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

EGTB: win in 10 half-moves

# move score
1 Ra8 win in 9 half-moves
2 Rb8 draw
3 Rd8 draw
4 Rg1 draw
5 Ka4 loss in 2 half-moves
6 Ka7 loss in 2 half-moves
7 Kaa6 loss in 2 half-moves
8 Kab5 loss in 2 half-moves
9 Kb4 loss in 2 half-moves
10 Kb7 loss in 2 half-moves
11 Kba6 loss in 2 half-moves
12 Kbb5 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Kc7 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rg7 loss in 2 half-moves
25 Rh8 loss in 2 half-moves