Solution
1.+B3a 2.K1b 3.S2a
1.+B3a 2.K1b 3.S2a
1.+Rx2a 2.Kx2a 3.G*2b
1.R*1c 2.Gx1c 3.Sx1c+ 4.Kx1c 5.G*2c
1.+R1b 2.Kx1b 3.B2b+
1.B1a+ 2.Kx1a 3.+R4a 4.K1b 5.+R2a
1.+Rx3a 2.Kx3a 3.G*3b
1.R3b+ 2.Kx3b 3.B3c+ 4.K4a 5.G*4b
1.+Rx2b 2.Gx2b 3.G*2d
1.R3c+ 2.Kx3c 3.+R4c 4.Kx4c 5.G*4d
1.R*3b 2.K1c 3.R2b+