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