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

EGTB: win in 2 half-moves

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