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