
Answer: No
R2b

R2b
White can’t play G2a because the Bishop on 1c attacks 3a-square.
1.R*1a 2.Kx1a 3.L*1c 4.L*1b 5.N2c
1.S2d
1.B3a+ 2.K1b 3.R1d
White can’t play S2a because the Lance on 3d attacks 3a-square.
White can’t play Px2d because of the Bishop on 3d
1.N1a+ 2.Kx1a 3.R4a+ 4.K1b 5.+R2a 6.K1c 7.+R2b
1.B4b+
S7g