Checkmate puzzles for intermediate players

Checkmate in 9

1.G*3b 2.K1b 3.R*2b 4.Gx2b 5.Gx2b 6.Kx2b 7.P*2c 8.K3b 9.G*4b

1.R*1a 2.Kx1a 3.N*2c 4.Gx2c 5.G*1b

1.N*2d 2.Gx2d 3.G*2b 4.Kx2b 5.R*2a 6.Kx2a 7.G*3b 8.K1b 9.G*2b

1.S*1b 2.Kx1b 3.G*2c 4.K2a 5.+Bx1a 6.Kx1a 7.L*1b 8.K2a 9.N*3c

1.B*2b 2.Kx2b 3.N*3d 4.K3a 5.B*2b 6.Gx2b 7.N4b+

1.B*2a 2.K1a 3.G2b 4.Kx2b 5.B3b+ 6.K1b 7.+B2a

1.R1a+ 2.Kx1a 3.+Rx1c 4.Gx1c 5.G*2b

1.S*2b 2.Sx2b 3.P*3b 4.Gx3b 5.G*4a 6.Kx4a 7.N*5c 8.K3a 9.+R5a

1.R2a+ 2.Kx2a 3.G*3b 4.K1b 5.Gx2b 6.Kx2b 7.G*3b 8.K1b 9.S*2a

1.N*2d 2.Px2d 3.Rx2b+ 4.Kx2b 5.G*2c