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 Re2 win in 5 half-moves
5 Ka2 draw
6 Ka5 draw
7 Kaa4 draw
8 Kab3 draw
9 Kb2 draw
10 Kb5 draw
11 Kba4 draw
12 Kbb3 draw
13 Rd8 draw
14 Re1 draw
15 Re6 draw
16 Re7 draw
17 Kc3 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Re3 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Re5 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves