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

EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Kd6 draw
3 Kd7 draw
4 Kd8 draw
5 Ke6 draw
6 Ke8 draw
7 Kf1 draw
8 Kf6 draw
9 Kf7 draw
10 Kf8 draw
11 Rg2 draw
12 Rg7 draw
13 Rh1 draw
14 Kd1 loss in 2 half-moves
15 Kd2 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Kf2 loss in 2 half-moves
18 Rg3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rg8 loss in 2 half-moves