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 Kb3 draw
3 Kb4 draw
4 Kb5 draw
5 Kc3 draw
6 Kc5 draw
7 Kd3 draw
8 Ke2 draw
9 Ke3 draw
10 Kf2 draw
11 Kg2 draw
12 Kg3 draw
13 Ra8 draw
14 Rc8 draw
15 Rd8 draw
16 Rh1 draw
17 Rh2 draw
18 Rh3 draw
19 Rh4 draw
20 Kd4 loss in 2 half-moves
21 Kd5 loss in 2 half-moves
22 Ke4 loss in 2 half-moves
23 Kf4 loss in 2 half-moves
24 Kg4 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh5 loss in 2 half-moves
29 Rh6 loss in 2 half-moves
30 Rh7 loss in 2 half-moves