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 Kc7 win in 3 half-moves
5 Rb1 win in 3 half-moves
6 Ka7 win in 7 half-moves
7 Ka5 draw
8 Kc5 draw
9 Kc6 draw
10 Kd5 draw
11 Kd7 draw
12 Ra2 draw
13 Ra3 draw
14 Rc1 draw
15 Rd1 draw
16 Ke5 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rh1 loss in 2 half-moves