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 Rc7 draw
3 Rd7 draw
4 Re7 draw
5 Rf1 draw
6 Rf2 draw
7 Rf5 draw
8 K7b7 loss in 2 half-moves
9 K7b8 loss in 2 half-moves
10 K8b7 loss in 2 half-moves
11 K8b8 loss in 2 half-moves
12 Ka6 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Rf3 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rf6 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 2 half-moves