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

EGTB: win in 4 half-moves

# move score
1 Re8 win in 3 half-moves
2 Rf8 win in 3 half-moves
3 Rg8 win in 3 half-moves
4 Rh8 win in 3 half-moves
5 Ra1 draw
6 Ra2 draw
7 Ra3 draw
8 Ra5 draw
9 Rd8 draw
10 Ke1 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Kf3 loss in 2 half-moves
13 Kf4 loss in 2 half-moves
14 Kff2 loss in 2 half-moves
15 Kfg2 loss in 2 half-moves
16 Kg1 loss in 2 half-moves
17 Kg4 loss in 2 half-moves
18 Kgf2 loss in 2 half-moves
19 Kgg2 loss in 2 half-moves
20 Kh2 loss in 2 half-moves
21 Kh3 loss in 2 half-moves
22 Kh4 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Ra6 loss in 2 half-moves
25 Ra7 loss in 2 half-moves
26 Rb8 loss in 2 half-moves
27 Rc8 loss in 2 half-moves