5. Bb2


__+++++++++++++++++++++++++++++++++++++++++
8 |_BR_|____|_BB_|_BQ_|_BK_|_BB_|____|_BR_|
7 |_BP_|_BP_|_BP_|____|____|_BP_|_BP_|_BP_|
6 |____|____|_BN_|____|_BP_|_BN_|____|____|
5 |____|____|____|_BP_|____|____|____|____|
4 |____|____|____|____|____|____|____|____|
3 |____|_WP|____|____|____|_WN_|_WP|____|
2 |_WP_|_WB|_WP|_WP|_WP|_WP_|_WB|_WP_|
1 |_WR_|_WN|___|_WQ|_WK_|____|___|_WR_|
__+++++++++++++++++++++++++++++++++++++++++