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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Ka1 draw
3 Ka3 draw
4 Kc6 draw
5 Kc7 draw
6 Kd5 draw
7 Kd7 draw
8 Ke5 draw
9 Ke6 draw
10 Ke7 draw
11 Ra4 draw
12 Rb3 draw
13 Rb5 draw
14 Rb7 draw
15 Rb8 draw
16 Rh4 draw
17 Rb6 loss in 4 half-moves
18 Kb1 loss in 2 half-moves
19 Kb2 loss in 2 half-moves
20 Kb3 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rc4 loss in 2 half-moves
24 Rd4 loss in 2 half-moves
25 Re4 loss in 2 half-moves
26 Rf4 loss in 2 half-moves
27 Rg4 loss in 2 half-moves