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