Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rb6 win in 1 half-moves
3 Rc1 win in 1 half-moves
4 Kd1 loss in 2 half-moves
5 Kd2 loss in 2 half-moves
6 Ke2 loss in 2 half-moves
7 Kf1 loss in 2 half-moves
8 Kf2 loss in 2 half-moves
9 Ra1 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rd1 loss in 2 half-moves
14 Rb7 loss in 1 half-moves
15 Rb8 loss in 1 half-moves