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

EGTB: win in 56 half-moves

# move score
1 K6b7 win in 55 half-moves
2 K6a7 win in 61 half-moves
3 Kb5 draw
4 K8a7 loss in 2 half-moves
5 K8b7 loss in 2 half-moves
6 Ka5 loss in 2 half-moves
7 Kb6 loss in 2 half-moves
8 Kb8 loss in 2 half-moves
9 Rb8 loss in 2 half-moves
10 Rc8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re1 loss in 2 half-moves
13 Re2 loss in 2 half-moves
14 Re3 loss in 2 half-moves
15 Re4 loss in 2 half-moves
16 Re5 loss in 2 half-moves
17 Re6 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves