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 Ka2 draw
4 Ka3 draw
5 Ka4 draw
6 Ka5 draw
7 Kb1 draw
8 Kb2 draw
9 Kb3 draw
10 Kb5 draw
11 Kc3 draw
12 Kc4 draw
13 Rc8 draw
14 Rd8 draw
15 Re8 draw
16 Rf1 draw
17 Rf2 draw
18 Rf6 draw
19 Rf7 draw
20 Kc5 loss in 2 half-moves
21 Rf3 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rf5 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves