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2 problem(s) found in 1610 milliseconds (displaying 2 problem(s)). [PROBID IN 'P1281143; P1281145'] [download as LaTeX]

1 - P1281143
Fran├žois Labelle
Retros mailing list 1/5/2004
P1281143
(5+1) C+
BP in 15,5
Solution:
1. d4 Sh6 2. Lxh6 d6 3. Lxg7 Le6 4. Lxf8 Lxa2 5. Lxe7 Lxb1 6. Txa7 Lxc2 7.
Dxc2 Tg8 8. Dxc7 Txg2 9. Dxd6 Txh2 10. Dxb8 Txf2 11. Dxb7 Dxd4 12. Txh7
Dxb2 13. Txf7 Txf1+ 14. Txf1 Dxe2+ 15. Kxe2 Txa7 16. Dxa7= patt

Forbidden solutions (one of them):
1. d4 Sh6 2. Lxh6 d6 3. Lxg7 Le6 4. Lxf8 Lxa2 5. Lxe7 Lxb1 6. Txa7 Lxc2 7.
Dxc2 Txa7 8. Dxc7 Tg8 9. Dxd6 Txg2 10. Dxb8 Txh2 11. Dxb7 Txf2 12. Dxa7
Dxd4 13. Txh7 Dxb2 14. Txf7 Txf1+ 15. Txf1 Dxe2+ dead 16. Kxe2=? would be patt
play all play one stop play next play all
32 ways to reach position prior to 16.Ke1xQe2, but game would be dead at this point.
comment
Keywords: Dead Position, Unique Proof Game, Rex solus (S), Aristocrat, Miniature, Homebase
Genre: Retro
Computer test: Francois Labelle's programme (but maybe needs independent verification).
FEN: 4k3/Q3B3/8/8/8/8/4K3/5RN1
Input: A.Buchanan, 2013-12-15
Last update: A.Buchanan, 2021-06-05 more...
2 - P1281145
Fran├žois Labelle
Retros mailing list 1/5/2004
P1281145
(1+2) C+
BP in 17,0
Solution:
1. d4 e5 2. Lf4 exd4 3. Lxc7 Dxc7 4. Dxd4 Dxh2 5. Dxg7 Dxg1 6. Dxg8 Txg8 7.
Txh7 Txg2 8. Txf7 Txf2 9. Txd7 Txe2+ 10. Kxe2 Dxf1+ 11. Ke3 Dxb1 12. Txb7
Dxa2 13. Txb8 Dxb2 14. Txa7 Dxc2 15. Txc8+ Dxc8 16. Txa8 Dd8 17. Txd8+
Kxd8

Forbidden solutions (one of them):
1. d4 e5 2. Lf4 exd4 3. Lxc7 Dxc7 4. Dxd4 Dxh2 5. Dxa7 Dxg1 6. Dxb8 Dxf2+
7. Kxf2 Txa2 8. Dxb7 Txa1 9. Txh7 Txb1 10. Txh8 Txb2 11. Txg8 Txc2 12. Txg7
Lxb7 13. Txf7 Lxg2 14. Txd7 Lxf1 15. Kxf1 Txe2 16. Kxe2 Kxd7 17. Ke3 Kd8
play all play one stop play next play all
427 ways to reach position prior to 17... Kd7-d8, but game would be dead at this point.

(independently verified with 'rawbats')
comment
Keywords: Dead Position, Unique Proof Game, Rex solus (W)
Genre: Retro
Computer test: Francois Labelle's programme (but maybe needs independent verification).
FEN: 3k1b2/8/8/8/8/4K3/8/8
Input: A.Buchanan, 2013-12-15
Last update: Mario Richter, 2020-08-26 more...
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The problems of this query have been registered by the following contributors:

A.Buchanan (2)