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 Kg8 draw
4 Kh7 draw
5 Ra8 draw
6 Rc8 draw
7 Rd8 draw
8 Re4 draw
9 Re5 draw
10 Re6 draw
11 Re7 draw
12 Rf8 draw
13 Re1 loss in 2 half-moves
14 Re2 loss in 2 half-moves
15 Re3 loss in 2 half-moves
16 Rg8 loss in 2 half-moves