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 Ka6 draw
3 Ka8 draw
4 Kb2 draw
5 Kb3 draw
6 Kb4 draw
7 Kb6 draw
8 Kb7 draw
9 Kb8 draw
10 Kc2 draw
11 Kc4 draw
12 Kd2 draw
13 Kd3 draw
14 Ra8 draw
15 Rc8 draw
16 Rd8 draw
17 Rh1 draw
18 Kd4 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh2 loss in 2 half-moves
23 Rh3 loss in 2 half-moves
24 Rh4 loss in 2 half-moves
25 Rh5 loss in 2 half-moves
26 Rh6 loss in 2 half-moves
27 Rh7 loss in 2 half-moves