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 5 half-moves
3 Kc2 win in 5 half-moves
4 Kc3 win in 13 half-moves
5 Ra2 win in 21 half-moves
6 Ka4 win in 23 half-moves
7 Kd1 win in 29 half-moves
8 Kc1 win in 31 half-moves
9 Ka6 draw
10 Kb6 draw
11 Kd3 draw
12 Ke1 draw
13 Ra3 draw
14 Rb1 draw
15 Rc1 draw
16 Rd1 draw
17 Re1 draw
18 Rf1 draw
19 Ke2 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Ra4 loss in 2 half-moves
22 Rg1 loss in 2 half-moves
23 Rh1 loss in 2 half-moves