[Retros] Proof game verification

[Francois Labelle]

paul raican wrote:


> Peut-tu m'informer si la pj suivante est unique?

> 1.Cc3 d5 2.Cxd5 Ff5 3.Cxe7 Fxc2 4.Cxg8 Txg8 5.a3 Fxa3 6.Dxc2 Fxb2 7.Dxh7

> Fxc1 8.Dxg7 Txg7 9.Txc1 Txg2 10.Txc7 Txg1 11.Txb7 Txh1 12.Txa7 Txh2

> 13.Txa8 Txf2 14.Txb8 Dxb8 15.Rxf2 Dd8 16.Re1.


- You probably meant to send this to me privately.

- No, it's not unique. The position at ply 29 is x=4 and cooked according 
to my files:

1q2k3/5p2/8/8/8/8/3PPK2/5B2 (7 solutions)


> C'est un essai d'egaliser le record de T. le Gleuher, Phenix 109/2002.


This record was shown to be cooked, and the longest at-home proof game is 
now 16.5 moves (R143 - F. Labelle, Problemesis 38).

 	Francois