No.1723
Paul Rãican
(Romania)

Original Fairy problems
JF-2022-I:
01.01.2022 - 30.06.2022


No. 1723 Paul Rãican
Romania
original - 30.06.2022

white Pd5e2e4g5e6h7b7 Kb2 black Pc4a4b3e3e5d6g6e7 Kd1 Sh8
ser-s#33                       8+10

Solution: (click to show/hide)


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Michal Dragoun
Michal Dragoun
June 30, 2022 21:42

Cooked by 1.Kb1 2.-5.b8Bxd6xe5-g3 6.-8.d6xe7-e8Q 9.Qxh8 10.Qa1 11.h8B 12.Bb2 13.-16.e7-e8Qxa4-a2 17.-21.e5-e6-e7-e8Q-e4 22.Qc2+ bxc2X

paul raican
paul raican
July 1, 2022 13:13
Reply to  Michal Dragoun

Thank you, Michal. I have a version with bKh1:
pieces white kb2 pb7d5e2e4e6g5h7 black kh1 be7 sb5h8 pa4b3c4d6e3e5g4g6
stip ser-s#33
Solution: 1.b7-b8=B 2.Bb8xd6 3.Bd6xe5 4.d5-d6 5.d6-d7 6.d7-d8=B 7.Bd8xe7 8.Be7-a3 9.e6-e7 10.e7-e8=Q 11.Qe8xb5 12.Qb5xb3 13.Kb2-a2 14.Be5-a1 15.e4-e5 16.e5-e6 17.e6-e7 18.e7-e8=Q 19.Qe8xe3 20.Qe3-g3 21.e2-e4 22.e4-e5 23.e5-e6 24.e6-e7 25.e7-e8=B 26.Be8xg6 27.Bg6-b1 28.g5-g6 29.g6-g7 30.g7xh8=B 31.Bh8-b2 32.h7-h8=B 33.Bh8-c3 a4xb3# (or c4xb3#)
Promotions QQBBBBB
Check please.

Michal Dragoun
Michal Dragoun
July 2, 2022 00:08
Reply to  paul raican

Cooked as well: 1.-6.b8Qxh8xe5-f6xg6-f6 7.-9.g6-g8B 10.Bf7 11.Bh5 12.-15.h8Q-h6xe3-d2 16.e3 17.e5 18.-21.Kc1-d1-e1-f2 22.-24.Bg6-d3-f1 25.Qe2 26.Qh4+ Bxh4X (maybe some move can be saved, some manoeuvres possibly are not optimized).

paul raican
paul raican
July 3, 2022 00:55
Reply to  Michal Dragoun

Third version (Sh8 and Be7 interchanged):
pieces white kb2 pb7d5e2e4e6g5h7 black kh1 bh8 sb5e7 pa4b3c4d6e3e5g4g6
stip ser-s#33
Solution: 1.b7-b8=B 2.Bb8xd6 3.Bd6xe5 4.d5-d6 5.d6-d7 6.d7-d8=B 7.Bd8xe7 8.Be7- a3 9.e6-e7 10.e7-e8=Q 11.Qe8xb5 12.Qb5xb3 13.Kb2-a2 14.Be5-a1 15.e4-e5 16.e5-e6 17.e6-e7 18.e7-e8=Q 19.Qe8xe3 20.Qe3-g3 21.e2-e4 22.e4-e5 23.e5-e6 24.e6-e7 25.e7-e8=B 26.Be8xg6 27.Bg6-b1 28.g5-g6 29.g6-g7 30.g7xh8=B 31.Bh8-b2 32.h7-h8=B 33.Bh8-c3 a4xb3# (or c4xb3#)
Promotions QQBBBBB
Check please.

Michal Dragoun
Michal Dragoun
July 3, 2022 11:07
Reply to  paul raican

Cooked 1.Ka1 2.-4.b8Bxd6xe5 5.-9.d6xe7-e8Bxg6-f5 10.-11.g6-g7 12.-13.Bh2-g1 14.-20.e7-e8Bxb5xa4xb3xc4-a2 21.-25.e5-e6-e7-e8R-f8 26.Bfb1 27.Rf3 28.Rg3 Bxg7X

paul raican
paul raican
July 3, 2022 12:17
Reply to  Michal Dragoun

Splendid checkmate image!
Fourth version (Sb5 and Bh8 interchanged):
pieces white kb2 pb7d5e2e4e6g5h7 black kh1 bb5 sh8e7 pa4b3c4d6e3e5g4g6
stip ser-s#33
Solution: 1.b7-b8=B 2.Bb8xd6 3.Bd6xe5 4.d5-d6 5.d6-d7 6.d7-d8=B 7.Bd8xe7 8.Be7- a3 9.e6-e7 10.e7-e8=Q 11.Qe8xb5 12.Qb5xb3 13.Kb2-a2 14.Be5-a1 15.e4-e5 16.e5-e6 17.e6-e7 18.e7-e8=Q 19.Qe8xe3 20.Qe3-g3 21.e2-e4 22.e4-e5 23.e5-e6 24.e6-e7 25.e7-e8=B 26.Be8xg6 27.Bg6-b1 28.g5-g6 29.g6-g7 30.g7xh8=B 31.Bh8-b2 32.h7-h8=B 33.Bh8-c3 a4xb3# (or c4xb3#)
Promotions QQBBBBB
Check please.

paul raican
paul raican
July 3, 2022 12:26
Reply to  paul raican

No need to replay, Michal. Just have seen a forced checkmate with bBf1 and wKh3.

paul raican
paul raican
July 3, 2022 15:01
Reply to  paul raican

The last version is without black Bishop:
pieces white kb2 sg1 pb7d5e2e4e6g5h7 black kf1 pe7 sb5h8 pa4b3c4d6e3e5g6
stip ser-s#33
Solution: 1.b7-b8=B 2.Bb8xd6 3.Bd6xe5 4.d5-d6 5.d6-d7 6.d7-d8=B 7.Bd8xe7 8.Be7-a3 9.e6-e7 10.e7-e8=Q 11.Qe8xb5 12.Qb5xb3 13.Kb2-a2 14.Be5-a1 15.e4-e5 16.e5-e6 17.e6-e7 18.e7-e8=Q 19.Qe8xe3 20.Qe3-g3 21.e2-e4 22.e4-e5 23.e5-e6 24.e6-e7 25.e7-e8=B 26.Be8xg6 27.Bg6-b1 28.g5-g6 29.g6-g7 30.g7xh8=B 31.Bh8-b2 32.h7-h8=B 33.Bh8-c3 a4xb3# (or c4xb3#)
Promotions QQBBBBB
Check please.

Michal Dragoun
Michal Dragoun
July 3, 2022 15:38
Reply to  paul raican

1.-4.b8Qxd6xe5-g3 5.-9.d6xe7-e8Bxg6-h5 10.-11.g6-g7 12.-15.e7-e8R-e6-g6 16.-21.e5-e6-e7-e8Qxe3-e7 22.-27.Kc1-h6 28.Qf7+ Sxf7X

paul raican
paul raican
July 3, 2022 21:27
Reply to  Michal Dragoun

The chessboard appears to be a minefield.
A new version (no black Bishop): pieces white kb2  pb7d5g2e4e6g5h7 black kh1 sb5h8 pa4b3c4d6g3e5e7g6
stip ser-s#33
Solution: 1.b7-b8=B 2.Bb8xd6 3.Bd6xe5 4.d5-d6 5.d6-d7 6.d7-d8=B 7.Bd8xe7 8.Be7-a3 9.e6-e7 10.e7-e8=Q 11.Qe8xb5 12.Qb5xb3 13.Kb2-a2 14.Be5-a1 15.e4-e5 16.e5-e6 17.e6-e7 18.e7-e8=B 19.Be8xg6 20.Bg6-b1 21.g5-g6 22.g6-g7 23.g7-g8=Q 24.Qg8xg3 25.Qg3-f2 26.g2-g4 27.g4-g5 28.g5-g6 29.g6-g7 30.g7xh8=B 31.Bh8-b2 32.h7-h8=B 33.Bh8-c3 a4xb3# (or c4xb3#)
Promotions QQBBBBB
Still cooked?

Michal Dragoun
Michal Dragoun
July 4, 2022 00:35
Reply to  paul raican

This position looks promising. I see neither reasonable check to force mate, nor any other tempo final position. But nobody can be sure…

paul raican
paul raican
July 4, 2022 07:56

The order of moves tested with A to B by Jacobi. Thanks a lot for assistance, Michal!