9th International Solving Contest (ISC)
27th January, 2013
Solutions
1) David Shire, Christopher Reeves, Marjan Kovacevic, Original for The Problemist 2013 (version for 9. ISC)
1. Sg5? dr./Sxa7/Sd6/Rxf1,Rxc1,Re3 2. Sd3/Qxc3/Qd4/Qe3 #
1. …Sf3/Bf4 2. Sxf3/Qxf4 # 1… b6!
1. Sc5? dr./Sd4 2. Sd7/S1d3 # 1… cxd2!
1. Sd6? dr./exd5/Sa3,Sxd6 2. Sc4/Sd3/Qd4 # 1… Re4!
1. Sf2! (5) dr./f5/Re4 2. Sg4/Scd3/Sfd3 #
2) A.N. Pankratiev, V.N.Rychkov, Yuri Marker, The Problemist 1990
1. Qh3! dr. 2. Rxa4+ (1) Kb5 3. Qxd7 #
1. … Sg4,Sef5 2. Be2+ (1,5) Sxe2/Kxd4 3. Qd3/Rxd5 #
1. … Sgf5 2. Bxd5+ (1,5) Sxd5/Kxd4 3. Qd3/Re4 #
1. … Kxd4 2. Qh8+ (1) Kc4 3. Qc3 #
3) Heinz Gfeller, Schweizerische Schachzeitung 1966 (dedicated to K. Flatt)
1. Bc4! Kb7 2. Ba5 Kc6,Ka6 3. Bb4 Kb7 4. Bd5+ Ka6 5. Ra5+ bxa5 6. Bc5 (5)
1. … …2. … a6 (?) 3. Rxb6 Ka7 4. Bd5 (#5) (-)
4) Martin Minski, Original for Magyar Sakkvilág 2013
1. Kc7 (1) Rd5 (i) 2. c4 (1) (ii) Rxa5 3. b5+ (1) (iii) Ka7 (iv) 4. c5 (1) Ra6 (v) 5. a5 (1) bxa5/bxc5 6. b6+ +-
(i) 1… Rh8 2. Sc6 b5 3. c4 +-; 1… Rd6 2. Sc6 b5 3. Sb8+ Ka7 4. axb5 +-
1… Rb8 2. Kxb8 bxa5 3. Kc7! axb4 4. cxb4 +-
(ii) 2. Sc6? b5! 3. c4 bxc4 4. b5+ Rxb5 5. axb5+ Kxb5 =
(iii) 3. bxa5? Kxa5 =
(iv) 3.… Rxb5 4. axb5+ Ka5 5. c5! bxc5 6. b6 c4 7. b7 c3 8. c8Q +-
(v) 4… Rxb5 5. axb5 bxc5 6. b6+ +-; 4… bxc5 5. b6+ Ka6 6. b7 +-
5) József Pogats, idee und form 1996
I) 1. Sd2 Kxd2 2. Ke4 e3 3. Rf5 Bxa6 4. Be5 Bxb7 #
II) 1. Sd3 exd3 2. Rd5 Be2 3. Rd6 Bg4 4. Bd5 d4 #
III) 1. Sf3 Kd3 2. Kf4 Bxg2 3. Rg5 Bxh3 4. Be5 e3 #
IV) 1. Bf3 exf3 2. Qc2 Bb5 3. Qg6 f4+ 4. Kf5 Bd7 #
(1 sol=1 pts; 2 sol=2,5 pts; 3 sol=4 pts; 4 sol=5 pts)
6) Waldemar Tura, The Problemist 1985, 2. Pr.
1. Qh2! dr. 2. Sg3+ Kd6 3. Rxc6+ (1) Rxc6 #
1. …Rb6 2. Sd5+ Kb5 3. Sxd4+ (1,5) Qxd4 #
1. …b3 2. Sd6+ Kb4 3. Sxc6+ (1,5) Rxc6 #
1. … Sc3,Sb6 2. Sxd4+ Sd5 3. Sb3+ (1) Qxb3 #
7) Života Tanic, Die Schwalbe 1973, 1. Pr.
1. Qe1? dr./Se6/Ra2,Rxa1/Sxe4 2. Sxc5/Sc3/Sc4/Qxe4 # 1… Sd3!
1. Qe3? dr./Se6/Rxa1 2. Sxc5/Sf6/Sc4 # 1… b2!
1. Sc3? dr./Se6/dxc3/Rh7 2. Sf7/Qe1/Qd5/Qxg5 # 1… d3!
1. Sf6! (5) dr./Se6/Rh7 2. Sf7/Qe3/Qxg5 #
8) Carel Sammelius, Tidskrift för Schack 1955, 2. HM
1. Rh3! dr. 2. Sce2+,Sge2+ (0,5) fxe2 3. Sxe2 #
1….Se~ 2. Bf6+ (1) Se5 3. Qf4 #
1….Sxd7 2. Qg7+ (1) Se5 3. Qa7 #
1….Sxc6 2. Qf6+ (1) Se5,Kc5 3. Qb6 #
1….Sxg4 2. Qxh8+ (1) Se5 3. Rh4 #
1….Sxc4 2. Rxc4+ (0,5) Kxd5 3. Qe6 #
9) Yakov Vladimirov, Vecherny Leningrad 1988, 1. Pr.
1. Bf7! Zugzwang
1… cxb5 2. Rxe4+ Qxe4 3. Bxf4+ (1) Qxf4 4. Qd5 #
1… Bf8..c5 2. Bxf4+ Qxf4 3. Rxe4+ (1) Qxe4 4. Qxf6 #
1… Sf1 2. Qxe4+ Qxe4 3. Sf3+ (1) Kf5 4. Sh6#
1… Sg4 2. Qxf4+ Qxf4 3. Sf3+ (1) Kf5 4. Sxe7 #
1… d6,Bd8 2. Bxh2 ~ 3. Sxf5 (1)
10) Alexander Gerbstman, Spartak 1962, 2. Pr.
1. Bd4+ Kb1 2. Ra1+ Kc2 3. Ra2+ (1) Kd3 4. Ra3+ (1) (i) Ke2 5. Re3+ Kf2 6. Re4+ Kf1 7. Rf5 (1) Rf2 (ii) 8. Kd6/Kb6 (1) h2 (iii) 9. Rh4 (1) +-
(i) 4. Rxh2 Bxd5+ 5. Kd5 = /Kc5 Bg2 =
(ii) 7… Kg2 8. Rg5+ Kf1,Kh1 9. Rg1 #
(iii) or 8… Bxe4 9. Rxf2+ Ke1 10. Ra,b2! (1) +- EGTB (10. Rh2/Rf4? Bg2/h2 =)
11) Christopher Jones, Original for ISC 2013
1. Sd5 cxd5+ 2. cxd5 c6 3. Bxc6 Rxc6 # (2,5)
1. Re3 fxe3 2. f2 Rxf2 3. Qe5 Bf7 # (2,5)
12) Peter Kniest, feenschach 1981
1. Rf6! Sxg5 2. Rh5 Kxf6 3. Rh6+ Ke5 4. Sxf3+ (1,5) Sxf3 #
1. … Sf8 2. Qe7+ Se6 3. Qc5+ Sxc5 4. Sxd3+ (1,5) Sxd3 #
1. … Sxf6 2. Sg4+ Sxg4 3. Sc4+ Ke4 4. Bd2 (2) f2 #