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MatPlus.Net Forum General Question about a proof game
 
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(1) Posted by Bob Baker [Tuesday, Apr 23, 2024 12:38]

Question about a proof game


Yesterday, Leither123 posted the position rnbq1r2/ppppp3/Rr3Pkn/8/P2BB3/3PP1R1/1bP1QPP1/1N2K1N1
in the Shortest-proof-game challenge of the Fun With Chess forum at chess.com. It has a unique SPG in 15.5 which ends with a double check by an en passant capture. He posed a question as to the shortest such unique SPG.

I wonder if someone here knows of other positions with unique SPGs ending in double check by en passant capture, and what the record is for the shortest such proof game.

Here is a link to Leither123's posting of the position.

https://www.chess.com/forum/view/more-puzzles/shortest-proof-game-challenge?page=340#comment-101965209

I don't know now but could ask whether the position is Leither123's own composition.
 
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(2) Posted by Joost de Heer [Tuesday, Apr 23, 2024 13:26]

https://pdb.dieschwalbe.de/P0006447
 
 
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(3) Posted by Bob Baker [Tuesday, Apr 23, 2024 16:45]

Thank you, Joost. That taught me a PDB keyword that was new to me.
 
 
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MatPlus.Net Forum General Question about a proof game