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

EGTB: win in 2 half-moves

# move score
1 Ra3 win in 1 half-moves
2 Kf2 draw
3 Kf3 draw
4 Kf4 draw
5 Kg2 draw
6 Kg4 draw
7 Kh2 draw
8 Kh3 draw
9 Kh4 draw
10 Rb2 draw
11 Rb4 draw
12 Re3 draw
13 Rb5 loss in 4 half-moves
14 Rb6 loss in 4 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rd3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rb1 loss in 1 half-moves