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 Rd3 win in 3 half-moves
3 Ka3 draw
4 Ka6 draw
5 Ra8 draw
6 Rc8 draw
7 Rd1 draw
8 Rd2 draw
9 Rd7 draw
10 Rh8 draw
11 K4b4 loss in 2 half-moves
12 K4b5 loss in 2 half-moves
13 K5b4 loss in 2 half-moves
14 K5b5 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves