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 Ka2 draw
3 Kb1 draw
4 Kb2 draw
5 Ke6 draw
6 Ke7 draw
7 Ke8 draw
8 Kf6 draw
9 Kg6 draw
10 Kg7 draw
11 Kg8 draw
12 Rc8 draw
13 Rd8 draw
14 Re8 draw
15 Rg8 draw
16 Rh8 draw
17 Ra8 loss in 1 half-moves