White to play and checkmate in two moves
1729
(Abram L'vovich Dzekcer - «64», 15 Jan 1971)
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1. Qe8! [2. Qxh5#]
1. ... hxg4 2. Qh8#
1. ... Kxg4 2. Qe4#
1. ... Bxg4 2. Qe1#
Date added: 19/1/2022
1730
(Florea Vecu - Revista Romana de Sah, Feb 1982)
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1. Qc4! [2. Qd5, Nc6#]
1. ... c6, Nf4, Qb3, Bxc4 2. N(x)c6#
1. ... d5 2. Qxd5#
1. ... Ne7 2. f4#
1. ... Qxc4 2. Nf3#
1. ... Qa5 2. Nc6/f3#
1. ... Qxd4 2. Qe6#
Date added: 19/1/2022
1731
(John Möller - Mitteldeutsche Zeitung, 1935)
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1. Nb2! [2. Nd3#]
1. ... Bxd5+ 2. Nxd5#
1. ... Nc4 2. Rxf5#
1. ... Nd4 2. Bg5#
Date added: 20/1/2022
1732
(Sergej Prokof'evich Pushkin - Hlas ľudu, 1976)
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1. Qa1! waiting
1. ... g1=Q/R 2. Qh8#
1. ... g1=B 2. Nf1, Qe5/h8#
1. ... g1=N 2. Nf1, Qe5#
1. ... Kg1 2. Bg3#
compare to #1733 and 1734 and 1735
Date added: 20/1/2022
1733
(Sergej Prokof'evich Pushkin - Hlas ľudu, 1976)
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1. Qa7! waiting
1. ... g1=Q/R 2. Qh7#
1. ... g1=B 2. Qh7, Nf1#
1. ... g1=N 2. Nf1#
1. ... Kg1 2. Rh3#
compare to #1732 and 1734 and 1735
Date added: 20/1/2022
1734
(Sergej Prokof'evich Pushkin - Hlas ľudu, 1976)
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1. Qa1! waiting
1. ... g1=Q/R 2. Qh8#
1. ... g1=B 2. Nf1, Qe5/h8#
1. ... g1=N 2. Nf1, Qe5#
1. ... Kg1 2. Bg3#
compare to #1732 and 1733 and 1735
Date added: 20/1/2022
1735
(Sergej Prokof'evich Pushkin - Hlas ľudu, 1976)
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1. Qc4! waiting
1. ... g1=Q/R 2. Qh4#
1. ... g1=B 2. Qf4/h4, Nf1#
1. ... g1=N 2. Qf4, Nf1#
1. ... Kg1 2. Nf3#
compare to #1732 and 1733 and 1734
Date added: 20/1/2022
1736
(Herbert Siegfried Oskar Ahues - Canadian Chess Chat, 1983)
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1. Rb4! [2. Qd4#]
1. ... Ba6 2. Nd7#
1. ... Nc6/b5 2. R(x)b5#
1. ... fxg6 2. Nxg6#
1. ... Nf3 2. Re4#
1. ... Bc3 2. Qxc3/d6#
1. ... Bxb4 2. Qd4#
Date added: 20/11/2022
1737
(Alfred Karlström - Norsk Sjakkblad 1 Jan 1935)
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1. Nc4! [2. Ne3#]
1. ... Nxe6 2. Qxe6#
1. ... c6+ 2. Re5#
1. ... c5+, Qc5 2. Rd6#
1. ... Qxc4 2. Qd7#
1. ... Kxc4 2. Rc6#
1. ... Bxc4 2. Qf3#
Date added: 20/11/2022
1738
(Gyorgy Ballo - Magyar Sakkvilág, 1 Dec 1926)
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1. a3! waiting
1. ... b5 2. Qc2#
compare to #1739
Date added: 20/11/2022
1739
(Gyorgy Ballo - Magyar Sakkvilág, 1 Dec 1926)
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1. b5+!
1. ... Kc5 2. Qb4#
compare to #1738
(This position occurs after the key move of previous problem #1738 )
Date added: 20/11/2022
1740
(Herbert Siegfried Oskar Ahues - Freie Presse, 5 Oct 1990)
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1. Ne2! [2. Qf4#]
1. ... f4 2. Nc5#
1. ... Nh3 2. cxd3#
Date added: 20/1/2022