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

EGTB: loss in 11 half-moves

# move score
1 Rb8 loss in 10 half-moves
2 Kb8 loss in 8 half-moves
3 Ra6 loss in 6 half-moves
4 Kd8 loss in 4 half-moves
5 Ra1 loss in 4 half-moves
6 Ra2 loss in 4 half-moves
7 Kb7 loss in 2 half-moves
8 Kc7 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Ra3 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Ra5 loss in 2 half-moves
13 Ra7 loss in 2 half-moves