Die Schwalbe

2 problem(s) found in 2921 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Zwickmühle']

1 - P1098218
Dieter Müller
Shakhmatnaya Kompozitsiya 11-12/2008
Moskauer Turnier 2008
2. Lob
P1098218
(4+10) C+
s#11
1. Sc2+? Lxc2! 2. Kh8

1. Lxc4+! Kb1 2. La2+ Ka1 3. Lxd5+ Kb1 4. La2+ Ka1 5. Lxe6+ Kb1 6. La2+ Ka1 7. Lxf7+ Kb1 8. La2+ Ka1 9. Lxg8+ Kb1 10. La2+ Ka1 11. Sc2+ Lxc2#
play all play one stop play next play all
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comment
Keywords: Zwickmühle
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: r5n1/5ppK/4p3/3p4/b1p5/Q1b5/B7/k3N3
Input: Frank Müller, 2010-01-15
Last update: James Malcom, 2020-09-28 more...
2 - 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
Longest problem with both sides castling

http://superproblem.ru/archive/probl/N/Malcom-22x-2020.gif
Henrik Juel: Popeye 4.61 with 'opt thr 1' found no flaws (2020-11-04)
James Malcom: I've managed a small extension, so do not computer test this yet. (2020-11-04)
Olaf Jenkner: Semi-finished problems should not be published. (2020-11-05)
James Malcom: I agree-this was a severe lapse in my judgement. (2020-11-05)
A.Buchanan: I think you’re being too hard on yourself, James. It’s hard to know when a problem is “finished”. Unless a position is just thrown together for a discussion, I tend to wait another sleep cycle to see if any more ideas pop up. But it’s not the end of the world if an electronically published problem gets improved a couple of days after the first post (2020-11-05)
James Malcom: I had had the previous position for a while now, but only yesterday did I see how to improve it. And the new position has now been entered. There are definite duals in the sidelines, but there is a forward, main, defense plan for Black. (2020-11-05)
comment
Keywords: Castling as key, Zwickmühle, Move Length Record
Genre: n#
FEN: r3k3/1R1pp2N/Bq1pp3/1n1P4/Pp1PP2P/rp2P3/1b6/1b1nK2R
Input: James Malcom, 2020-11-04
Last update: James Malcom, 2020-11-05 more...
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The problems of this query have been registered by the following contributors:

Frank Müller (1)
James Malcom (1)