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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ra8 win in 5 half-moves
3 Rc8 draw
4 Rd8 draw
5 Re8 draw
6 Rf1 draw
7 Rf2 draw
8 Rf7 draw
9 K4b4 loss in 2 half-moves
10 K4b5 loss in 2 half-moves
11 K5b4 loss in 2 half-moves
12 K5b5 loss in 2 half-moves
13 Ka3 loss in 2 half-moves
14 Ka6 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Rf3 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
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves