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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 K7a6 draw
3 K7a7 draw
4 K7c7 draw
5 Rd8 draw
6 Re8 draw
7 Rf8 draw
8 Rg8 draw
9 Rh8 draw
10 K6a7 loss in 2 half-moves
11 K6c7 loss in 2 half-moves
12 Ka5 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 K6a6 loss in 1 half-moves
15 K6c6 loss in 1 half-moves
16 K7c6 loss in 1 half-moves
17 Ka8 loss in 1 half-moves
18 Kc8 loss in 1 half-moves
19 Ra8 loss in 1 half-moves
20 Rc8 loss in 1 half-moves