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

EGTB: draw

# move score
1 f7 draw
2 Ra8 draw
3 Rb4 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Rc8 draw
8 Rg8 draw
9 Rh8 draw
10 Rb1 loss in 2 half-moves
11 Rb2 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves