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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Kb7 win in 3 half-moves
4 Rc2 win in 3 half-moves
5 Rb2 win in 7 half-moves
6 Kc4 win in 13 half-moves
7 Kc5 win in 13 half-moves
8 Ra4 win in 13 half-moves
9 Ra5 win in 13 half-moves
10 Ra1 win in 17 half-moves
11 Ra3 win in 17 half-moves
12 Ka5 draw
13 Ka7 draw
14 Kc6 draw
15 Kd4 draw
16 Kd6 draw
17 Ke4 draw
18 Ke5 draw
19 Ke6 draw
20 Rd2 draw
21 Re2 draw
22 Rf2 draw
23 Rg2 loss in 2 half-moves
24 Rh2 loss in 2 half-moves