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

EGTB: loss in 21 half-moves

# move score
1 Kb7 loss in 20 half-moves
2 Ra8 loss in 4 half-moves
3 Kc7 loss in 2 half-moves
4 Kd7 loss in 2 half-moves
5 Kd8 loss in 2 half-moves
6 Rb3 loss in 2 half-moves
7 Rb4 loss in 2 half-moves
8 Rb5 loss in 2 half-moves
9 Rb6 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rb1 loss in 1 half-moves
12 Rb2 loss in 1 half-moves