[Retros] shortest proofgames of castling switchback

Mario Richter mri_two at t-online.de
Wed Jul 18 08:09:17 EDT 2007

Joost wrote:

> C+ for the first 17 moves. But white just has too many free moves, I

> don't think it can be fully computertested.

It can be done (takes btw less than 3 seconds computer time - but
in the approach used, some minutes have to be added for
preparing the computer input ), but not with the current
versions of "Natch" and Co.

And yes - the verdict of my program was "Found one solution".



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