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 Re3 win in 1 half-moves
3 Re6 win in 1 half-moves
4 Rd8 draw
5 Re4 draw
6 Rc8 loss in 18 half-moves
7 Ra8 loss in 6 half-moves
8 Ke7 loss in 2 half-moves
9 Kf7 loss in 2 half-moves
10 Kg7 loss in 2 half-moves
11 Kg8 loss in 2 half-moves
12 Re1 loss in 2 half-moves
13 Re2 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Re5 loss in 1 half-moves