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2 problem(s) found in 6197 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Zwickmühle' AND K='Zuglängenrekord' AND S='SuperProblem (Website)'] [download as LaTeX]

1 - P1381529
James Malcom
SuperProblem (Website) 05/11/2020
P1381529
(11+14)
#22
1. 0-0! droht 2. Tf8#
1. ... 0-0-0 2. Txb6+ Kc7 3. Tb7+ Kc8 4. Txb5+ Kc7 5. Tb7+ Kc8 6. Txb4+ Kc7 7. Tb7+ Kc8 8. Txb3+ Kc7 9. Tb7+ Kc8 10. Txb2+ Kc7 11. Tb7+ Kc8 12. Txb1+ Kc7 13. Tb7+ Kc8 14. Txd1 Tg8+ 15. Sg5 Kd8 16. Tdb1 Ta1 17. Txa1 exd5 18. Tb8+ Kc7 19. Txg8 dxe4 20. Tb1 d5 21. Tc8+ Kd6 22. Tb6#
play all play one stop play next play all
The longest problem with both sides castling

http://superproblem.ru/archive/probl/N/Malcom-22x-2020.gif
more ...
comment
Keywords: Zwickmühle, Move Length Record, Superseded by (P1396373), Castling
Genre: n#
FEN: r3k3/1R1pp2N/Bq1pp3/1n1P4/Pp1PP2P/rp2P3/1b6/1b1nK2R
Input: James Malcom, 2020-11-04
Last update: James Malcom, 2021-11-28 more...
2 - P1396373
Xyan Tang
SuperProblem (Website) 27/11/2021
P1396373
(7+16)
#28
1. 0-0-0! 0-0 2. Tg7+ Kh8 3. Txg6+ Kh7 4. Tg7+ Kh8 5. Txg5+ Kh7 6. Tg7+ Kh8 7. Txg4+ Kh7 8. Tg7+ Kh8 9. Txg3+ Kh7 10. Tg7+ Kh8 11. Txg2+ Kh7 12. Tg7+ Kh8 13. Tg4+ Kh7 14. Le4+ Dg6 15. Lxg6+ fxg6 16. Td7+ Tf7 17. Txf7+ Kg8 18. Tg7+ Kf8 19. Txh4 Lxf2 20. Txh2 Lxe3+ 21. Kd1 b3 22. Th3 Lg5 23. Tf3 Lxf6 24. Ta7 Ke8 25. Txf6 b2 26. Txb6 b1=D+ 27. Txb1 ... 28. Tb8#
play all play one stop play next play all
The longest problem with both sides castling.

http://superproblem.ru/archive/probl/N/Tang-28x-2021.gif
msterkowiec: Computer-tested but failing to find solution after 1...Ne2+.
All works fine, if for example replace b.p.a4 with wh.p.a4 ( #28 4k2r/5p1R/1p3Bnp/6pq/Pp4pr/4P1n1/5Pbp/R3K1bB ) (2022-11-12)
comment
Keywords: Castling, Move Length Record, Promotion, Zwickmühle
Genre: n#
FEN: 4k2r/5p1R/1p3Bnp/6pq/pp4pr/4P1n1/5Pbp/R3K1bB
Input: James Malcom, 2021-11-28
Last update: James Malcom, 2021-12-19 more...
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The problems of this query have been registered by the following contributors:

James Malcom (2)