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 Ka4 draw
3 Ka6 draw
4 Kab5 draw
5 Kab6 draw
6 Kb4 draw
7 Kb7 draw
8 Kc5 draw
9 Kc7 draw
10 Kcb5 draw
11 Kcb6 draw
12 Kd6 draw
13 Kd7 draw
14 Ra8 draw
15 Rc8 draw
16 Rd8 draw
17 Rh1 draw
18 Rh5 draw
19 Rh6 draw
20 Rh7 draw
21 Kd5 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh2 loss in 2 half-moves
26 Rh3 loss in 2 half-moves
27 Rh4 loss in 2 half-moves