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 Ke7 draw
3 Ke8 draw
4 Kf7 draw
5 Kg7 draw
6 Kg8 draw
7 Ra7 draw
8 Rc8 draw
9 Rd8 draw
10 Re8 draw
11 Ra3 loss in 4 half-moves
12 Ra1 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 1 half-moves