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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kc1 draw
5 Kc2 draw
6 Kc6 draw
7 Kc8 draw
8 Kd2 draw
9 Kd6 draw
10 Kd7 draw
11 Kd8 draw
12 Ra1 draw
13 Ra5 draw
14 Ra6 draw
15 Ra8 draw
16 Rb7 draw
17 Ke1 loss in 2 half-moves
18 Ke2 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra3 loss in 2 half-moves
21 Ra4 loss in 2 half-moves