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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Ka5 draw
3 Ka6 draw
4 Kc4 draw
5 Kc5 draw
6 Kc6 draw
7 Kd7 draw
8 Ke7 draw
9 Kf7 draw
10 Rg7 draw
11 Ka4 loss in 2 half-moves
12 Kb4 loss in 2 half-moves
13 Kd8 loss in 2 half-moves
14 Kf8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rg2 loss in 2 half-moves
18 Rg3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rh8 loss in 2 half-moves