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

EGTB: win in 14 half-moves

# move score
1 Kb4 win in 13 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka4 draw
5 Ka6 draw
6 Kb2 draw
7 Kc1 draw
8 Ra6 draw
9 Ra8 draw
10 Rh7 draw
11 Kb5 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves