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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kb3 win in 3 half-moves
3 Kb4 win in 3 half-moves
4 Rb2 win in 3 half-moves
5 Rc2 win in 3 half-moves
6 Kc3 win in 7 half-moves
7 Kc4 win in 7 half-moves
8 Ke3 win in 7 half-moves
9 Kc2 win in 11 half-moves
10 Ka4 win in 13 half-moves
11 Kd2 win in 15 half-moves
12 Ke2 win in 23 half-moves
13 Kd4 draw
14 Ke4 draw
15 Ra1 draw
16 Rd2 draw
17 Re2 draw
18 Rf2 draw
19 Rg2 loss in 2 half-moves
20 Rh2 loss in 2 half-moves