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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rd4 win in 1 half-moves
3 Kc7 loss in 6 half-moves
4 Kc8 loss in 6 half-moves
5 Ra5 loss in 4 half-moves
6 Ra6 loss in 4 half-moves
7 Ra7 loss in 4 half-moves
8 Ra8 loss in 4 half-moves
9 Kd7 loss in 2 half-moves
10 Ke7 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Rh4 loss in 2 half-moves
15 Ra1 loss in 1 half-moves
16 Rc4 loss in 1 half-moves
17 Re4 loss in 1 half-moves
18 Rf4 loss in 1 half-moves
19 Rg4 loss in 1 half-moves