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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Rb6 win in 1 half-moves
3 Kb3 loss in 2 half-moves
4 Kb5 loss in 2 half-moves
5 Kc1 loss in 2 half-moves
6 Kc2 loss in 2 half-moves
7 Kc5 loss in 2 half-moves
8 Kcc3 loss in 2 half-moves
9 Kcd3 loss in 2 half-moves
10 Kd1 loss in 2 half-moves
11 Kd4 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Kdc3 loss in 2 half-moves
14 Kdd3 loss in 2 half-moves
15 Ke1 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rb8 loss in 2 half-moves