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

EGTB: win in 6 half-moves

# move score
1 Kb1 win in 5 half-moves
2 Kb3 win in 5 half-moves
3 Kb4 win in 5 half-moves
4 Kc3 win in 5 half-moves
5 Ra1 win in 5 half-moves
6 Ra3 win in 5 half-moves
7 Rb2 win in 5 half-moves
8 Kc1 win in 9 half-moves
9 Kb5 win in 17 half-moves
10 Ka4 win in 19 half-moves
11 Kd2 win in 19 half-moves
12 Ka6 win in 23 half-moves
13 Kb2 win in 23 half-moves
14 Kb6 draw
15 Kd1 draw
16 Kd3 draw
17 Ra4 draw