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

EGTB: win in 8 half-moves

# move score
1 Re8 win in 7 half-moves
2 Ra8 draw
3 Rb1 draw
4 Rb7 draw
5 Rc8 draw
6 Rb2 loss in 2 half-moves
7 Rb3 loss in 2 half-moves
8 Rb4 loss in 2 half-moves
9 Rb5 loss in 2 half-moves
10 Rb6 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Rf8 loss in 2 half-moves
13 Rg8 loss in 2 half-moves
14 Rh8 loss in 2 half-moves