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

EGTB: win in 4 half-moves

# move score
1 Rf3 win in 3 half-moves
2 Rg1 draw
3 Rg5 draw
4 Rg6 draw
5 Rg7 draw
6 Kb4 loss in 2 half-moves
7 Kb5 loss in 2 half-moves
8 Kb6 loss in 2 half-moves
9 Kc4 loss in 2 half-moves
10 Kc6 loss in 2 half-moves
11 Kcd4 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Ke4 loss in 2 half-moves
18 Ked4 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Kf3 loss in 2 half-moves
21 Kf4 loss in 2 half-moves
22 Rg2 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh3 loss in 2 half-moves