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

EGTB: win in 2 half-moves

# move score
1 Rg3 win in 1 half-moves
2 K7b7 draw
3 K8b7 draw
4 K8b8 draw
5 Ra1 draw
6 Ra2 draw
7 Ra4 draw
8 Ra5 draw
9 Rb3 draw
10 Rc3 draw
11 Rd3 draw
12 Re3 draw
13 K7b8 loss in 2 half-moves
14 Ka6 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Ra6 loss in 1 half-moves
17 Rf3 loss in 1 half-moves
18 Rh3 loss in 1 half-moves