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