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

EGTB: draw

# move score
1 Ka6 draw
2 Ka7 draw
3 Ka8 draw
4 Kb1 draw
5 Kb2 draw
6 Kb6 draw
7 Kb8 draw
8 Kc2 draw
9 Kd1 draw
10 Kd2 draw
11 Ra2 draw
12 Ra3 draw
13 Ra4 draw
14 Ra5 draw
15 Ra6 draw
16 Ra7 draw
17 Rb1 draw
18 Kc6 loss in 2 half-moves
19 Kc7 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Ra8 loss in 2 half-moves