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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Kb2 win in 5 half-moves
3 Kc2 win in 5 half-moves
4 Ra2 win in 5 half-moves
5 Ra4 win in 5 half-moves
6 Ka4 win in 9 half-moves
7 Ka6 win in 9 half-moves
8 Kb1 win in 9 half-moves
9 Kd1 win in 13 half-moves
10 Kd2 win in 13 half-moves
11 Ra3 win in 13 half-moves
12 Kb4 win in 21 half-moves
13 Kb5 win in 23 half-moves
14 Kb6 win in 27 half-moves