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

EGTB: win in 4 half-moves

# move score
1 Rh8 win in 3 half-moves
2 Rh6 win in 5 half-moves
3 Rd4 draw
4 Re4 draw
5 Rf4 draw
6 Rg4 draw
7 Rh1 draw
8 Rh5 draw
9 Rh7 draw
10 K7a7 loss in 2 half-moves
11 K7a8 loss in 2 half-moves
12 K7c7 loss in 2 half-moves
13 K7c8 loss in 2 half-moves
14 K8a7 loss in 2 half-moves
15 K8a8 loss in 2 half-moves
16 K8c7 loss in 2 half-moves
17 K8c8 loss in 2 half-moves
18 Ka6 loss in 2 half-moves
19 Kb6 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Ra4 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rc4 loss in 2 half-moves
24 Rh2 loss in 2 half-moves
25 Rh3 loss in 2 half-moves