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

EGTB: win in 4 half-moves

# move score
1 Rf2 win in 3 half-moves
2 Kb6 win in 5 half-moves
3 Kb7 win in 5 half-moves
4 Kb8 win in 5 half-moves
5 Kc6 win in 5 half-moves
6 Kc8 win in 5 half-moves
7 Kd6 win in 5 half-moves
8 Kd7 win in 5 half-moves
9 Kd8 win in 5 half-moves
10 Rf5 win in 5 half-moves
11 Rf6 win in 5 half-moves
12 Rf8 win in 5 half-moves
13 Rg7 win in 5 half-moves
14 Rh7 win in 5 half-moves
15 Rd7 loss in 2 half-moves
16 Re7 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rf4 loss in 2 half-moves