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

EGTB: win in 2 half-moves

# move score
1 Ra2 win in 1 half-moves
2 Kb6 loss in 10 half-moves
3 Ka8 loss in 8 half-moves
4 Kb7 loss in 8 half-moves
5 Kb8 loss in 8 half-moves
6 Ra1 loss in 8 half-moves
7 Ra3 loss in 8 half-moves
8 Ka6 loss in 6 half-moves
9 Rb4 loss in 6 half-moves
10 Rc4 loss in 4 half-moves
11 Rh4 loss in 4 half-moves
12 Ra5 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Rd4 loss in 2 half-moves
15 Re4 loss in 2 half-moves
16 Rf4 loss in 2 half-moves
17 Rg4 loss in 1 half-moves