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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 f8=K draw
3 f8=N draw
4 Ra5 draw
5 Ra1 loss in 4 half-moves
6 Ra6 loss in 4 half-moves
7 Rb7 loss in 4 half-moves
8 Rc7 loss in 4 half-moves
9 f8=B loss in 2 half-moves
10 f8=Q loss in 2 half-moves
11 f8=R loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Re7 loss in 2 half-moves