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 K4b4 draw
3 K4b5 draw
4 K5b4 draw
5 K5b5 draw
6 Ka3 draw
7 Ka6 draw
8 Kb6 draw
9 Ra8 draw
10 Rc8 draw
11 Rd8 draw
12 Re8 draw
13 Rf1 draw
14 Rf2 draw
15 Rf6 draw
16 Rf7 draw
17 Kb3 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves