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 Rc8 loss in 10 half-moves
3 Rd8 loss in 10 half-moves
4 Kg7 loss in 2 half-moves
5 Kg8 loss in 2 half-moves
6 Kh7 loss in 2 half-moves
7 Ra8 loss in 2 half-moves
8 Re4 loss in 2 half-moves
9 Re5 loss in 2 half-moves
10 Re6 loss in 2 half-moves
11 Re7 loss in 2 half-moves
12 Rf8 loss in 2 half-moves
13 Rg8 loss in 2 half-moves
14 Re1 loss in 1 half-moves
15 Re2 loss in 1 half-moves
16 Re3 loss in 1 half-moves