Solution
1.S1a+ 2.K1c 3.+S1b 4.Kx1b 5.B2b+
1.S1a+ 2.K1c 3.+S1b 4.Kx1b 5.B2b+
1.S2d+
1.G*2a 2.Gx2a 3.N*2c 4.K1b 5.G*1c
1.+Rx2b 2.Kx2b 3.G*2c
R*6i
double attack
B*7g
double attack
1.+R2d 2.Kx2d 3.B*3c 4.K1d 5.N*2f
1.R1b+ 2.Kx1b 3.G*1c
1.S*4a
2.R4b 3.Sx3b+ 4.Rx3b 5.Rx2c+
B*7a
double attack.