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 Kb5 win in 3 half-moves
3 Kc7 win in 3 half-moves
4 Rb1 win in 3 half-moves
5 Rc1 win in 5 half-moves
6 Ka3 draw
7 Ka5 draw
8 Kb3 draw
9 Kc5 draw
10 Kc6 draw
11 Kd5 draw
12 Kd7 draw
13 Ke5 draw
14 Ke6 draw
15 Ke7 draw
16 Ra2 draw
17 Rd1 draw
18 Re1 draw
19 Rf1 draw
20 Ra3 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh1 loss in 2 half-moves