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 Ka4 draw
3 Ka5 draw
4 Ka6 draw
5 Kb6 draw
6 Kc4 draw
7 Kd1 draw
8 Ke1 draw
9 Kf1 draw
10 Kf2 draw
11 Ra2 draw
12 Rb2 draw
13 Rc2 draw
14 Rd1 draw
15 Rd3 draw
16 Rd8 draw
17 Kc5 loss in 2 half-moves
18 Kc6 loss in 2 half-moves
19 Kd3 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Rd4 loss in 2 half-moves
23 Rd5 loss in 2 half-moves
24 Rd6 loss in 2 half-moves
25 Rd7 loss in 2 half-moves