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 K2a3 draw
3 K2b3 draw
4 K2c3 draw
5 K4a3 draw
6 K4b3 draw
7 K4c3 draw
8 Ka1 draw
9 Ka2 draw
10 Ka4 draw
11 Ka5 draw
12 Kb1 draw
13 Ra6 draw
14 Rb7 draw
15 Rb8 draw
16 Rc6 draw
17 Rd6 draw
18 Kc1 loss in 2 half-moves
19 Kc2 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kc5 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Re6 loss in 2 half-moves
24 Rf6 loss in 2 half-moves
25 Rg6 loss in 2 half-moves
26 Rh6 loss in 2 half-moves