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

EGTB: win in 4 half-moves

# move score
1 Rh4 win in 3 half-moves
2 Rh6 win in 3 half-moves
3 Rh7 win in 3 half-moves
4 Ra2 draw
5 Rd2 draw
6 Re2 draw
7 Rf2 draw
8 Rh3 draw
9 Rh5 draw
10 Rh8 draw
11 Kb4 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Kb8 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Kc7 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Kd5 loss in 2 half-moves
21 Kd6 loss in 2 half-moves
22 Kd7 loss in 2 half-moves
23 Kd8 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Rc2 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rh1 loss in 2 half-moves