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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Kc7 loss in 16 half-moves
3 Kb7 loss in 12 half-moves
4 Ka7 loss in 10 half-moves
5 Ka8 loss in 10 half-moves
6 Rf7 loss in 6 half-moves
7 Kc8 loss in 4 half-moves
8 Rc8 loss in 2 half-moves
9 Rd8 loss in 2 half-moves
10 Re8 loss in 2 half-moves
11 Rf1 loss in 2 half-moves
12 Rf3 loss in 2 half-moves
13 Rf4 loss in 2 half-moves
14 Rf5 loss in 2 half-moves
15 Rf6 loss in 2 half-moves
16 Rh8 loss in 2 half-moves
17 Rf2 loss in 1 half-moves