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

EGTB: win in 6 half-moves

# move score
1 f6 win in 5 half-moves
2 Ra6 win in 7 half-moves
3 Ra7 win in 7 half-moves
4 Ra8 win in 7 half-moves
5 Ra3 win in 11 half-moves
6 Ra5 win in 11 half-moves
7 Rh4 win in 11 half-moves
8 Re4 win in 13 half-moves
9 Rf4 win in 13 half-moves
10 Rg4 win in 13 half-moves
11 Ra1 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves