Checkmate in 15 Solution 1.G1c 2.Kx1c 3.P1d 4.K1b 5.P1c+ 6.Kx1c 7.B*2d 8.K1b 9.P*1c 10.Nx1c 11.Bx1c+ 12.Kx1c 13.P*1d 14.K1b 15.N*2d