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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Ra1 win in 3 half-moves
3 Ra3 win in 3 half-moves
4 Rb6 win in 3 half-moves
5 Ka1 win in 5 half-moves
6 Ka2 win in 5 half-moves
7 Kb3 win in 5 half-moves
8 Kc3 win in 5 half-moves
9 Ra2 win in 5 half-moves
10 Ka3 win in 7 half-moves
11 Kc2 win in 7 half-moves
12 Kd6 win in 7 half-moves
13 Kb1 draw
14 Kc1 draw
15 Ra4 draw
16 Ra8 draw
17 Kb5 loss in 2 half-moves
18 Kb7 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kc7 loss in 2 half-moves
21 Kd5 loss in 2 half-moves
22 Kd7 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra7 loss in 2 half-moves