Die Schwalbe

1 problem(s) found in 961 milliseconds (displaying 1 problem(s)). [PROBID='P1068490'] [download as LaTeX]

1 - P1068490
Kostas Prentos
Andrey Frolkin

13077 Die Schwalbe 219 06/2006
Werner Keym gewidmet
1. Preis
P1068490
(10+14) C+
BP in 26.0
1. h4 a5 2. h5 a4 3. h6 a3 4. hxg7 h5 5. g4 Sh6 6. g8=L Lg7 7. g5 Ld4 8. g6 f6 9. Ld5 Lc5 10. Lc6 0-0 11. g7 Kh7 12. g8=T bxc6 13. Tg5 La6 14. Te5 fxe5 15. f4 Tf6 16. f5 Td6 17. f6 Lc4 18. f7 Lxa2 19. f8=D Le6 20. Df3 a2 21. Dd5 axb1=S 22. Ta2 Sc3 23. dxc3 cxd5 24. Kd2 d4 25. Kd3 Lf5+ 26. e4 dxe3ep+
play all play one stop play next play all
The first known example of the Keym Task.
Henrik Juel: Stelvio 1.31 found the solution immediately and tested it unique in 9 minutes (for the first 25.0 moves) (2023-06-13)
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Keywords: Unique Proof Game, Ceriani-Frolkin Theme (DTLs), Castling, En passant, Valladao Task, Promotion (LTDs), Allumwandlung, Keym Task (The first known prob)
Genre: Retro
Computer test: Natch 3.1 (38 m, utilizing the final ep). Stelvio 1.33, 2min (retracting the e.p. move itself, so full C+)
FEN: rn1q4/2ppp2k/3r3n/2b1pb1p/8/2PKp3/RPP5/2BQ1BNR
Input: Gerd Wilts, 2006-08-05
Last update: Reto, 2023-06-13 more...
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The problems of this query have been registered by the following contributors:

Gerd Wilts (1)