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 Ka2 win in 5 half-moves
3 Ka5 draw
4 Ra5 draw
5 Ra6 draw
6 Ra7 draw
7 Rc8 draw
8 Rg8 draw
9 Rh8 draw
10 K3b3 loss in 2 half-moves
11 K3b4 loss in 2 half-moves
12 K4b3 loss in 2 half-moves
13 K4b4 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves