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 Kb8 win in 3 half-moves
4 Kc5 win in 3 half-moves
5 Kd5 win in 3 half-moves
6 Kd6 win in 3 half-moves
7 Kd8 win in 3 half-moves
8 Rb8 win in 7 half-moves
9 K6b7 draw
10 K6c7 draw
11 K6d7 draw
12 K8b7 draw
13 K8c7 draw
14 K8d7 draw
15 Ra1 draw
16 Rb2 draw
17 Rb3 draw
18 Rb6 draw
19 Rb7 draw
20 Rc1 draw
21 Rd1 draw
22 Re1 draw
23 Rf1 draw
24 Rb4 loss in 2 half-moves
25 Rb5 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves