[Retros] shortest proofgames of castling switchback

Joost de Heer joost at sanguis.xs4all.nl
Sat Jul 14 04:47:18 EDT 2007



> Btw., does an SPG exist, where both sides did an invisible castling?


Yes, it's even in the FIDE album.

A. Frolkin
Die Schwalbe 1990
2nd prize
r1bsk2r/pp1p2pp/2s2p2/2bQp3/4Pr2/5PR1/PP1P2PP/RSB1K2R
SPG 19.0

Joost



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