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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Ra4 draw
3 Rb4 draw
4 Rc4 draw
5 Rd4 draw
6 Re4 draw
7 Rh5 draw
8 Rh6 draw
9 Rh7 draw
10 K7b8 loss in 2 half-moves
11 Ka6 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 K7b7 loss in 1 half-moves
14 K8b7 loss in 1 half-moves
15 K8b8 loss in 1 half-moves
16 Rf4 loss in 1 half-moves
17 Rh1 loss in 1 half-moves
18 Rh2 loss in 1 half-moves
19 Rh3 loss in 1 half-moves
20 Rh8 loss in 1 half-moves