Solution
1.+R2c 2.Kx2c 3.B3d+ 4.K1d 5.P*1e 6.Kx1e 7.+B2e
1.+R2c 2.Kx2c 3.B3d+ 4.K1d 5.P*1e 6.Kx1e 7.+B2e
1.B*4a
if 2.G5b-4b, 3.Bx7d+. if G3b-4b(2b), Bx2c+.
1.B*7b
double attacking.
1.S*1c 2.Kx1c 3.N*2e 4.K2b 5.G*3c 6.K1b 7.S2c+ 8.Gx2c 9.P*1c 10.Gx1c 11.Nx1c+ 12.Kx1c 13.G*2c
1.B1c+ 2.Kx1c 3.P1d 4.K2c 5.N*1e
1.P*7b
if 2.Gx7b, 3.Rx8a+.
1.L*8h
1a-Promoted Bishop controls 8h-square. the Promoted Rook is trapped.
1.P*8e
if 2.Rx8e, 3.B*7d. 1.P*8e threatens S8g Rx8e B*7d, B*7d G5b S8g and B*8b.
1.P*7d
if 2.Sx7d, 3.B*5d
1.+Bx2b 2.Kx2b 3.G*3c 4.Nx3c 5.B3a+ 6.K1b 7.S2a