Jul-Aug 2004 - SOLUTIONS
R234c - Wolfgang Dittmann
Probleemblad, Jul-Aug 2004
Retract: -1. Ke1xPf2 f3-f2 -2. Ke2xPd2 Ke7-f6 -3. Ke1-e2 d3-d2 -4. Kd5xQe5! Kd8-e7 -5. Rc7-c1 and
Forward: 1. Rd7#
Tries: -4. Ke5xQf6? Qf8-f6!; -2. Ke2xRf1? Ke7-f6 -3. Re1-e2 Bh8-g7! and Rf1 guards a1.
Cook: -1. Ra1-c1! and lots of variations, all ending in mate after 4 retractions, e.g. -1. .. Bg4-h5 -2. Ra1xQc1 Q~-c1 -3. Rd5xPd2 d3-d2 -4. Kf8xR/Se8 and 1. Kf7#
Correction:
R234cc - Wolfgang Dittmann
3+4. Retract 5 moves; then #1 (Proca Retractor, Anticirce)
[8/6b1/3N1k2/7b/4p3/8/2R5/4K3]
Solution see above. -1. Rc1-c2? doesn't work because of -1. .. Bf8-g7! -2. Ra1-c1 Bf8xBe7!
R251 - Juraj Lörinc, Dirk Borst
I) +VA e6 f7 f1 g2 h3 II) +VA c4 d7 e6 f5 g4 III) +VA f5 g4 h3 f3 e2
COOK: VA c2 d3 e6 f5 h3, and similar positions.
R252 - Eyjolfur Eyjolfsson
I) 1. Nf3 e5 2. Nd4 Ba3 3. Nc6 Qe7 4. Nxb8 Qc5 5. Nc6 Ne7 6. Nd4 O-O 7. Nf3 Rd8 8. Ng1 Kf8 9. f3 Ke8
II) 1. Nc3 e5 2. Nd5 Ba3 3. Ne7 Nc6 4. Nxg8 Qe7 5. f3 Qc5 6. Nf6+ Ke7 7. Ne4 Rd8 8. Nc3 Ke8 9. Nb1 Ne7
R253 - Thomas Brand
After Etienne Dupuis (R053)
1. d4 Nf6 2. Bh6 gxh6 3. g4 Bg7 4. g5 O-O 5. g6 Re8 6. gxf7+ Kf8 7. fxe8=N h5 8. Nd6 h4 9. Nxc8 Ke8 10. Nb6 axb6 11. Qd2 Ra3 12. Qa5 Rg3 13. Nc3 Bf8 14. O-O-O Rg8 15. Rd2 Rh8 16. Nd1 Ng8
Complete uncastling, with sibling rook.
R254 - Satoshi Hashimoto
1. e4 d5 2. Be2 d4 3. Bh5 d3 4. Qe2 dxe2 5. d4 Qd7 6. Bg5 Qh3 7. Kd2 e1=R 8. Nf3 Re3 9. Ne5 Rb3 10. axb3 Bg4 11. Ra6 Nd7 12. Rg6 f5 13. Nf7 Rd8 14. Ra6 Ndf6 15. Bg6 Nh5 16. Bf6 gxf6 17. g3 Bh6+ 18. Kc3 Bg5 19. Ra1 h6 20. Bh7 Rd6 21. Ne5 Ra6 22. Nf3 Kf7 23. Ng1
Double interference on line h5-e8, and both interfering pieces return home.
R255 - Kostas Prentos, Andrei Frolkin
1. h4 h5 2. Rh3 Rh6 3. Rg3 Ra6 4. Rg4 hxg4 5. h5 g6 6. h6 Bg7 7. h7 Bc3 8. bxc3 Kf8 9. Ba3 Kg7 10. Bd6 c5 11. h8=R Qa5 12. Rh1 b6 13. Bh2 Bb7 14. g3 Bxh1 15. Bg2 d5 16. Bf3 gxf3 17. Na3 fxe2 18. f3 Nd7 19. Kf2 e1=R 20. Rb1 Re6 21. Rb4 Rd6 22. Rh4 e6 23. Rh8 Kxh8
The original rook from h1 is captured, then replaced by a rook promoted on h8, which is also captured, then the rook from a1 goes to h8 where it is captured too. Combination of captured Pronkin and anti-Pronkin.