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

EGTB: win in 2 half-moves

# move score
1 Ra6 win in 1 half-moves
2 Rb3 win in 1 half-moves
3 Kb5 loss in 2 half-moves
4 Kb7 loss in 2 half-moves
5 Kc5 loss in 2 half-moves
6 Kc8 loss in 2 half-moves
7 Kcc7 loss in 2 half-moves
8 Kcd7 loss in 2 half-moves
9 Kd5 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kdc7 loss in 2 half-moves
12 Kdd7 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Ke8 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rb8 loss in 2 half-moves