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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ra8 draw
3 Rc8 draw
4 Rd8 draw
5 Re8 draw
6 Rf1 draw
7 Rf2 draw
8 Rf3 draw
9 Rf6 draw
10 Kg7 loss in 2 half-moves
11 Kg8 loss in 2 half-moves
12 Kh7 loss in 2 half-moves
13 Rf4 loss in 2 half-moves
14 Rf5 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rg8 loss in 2 half-moves