Solution
1.B*6a
putting Bishop like 1.B*6a is a common tactic in Bishop Exchange.
1.B*6a threatens S*8c and Bx4c+ Gx4c Rx2c+
角換わり
1.B*6a
putting Bishop like 1.B*6a is a common tactic in Bishop Exchange.
1.B*6a threatens S*8c and Bx4c+ Gx4c Rx2c+