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Problemesis

Solutions

R1 - Michel Caillaud
1. e4 e5 2. Ke2 Bc5 3. Kd3 d6 4. Kc4 Kd7 5. Qg4 Kc6 6. Qd7 Kb6 7. Kd5 f5 8. Ke6 Nc6 9. Kf7 Nd4 10. Qa4 Nb5 11. c4 Bd4 12. Qd1

R2 - Michel Caillaud
1. f4 d5 2. f5 Qd6 3. f6 Bg4 4. fg7 f5 5. g3 Nf6 and now: 6. f8=R Kf7 7. Rg6 Bh6 8. Rg5 Bg5, or 6. f8=B Bh6 7. Be6 Bg5 8. Bf7 Kf7

R3 - Michel Caillaud
1. d4 c5 2. d5 c4 3. d6 c3 4. de7 cb2 5. Nc3 b1=Q 6. ed8=B Qb6 7. Bh4 Qd8 8. Na4 b5 9. c4 b4 10. c5 b3 11. c6 b2 12. c7 b1=Q 13. cd8=B Qb6 14. Beg5 f6 15. g4 fg5 16. Bh3 gh4 17. g5 Qd8

R4 - Philippe Leroy
1. Nc3 d5 2. Nd5 f6 3. Nf6 Kf7 4. Nh7 Nd7 5. Nf8 Rh2 6. Nd7 Rg2 7. Rh7 Rf2 8. Bh3 Re2 9. Kf1 Rd2 10. Ne2 Rc2 11. Be3 Rb2 12. Ba7 Ra2 13. Be3 Re2 14. Ra8 Re3 15. Rc8 Ra3 16. Qh5
However, Alexandre Leroux found the following cook: 1. Nc3 f6 2. Ne4 Kf7 3. Nf6 Na6 4. Nh7 Nb4 5. Nf8 Na2 6. Ra2 Rh2 7. Nd7 Rg2 8. Rh7 Rf2 9. Bh3 Re2 10. Kf1 Rd2 11. Ra7 Rc2 12. Ne2 Re2 13. Ra8 Rb2 14. Rc8 Rb3 15. Ba3 Ra3 16. Qh5.

R5 - Michel Caillaud
1. e4 e6 2. Ne2 Bd6 3. Nec3 Bg3 4. hg3 a5 5. Rh5 a4 6. Ra5 Ra6 7. e5 Rc6 8. Ra8 Na6 9. Rc8 Nb4 10. Ra8 Qb8 11. Ra6 Qa7 12. Rb6 cb6 13. Ba6 Rc8 14. Ke2 Nc6 15. Kd3 Ra8 16. Kc4 Nb8 17. Kb5 ba6
But this is cooked: 1. e4 e6 2. Ne2 Bd6 3. Nec3 Bg3 4. hg3 a5 5. Rh5 a4 6. Ra5 Ra6 7. e5 Rd6 8. Ra8 Nc6 9. Rc8 Rd5 10. Ra8 Ra5 11. Ra6 Qc8 12. Rb6 Ra8 13. Ba6 Qb8 14. Ke2 Qa7 15. Kd3 Nb8 16. Kc4 cb6 17. Kb5 ba6

R5c - Michel Caillaud
1. a4 a5 2. Ra3 Ra6 3. Rb3 Rc6 4. Rb6 g6 5. Ra6 Bh6 6. Ra8 Na6 7. Rc8 Nb4 8. Ra8 Qb8 9. Ra6 Kd8 10. Rb6 cb6 11. f3 Rc8 12. Kf2 Nc6 13. b4 Qc7 14. ba5 Ra8 15. a6 Kc8 16. a5 Qd8 17. Kg3 Nb8

R6 - Etienne Dupuis
1. Nf3 d6 2. Rg1 Bh3 3. gh3 h5 4. Rg6 h4 5. Bg2 Rh5 6. Rh6 g6 7. Rh8 Bh6 8. Kf1 Kf8 9. Kg1 Kg7 10. Kh1 Nf6 11. Qg1 Qg8 12. Bf1 Qh7 13. Rd8 Ng8 14. Rd7 Kf8 15. Qg2 Ke8 16. Ng1 Bf8 17. Qc6 Qg7 18. Kg2 Rh8

R7 - Michel Caillaud
1. e3 a6 2. Qg4 a5 3. Qb4 ab4 4. Na3 b3 5. Rb1 ba2 6. b4 a1=B 7. Rb3 Bd4 8. Bb2 Be3 9. Ba1 Bf2 10. Kf2
1. e4 a5 2. Qf3 a4 3. Qb3 ab3 4. Na3 ba2 5. Rb1 a1=N 6. b4 Nb3 7. Bb2 Nc5 8. Ba1 Ne4 9. Rb3 Nf2 10. Kf2

R8 - Gianni Donati
1. e3 g5 2. Qf3 Bg7 3. Qc6 dc6 4. e4 Be6 5. e5 Bb3 6. e6 Qd3 7. ef7 Kd7 8. f8=Q e5 9. Qf3 e4 10. Qd1 e3 11. f4 e2 12. f5 ed1=N 13. f6 Nc3 14. f7 Nf6 15. dc3 Rd8 16. f8=Q Bh8 17. Qb4 Re8 18. Qg4 Nfd7 19. Qd1

R9 - Satoshi Hashimoto
1. d4 Nc6 2. d5 Na5 3. d6 c6 4. Qd5 Qc7 5. dc7 d6 6. Qh5 Be6 7. c8=B Bb3 8. Bh3 b6 9. g4 OOO 10. g5 f5 11. gf6 Kb7 12. Bc8 Rc8

R10 - Satoshi Hashimoto
1. Nc3 d5 2. Ne4 d4 3. c3 d3 4. Qc2 dc2 5. d4 g5 6. Bd2 c1=B 7. b3 Ba3 8. h4 Bd6 9. OOO Bf4 10. Kb2 e5 11. Be1 Bc1 12. Rc1

R11 - Thierry le Gleuher
1. g4 d5 2. g5 Qd6 3. g6 Qh2 4. gh7 Qg1 5. hg8=N Qg6 9. Ne7 Qc2 7. Nd5 Qc1 8. Ndc3 Qb1 9. Nb1

R12 - Pascal Wassong
The white Pawns have taken the 3 missing black units : dxc, fxe and h2xg3. Black Pawns have captured twice a4xb3 and bxc (if dxc, BPb can't have been captured). Black promotions on d1 and h1 and white promotion on a8. To unblock the position, WPa has to be depromoted to allow a4xb3. This WP has promoted to S and is now on e6. When the WP is on a6, 3 black moves are necessary to avoid retro-stalemate. The only possibility is BPh6 until h3. This indicates that the BSc2 is the promoted BPh. The piece captured on g3 is another BS which replaces the WS on e6. The last moves were: -1. .. Ne1-c2 -2. Nb8-a6 Nd3-e1 -3. Na6-b8 Nf2-d3 -4. Nb8-a6 Nh1-f2 -5. Na6-b8 h2-h1=N -6. Nb8-a6 h3-h2 -7. h2xNg3 Ne2-g3 -8. Na6-b8 Nd4-e2 -9. Nf4-e6 Ne6-d4 -10. Nd3-f4 Nb8-d7 -11. Nb2-d3 Nd7-b8 -12. Na4-b2 Nb8-d7 -13. Nb6-a4 Nd7-b8 -14. Na8-b6 Nb8-d7 -15. a7-a8=N Nd7-b8 -16. Nb8-a6 h4-h3 -17. a6-a7 h5-h4 -18. a5-a6 h6-h5 -19. Na6-b8 Nb8-d7 -20. a4-a5 Nd7-b8 -21. a3-a4 a4xNb3 So it is White to move : 1.Sa6xc7#! If it was Black to move, retro-opposition on b8 would lead to black retro-stalemate when the WP is on a6.

R13 - Michel Caillaud
(a): 1. Na3 e5 2. Nc4 Qf6 3. Ne5 Qf3 4. Ngf3 d6
(b): 1. Nc3 d6 2. Nd5 Nd7 3. Ne7 Ndf6 4. Nc6 Ne7 5. Nd8 Nc6 6. Nf3 Nb8 7. Nc6 Ng8 8. Nce5

R14 - Michel Caillaud
(a) 1. OO is illegal. So mate in 3 with 1. g4! fg3 2. hg3 Kf5 3. Rh5#
(b) 1. OO is stalemate. Mate in 4 with 1.g5 Kf5 2. OO Ke5 3. Rd1 Kf5 4. Rd5#

R15 - Etienne Dupuis
1. a3 g6 2. Ra2 Bc3 3. Nc3 d5 4. Rb1 d4 5. Raa1 Ba2 6. Rh1 Kd7 7. Rba1 Kc8 8. Nb1

R16 - Satoshi Hashimoto
1. h4 c5 2. h5 Qb6 3. h6 Qg6 4. hg7 Bg7 5. a3 Bc3 6. dc3 Nc6 7. Bg5 Rb8 8. Bf6 ef6 9. e3 f5 10. Ba6 Nf6 11. Ke2 OO 12. Qd7 ba6 13. Qd1 Rb5 14. Kd3 Nb8

R17 - Michel Caillaud
1. e4 f5 2. e5 Nf6 3. ef6 e5 4. f7 Ke7 5. Qh5 Qe8 6. Qh6 gh6 7. Ke2 Bg7 8. f8=Q Kd8 9. Qf6 Qe7 10. Kf3 Ke8 11. Kg3 Qd8

R18 - ?#8240;tienne Dupuis
1. d4 d6 2. Qd3 Nd7 3. Qg6 hg6 4. a4 Rh5 5. Bh6 gh6 6. a5 Bg7 7. a6 Ra5 8. d5 Bd4 9. g4 e5 10. Bg2 Qh4 11. g5 hg5 12. Kf1 Qh7 13. h4 Nc5 14. h5 gh5

R19 - Satoshi Hashimoto
1. f3 e5 2. Kf2 Bc5 3. Kg3 d6 4. Nh3 Bg1 5. Nf4 Bh3 6. e3 f5 7. Ne2 Nf6 8. Kh4 h5 9. g3 Bg2 10. h3 Bh2 11. Ng1 Nfd7

R20 - Thierry le Gleuher
1. e4 a5 2. Ba6[=N] Ra6[=Q] 3. e5 Qe2[=R] 4. Ne2[=B] h5 5. OO[Rf1=B] Rh6[=B] 6. Kh1 Be3[=N] 7. Kg1 Nf1[=B] 8. Bf1[=R]

R21 - Thierry le Gleuher
1. d3 Nh6[=P] 2. Bh6[=R] f5 3. Rf6[=B] gf6[=N] 4. h4 Bh6[=N] 5. h5 Nhg8[=P] 6. h6 Nd5[=P] 7. Rh5[=B] g6 8. gh7 ep[=N]

R22 - Thierry le Gleuher
1. g4 f5 2. gf5[=N] d6 3. Ne7[=B] Bh3[=N] 4. Bh4[=N]Qg5[=R] 5. Nh3[=B] Rg2[=B] 6. Bfg2[=R] Be7[=N] 7. Rgg1[=B] Nf5[=P] 8. Bf1[=N] Ne7[=P] 9. Ng2[=P]

R23 - Philippe Leroy
The last moves were: -1. .. d7xQc6 -2. Qb7-c6 h7-h6 -3. Qc6-b7 Bb7-a8 -4. Qc5-c6 Ba6-b7 -5. Qf2-c5 Bb5-a6 -6. Qf8-f2 Ba6-b5 -7. f7-f8=Q Bb5-a6 -8. g6xRf7 Rf8-f7 -9. g5-g6 Rh8-f8 -10. h4xBg5 Be7-g5 -11. h3-h4 Bf8-e7 -12. h2-h3 e7x[Q,R]d6. The extra white bishop comes from the promotion of the white f-pawn on e8, by capturing f7xRe8=B.

R24 - Michel Caillaud
1. d4 f5 2. Nd2 f4 3. Rb1 f3 4. ef3 e5 5. Bc4 Bb4 6. Ke2 Ke7 7. Nf1 Kd6 8. de5 Kc5 9. Qd7 Bc3 10. Qe8 Nd7 11. Kd3 Kb4 12. bc3 Ka4 13. Rb2 Ka3 14. Rb3 Ka2 15. Ra3 Kb1 16. Bb3 Nc5 17. Kc4 Qd6 18. Kb4 Na6

R25 - Michel Caillaud
1. f3 e5 2. Kf2 Qf6 3. Kg3 Qa6 4. Kh4 Qe2 5. g3 Qf2 6. Ba6 e4 7. d3 e3 8. Nd2 e2 9. Nb3 e1=Q 10. Bg5 Qe7 11. Qe2 Qfe3 12. Rf1 Qd8 13. Nc1 Qee7 14. Qe7

R26 - Gianni Donati
1. h4 h5 2. Rh3 Rh6 3. Rb3 Rc6 4. Rb6 ab6 5. Nc3 Ra3 6. Ne4 Rc3 7. dc3 e6 8. Bh6 Qh4 9. Qd2 Be7 10. Rd1 Bf6 11. Qc1 Ke7 12. Nd2 Kd6 13. Nb1 Kc5 14. Rd3 d6 15. Rh3 Bd7 16. Rh1 Qh3 17. Qd1 h4 18. Bc1

R27 - Michel Caillaud
(a): 1. Nf3 c5 2. Ne5 c4 3. f3 c3 4. Kf2 Qb6 5. Kg3 Qf2 6. Kg4 b6 7. e3 Bb7 8. Qe2 Bd5 9. Qa6 Ba2 10. Nc4 cd2
(b): 1. e3 c5 2. Ke2 c4 3. Kf3 c3 4. Kg4 cd2 5. f3 Qf2 6. Qe2 b6 7. Qa6 Bb7 8. Nh3 Bd5 9. Na5 Bb3 10. Nc4 Ba2

R28 - ?#8240;tienne Dupuis
1. Nf3 f5 2. Ne5 f4 3. Nd7 f3 4. Nc5 Qd7 5. Nb3 Qh3 6. gh3 Bf5 7. Bg2 Bd3 8. Kf1 fe2 9. Kg1 e1=Q 10. Bf1 Qe4 11. Be2 e6 12. Kf1 Bc5 13. Ke1 Be3 14. Bf1

R29 - Michel Caillaud
1. h4 2. h5 3. h6 4. hg7 5. gh8=N 6. Nf7 7. Nd8 8. Ne6 9. Nf8 10. Nd7 11. Nb8 12. Nc6 13. Na7 14. Nc8 15. Ne7 16. Ng8 17. Nh6 18. Ng4 19. Nh2 20. g4 21. Bg2 22. Bb7 23. Ba8 24. Bd5 25. Bb3 26. c4 27. Qc2 28. Qh7 29. Qc7

R30 - Michel Caillaud
(a): 1. d4 Na6 2. Bh6 Nh6 3. e3 Nf5 4. Ba6 Nd4 5. c4 Nc6 6. Qa4 Nb8
(b): 1. d4 Nh6 2. Bh6 Nc6 3. e3 Nd4 4. Ba6 Nf5 5. c4 Nh6 6. Qa4 Ng8

R31 - Satoshi Hashimoto
1. g3 Nc6 2. Bg2 Ne5 3. Bc6 Ng6 4. Bb5 c6 5. Nf3 Qb6 6. Nd4 Kd8 7. Nb3 Qe3 8. de3 Kc7 9. Bd2 Kd6 10. Bc3 Ke6 11. Qd6 Kf5 12. N1d2 Kg4 13. Rd1 Kh3 14. Na1 Kg2 15. Ndb3 Kh1 16. Rd4 Kg2 17. Ra4 Kh3 18. Ra6 Kg4 19. Qd1 Kf5 20. Kd2 Ke6 21. Kd3 Kd6 22. Kc4 Kc7 23. Be5 Kd8 24. Bf4 Ke8

R32 - ?#8240;tienne Dupuis
1. e3 h5 2. Qh5 a5 3. Qa5 Rh2 4. g3 Rg2 5. Rh8 Rh2 6. Qh5 Ra2 7. b3 Rc2 8. Ra8 Ra2 9. d3 Ra1 10. Kd2 Rh1

R33 - ?#8240;tienne Dupuis
1. Nf3 Nc6 2. Ne5 Nd4 3. Nc6 e5 4. Nc3 Bb4 5. Nd5 Bc3 6. bc3 Nf6 7. Bb2 Ne4 8. Qc1 Nf3 9. Kd1 Ng1 10. d4 Nd2 11. Nde7 Nb1 12. Ng8 Qe7 13. Nb8

R34 - ?#8240;tienne Dupuis
1. d4 g6 2. Bg5 Bh6 3. Be7 Bc1 4. Bf8 Qf6 5. Qd2 Qf3 6. ef3 d6 7. Ba6 Bh3 8. g4 b5 9. Bc8 Bf1

R35 - ?#8240;tienne Dupuis
1. f4 g6 2. Kf2 Bg7 3. Ke3 Bc3 4. dc3 f6 5. Qd6 Kf7 6. Qc7 Ke6 7. Qc8 Qa5 8. Kd4 Qh5 9. Be3 Kf5 10. Kc5 a5 11. Kb6 Ke4 12. Kc7 Na6 13. Kd8 Rb8 14. Ba7 Nc5 15. Ke8 Ke3 16. Qd8 Kf2 17. e3 Qd1 18. Be2 Ke1