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 Rc2 win in 7 half-moves
3 Kc4 win in 11 half-moves
4 Kd4 win in 11 half-moves
5 Rb2 win in 13 half-moves
6 Kd2 win in 15 half-moves
7 Ke1 win in 17 half-moves
8 Ra1 win in 23 half-moves
9 Kb5 draw
10 Kb6 draw
11 Kc6 draw
12 Kd5 draw
13 Kd6 draw
14 Kf1 draw
15 Kf3 draw
16 Ra3 draw
17 Ra5 draw
18 Ra8 draw
19 Rd2 draw
20 Kd1 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Ke3 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Ra6 loss in 2 half-moves
25 Ra7 loss in 2 half-moves
26 Kf2 loss in 1 half-moves