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 Ka2 draw
3 Ka5 draw
4 Ka6 draw
5 Ka7 draw
6 Kb1 draw
7 Kb2 draw
8 Kb5 draw
9 Kb7 draw
10 Kc5 draw
11 Kc6 draw
12 Kc7 draw
13 Rb8 draw
14 Rc8 draw
15 Rd8 draw
16 Re8 draw
17 Rf3 draw
18 Rf1 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rf5 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves