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

EGTB: loss in 15 half-moves

# move score
1 Kb7 loss in 14 half-moves
2 Kb8 loss in 6 half-moves
3 Kc7 loss in 6 half-moves
4 Kd7 loss in 6 half-moves
5 Rb8 loss in 6 half-moves
6 Kd8 loss in 4 half-moves
7 Ra5 loss in 4 half-moves
8 Ra6 loss in 4 half-moves
9 Ra7 loss in 4 half-moves
10 Ra1 loss in 2 half-moves
11 Ra2 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Ra4 loss in 2 half-moves