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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Ka7 draw
3 Kb8 draw
4 Kc5 draw
5 Kc6 draw
6 Kd6 draw
7 Ke5 draw
8 Ke6 draw
9 Rf3 draw
10 Rf4 draw
11 Rf6 draw
12 Rf7 draw
13 Rf8 draw
14 Rg5 draw
15 Rh5 draw
16 Kc4 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Re5 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rf2 loss in 2 half-moves