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

EGTB: loss in 17 half-moves

# move score
1 Rb7 loss in 16 half-moves
2 Rb8 loss in 8 half-moves
3 Rb1 loss in 4 half-moves
4 Rb6 loss in 4 half-moves
5 Kc7 loss in 2 half-moves
6 Kc8 loss in 2 half-moves
7 Kd7 loss in 2 half-moves
8 Ke7 loss in 2 half-moves
9 Ke8 loss in 2 half-moves
10 Rb3 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rc5 loss in 2 half-moves
13 Rd5 loss in 2 half-moves
14 Re5 loss in 2 half-moves
15 Ra5 loss in 1 half-moves
16 Rb2 loss in 1 half-moves
17 Rf5 loss in 1 half-moves
18 Rg5 loss in 1 half-moves
19 Rh5 loss in 1 half-moves