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 Kd1 draw
7 Kd3 draw
8 Ke1 draw
9 Ke2 draw
10 Rd3 draw
11 Re2 draw
12 Re4 draw
13 Re5 draw
14 Re6 draw
15 Re7 draw
16 Re8 draw
17 Rf3 draw
18 Rg3 draw
19 Rh3 draw
20 Kc1 loss in 2 half-moves
21 Kc2 loss in 2 half-moves
22 Kc3 loss in 2 half-moves
23 Ra3 loss in 2 half-moves
24 Rb3 loss in 2 half-moves
25 Rc3 loss in 2 half-moves
26 Re1 loss in 2 half-moves