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 Kd4 win in 3 half-moves
3 Ke2 win in 7 half-moves
4 Kf3 win in 7 half-moves
5 Kg3 win in 7 half-moves
6 Rc2 win in 9 half-moves
7 Rc1 win in 15 half-moves
8 Rc3 win in 15 half-moves
9 Kb5 draw
10 Kb6 draw
11 Kc6 draw
12 Kd5 draw
13 Kd6 draw
14 Ke1 draw
15 Ke3 draw
16 Kf1 draw
17 Kg1 draw
18 Kg2 draw
19 Ra4 draw
20 Rb4 draw
21 Rd4 draw
22 Re4 draw
23 Rf4 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rh4 loss in 2 half-moves