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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Ka2 draw
3 Kb1 draw
4 Kb2 draw
5 Kb7 draw
6 Kd8 draw
7 Ra8 draw
8 Rb1 draw
9 Rb2 draw
10 Rb7 draw
11 Kc7 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves