[Retros] Pawn to-the-6th rank mates

[Nicolas.Dupont at math.univ-lille1.fr]

> One more :
>
> 1.Pf2-f4   Pe7-e6   2.Pf4-f5   Ff8-a3   3.Pb2xa3   Cg8-f6
> 4.Fc1-b2   Cf6-e4   5.Fb2xg7   Ce4xd2   6.Dd1xd2   Re8-e7
> 7.Re1-d1   Th8-e8   8.Pf5-f6

Opposite game :

1.Cg1-f3   Pf7-f5   2.Cf3-e5   Pf5-f4   3.Ce5xd7   Dd8xd7
4.Pe2-e3   Dd7-b5   5.Ff1-d3   Fc8-h3   6.Re1-e2   Fh3xg2
7.Th1-e1   Pf4-f3