After 1…g4 2.c6+, we have instead a draw Q+P vs B+P endgame, with 2…axb6!, allowing White to promote the c-pawn, 3.c7 Kg2 4.c8Q Kxh2 5.Qxa6 g3 6.Qxb6= (confirmed with tablebase)
For the study to work, we need to start it with the position arising after 1.bxc5 gxh4.
Paulo Vasconcelos
1 месяц назад
Here is a potential modification to the starting position, that keeps the author solution:
After 1…g4 2.c6+, we have instead a draw Q+P vs B+P endgame, with 2…axb6!, allowing White to promote the c-pawn, 3.c7 Kg2 4.c8Q Kxh2 5.Qxa6 g3 6.Qxb6= (confirmed with tablebase)
For the study to work, we need to start it with the position arising after 1.bxc5 gxh4.
Here is a potential modification to the starting position, that keeps the author solution:
1. bxc5 gxh4 (1… axb6 2. cxb6) (1… g4 2. c6+ Kxf3 3. c7 Kf4 4. Be3+) 2. c6+ Kxf3 3. c7 Kg4 (3… Kf4 4. Be3+ Kg4 5. h3+) 4. h3+ Kg5 5. Kf7 Bf5 6. Be3#