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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 K6b6 draw
3 Rd8 draw
4 Re8 draw
5 Rf8 draw
6 Rg8 draw
7 Rh8 draw
8 K7b6 loss in 2 half-moves
9 Kb8 loss in 2 half-moves
10 K6b7 loss in 1 half-moves
11 K7b7 loss in 1 half-moves
12 Ka5 loss in 1 half-moves
13 Kb5 loss in 1 half-moves
14 Rc8 loss in 1 half-moves