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

EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Rg6 win in 3 half-moves
3 Rg7 win in 5 half-moves
4 Kee4 win in 7 half-moves
5 Kef4 win in 7 half-moves
6 Kef6 win in 7 half-moves
7 Kff4 win in 7 half-moves
8 Rg8 win in 7 half-moves
9 Kd5 draw
10 Kd6 draw
11 Kee6 draw
12 Kfe4 draw
13 Kfe6 draw
14 Kff6 draw
15 Kg4 draw
16 Kg6 draw
17 Rg3 draw
18 Rh5 draw
19 Kd4 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rg2 loss in 2 half-moves