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 Kf3 draw
3 Kf4 draw
4 Kg3 draw
5 Kg5 draw
6 Kh3 draw
7 Kh4 draw
8 Kh5 draw
9 Ra3 draw
10 Ra5 draw
11 Ra6 draw
12 Ra1 loss in 4 half-moves
13 Kf5 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Ra2 loss in 1 half-moves