No. 245, October 2010
14634 - Nikolai Beluchow
Die Schwalbe, No. 245, 10/2010
13+12. #1 (who?)
[8/1pp2pp1/3pQ2B/3p4/Bp1P4/1PbKP1P1/NrPP1BP1/1b1kb3]
Solution
The solution not available yet. Please contribute!
14635 - Gerd Wilts
13+12. Proof game in 20.0 moves
[k1rb4/1R2p3/1qbp1nPp/1p3p1r/8/8/2P1P1PP/1NBQKBNR]
Solution Replay
1. b4 g6 2. b5 Lh6 3. b6 Lf4 4. bxa7 h6 5. axb8=T Ta5 6. d4 Th5 7. d5 b5 8. d6 Lb7 9. dxc7 Lc6 10. c8=S Db6 11. a4 Lc7 12. f4 d6 13. f5 Kd7 14. fxg6 f5 15. a5 Sf6 16. a6 Txc8 17. a7 Ld8 18. a8=L Kc7 19. Ta7+ Kxb8 20. Tb7+ Kxa8
Schnoebelen-Promotion
14636 - Jorge Lois, Roberto Osorio
12+15. Proof game in 21.0 moves
[rRRqkbnr/1Nppppp1/bpn5/pB6/P3P3/1PP5/2P3P1/2B2K2]
1. e4 h5 2. Dg4 hxg4 3. a4 g3 4. Ta3 gxh2 5. Tb3 hxg1=L 6. Th6 a5 7. Ta6 Sc6 8. Tbb6 Tb8 9. Lb5 Lxf2+ 10. Kf1 Ld4 11. Ta8 Lc3 12. Tba6 b6 13. dxc3 Tb7 14. Sd2 Ta7 15. Sb3 Lb7 16. Tc8 Ta8 17. Sc5 Tb8 18. Ta8 La6 19. b3 Tb7 20. Tab8 Ta7 21. Sb7 Ta8
Rundlauf, Ceriani-Frolkin
14637 - Unto Heinonen
15+14. Proof game in 21.0 moves
[rnbqkbnr/1pp1ppp1/1R6/3B4/1P2P1p1/1PPK4/1BP1NPP1/1NRQ4]
1. e4 h5 2. Dg4 hxg4 3. b4 Th3 4. Lb2 Tb3 5. axb3 d5 6. Ta6 d4 7. Tb6 a5 8. h4 a4 9. h5 Ta5 10. h6 Tc5 11. h7 Tc3 12. Lc4 d3 13. dxc3 d2+ 14. Ke2 d1=T 15. h8=D Td6 16. Ld5 a3 17. Kd3 a2 18. Se2 a1=T 19. Tc1 Ta8 20. Dh1 Th6 21. Dd1 Th8
Pronkin
14638 - Andrej N. Frolkin, Nicolas Dupont
14+13. Proof game in 21.5 moves
[3RR3/pp1n1rp1/1b4p1/5bk1/Pn4pq/1Pp3P1/3PP1P1/1NBQKBN1]
1. f4 Sf6 2. f5 Sd5 3. f6 Sb4 4. fxe7 f5 5. c4 Kf7 6. e8=T Lc5 7. Te6 Lb6 8. Tg6 hxg6 9. c5 Th3 10. c6 Tg3 11. cxd7 c5 12. hxg3 c4 13. Th8 Dh4 14. d8=T Kf6 15. Td4 Kg5 16. Tg4+ fxg4 17. a4 Lf5 18. Ta3 Sd7 19. Te3 Tf8 20. b3 Tf7 21. Td8 c3 22. Tee8
Anti-Pronkin
14639 - Michel Caillaud
3+9. Retract 9 moves, then #1 (Verteidigungsrückzüger, Typ Proca)
[4k3/2Kp3p/1ppP3N/1p6/8/p7/p2p4/8]
14640 - Bernd Gräfrath
11+14. Proof game in 11.0 moves (White Minimummer)
[r1b1kbnr/pppp1ppp/8/8/6P1/6R1/PP1P1P1P/RNBnK3]
1.c2-c3 e7-e5 2.c3-c4 Dd8-g5 3.c4-c5 Dg5-e3 4.c5-c6 Sb8xc6 5.g2-g3 Sc6-d4 6.g3-g4 Sd4-f3+ 7.Sg1xf3 e5-e4 8.Th1-g1 e4xf3 9.Tg1-g2 De3xe2+ 10.Lf1xe2 f3xe2 11.Tg2-g3 e2xd1=S
14641 - Günther Weeth
1+11. Retract 10 moves, then #1 (Proca retractor without forward defense, Anticirce Calvet, magic square type II g8)
[7n/8/3r1pr1/2k1p3/3b4/5bp1/1p4p1/4K3]
14642 - Alain Brobecker
Logical Progressive Chess. Find a game ending with: a) 4. ?, DxSg3# b) 4. ?, ?, Df6# c) 4. ?, ?, Dg5-e5#
White start with one single move, then Black makes two single moves, then White makes three single moves, etc. The single moves can be played with different pieces. A checking move terminates the move series immediately. No castling, no Pawn double steps, no en passant.