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

EGTB: win in 2 half-moves

# move score
1 Rg2 win in 1 half-moves
2 Re7 draw
3 Rh7 draw
4 Kc6 loss in 2 half-moves
5 Kc8 loss in 2 half-moves
6 Kd6 loss in 2 half-moves
7 Kd8 loss in 2 half-moves
8 Ke6 loss in 2 half-moves
9 Ke8 loss in 2 half-moves
10 Rf7 loss in 2 half-moves
11 Rg1 loss in 2 half-moves
12 Rg3 loss in 2 half-moves
13 Rg4 loss in 2 half-moves
14 Rg5 loss in 2 half-moves
15 Rg6 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Kc7 loss in 1 half-moves
18 Ke7 loss in 1 half-moves