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 Ka5 draw
3 Ka7 draw
4 Kb6 draw
5 Kb7 draw
6 Kd2 draw
7 Kd3 draw
8 Kd4 draw
9 Ke2 draw
10 Kf2 draw
11 Kf3 draw
12 Ra1 draw
13 Ra2 draw
14 Ra4 draw
15 Rb3 draw
16 Rc3 draw
17 Rd3 draw
18 Ke4 loss in 2 half-moves
19 Kf4 loss in 2 half-moves
20 Ra5 loss in 2 half-moves