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

EGTB: win in 6 half-moves

# move score
1 Rb8 win in 5 half-moves
2 K4a5 draw
3 K6a5 draw
4 Ka3 draw
5 Ka7 draw
6 Kb7 draw
7 Ra8 draw
8 Rc8 draw
9 Rd1 draw
10 Rd2 draw
11 Rd6 draw
12 Rd7 draw
13 Rh8 draw
14 K4b5 loss in 2 half-moves
15 K6b5 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Kb4 loss in 2 half-moves
18 Kb6 loss in 2 half-moves
19 Rd3 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Rd5 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves