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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Ra7 draw
3 Rc7 draw
4 Rd7 draw
5 Re7 draw
6 Rf7 draw
7 Rg1 draw
8 Rg2 draw
9 Rg3 draw
10 Rg4 draw
11 Ka4 loss in 2 half-moves
12 Ka6 loss in 2 half-moves
13 Kb4 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kd4 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Ke4 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Kf4 loss in 2 half-moves
22 Kf5 loss in 2 half-moves
23 Kf6 loss in 2 half-moves
24 Rg5 loss in 2 half-moves
25 Rg6 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh7 loss in 2 half-moves