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

EGTB: win in 4 half-moves

# move score
1 Ka7 win in 3 half-moves
2 Ka8 draw
3 Kb1 draw
4 Kb2 draw
5 Kb3 draw
6 Kb7 draw
7 Kc1 draw
8 Kc3 draw
9 Kc7 draw
10 Kc8 draw
11 Kd1 draw
12 Kd2 draw
13 Kd3 draw
14 Ra1 draw
15 Ra6 draw
16 Ra7 draw
17 Ra8 draw
18 Rb2 draw
19 Ra3 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Ra5 loss in 2 half-moves