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

EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Kg3 draw
3 Ra1 draw
4 Rb1 draw
5 Rc1 draw
6 Rg2 draw
7 Kf3 loss in 2 half-moves
8 Kf4 loss in 2 half-moves
9 Kf5 loss in 2 half-moves
10 Kg5 loss in 2 half-moves
11 Kh3 loss in 2 half-moves
12 Kh4 loss in 2 half-moves
13 Kh5 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rh1 loss in 2 half-moves