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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Kcb7 win in 7 half-moves
3 Ka7 draw
4 Kbb7 draw
5 Kd8 draw
6 Ra1 draw
7 Ra2 draw
8 Ra3 draw
9 Kbc7 loss in 2 half-moves
10 Kcc7 loss in 2 half-moves
11 Kd7 loss in 2 half-moves
12 Ra4 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves