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

EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Ke4 win in 7 half-moves
3 Kd4 draw
4 Kd5 draw
5 Kd6 draw
6 Ke6 draw
7 Kf6 draw
8 Ra7 draw
9 Rb7 draw
10 Rc7 draw
11 Rd7 draw
12 Re6 draw
13 Re8 draw
14 Kf4 loss in 2 half-moves
15 Kf5 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Rh7 loss in 2 half-moves