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