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

EGTB: draw

# move score
1 Ka7 draw
2 Kb2 draw
3 Kb7 draw
4 Kb8 draw
5 Kc2 draw
6 Kd1 draw
7 Kd2 draw
8 Ra1 draw
9 Rb2 draw
10 Rb3 draw
11 Rb4 draw
12 Rb8 draw
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves