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 Kc1 win in 3 half-moves
3 Kc3 win in 5 half-moves
4 Ra2 win in 5 half-moves
5 Ka4 draw
6 Ka6 draw
7 Kb5 draw
8 Kb6 draw
9 Kd1 draw
10 Kd3 draw
11 Ke1 draw
12 Ke2 draw
13 Ke3 draw
14 Rb2 draw
15 Rc1 draw
16 Rc6 draw
17 Rc7 draw
18 Rc8 draw
19 Rc3 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rc5 loss in 2 half-moves