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

EGTB: draw

# move score
1 Ka7 draw
2 Kb7 draw
3 Kc7 draw
4 Kc8 draw
5 Ra3 draw
6 Ra4 draw
7 Ra5 draw
8 Ra6 draw
9 Ra7 draw
10 Ra1 loss in 2 half-moves
11 Ra2 loss in 2 half-moves