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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Rg8 win in 3 half-moves
3 Kc7 draw
4 Kc8 draw
5 Kd7 draw
6 Ke7 draw
7 Ke8 draw
8 Rf5 draw
9 Rg2 draw
10 Rg6 draw
11 Rh5 draw
12 Ra5 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rc5 loss in 2 half-moves
15 Rd5 loss in 2 half-moves
16 Re5 loss in 2 half-moves
17 Rg1 loss in 2 half-moves
18 Rg3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves