Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rd8 draw
3 Re8 draw
4 Rf8 draw
5 Rg1 draw
6 Rg2 draw
7 Rg3 draw
8 Rg7 draw
9 Rh8 draw
10 Ra8 loss in 2 half-moves
11 Rc8 loss in 2 half-moves
12 Rg4 loss in 2 half-moves
13 Rg5 loss in 2 half-moves
14 Rg6 loss in 2 half-moves