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

EGTB: win in 2 half-moves

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