Solution
1.P*8c 2.Rx8c 3.P*8d
Black will win the Rook or the promoted Silver.
1.P*8c 2.Rx8c 3.P*8d
Black will win the Rook or the promoted Silver.
1.R1d 2.Gx1d 3.+R2b
1.G3b 2.Kx3b 3.N*4d 4.K2b 5.+R4b
P*3c
White will win material.
if Bx3c, then Rx2a+. if Rx3c, then Rx2b+. if Nx3c, then Rx3d.
1.S*2a 2.Gx2a 3.B3d+ 4.K2b 5.+B2c
1.R*1c 2.+Bx1c 3.R2a+
1.P*2d
there’s no way to prevent Pawn promotion.
1.P*2c doesn’t work because 2.B1c
1.P2c+ 2.Gx2c 3.P*2d
1.N*2d 2.K1a 3.B2b+ 4.Gx2b 5.P*1b 6.Gx1b 7.Nx1b+ 8.Kx1b 9.G*2b 10.K1c 11.N*2e
1.+R1d