Proof Game #5

PG in 15.0 moves
(position after Black's 15th; find the gamescore)

Originally posted by BigDoggProblem
[fen]rrn5/p3nppp/1pp1pk2/5bb1/8/8/PPPqPPPP/R1BQKBNR w KQ - 0 16[/fen]
PG in 15.0 moves
(position after Black's 15th; find the gamescore)

That was a tough nut to crack. Black has only one spare move, which must be a queen move, allowing the h-rook to pass to b8. The white knight must make a detour towards g1, to avoid checking black. And the white d-pawn must lose a tempo for two reasons: to get the number of moves correct, and to avoid arriving at d7 before the e7 square is available for the black king.

1.Nf3 c6
2.Ne5 Qa5
3.Nxd7 Nxd7
4.Nc3 Nb6
5.d3 Bf5
6.d4 e6
7.d5 Be7
8.d6 Bg5
9.d7+ Ke7
10.d8=R Kf6
11.Rd2 Ne7
12.Nb5 Rhb8
13.Nd4 Nbc8
14.Nf3 b6
15.Ng1 Qxd2+

Originally posted by Mephisto2
That was a tough nut to crack. Black has only one spare move, which must be a queen move, allowing the h-rook to pass to b8. The white knight must make a detour towards g1, to avoid checking black. And the white d-pawn must lose a tempo for two reasons: to get the number of moves correct, and to avoid arriving at d7 before the e7 square is available for th ...[text shortened]...
8.d6 Bg5
9.d7+ Ke7
10.d8=R Kf6
11.Rd2 Ne7
12.Nb5 Rhb8
13.Nd4 Nbc8
14.Nf3 b6
15.Ng1 Qxd2+

Interesting synopsis. The composer would say that the King is on f6 to eliminate the other 4-move N paths from c3 to g1.