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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 K7b7 draw
3 K7b8 draw
4 K8b7 draw
5 K8b8 draw
6 Ra5 draw
7 Rb5 draw
8 Rc1 draw
9 Rc2 draw
10 Rc3 draw
11 Rc4 draw
12 Rc6 draw
13 Rc7 draw
14 Rd5 draw
15 Rh5 draw
16 Ka6 loss in 2 half-moves
17 Rc8 loss in 1 half-moves
18 Re5 loss in 1 half-moves
19 Rf5 loss in 1 half-moves
20 Rg5 loss in 1 half-moves