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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Kc4 draw
3 Kd4 draw
4 Kd5 draw
5 Ra5 draw
6 Rb3 draw
7 Rb6 draw
8 Rb7 draw
9 Kb4 loss in 4 half-moves
10 Kb6 loss in 2 half-moves
11 Kc6 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb8 loss in 2 half-moves