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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Kb4 loss in 4 half-moves
3 Kb5 loss in 4 half-moves
4 Rc2 loss in 4 half-moves
5 Kb6 loss in 2 half-moves
6 Kc4 loss in 2 half-moves
7 Kc6 loss in 2 half-moves
8 Kd4 loss in 2 half-moves
9 Kd5 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rd2 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Rg2 loss in 2 half-moves
21 Rh2 loss in 2 half-moves
22 Ra2 loss in 1 half-moves