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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Kcd6 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Kc6 win in 7 half-moves
6 Kd8 win in 7 half-moves
7 Ke6 win in 7 half-moves
8 Kf6 win in 7 half-moves
9 Kf7 win in 7 half-moves
10 Rc6 win in 7 half-moves
11 Rc8 win in 7 half-moves
12 Kc4 win in 9 half-moves
13 Kd7 win in 9 half-moves
14 Ke8 win in 9 half-moves
15 Kf8 win in 13 half-moves
16 Ra7 win in 13 half-moves
17 Kb4 draw
18 Ked6 draw
19 Rd7 draw
20 Kd4 loss in 2 half-moves
21 Kd5 loss in 2 half-moves