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 Kb6 win in 3 half-moves
3 Ka4 draw
4 Ka6 draw
5 Kb4 draw
6 Kb7 draw
7 Kb8 draw
8 Rb7 draw
9 Rc7 draw
10 Rg7 draw
11 Rh7 draw
12 Ra6 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves