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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Ka7 draw
3 Kb1 draw
4 Kb7 draw
5 Kc2 draw
6 Kc7 draw
7 Kc8 draw
8 Kd1 draw
9 Kd2 draw
10 Ra1 draw
11 Ra3 draw
12 Ra2 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Ra7 loss in 2 half-moves