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

EGTB: win in 2 half-moves

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