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

EGTB: loss in 9 half-moves

# move score
1 Rb8 loss in 8 half-moves
2 Rb7 loss in 4 half-moves
3 Kc6 loss in 2 half-moves
4 Kc7 loss in 2 half-moves
5 Kc8 loss in 2 half-moves
6 Kd6 loss in 2 half-moves
7 Kd8 loss in 2 half-moves
8 Ke6 loss in 2 half-moves
9 Ke7 loss in 2 half-moves
10 Ke8 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rb1 loss in 1 half-moves
20 Rf4 loss in 1 half-moves
21 Rg4 loss in 1 half-moves
22 Rh4 loss in 1 half-moves