Problem Solving World Championship












(1) Heathcote,G
9th Hm, Olympic Tourney, 1948
[Nunn,John]

1.Rf6 -- [1...Nxf6 2.Qc7 -- (2...d6 3.Qa5# ; 2...Ne4 3.Bc4# ) 3.Qc5# ; 1...d6 2.Qe2 Bxe2 3.Rf5# ; 1...Be6 2.Nc2 ] 2.Rb6 d6 [2...Kxd4 3.Rd6# ] 3.Rb5# *













(2) Bazlov,Y
5.p Gusev JT, 1994
[Nunn,John]

EG#10825 1.Ra2+ Kb3 2.Bd1+! Kc3 [2...Kc4 3.Be2+ Kb3 4.Rb2+ Ka3 5.Bd1 Qg8 6.Nd4 gives White decisive threats.] 3.Be2! Qb7+ [3...-- 4.Rc2+ Kb3 5.Bc4+ Ka4 6.Ra2# ] 4.Kc1 Qb3 5.Bc4! Qa4! [5...Kxc4 6.Nxa5+ ; 5...Qxc4 6.Rc2+ Kb3 (6...Kd3 7.Ne5+ ) 7.Nxa5+ ] 6.Ne5! [6.Rxa4? ] 6...Qe8! [6...Qb4 7.Rc2+ Kd4 8.Nc6+ ] 7.Rc2+ Kd4 [7...Kb4 8.Nd3+ Ka3 9.Ra2# ] 8.Nf3+ Kc5 [8...Ke3 9.Re2+ ] 9.Bf7+ 1-0













(3) Sobrecases,G
Original for diagrammes, 2010

1.Bh4 Kxe3 2.Bxg5+ Kd4 3.Bh4 Bh6 4.Bg5 Kc3 5.Bc1 Bd2 6.Bxb2# *













(4) Sobrecases,G
Original for diagrammes, 24.10.2010

1.Be1 Rd4 2.exd4 Ke3 3.d5 Kd4 4.dxc6 Rd5 5.Kb4 Be3 6.Bc3# *













(5) Richter,F
Original for MatPlus 2011, 24.10.2010
[Nunn,John]

1.Rd4 Bxf3 2.Bh8 Bg4 3.Nd8 bxc4 [3...-- 4.Nd6+ Kxe5 5.Rg5+ Bf5 6.Rxf5+ exf5 7.f7+ Rg7# ] 4.Nf7 -- 5.Nh6+ Kxe5 6.Rg5+ Bf5 7.Ng4+ Rxg4# *



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