Proof Game #3

Originally posted by BigDoggProblem
Nicolas Dupont
Messigny 2006
[fen]r1bq1r2/p1p1ppb1/1kn2npp/1p1p4/8/8/P3PP1P/RN1QK1NR w KQ - 0 14[/fen]
PG in 13.0 moves
(Black just made move 13; find the gamescore)

This one was much more difficult (at least for me). Forgetting the captures, black has only 2 spare moves to reach the final position. The diffficulty was to find a way to capture the white b- and d- pawn (the c-pawn was easier, because there is no black pawn blocking it). It becameclear that onlypawn captures (each pawn capturing twice, losing one tempo) could be the solution. But still not trivial to make it work. There is only one way (without losing tempi) to capture the white g-pawn, so that was an easy start (opening the diagonal for the bishop).

1.d4 Nf6
2.Bh6 gxh6
3.c4 Bg7
4.c5 Rf8
5.c6 dxc6
6.b4 Kd7
7.b5 cxb5
8.g4 Kc6
9.Bg2+ Kb6
10.Bc6 bxc6
11.d5 cxd5
12.g5 Nc6
13.g6 hxg6

Interesting to see how the black b- and d-pawn swap files.