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