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 Rf8 draw
4 Rg8 draw
5 Kg6 loss in 20 half-moves
6 Kh6 loss in 6 half-moves
7 Kg8 loss in 4 half-moves
8 Ra8 loss in 2 half-moves
9 Rc8 loss in 2 half-moves
10 Rd8 loss in 2 half-moves
11 Re8 loss in 2 half-moves