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

EGTB: win in 4 half-moves

# move score
1 Rd5 win in 3 half-moves
2 Ra5 draw
3 Rb5 draw
4 Rc5 draw
5 Re5 draw
6 Rh1 draw
7 Rh2 draw
8 Rh3 draw
9 Rh4 draw
10 Kd7 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Kee7 loss in 2 half-moves
13 Kef7 loss in 2 half-moves
14 Kfe7 loss in 2 half-moves
15 Kff7 loss in 2 half-moves
16 Kg7 loss in 2 half-moves
17 Kg8 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rh6 loss in 2 half-moves
21 Rh7 loss in 2 half-moves
22 Rh8 loss in 2 half-moves