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 Ra1 draw
3 Ra2 draw
4 Ra7 draw
5 Ra8 draw
6 Kf3 loss in 2 half-moves
7 Kf4 loss in 2 half-moves
8 Kf5 loss in 2 half-moves
9 Kg3 loss in 2 half-moves
10 Kg5 loss in 2 half-moves
11 Kh3 loss in 2 half-moves
12 Kh4 loss in 2 half-moves
13 Kh5 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rf4 loss in 2 half-moves