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

EGTB: win in 2 half-moves

# move score
1 Kb2 win in 1 half-moves
2 Kc2 win in 1 half-moves
3 Ka2 draw
4 Ra2 draw
5 Ra3 draw
6 Ra4 draw
7 Ra7 draw
8 Ra8 draw
9 Kc1 loss in 4 half-moves
10 Ra5 loss in 2 half-moves
11 Ra6 loss in 2 half-moves