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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kb6 win in 3 half-moves
4 Kcd5 win in 3 half-moves
5 Kcd6 win in 3 half-moves
6 Kd4 win in 3 half-moves
7 Rb6 win in 3 half-moves
8 Rd6 win in 3 half-moves
9 Kc4 win in 5 half-moves
10 Ked6 draw
11 Ra6 draw
12 Kd7 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Ked5 loss in 2 half-moves
16 Kf5 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rc8 loss in 2 half-moves