Solution
1.R*2b 2.Kx2b 3.S*3a 4.Kx3a 5.G*4b 6.K2b 7.+Bx3b 8.K1b 9.N*2d 10.Px2d 11.S*2c
Category: Checkmate puzzles for advanced players
Checkmate in 11
Solution
1.N*3d 2.K1b 3.S*2c 4.Gx2c 5.G*2b 6.Gx2b 7.Nx2b+ 8.Kx2b 9.G*2c 10.K3a 11.B3b+
Checkmate in 11
Solution
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
Checkmate in 13
Solution
1.S*3a 2.K1c 3.S*2b 4.K1b 5.Sx1a+ 6.Kx1a 7.L*1c 8.K2a 9.L1b+ 10.Kx1b 11.R3b+ 12.K1c 13.+R2b