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

EGTB: win in 2 half-moves

# move score
1 Kb4 win in 1 half-moves
2 Rf8 win in 1 half-moves
3 Kb3 draw
4 K4a5 loss in 2 half-moves
5 K6a5 loss in 2 half-moves
6 Ka3 loss in 2 half-moves
7 Ka7 loss in 2 half-moves
8 Kb6 loss in 2 half-moves
9 Kb7 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves
17 K4b5 loss in 1 half-moves
18 K6b5 loss in 1 half-moves