International Solving Contest 2009 – Solutions

5th International Solving Contest (ISC)
25th January, 2009

Solutions

Round 1:

1) A. Makanzie, Mirror of American sports 1886, 1. Pr.
1. Sb7! (5)

2) J. Pospisil, Humoristicke listy 1887
1. Ld8 ! dr. 2. Kb7 (1) dr./d5/Sc4,d7 3. Lb6/Le7/Dc4 #
1. … Sc3 2. Dd4+ (1) Kxd4/Kb5 3. Lb6/Db6 #
1. … axb5 2. Da7+ (1) Kb4/Kc6 3. La5/Dc7 #
1. … Sd2 2. Dxa3+ (1) Kxb5/Kd4 3. La4/Lb6 #
1. … d5 2. Le7+ (1) Kb6 3. Sxd5 #

3) G. Bluhm, Förderungsturnier des DSV 1961, 5. Pr.
1. Th8 ! Lh4 2. Te8 f5 3. Te6 Sb5,c8 4. Td6+ Sxd6 5. Sc5 (4) Kxc5 6. Le3 #
1. … 2. … 3. … Le7 4. Txe7 Sb5,c8 5. Td7+ (1) Sd6 6. Txd6 #

4) W. A. Bron, Shakmatny listok 1928, Lob
1. Lf4+ Kh1 2. Le5 (1) c3+ 3. Lxc3 La5 4. Th4+ Kg2 5. Tg4+ (1) Kf1 6. Tf4+ Kg2
7. Tg4+ Kh2 8. Ta4 (1) Lxa4 9. Kc1 (1) Lb4 10. Le5+ K- 11. Kb2 (1) =

1. … Kh3 (?) 2. Tg3+ Kh4 3. Ta3 =
2. … La5+ 3. Ke2! c3 4. Th4+ Kg2 5. Tg4+ Kh3 6. Tg3+ Kh4 7. Txc3 a1D 8. Tc4+
K- 9. Lxa1 =
5. Txa4? Lax4 6. Kc1 Lb4! 7. L- La3+ -+
(5. Tg4+ (1) Kh2 6. Ta4 (1) …. 9. Kb2 (1) = 5 pts)

5) P. A. Petkov, feenschach 2003
1. e1S Ld1 2. Sg2 Se2+ 3. Kf3 Sc3 #
1. e1T Lg1 2. Te4 Sf5 3. gxf5 Lh2 #
1. g4 Sf5+ 2. Ke4 Lxg6 3. Kf3 Sh4 #
(1 sol. = 1,5 pts. / 2 sol. = 3 pts. / 3 sol. = 5 pts.)

6) V. Nikoletic, Sahovski Glasnik 1989, Lob
1. Dd3! dr. 2. Sg7+ Kf6 3. Dd4+ e5 4. Sf5+ Ke6 5. Sxg5+ (1) Sxg5 #
1. … Txa5 2. Txe4+ Te5 3. Dd5+ Kxd5 4. Tb5+ Ke6 5. Sd4+ (2) Sxd4 #
1. … Txd2 2. Sd4+ Kd5 3. Tb5+ Sc5 4. Txc5+ Kxc5 5. Te5+ (2) Sxe5#

Round 2:

7) O. Wielgos, Die Schwalbe 1962
1. Se2? Kxf3 2. Sc3 # 1. … Lxf4!
1. Se6? Kd5 2. Sg5 # 1. … Tb5!
1. Sf5 ! (5) dr./Kxf4/Lxf4 2. Sxg3/Sd6/d3 #

8) V. Sichev, Memorial Nabokova 1994, e.E.
1. Sbd2! dr. 2. Txe4+ (0,5) Kf5 3. Txf3 #
1. … Txd2 2. Ta8 (1) Sg3 3. fxg3 #
1. … Tc3 2. Td5 (1) – 3. Lh6 #
1. … Lc3 2. Sc4 (1) – 3. Lh6 #
1. … e3 2. Taxe3 (1) dxe3 3. fxe3 #
1. … d3 2. Txe4+ (0,5) Kf5 3. Se3 #

9) V. Pachman, Schach 1959, 2. Pr.
1. Kh3! dr. 2. Sb4+ Dxb4 3. Lc8+ (2) Db7 4. Lxb7 #
1. … Dh8+ 2. Kg3 Df8 3. Lc8+ (3) Dxc8 4. Sb4#
1. Kg3? Dd6+!
1. Kg5? Dc5+ 2. Kh4 Sxa4!

10) S. Hornecker, M. Minski, Original (Problem-Forum 2009)
1. Sg4+ (1) Txg4+ 2. Kxg4 Tg5+ 3. Kxg5 (1) Se4+ 4. Kg4 g2 5. Tf1 (2) gxh1D 6.
Sf3+ Kxd5 7. Txh1 Sf2+ 8. Kg3 Sxh1+ 9. Kg2 Kc4 10. Sd2+ (1) Kc3 11. h4 +-
(1.Txf5+? Sxf5+! 2.Sxf5 Kxf5 3.Sf3 gxh2 4.Sh2 Ke4 5.Td1 Td6 6.Sg4 a4 7.Kg3 a3
8.Kf2 a2 =)
(1.hxg3? Txf3 2.Sxf3+ Ke4 =)
(1.Txg3?? Th6+! 2.Kg4 Tf4+ 3.Kg5 Sf7#)
9…. a4 10. Sd2 a3 11. Sb1 a2 12. Sc3+ +-

11) R. Arnold, Original
1. c5 Kb5 2. Db2+ Kxc5 3. Kxd2 Sb3+ 4. Kc3 Sd2 5. Sc6 Se4# (5)

12) W. A. Shinkman, Pittsburgh Post 1924
1. Th8! dr. 2. exd8L+ Kxc8 3. Dc6,b7+ (0,5) LxD #
1. … Lf1,h3 2. Dxd8+ Kc6 3. Sxa7+ (0,5) Dxa7 #
1. … exd5 2. exd8D+ Kc6 3. Sxa7+ (1) Dxa7 #
1. … Kxc8 2. exd8T+ Kc7 3. Db7+ (1) Lxb7 #
1. … Sc6 2. e8S+ Kxc8 3. Dxc6+ (1) Lxc6 #
1. … Sxe7 2. Le5+ Kxc8 3. Db7+ (1) Lxb7 #

 

Problems

 

 

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