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

EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Ra3 draw
3 Ra4 draw
4 Ra5 draw
5 Ra6 draw
6 Re8 draw
7 Kd6 loss in 2 half-moves
8 Kd7 loss in 2 half-moves
9 Kd8 loss in 2 half-moves
10 Ke6 loss in 2 half-moves
11 Kee8 loss in 2 half-moves
12 Kef7 loss in 2 half-moves
13 Kf6 loss in 2 half-moves
14 Kfe8 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 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Rb8 loss in 2 half-moves
22 Rc8 loss in 2 half-moves