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

EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Kb4 draw
3 Kb5 draw
4 Kc1 draw
5 Kc2 draw
6 Kc4 draw
7 Kc6 draw
8 Kd2 draw
9 Kd4 draw
10 Kd5 draw
11 Kd6 draw
12 Ke1 draw
13 Ke2 draw
14 Ra8 draw
15 Rb8 draw
16 Rc8 draw
17 Re8 draw
18 Rf1 draw
19 Rf2 draw
20 Rf3 draw
21 Rf7 draw
22 Kb6 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rf5 loss in 2 half-moves
25 Rf6 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves