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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kc1 win in 7 half-moves
3 Kc3 win in 7 half-moves
4 Ra3 win in 13 half-moves
5 Ka4 win in 15 half-moves
6 Kb5 win in 15 half-moves
7 Kb6 win in 15 half-moves
8 Kd3 win in 15 half-moves
9 Rb2 win in 15 half-moves
10 Ke2 win in 17 half-moves
11 Ka6 win in 19 half-moves
12 Kc2 win in 19 half-moves
13 Ra4 win in 19 half-moves
14 Rc2 win in 19 half-moves
15 Kd1 win in 21 half-moves
16 Ke1 win in 21 half-moves
17 Ke3 win in 21 half-moves
18 Ra1 win in 21 half-moves