May-Jun 2004 - SOLUTIONS
R242 -
Probleemblad, May-Jun 2004
1. e4 d5 2. exd5 Qxd5 3. Bc4 Qh5 4. Bxf7+ Kd7 5. Bc4 Kc6 6. Bf1 Bf5 7. Ne2 Kb5 8. Ng1+
Switchback of white bishop and knight.
R243 -
Probleemblad, May-Jun 2004
1. Nc3 e5 2. Rb1 e4 3. Nxe4 c5 4. Nxc5 Nc6 5. Nb3 Nd4 6. Na1 Nxe2 7. Nxe2 Bd6 8. Rg1 Bg3 9. Nxg3 g5 10. Nh1 g4 11. Qxg4 Nf6 12. Kd1 Ne4 13. Qxe4+ Qe7 14. Qe1 Kd8 15. Be2 Qe8
Interchange S/R (twice) and K/Q (twice), rows 3-6 empty.
R244 -
Probleemblad, May-Jun 2004
1. Nc3 b5 2. Nd5 b4 3. Nxe7 b3 4. Nc6 Ba3 5. bxa3 b2 6. Rb1 bxc1=B 7. Rb7 Bb2 8. Qa1 Bc1 9. Qxg7 Bb2 10. Kd1 Ba1 11. Qb2 Qf6 12. Kc1 Qc3 13. Kb1 Nf6 14. Qc1 O-O 15. Qe1 Kh8 16. Kc1 Bb2+ 17. Kd1 Bc1
Double switchback of a promoted bishop.
R245 -
Probleemblad, May-Jun 2004
1. d3 d5 2. Bg5 Qd6 3. e3 Qg3 4. hxg3 f5 5. Rh6 f4 6. gxf4 e5 7. fxe5 Bd6 8. exd6 Ne7 9. dxc7 O-O 10. cxb8=N Rf3 11. gxf3 Bf5 12. Bh3 Be4 13. Bd7 Nc6 14. Re6 h5 15. fxe4 h4 16. exd5 h3 17. dxc6 h2 18. cxb7 h1=N 19. bxa8=N
Ten times a double pawn, 2 diagonal and one orthogonal excelsior.
R246 -
Probleemblad, May-Jun 2004
1. d4 Nc6 2. d5 Rb8 3. dxc6 dxc6 4. Qd6 exd6 5. Be3 Kd7 6. Bb6 cxb6 7. c4 Kc7 8. c5 dxc5 9. b4 cxb4 10. h4 Bc5 11. Rh3 Ne7 12. Ra3 Re8 13. Ra6 bxa6 14. a4 Kb7 15. a5 bxa5 16. e3 Qb6 17. Bb5 cxb5 18. Ra4 bxa4 19. Na3 bxa3
Quintupled pawn on the a-file
R247 -
Probleemblad, May-Jun 2004
1. g4 b5 2. g5 Bb7 3. g6 Bd5 4. gxh7 Bxa2 5. hxg8=N Bxb1 6. Rxa7 Rxh2 7. Ra3 Ra4 8. Rh3 Rh4 9. c3 Bh7 10. Nxe7 Bg8 11. Ng6 Bb4 12. e4 Ba5 13. Qh5 b4 14. Qh8 Rh7 15. Bb5 Qh4 16. d3 Kd8 17. Bg5+ Kc8 18. Bd8 Qe7 19. Rh5 Rh4 20. Rh3
Orthogonal and diagonal Bristol.
R248 -
Probleemblad, May-Jun 2004
1. h4 Nf6 2. h5 Nd5 3. h6 Nb6 4. hxg7 h5 5. gxf8=N h4 6. Ng6 fxg6 7. f4 Kf7 8. f5 Re8 9. f6 Ke6 10. f7 Kd5 11. f8=N Kc4 12. Ne6 dxe6 13. b4 Qd4 14. b5 Qh8 15. d4 h3 16. d5 h2 17. d6 hxg1=N 18. d7 Nh3 19. d8=N Bd7 20. Nc6 Nc8 21. b6 bxc6 22. b7 c5 23. bxa8=N Bc6 24. Nb6+ axb6
R249 -
Probleemblad, May-Jun 2004
1. e4 h5 2. Qg4 hxg4 3. e5 Rh3 4. e6 Rb3 5. axb3 Nc6 6. Ra6 Nb4 7. Rc6 dxc6 8. h4 Qd3 9. h5 Bd7 10. h6 O-O-O 11. h7 Kb8 12. Rh6 Bc8 13. Rf6 exf6 14. h8=R Bd6 15. Rh1 Bh2 16. e7 Qg3 17. e8=R Rd3 18. Re4 Rf3 19. d4 a5 20. d5 a4 21. d6 a3 22. d7 a2 23. d8=Q a1=R 24. Qd1 Ra5 25. Nd2 Rh5 26. Bb5 Nd5 27. Ra4 Rh8 28. Ra1
Fourfold exact phoenix Pronkin; for all Pronkins, the original piece is captured before the promotion.
R250 -
Probleemblad, May-Jun 2004
Retract: -1. Qg6xBh5! Kc8-d7 -2. Kf3-g4! and black is in retro-Zugzwang: -2. ... d3-d2 -3. Qg3-g6 and forward Qc7#; or -2. .. Bg4-h5 -3. Qg7-g6 and
Forward: 1. f8=R#
Try: -1. Qg2xBh3? Kc8-d7 and white is in retro-Zugzwang: -2. f4-f5? d3-d2!; -2. h6-h7? Bh7-g8!; -2. K~? Bg4-h3!; -2. Q~? Bg2-h3!