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 Ka4 draw
3 Ka5 draw
4 Ka6 draw
5 Kb4 draw
6 Kb7 draw
7 Kbb6 draw
8 Kbc5 draw
9 Kc7 draw
10 Kcb6 draw
11 Kcc5 draw
12 Rb8 draw
13 Rc8 draw
14 Rh3 draw
15 Rh7 draw
16 Kc4 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh1 loss in 2 half-moves
25 Rh2 loss in 2 half-moves
26 Rh4 loss in 2 half-moves
27 Rh5 loss in 2 half-moves
28 Rh6 loss in 2 half-moves