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

EGTB: win in 4 half-moves

# move score
1 K7f7 win in 3 half-moves
2 K8f7 win in 3 half-moves
3 Rf7 win in 3 half-moves
4 K8f8 draw
5 Rg2 draw
6 Rg8 draw
7 Rh7 draw
8 K7d7 loss in 2 half-moves
9 K7d8 loss in 2 half-moves
10 K7f8 loss in 2 half-moves
11 K8d7 loss in 2 half-moves
12 K8d8 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Kf6 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rg6 loss in 2 half-moves