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 Kb2 draw
5 Kb5 draw
6 Kb6 draw
7 Kb7 draw
8 Kc1 draw
9 Kc2 draw
10 Kc5 draw
11 Kc7 draw
12 Kd5 draw
13 Kd6 draw
14 Kd7 draw
15 Ra8 draw
16 Rc8 draw
17 Rd8 draw
18 Re8 draw
19 Rf3 draw
20 Rf1 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rf5 loss in 2 half-moves
24 Rf6 loss in 2 half-moves
25 Rf7 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves