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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Ka2 loss in 10 half-moves
3 Kb2 loss in 10 half-moves
4 Kb3 loss in 10 half-moves
5 Kb4 loss in 8 half-moves
6 Ka4 loss in 6 half-moves
7 Rb8 loss in 6 half-moves
8 Rc8 loss in 4 half-moves
9 Rd8 loss in 4 half-moves
10 Ra4 loss in 2 half-moves
11 Ra5 loss in 2 half-moves
12 Ra6 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh8 loss in 1 half-moves