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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kba4 win in 5 half-moves
3 Kba6 win in 5 half-moves
4 Kc6 win in 5 half-moves
5 Kaa4 win in 7 half-moves
6 Kaa6 win in 7 half-moves
7 Kab6 win in 7 half-moves
8 Kbb6 win in 7 half-moves
9 Ra8 win in 7 half-moves
10 Kc5 draw
11 Rb7 draw
12 Rf8 draw
13 Rg8 draw
14 Rh8 draw
15 Kab4 loss in 2 half-moves
16 Kbb4 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves