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

EGTB: win in 2 half-moves

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