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 Kc4 draw
5 Kc5 draw
6 Kc6 draw
7 Kd4 draw
8 Kd6 draw
9 Ra7 draw
10 Rb7 draw
11 Rc7 draw
12 Rd7 draw
13 Re1 draw
14 Re2 draw
15 Re3 draw
16 Re8 draw
17 Rf7 draw
18 Ke4 loss in 2 half-moves
19 Ke5 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Re5 loss in 2 half-moves
23 Re6 loss in 2 half-moves
24 Rg7 loss in 2 half-moves
25 Rh7 loss in 2 half-moves