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

EGTB: win in 2 half-moves

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