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 Ka4 draw
3 Ka6 draw
4 Kb5 draw
5 Kg7 draw
6 Kg8 draw
7 Kh7 draw
8 Ra8 draw
9 Rb3 draw
10 Rb4 draw
11 Rb5 draw
12 Rb6 draw
13 Rb7 draw
14 Rc8 draw
15 Rd8 draw
16 Kb4 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves