10th ISC – Problems with Solutions – Category 1

10th International Solving Contest (ISC)
26th January, 2014

Category 1 – Problems and Solutions

1
#2		 John J. O’KEEFE
William J. SMITH

1st Pr. The Good Companion 1917

1… Sd3/Sb~/d5+ 2.Bg2/Rd4/Sc5 #

1.Rf2![5] [2.Qe6#]
1… Sd3,Sf3 2.Q(:)f3#
1… d5+ 2.Qe7#
1… Sb~ 2.Qd4#
1…Kd5 2.Qf5#
1…Ke3 2.Rf4#
2
#3		 Volodea VAISMAN

 

Problem 1960

1.Qg6! (2.Sc5 [1] (3.Q:e6#))
1… ed6 2.Kg3 [1] (3.Q:e6#) B:e5+/Re7 3.Rf4/Sb6#
1… Bc4 2.Kg1 [1] (3.Q:e6#) Bd4+ 3.Re3#
1… Bd4 2.Kf1 [1] (3.Q:e6#) Lc4+ 3.Te2 #
1… B:e5 2.Rd4+ [1] K:d4/Ld4: 3.Qd3/Q:e6#
3
#5		 Herbert ENGEL
Comm. Rochade 1980-81

1.Bh7! h4 2.Rh5 h3 3.Bh6 K:e5 4.g6+ [5] K:e4 5.g7 #
4
+		 Vladimir KLYUKIN
5th HM Vecherny Kiev 1965

1.g7 a1Q 2.gh8B [1] (i) Q:h8 3.Sg7 Ke7 4.Ka8! [+1] (ii) K:f8 5.Se6+ [+1] Ke7+ 6.b8Q Q:h7 7.Qc7+ [+1] Ke8 8.Qd8+ [+1] Kf7 9.Sg5+ +-

(i) (2.gh8Q? Qe5+! 3.Q:e5 stalemate)
(ii) (4.Ka7? K:f8 5.Se6+ Ke7 6.b8Q Q:h7! 7.Qc7+ Ke8! 8.Q:h7 stalemate)
5
h#5 2 sol.		 Miomir NEDELJKOVIĆ
Probleemblad 2004

1.Qf3 R:g7 2.Rd4+ Kg5 3.Sf4 Kf6 4.Kd5 Rg5+ 5.Ke4 Re5# [2.5]
1.Se5 R:b7 2.g5 Kh6 3.Kd5 Kg7 4.Ke6 Rb6+ 5.Kf5 Rf6# [2.5]
6
s#3		 Petko A. PETKOV
5th Pr. Schach-Echo 1974

1.Rh2! (2.Qf3+ K:f3 3.Sg5+ [1] hg5#)
1… Be1+ 2.Bg3+ K:e3 3.Qf4+ [1] R:f4#
1… Be3 2.Qg2+ K:f4 3.Qf3+ [1] K:f3#
1… Sd4 2.Be5+ K:e3 3.Sf5+ [1] S:f5#
1… Se6 2.Q:e6+ Kf3 3.Sg5+ [1] hg5#
7
#2		 Eriks LAZDINS
2nd Pr. Shakhmaty 1958

1.Sfe7? Bf5! 1.Sde7? Se4!
1.Sb4! [5] (2.Bd3#)
1… Se4 2.Qa2#
1… Se5 2.Sd6#
1… Sc5 2.Se3#
1… Bf5 2.Bd5#
8
#3		 Milan LEGIŠA
Sinfonie Scacchistiche 1980

1.Rb8! (2.Qe5+ [1] de5 3.Rd8#)
1… S:d4 2.S:c3+ [1] Kc5 3.Qa7#
1… Bc8 2.Se3+ [1] R:e3 3.c4#
1… e3 2.Bf3+ [1] Ke6 3.Re8#
1… c5 2.Qf7+ [1] Kc6/K:d4 3.d5/Bg7#
9
#4		 Yehuda LUBTON
Die Schwalbe 1993

1.Bf2! (2.Rf6+ Kg4 3.Se5+ [1.5] K:h5 4.Sg7#)
1… Bc3 2.Rg5+ K:e6 3.Bd5+ [1.5] K:d6 4.B:c5#
1… Re4 2.Sg7+ K:f4 3.Bg3+ [1.5] Ke3 4.Sf5#

All three lines [5]
10
+		 Sergiy DIDUKH
original (for Robert Brieger MT 2014)

1.b7 (i) Rf7 2.Sg5 [1] (ii) R:b7 3.R:b7 [+1] (iii) c3 4.Se4 [+1] (iv) c2 5.Sc3+ Ka1 6.Se2 a2 (v) 7.Kb6 [+1] Kb2 8.Ka5+ Ka3 9.Sc1 [+1] (vi) a1Q 10.Rb3#
(i) (1.Sg5? c3 2.b7 c2 3.b8Q c1Q 4.Qg8+ Qc4=)
(ii) (2.Sf6? c3 3.Sd5 c2 4.Sb4+ Kb3! 5.Sd3+ (5.Ka6 R:b7 6.R:b7 a2=) Kc4 6.Se5+ K:b5=)
(iii) (3.K:b7 c3 4.Sf3 (4.Se4 c2 5.Sc3+ Ka1 6.Se2 a2 7.Kc6 c1Q 8.S:c1 stalemate) c2 5.Rc5 Kb2! (5. – Kb1? 5.Sd2+ Kc1 7.Sc4 a2 8.Ra5) 6.Se1 (6.Se5 a2 7.Sd3+ Kb3 8.Sc1+ Kb4 9.Sd3+ Kb3 positional draw) c1S = )
(iv) (4.Sf3? c2 =) 
(v) (6. – Ka2 7.Ka6 Ka1 8.Ka5) 
(vi) (9.Sd4? a1S! =)
11
h#3 2 sol.		 Hans MOSER
feenschach 1978

1.Qh5 g6 2.Q:e5+ K:e5 3.Rd3 Bd5# [2.5]
1.Re2 B:f3 2.R:e5 Be2+ 3.Qd3 K:e5# [2.5]
12
s#6		 Bertil GEDDA
1st Pr. Tidskrift för Schack 1982

1.Se1! h5 2.Rh2 h4 3.gh4 Kf4 4.Sg2+ Kf5 5.Qf3+ Rf4 6.e3 [2.5] R:f3#
1… h6 2.e8R h5 3.Qd7+ Re6 4.Qh

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