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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Ka2 draw
3 Kb1 draw
4 Kc3 draw
5 Kc4 draw
6 Kc5 draw
7 Kd3 draw
8 Kd5 draw
9 Ke5 draw
10 Ra3 draw
11 Rb3 draw
12 Rc3 draw
13 Rd3 draw
14 Re4 draw
15 Re5 draw
16 Re6 draw
17 Re7 draw
18 Re8 draw
19 Rf3 draw
20 Ke4 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rh3 loss in 2 half-moves