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 Ka5 draw
3 Ka7 draw
4 Kb6 draw
5 Kb7 draw
6 Ke2 draw
7 Re2 draw
8 Rf3 draw
9 Rf4 draw
10 Rf5 draw
11 Rf6 draw
12 Rf7 draw
13 Rf8 draw
14 Rg2 draw
15 Rh2 draw
16 Kc1 loss in 2 half-moves
17 Kc2 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Kd1 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Ke1 loss in 2 half-moves
22 Ke3 loss in 2 half-moves
23 Rf1 loss in 2 half-moves