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

EGTB: draw

# move score
1 Ka6 draw
2 Kb6 draw
3 Kc6 draw
4 Kc7 draw
5 Kc8 draw
6 Ra3 draw
7 Ra4 draw
8 Ra8 draw
9 Ka8 loss in 2 half-moves
10 Kb8 loss in 2 half-moves
11 Ra1 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves