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

EGTB: draw

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