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