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 Ka6 draw
3 Ra6 draw
4 Ra7 draw
5 Rc8 draw
6 Rd8 draw
7 Re8 draw
8 Rg8 draw
9 Rh8 draw
10 Ka4 loss in 2 half-moves
11 Rf8 loss in 2 half-moves
12 Kb4 loss in 1 half-moves
13 Kb5 loss in 1 half-moves
14 Kb6 loss in 1 half-moves