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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Kb5 win in 3 half-moves
3 Kcc3 win in 3 half-moves
4 Kcc5 win in 3 half-moves
5 Kdc3 win in 3 half-moves
6 Kdc5 win in 3 half-moves
7 Kdd3 win in 3 half-moves
8 Kdd5 win in 3 half-moves
9 Ke3 win in 3 half-moves
10 Ke4 win in 3 half-moves
11 Rb6 win in 3 half-moves
12 Rb7 win in 3 half-moves
13 Rb8 win in 3 half-moves
14 Ke5 win in 5 half-moves
15 Kb3 win in 7 half-moves
16 Kcd3 win in 7 half-moves
17 Kcd5 win in 7 half-moves
18 Ra4 win in 7 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rb5 loss in 2 half-moves