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

EGTB: win in 2 half-moves

# move score
1 Rf6 win in 1 half-moves
2 Rg6 draw
3 Kb4 loss in 2 half-moves
4 Kb5 loss in 2 half-moves
5 Kb6 loss in 2 half-moves
6 Kcc4 loss in 2 half-moves
7 Kcd4 loss in 2 half-moves
8 Kcd6 loss in 2 half-moves
9 Kdc4 loss in 2 half-moves
10 Kdd4 loss in 2 half-moves
11 Kdd6 loss in 2 half-moves
12 Ke4 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Rh6 loss in 2 half-moves
20 Ke6 loss in 1 half-moves
21 Re6 loss in 1 half-moves