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

EGTB: win in 4 half-moves

# move score
1 Kab4 win in 3 half-moves
2 Kab6 win in 3 half-moves
3 Kaa4 draw
4 Kaa6 draw
5 Kba4 draw
6 Kba6 draw
7 Kbb4 draw
8 Kbb6 draw
9 Rb8 draw
10 Rg8 draw
11 Rh8 draw
12 Kc4 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Ra7 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves