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

EGTB: win in 2 half-moves

# move score
1 Ra1 win in 1 half-moves
2 Kb7 loss in 20 half-moves
3 Ra8 loss in 20 half-moves
4 Rc4 loss in 20 half-moves
5 Ka7 loss in 4 half-moves
6 Ka8 loss in 4 half-moves
7 Kc7 loss in 4 half-moves
8 Kc8 loss in 4 half-moves
9 Rb4 loss in 4 half-moves
10 Ra2 loss in 2 half-moves
11 Ra3 loss in 2 half-moves
12 Ra5 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rh4 loss in 1 half-moves