ALL DE FR ES IT

Logo

Probleemblad

January 2001

R110c - Alexandr Zolotarev

Probleemblad Jan. 2001

(a): Last moves were: -1. .. Bd1-h5 -2. f3xNe4 Nf6-e4 -3. Ne5-d7 Nd7-f6 -4. Ng6-e5 Be2-d1 -5. Nh8-g6 Bf1-e2 -6. h7-h8=N Be2-f1 -7. h6-h7 Bf1-e2 -8. h5-h6 f2-f1=B -9. h4-h5 g3xNf2 -10. Nh3-f2 g4-g3 -11. f2-f3 h5xBg4 -12. Be2-g4 h6-h5 -13. Bf1-e2 h7-h6 -14. e2xQd3 and the position unlocks.

(b): Last moves were: -1. .. Be2-h5 -2. f3xNe4 Nf6-e4 -3. a4-a5 Nd5-f6 -4. Nb5-c7 Nc7-d5 -5. Nd4-b5 Bf1-e2 -6. Nf5-d4 Be2-f1 -7. Ne7-f5 Bf1-e2 -8. Ng6-e7 Be2-f1 -9. Nh8-g6 Bf1-e2 -10. h7-h8=N Be2-f1 -11. h6-h7 Bf1-e2 -12. h5-h6 f2-f1=B -13. h4-h5 g3xNf2 -14. Nh3-f2 g4-g3 -15. f2-f3 h5xBg4 -16. Be2-g4 h6-h5 -17. Bf1-e2 h7-h6 -18. e2xQd3 and the position unlocks.


R119 - Alexandr Zolotarev

Probleemblad Jan. 2001

Last moves: -1. .. f7xRe6 -2. Rb6-e6 a7-a6 -3. Rb8-b6 Na6-c7 -4. b7-b8=R e5xRf4 -5. b6-b7 d5xBe4 -6. a5xBb6. Further retractions are: c2-c8=B-e4; c3-c8=R-f4; (c6xQd5); d3-d7; (d6xQe5); g6-g8=Q-e5; (d7-d6); g7-g8=Q-d5 (Bh6-b6); g5-g6; (c7-c6); g6-g7; (Bf8-h6); (g7xPf6).

Six knightmoves are needed: Nb8-a6-c7; Ng8-f6-e8; Nb1-d2; Ng1-f3. The knight on h1 is the promoted h-pawn, the extra whitesquared bishop is the promoted b-pawn.

Ceriani-Frolkin theme with QQRRB.


R120 - Gerald Ettl

Probleemblad Jan. 2001

Last moves were: -1. .. b5-b4 -2. e6-e7 b4-b3 -3. d5xBe6[+bBc8] Bc8-e6 -4. c4xBd5[+bBc8] Ba8-d5 -5. b3xRc4 b7-b5 -6. a2xPb3[+bPb7] b7xPa6[+wPa2] -7. a5-a6 Rc8-c4 -8. a4-a5 Rf8-c8 -9. c3xBd4 Rh8-f8 -10. d2xRc3[+bRh8] c4xPd3[+wPd2] -11. d2-d3 and the position is released.

But this is cooked: Black can take back -8. .. Rh8-c8 too, and white uncaptures this rook on e3.


R121 - Michel Caillaud

Probleemblad Jan. 2001

If black may castle, then there are two possible helpmates in 2:

1. Ba7 Ba7 2. OOO Rb8#
1. cb6 d6 2. bc5 Rb8#

Suppose black may castle. The position unlocks when white unpromotes a piece on h8, and retracts this pawn to h4, so black can uncapture h5xg4. From the position r3k1K1/B1p2p1P/Bb6/2PP1PP1/2Prbrp1/1Prp1p2/2p2P2/N7, play forward:

1. h8=R Ba5 2. Rh6 Bb4 3. Rb6 Ba5 4. Kg7 Bb4 5. Kh6 Ba5 6. Kh5 Bb4 7. Kh4 Ba5 8. Kg3 Bb4 9. Kh2 Ba5 10. Kg1 Bb4 11. Kf1 Ba5 12. Ke1 Bb4 13. Kd2 Ba5 14. Kc1 Bb4 15. Kb2 Ba5 16. Ka3 Bb4+ 17. Ka4 Ba5 18. Kb5 Bb4 19. Kc6 Ba3 20. Bb5 Bc1 21. Ba4 Bd2 22. Rb5 Be1 23. Kb7 Bd2 24. Ka6 Be1 25. Ka5 Bd2 26. Kb4 Be3 27. Ka3 Bc1+ 28. Ka2 Ba3 29. Bb6 Bb4 30. Kb2 Ba5 31. Kc1 Bb4 32. Kd2 Ba3 33. Ke1 Bc1 34. Kf1 Be3 35. Ba5 Bd2 36. Bb4 Be1 37. Ba3 Bd2 38. Bc1 Be1 39. Be3 Bd2 40. Kg1 Bc1 41. Kh2 Ba3 42. Bc1 Bb4 43. Ba3 Ba5 44. Bb4 Bb6 45. Ba5 Ba7 46. Bb6 Bb8 47. Kg3 Ba7 48. Kh4 Bb8 49. Kh5 Ba7 50. Kh6 Bb8 51. Kh7

But then Ba7 would be the 50th move without capture, pawn move, or castling! So the castling solution isn't a legal solution. So this helpmate has only one legal solution!


R122 - Olli Heimo

Probleemblad Jan. 2001

1. b4 h5 2. Bb2 h4 3. Bf6 h3 4. Nc3 hg2 5. Rb1 gh1=B 6. Bg2 Rh3 7. Bc6 Rd3 8. ed3 Bd5 9. Ke2 Bc4 10. Ke3 Ba6 11. b5 Nh6 12. Rb4 Ng8 13. Rh4 Nh6 14. f4 Ng8 15. Rh8 Nh6 16. Qh5 Ng8 17. Qh7 Nh6 18. h4 Ng8 19. h5 Nh6 20. Bh4 Ng8 21. Rg8


R123 - Satoshi Hashimoto

Probleemblad Jan. 2001

1. h4 a5 2. Rh3 a4 3. Rb3 ab3 4. a4 Ra6 5. a5 Rf6 6. a6 h5 7. a7 Rhh6 8. Ra6 Rhg6 9. Rc6 dc6 10. a8=R Qd4 11. Ra1 Qa7 12. d4 Bg4 13. d5 Bxe2 14. d6 Bb5 15. Qg4 hg4 16. h5 Rf3 17. h6 Nf6 18. h7 Nd5 19. h8=R f6 20. d7+ Kf7 21. d8=Q Nb6 22. Qd1 Ke8 23. Rh1


R124 - Henrik Juel & Bernd Schwarzkopf

Probleemblad Jan. 2001

a) Add Rb8, Rc8, Rd8, Rc7, Rd7, Re7, Rb6, Rc6, Rd6, Rb5.

b) Add Ra8, Rc8, Rd8, Re8, Rd7, Re7, Rf7, Ra6, Rc6, Rd6.

c) Add Rd8, Rf8, Rg8, Rh8, Rg7, Rh7, Rd6, Rf6, Rg6, Rh6.

d) Add Rc8, Rd8, Re8, Rg8, Rb7, Rc7, Rd7, Rc6, Rd6, Rg6.


F233 - Fernand Joseph

Probleemblad Jan. 2001

a) Black may not castle, since his last move must've been with his rook or king. 1. .. Ed2 2. Eg1 Eg4 3. Ee5 Kf6# and 1. .. Kf6 2. Kf8 Eh4 3. Kg8 Ea2#

b) 1. .. Eg4 2. Ea1 Ea6 3. OO Kg6# and 1. .. Kf6 2. Eg7 Ee6 3. OO Ef7#


167i - Frank Christiaans

Probleemblad Jan. 2001

Last black move was Kb1-c2 or Kc1-c2, so white may not castle. #2 with 1. Sc3 Kd3/Kb3 2. Be4/Ba4#