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

EGTB: loss in 13 half-moves

# move score
1 Rb8 loss in 12 half-moves
2 Kb7 loss in 8 half-moves
3 Kc8 loss in 8 half-moves
4 Rc6 loss in 8 half-moves
5 Kc6 loss in 6 half-moves
6 Rb7 loss in 6 half-moves
7 Kb8 loss in 4 half-moves
8 Kd6 loss in 4 half-moves
9 Kd7 loss in 4 half-moves
10 Kd8 loss in 4 half-moves
11 Ra6 loss in 4 half-moves
12 Rd6 loss in 4 half-moves
13 Rb1 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rh6 loss in 2 half-moves