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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kaa5 draw
3 Kaa7 draw
4 Kba5 draw
5 Kba7 draw
6 Kbb5 draw
7 Kc5 draw
8 Kc6 draw
9 Kc7 draw
10 Re7 draw
11 Rf7 draw
12 Rg7 draw
13 Kab5 loss in 1 half-moves
14 Ra7 loss in 1 half-moves
15 Rc7 loss in 1 half-moves
16 Rd7 loss in 1 half-moves
17 Rh7 loss in 1 half-moves