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 Kc7 win in 3 half-moves
3 Kd7 win in 3 half-moves
4 Kb8 win in 7 half-moves
5 Ka3 draw
6 Ka4 draw
7 Ka5 draw
8 Kb3 draw
9 Kb5 draw
10 Kd8 draw
11 Ra1 draw
12 Ra4 draw
13 Ra5 draw
14 Ra6 draw
15 Ra7 draw
16 Rb8 draw
17 Kc3 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Ra3 loss in 2 half-moves