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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Kd2 draw
3 Kd3 draw
4 Kd4 draw
5 Ke4 draw
6 Kf4 draw
7 Ra4 draw
8 Ra5 draw
9 Ra6 draw
10 Ra7 draw
11 Rc3 draw
12 Rd3 draw
13 Ke2 loss in 2 half-moves
14 Kf2 loss in 2 half-moves
15 Kf3 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra8 loss in 2 half-moves