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

EGTB: win in 6 half-moves

# move score
1 Rb2 win in 5 half-moves
2 K7b8 draw
3 K8b8 draw
4 Ka6 draw
5 Ra2 draw
6 Rf1 draw
7 Rf3 draw
8 Rf7 draw
9 Rf8 draw
10 Rg2 draw
11 Rh2 draw
12 K7b7 loss in 2 half-moves
13 K8b7 loss in 2 half-moves
14 Kb6 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rd2 loss in 2 half-moves
17 Re2 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rf6 loss in 2 half-moves