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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Rb5 win in 1 half-moves
3 Rb2 draw
4 Kb4 loss in 2 half-moves
5 Kc4 loss in 2 half-moves
6 Ra3 loss in 2 half-moves
7 Rb4 loss in 2 half-moves
8 Rb6 loss in 2 half-moves
9 Rb7 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Kb2 loss in 1 half-moves
12 Kc2 loss in 1 half-moves
13 Kd2 loss in 1 half-moves
14 Kd3 loss in 1 half-moves
15 Kd4 loss in 1 half-moves