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 Ka6 loss in 10 half-moves
3 Ra5 loss in 10 half-moves
4 Ka8 loss in 6 half-moves
5 Ra2 loss in 6 half-moves
6 Ra3 loss in 6 half-moves
7 Rb1 loss in 6 half-moves
8 Rh1 loss in 4 half-moves
9 Kb6 loss in 2 half-moves
10 Kb7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Ra6 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rg1 loss in 1 half-moves