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 Rc8 win in 5 half-moves
4 Re1 win in 5 half-moves
5 Re2 win in 5 half-moves
6 Ka1 draw
7 Ka4 draw
8 Kaa2 draw
9 Kab2 draw
10 Kb3 draw
11 Kb4 draw
12 Kba2 draw
13 Kbb2 draw
14 Kc1 draw
15 Kc2 draw
16 Rd8 draw
17 Re6 draw
18 Re7 draw
19 Rf8 draw
20 Re3 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Re5 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves