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

EGTB: win in 4 half-moves

# move score
1 Rf3 win in 3 half-moves
2 Rh1 win in 9 half-moves
3 Rh2 win in 9 half-moves
4 Ka2 draw
5 Kb1 draw
6 Kb2 draw
7 Kd2 draw
8 Kd3 draw
9 Ke2 draw
10 Ke4 draw
11 Kf2 draw
12 Kf3 draw
13 Kf4 draw
14 Rg3 draw
15 Rh4 draw
16 Rh8 draw
17 Kd4 loss in 2 half-moves
18 Rh5 loss in 2 half-moves
19 Rh6 loss in 2 half-moves
20 Rh7 loss in 2 half-moves