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

EGTB: win in 4 half-moves

# move score
1 Kba6 win in 3 half-moves
2 Kaa4 draw
3 Kaa6 draw
4 Kab4 draw
5 Kab6 draw
6 Kba4 draw
7 Kbb4 draw
8 Kbb6 draw
9 Kc4 draw
10 Kc5 draw
11 Ra8 draw
12 Rb8 draw
13 Rc1 draw
14 Rc2 draw
15 Rc3 draw
16 Rc7 draw
17 Rd8 draw
18 Rh8 draw
19 Kc6 loss in 2 half-moves
20 Rc4 loss in 1 half-moves
21 Rc5 loss in 1 half-moves
22 Rc6 loss in 1 half-moves
23 Re8 loss in 1 half-moves
24 Rf8 loss in 1 half-moves
25 Rg8 loss in 1 half-moves