Checkmate puzzles for intermediate players

Checkmate in 7

1.B1b+ 2.Gx1b 3.S1d 4.Kx1d 5.Rx1b+ 6.P*1c 7.G*2e

1.R*3c 2.Rx3c 3.+B1d 4.Kx1d 5.S2d+

1.S*2b 2.Gx2b 3.Bx2b+ 4.Kx2b 5.G*3b

1.R*2b 2.Kx2b 3.B*3a 4.K1b 5.P*1c 6.Nx1c 7.G*2b

1.S*1c 2.Nx1c 3.S*2a 4.Kx2a 5.B3a+ 6.Kx3a 7.G3b

1.S*1c 2.Kx1c 3.N*2e 4.K1b 5.Bx2b+ 6.Kx2b 7.G*3c 8.K1a 9.G*2b

1.S*2b 2.Kx2b 3.B3a+ 4.K1b 5.R4b+

1.S2a+ 2.K1b 3.+S1a 4.Kx1a 5.B2a+

1.S1c+ 2.Kx1c 3.+R1d 4.Kx1d 5.B2d+

1.P*1b 2.Kx1b 3.P*1c 4.K1a 5.P2a+ 6.Kx2a 7.R1b+