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 Kc3 win in 5 half-moves
4 Ra1 win in 5 half-moves
5 Ra3 win in 5 half-moves
6 Rb2 win in 11 half-moves
7 Ka5 win in 13 half-moves
8 Ka6 win in 15 half-moves
9 Kb5 win in 17 half-moves
10 Ka7 draw
11 Kb1 draw
12 Kb7 draw
13 Kc1 draw
14 Kc5 draw
15 Kc6 draw
16 Kc7 draw
17 Kd1 draw
18 Kd2 draw
19 Ra4 draw
20 Ra6 draw
21 Ra8 draw
22 Kd3 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra7 loss in 2 half-moves