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 Re6 win in 3 half-moves
4 Re1 win in 7 half-moves
5 Re2 win in 17 half-moves
6 Ka1 draw
7 Ka2 draw
8 Ka3 draw
9 Ka4 draw
10 Ka6 draw
11 Kb1 draw
12 Kb3 draw
13 Kb4 draw
14 Kb5 draw
15 Kb6 draw
16 Kc1 draw
17 Rc8 draw
18 Rd8 draw
19 Re7 draw
20 Kc2 loss in 2 half-moves
21 Kc3 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Re5 loss in 2 half-moves
25 Rf8 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves