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

EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Ra8 win in 5 half-moves
3 Rb8 win in 5 half-moves
4 Ka2 draw
5 Ka5 draw
6 Kaa4 draw
7 Kab3 draw
8 Kb2 draw
9 Kb5 draw
10 Kba4 draw
11 Kbb3 draw
12 Rd8 draw
13 Rh1 draw
14 Rh2 draw
15 Rh6 draw
16 Rh7 draw
17 Kc3 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves
23 Rh3 loss in 2 half-moves
24 Rh4 loss in 2 half-moves
25 Rh5 loss in 2 half-moves