1402583
(4+3)
#2
1. Dh1! droht 2. Da8#
1. ... Dxh1 2. Txh1#
1. ... Dh2 2. Dxh2#
1. ... Dh7 2. Dxh7#
1. ... Dh6+ 2. Dxh6#
1. ... Dh5 2. Dxh5#
1. ... Dh4+ 2. Dxh4#
1. ... g3 2. Dxh3#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2022-07-09)
comment
Keywords: Schlüssel = Eckzug, Sacrifice key, Pinning, corner to corner (d), Miniature
Genre: 2#
FEN: 7k/6R1/5K2/8/6p1/7q/8/5RQ1
Input: Mario Richter, 2022-07-09
Last update: Gunter Jordan, 2022-07-09 more...
5 - P1405767
György Bakcsi
688 Neue Osnabrücker Zeitung 20/06/1992
P1405767
(9+6) C+
#2
1. Dh8! droht 2. Sxd6#
1. ... Sxe4 2. Dd8#
1. ... Sf5 2. Sc5#
1. ... Sxc4 2. Sc3#
1. ... Kd3 2. Sc5#
1. ... Te1 2. Td2#
play all play one stop play next play all
more ...
comment
Keywords: pin-mate, discovered checkmate, Deckungsverlust, Batterienutzung, mehrfache, Schlüssel = Eckzug
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: n2Q4/4pP1B/3n4/4p3/1KPkNR2/8/1R3P2/3r4
Reprints: 160 Problemschach-Jahrbuch 1992 D , p. 80, 1992
Input: Dieter Berlin, 2022-11-11
Last update: Dieter Berlin, 2022-11-11 more...
6 - P1408272
Knud H. Hannemann
Skakbladet 1919
P1408272
(3+2)
#2
1. Da1
play all play one stop play next play all
Henrik Juel: dual efter 1... Se3,Se7,Sd6 (2023-03-15)
comment
Keywords: Aristocrat, Minimal (s), Schlüssel = Eckzug
Genre: 2#
FEN: 5N2/8/8/5n1k/Q4K2/8/8/8
Reprints: 18 The Problemist 28-11, p. 450, 09/2022
Input: Felber, Volker, 2023-03-15
Last update: Gunter Jordan, 2023-03-16 more...
7 - P1409837
? ?

P1409837
(4+3)
#2
1. Da8! (Zugzwang)
1. ... Kg4 2. Dg2#
1. ... Kg6 2. Dg8#
1. ... Ld1,Le2,Lf3,Lg4 2. Dg8#
1. ... Le8,Lf7,Lg6 2. Dg2#
play all play one stop play next play all
beim Nachdruck in den 'Straßburger neuesten Nachrichten' falsch wLh5; außerdem war dem Blatt der "Verfasser unbekannt" - eine Bitte an die Leserschaft, entsprechende Informationen berreitzustellen, blieb erfolglos.
Henrik Juel: C+ Popeye 4.61 (2023-05-19)
comment
Keywords: Miniature, Schlüssel = Eckzug
Genre: 2#
FEN: 8/8/4P2p/4K1kb/8/8/7R/7Q
Reprints: 18 Straßburger neueste Nachrichten 04/05/1941
Input: Mario Richter, 2023-05-19
Last update: Gunter Jordan, 2023-05-19 more...
8 - P1410539
Claus Grupen
3596 Kieler Nachrichten 06/2001
P1410539
(8+8)
#2
1. Da8! droht 2. Sc6#
1. ... Sb4 2. f4#
1. ... Lxd4 2. Sxd3#
1. ... Kxd4 2. Da1#
1. ... Le8 2. Sf3#
1. ... f5 2. Dh8#
1. ... exd5 2. Dxd5#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 alxo (2023-06-26)
udo.de: steingetreu vorweggenommen durch D.M. Howard, Problem Observer, 3, Mai 2000 (2023-06-27)
comment
Keywords: Block, corner to corner (D), Square vacation, Line opening, Schlüssel = Eckzug
Genre: 2#
Computer test: Gustav 4.1 a
FEN: 8/2p5/2Qppp2/2bBk2b/3NP3/3n2K1/5P2/2NR4
Input: Gunter Jordan, 2023-06-26
Last update: Rainer Staudte, 2023-06-26 more...
9 - P1410580
Eduard Nagovitsyn
8568 Kudesnik 258 2023
P1410580
(5+2)
#2
b) sLd1->a5
a) 1. Ta1? droht 2. b7#
1. ... Lf3 2. Lb8#
1. ... La4!

1. Lb8! droht 2. b7#
1. ... Lf3 2. Ta1#

b) 1. Lb8? droht 2. b7#
1. ... Lxb6!

1. Ta1! Le1,L~ 2. b7#
1. ... Lxb6 2. Lxb6#
play all play one stop play next play all
SCHRECKE: a)+b): C+, popeye 4.87 (2023-06-29)
comment
Keywords: Reversal 1, Minimal (l), Miniature, Schlüssel = Eckzug (in b)
Genre: 2#
FEN: k1K5/B7/1P2P3/8/8/8/8/2Rb4
Input: Rainer Staudte, 2023-06-29
Last update: Gunter Jordan, 2023-06-29 more...
10 - P1411276
Kabe Moen
SS029 The Hopper Magazine I02 25/06/2022
P1411276
(10+6) C+
#2
b) sKd3<->wBe3
a) 1. Db8! droht 2. Db3#
1. ... Kxe3 2. Dg3#
1. ... Td6 2. Sc1#

b) 1. Dh8! droht 2. Dh3#
1. ... Kxd3 2. Dc3#
1. ... Sf4 2. Sf1#
play all play one stop play next play all
more ...
comment
Keywords: Schlüssel = Eckzug (in b), Twin
Genre: 2#
Computer test: a)+b): C+, popeye 4.87
FEN: 3Q4/3RRp2/2p1r3/2pn4/2P3B1/3kP3/1K1NN3/4B3
Input: Rainer Staudte, 2023-07-27
Last update: A.Buchanan, 2023-07-27 more...
11 - P1411629
Petrasin Petrasinovic
8590 Kudesnik 259 29/07/2023
P1411629
(6+1)
#2
b)-Bg2 alles eine Linie nach rechts
a) 1. Db3? Ke4 2. Dd3#
1. ... Kg4 2. Dh3#
1. ... Kf6 2. Df7#
1. ... Kxg6!

1. Dh8! Ke4 2. De5#
1. ... Kg4 2. Dh3#
1. ... Kxg6 2. Ld3#
1. ... Ke6 2. De5#

b) 1. Lf2? Kg6 2. Dg7#
1. ... Kf4!

1. Lc7? Kg6 2. Dg7#
1. ... Kh4!

1. Dd4? Kxh6 2. Dg7#
1. ... Kg6 2. Dg7#
1. ... Kh4!

1. Dc3! Kf4 2. De3#
1. ... Kh4 2. Ld8#
1. ... Kxh6 2. Dg7#
1. ... Kg6 2. Dg7#
play all play one stop play next play all
SCHRECKE: a)+b): C+, popeye 4.87 (2023-08-06)
comment
Keywords: Miniature, Twin, Rex solus (s), Schlüssel = Eckzug (in a), Flight giving sacrifice key, Changed mates
Genre: 2#
FEN: 4K1Q1/8/B5N1/5k2/5P2/8/6P1/8
Input: Rainer Staudte, 2023-08-06
Last update: Gunter Jordan, 2023-08-06 more...
12 - P1414200
Yuri M. Alekseev
38 64-Shakhmatnoe obozreniye 05/2023
P1414200
(5+2)
#2
1. Db6? Kc4 2. Dd4#
1. ... Ka3 2. Da5#
1. ... Ka4!

1. Dc2? Ka3 2. Db3#
1. ... Ka5!

1. Dc1? Ka5 2. Da3#
1. ... Ka4!

1. Sc3? Ka5 2. Dxb5#
1. ... Ka3!

1. Da8! Kc4 2. De4#
1. ... Ka3,Ka4,Ka5 2. Lc5#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-12-27)
comment
Keywords: Changed mates, Minimal (b), Miniature, Schlüssel = Eckzug
Genre: 2#
FEN: 8/B7/2Q5/1p6/1k6/8/4N3/NK6
Input: Rainer Staudte, 2023-12-27
Last update: Gunter Jordan, 2023-12-29 more...
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The problems of this query have been registered by the following contributors:

Zuncke/Bruder (1)
Rainer Staudte (5)
Mario Richter (3)
Dieter Berlin (1)
Felber, Volker (1)
Gunter Jordan (1)