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

EGTB: win in 4 half-moves

# move score
1 Kc1 win in 3 half-moves
2 Kb4 draw
3 Kb5 draw
4 Kb6 draw
5 Kc2 draw
6 Kd2 draw
7 Ke2 draw
8 Rb7 draw
9 Ka4 loss in 2 half-moves
10 Ka6 loss in 2 half-moves
11 Ke1 loss in 2 half-moves
12 Ra6 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rc7 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Re7 loss in 2 half-moves
17 Rf7 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 2 half-moves