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

EGTB: win in 2 half-moves

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