Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ka3 draw
3 Ka5 draw
4 Kb3 draw
5 Kb4 draw
6 Kc6 draw
7 Kd6 draw
8 Ke6 draw
9 Ke7 draw
10 Ra7 draw
11 Rb7 draw
12 Rc1 draw
13 Rc6 draw
14 Kc8 loss in 2 half-moves
15 Kd8 loss in 2 half-moves
16 Ke8 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rc8 loss in 2 half-moves