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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka5 draw
5 Ka7 draw
6 Kb2 draw
7 Kb5 draw
8 Kb6 draw
9 Kb7 draw
10 Kc1 draw
11 Kc2 draw
12 Ra8 draw
13 Rc8 draw
14 Rd8 draw
15 Re8 draw
16 Rf3 draw
17 Rf1 loss in 2 half-moves
18 Rf2 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rf6 loss in 2 half-moves
22 Rf7 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves