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 Kd2 draw
3 Kd4 draw
4 Ke2 draw
5 Ke3 draw
6 Ke4 draw
7 Re3 draw
8 Rf6 draw
9 Rf8 draw
10 Rh3 draw
11 Kc2 loss in 2 half-moves
12 Kc3 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Rf1 loss in 2 half-moves
15 Rf2 loss in 2 half-moves
16 Rf4 loss in 2 half-moves
17 Rf5 loss in 2 half-moves
18 Rf7 loss in 1 half-moves