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 Kd4 win in 3 half-moves
4 Kd5 win in 3 half-moves
5 Rc1 win in 5 half-moves
6 Kd3 win in 7 half-moves
7 Kc3 win in 9 half-moves
8 Ra2 win in 9 half-moves
9 Kb6 draw
10 Kc1 draw
11 Kc4 draw
12 Kc6 draw
13 Kd1 draw
14 Kd6 draw
15 Ke1 draw
16 Rb2 draw
17 Ke2 loss in 2 half-moves
18 Ke3 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rc4 loss in 2 half-moves