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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kc7 draw
7 Kd5 draw
8 Kd6 draw
9 Kd7 draw
10 Ra2 draw
11 Rb2 draw
12 Rc2 draw
13 Rd2 draw
14 Re2 draw
15 Rf1 draw
16 Rf5 draw
17 Rf6 draw
18 Rf3 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg2 loss in 2 half-moves
22 Rh2 loss in 2 half-moves