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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ka3 draw
3 Kaa5 draw
4 Kab4 draw
5 Kb3 draw
6 Kb6 draw
7 Kbb4 draw
8 Ra8 draw
9 Rb7 draw
10 Rd8 draw
11 Ka6 loss in 2 half-moves
12 Kba5 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kc5 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves