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

EGTB: win in 6 half-moves

# move score
1 Rg8 win in 5 half-moves
2 Kg7 win in 9 half-moves
3 Kg8 win in 9 half-moves
4 Kh8 win in 9 half-moves
5 Kg6 win in 17 half-moves
6 Rh8 win in 29 half-moves
7 Kb7 draw
8 Kb8 draw
9 Kh6 draw
10 Re8 draw
11 Rf8 draw
12 Kc7 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Rd2 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Rd7 loss in 2 half-moves