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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Re4 win in 3 half-moves
4 Rc8 win in 5 half-moves
5 Ka3 draw
6 Ka4 draw
7 Kaa2 draw
8 Kab2 draw
9 Kb1 draw
10 Kb4 draw
11 Kba2 draw
12 Kbb2 draw
13 Kc2 draw
14 Kc3 draw
15 Kc4 draw
16 Rd8 draw
17 Re5 draw
18 Re6 draw
19 Re7 draw
20 Rf8 draw
21 Re1 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves