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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Ka6 draw
3 Ka7 draw
4 Ka8 draw
5 Kb5 draw
6 Kb8 draw
7 Kbb6 draw
8 Kbc7 draw
9 Kc8 draw
10 Kcb6 draw
11 Kcc7 draw
12 Rb8 draw
13 Rc8 draw
14 Rh4 draw
15 Kc5 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kd6 loss in 2 half-moves
18 Kd7 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves
23 Rh1 loss in 2 half-moves
24 Rh2 loss in 2 half-moves
25 Rh3 loss in 2 half-moves
26 Rh5 loss in 2 half-moves
27 Rh6 loss in 2 half-moves
28 Rh7 loss in 2 half-moves