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

EGTB: win in 2 half-moves

# move score
1 Ra2 win in 1 half-moves
2 Kc1 draw
3 Kc2 draw
4 Ke1 draw
5 Ke2 draw
6 Rb1 draw
7 Rb6 draw
8 Rb7 draw
9 Rc2 draw
10 Kd1 loss in 16 half-moves
11 Rb8 loss in 6 half-moves
12 Kc3 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Ke3 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves