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

EGTB: win in 8 half-moves

# move score
1 Kb5 win in 7 half-moves
2 Kb6 win in 7 half-moves
3 Kb7 win in 7 half-moves
4 Kcd7 win in 7 half-moves
5 Kd6 win in 7 half-moves
6 Rb8 win in 7 half-moves
7 Kc5 win in 11 half-moves
8 Ke8 win in 13 half-moves
9 Ra8 win in 15 half-moves
10 Kcc7 draw
11 Kd5 loss in 2 half-moves
12 Kdc7 loss in 2 half-moves
13 Kdd7 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Rc7 loss in 2 half-moves