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

EGTB: win in 4 half-moves

# move score
1 Ra6 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Rd6 win in 5 half-moves
4 Re6 win in 5 half-moves
5 Ka4 draw
6 Ka5 draw
7 Ka6 draw
8 Ka7 draw
9 Kb6 draw
10 Kb7 draw
11 Kb8 draw
12 Kc4 draw
13 Kc5 draw
14 Kc6 draw
15 Rc6 draw
16 Rf3 draw
17 Rf4 draw
18 Rf5 draw
19 Rf7 draw
20 Rf8 draw
21 Kb4 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rf2 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rh6 loss in 2 half-moves