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 Kcd6 win in 3 half-moves
5 Kd4 win in 3 half-moves
6 Kd5 win in 3 half-moves
7 Rb7 win in 3 half-moves
8 Rc8 win in 5 half-moves
9 Kcc6 win in 7 half-moves
10 Kd8 win in 7 half-moves
11 Kdd6 win in 7 half-moves
12 Ke6 win in 7 half-moves
13 Ke7 win in 7 half-moves
14 Kc4 win in 9 half-moves
15 Kc8 win in 9 half-moves
16 Kdc6 win in 9 half-moves
17 Ke8 win in 9 half-moves
18 Ra7 win in 9 half-moves
19 Rc6 loss in 2 half-moves