Solution
1.R1b+ 2.Kx1b 3.+B2b
1.R1b+ 2.Kx1b 3.+B2b
1.G*2b 2.K1c 3.R1a+
1.G*1c 2.Kx1c 3.+B1b
1.R3b+ 2.K1d 3.G*2d 4.Kx2b 5.+R3d
1.S*1c 2.K2c 3.S2d+ 4.K1b 5.+S1c
1.R3b+
1.R4a+ 2.K2b 3.+R3a
1.G*1c
1.R1d 2.K2c 3.B1c+
1.B1b+ 2.K2d 3.+B3d 4.K1e 5.R*1f