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

EGTB: win in 8 half-moves

# move score
1 Rb8 win in 7 half-moves
2 Kb7 draw
3 Kc7 draw
4 Kcc5 draw
5 Kd6 draw
6 Kd7 draw
7 Rb7 draw
8 Ka4 loss in 2 half-moves
9 Ka5 loss in 2 half-moves
10 Ka6 loss in 2 half-moves
11 Kb4 loss in 2 half-moves
12 Kbc5 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Ra6 loss in 2 half-moves