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 Kb1 win in 3 half-moves
3 Kb2 win in 3 half-moves
4 Kc2 win in 3 half-moves
5 Kd2 win in 3 half-moves
6 Rb1 win in 3 half-moves
7 Kd1 win in 7 half-moves
8 Kd4 win in 7 half-moves
9 Ra4 win in 7 half-moves
10 Kb3 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kc3 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kd3 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb8 loss in 2 half-moves