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

EGTB: win in 4 half-moves

# move score
1 Re8 win in 3 half-moves
2 Kb1 loss in 6 half-moves
3 Kb2 loss in 6 half-moves
4 Kb3 loss in 6 half-moves
5 Ka1 loss in 4 half-moves
6 Ka3 loss in 4 half-moves
7 Ra6 loss in 4 half-moves
8 Ra7 loss in 4 half-moves
9 Rb8 loss in 4 half-moves
10 Rc8 loss in 4 half-moves
11 Rd8 loss in 4 half-moves
12 Ra3 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Rh8 loss in 2 half-moves