[Retros] Pawn to-the-8th-rank double checkmates

[Hirokaz ONODA]

Hi,

 1.Pb2-b4 Pc7-c6  2.Pb4-b5 Dd8-a5  3.Pb5-b6 Da5xd2
 4.Fc1xd2 Pd7-d6  5.Fd2-a5 Fc8-g4  6.Dd1-d4 Cb8-d7
 7.Dd4xg4 0-0-0   8.Dg4-a4 Rc8-b8  9.Pb6xa7 Rb8-a8
10.Fa5-c7 Td8-b8 11.Pa7xb8=T 
and 11. Pa7xb8=D too.
With 11. Pa7xb8=F/C, it's a discovered checkmate.

Hiro


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