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 Kd2 win in 3 half-moves
3 Kd4 win in 3 half-moves
4 Ke4 win in 3 half-moves
5 Rc3 win in 3 half-moves
6 Rd3 win in 3 half-moves
7 Kb6 win in 5 half-moves
8 Kc5 win in 5 half-moves
9 Kd5 win in 5 half-moves
10 Kd6 win in 5 half-moves
11 Kd7 win in 5 half-moves
12 Ra2 win in 5 half-moves
13 Ra4 win in 5 half-moves
14 Ra5 win in 5 half-moves
15 Rb3 win in 5 half-moves
16 Kd3 win in 7 half-moves
17 Kb7 win in 11 half-moves
18 Kc7 win in 13 half-moves
19 Ke2 draw
20 Kf2 draw
21 Kf3 draw
22 Kf4 draw
23 Ra1 draw
24 Ra6 draw
25 Ra7 loss in 2 half-moves
26 Ra8 loss in 2 half-moves