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 Rg8 win in 3 half-moves
3 Rd8 win in 7 half-moves
4 Rf8 win in 7 half-moves
5 Ra1 draw
6 Ra2 draw
7 Ra3 draw
8 Ra7 draw
9 Rh8 draw
10 Kc4 loss in 2 half-moves
11 Kc5 loss in 2 half-moves
12 Kc6 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Kde4 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Kf2 loss in 2 half-moves
21 Kf4 loss in 2 half-moves
22 Kfe4 loss in 2 half-moves
23 Kg2 loss in 2 half-moves
24 Kg3 loss in 2 half-moves
25 Kg4 loss in 2 half-moves
26 Ra4 loss in 2 half-moves
27 Ra5 loss in 2 half-moves
28 Ra6 loss in 2 half-moves
29 Rb8 loss in 2 half-moves
30 Rc8 loss in 2 half-moves