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 Kb7 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Rd7 win in 3 half-moves
6 Kd8 win in 7 half-moves
7 Ke8 win in 7 half-moves
8 Ked6 win in 7 half-moves
9 Kf6 win in 7 half-moves
10 Kf8 win in 7 half-moves
11 Ra8 win in 7 half-moves
12 Rc7 win in 9 half-moves
13 Ke6 win in 11 half-moves
14 Kf7 win in 11 half-moves
15 Kc5 win in 13 half-moves
16 Kc7 draw
17 Kcd6 draw
18 Kcd7 draw
19 Kd5 draw
20 Ked7 draw
21 Ra1 draw
22 Ra5 draw
23 Ra6 draw
24 Ra2 loss in 2 half-moves
25 Ra3 loss in 2 half-moves
26 Ra4 loss in 2 half-moves