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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb5 draw
5 Ke7 draw
6 Ke8 draw
7 Kf8 draw
8 Kg7 draw
9 Kg8 draw
10 Ra5 draw
11 Rb4 draw
12 Rc4 draw
13 Rg4 draw
14 Rh4 draw
15 Kb6 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Kg6 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Rd4 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Rf4 loss in 2 half-moves