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

EGTB: win in 4 half-moves

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