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

EGTB: draw

# move score
1 f7 draw
2 Ra6 draw
3 Ra8 draw
4 Rb7 draw
5 Rc7 draw
6 Rd7 draw
7 Re7 draw
8 Rf7 draw
9 Rg7 draw
10 Ra1 loss in 2 half-moves
11 Ra2 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Rh7 loss in 2 half-moves