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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Ka6 win in 5 half-moves
4 Ra8 win in 5 half-moves
5 Rb7 win in 5 half-moves
6 Kab5 win in 7 half-moves
7 Kb6 win in 9 half-moves
8 Kbb5 win in 9 half-moves
9 Rf8 draw
10 Ka3 loss in 2 half-moves
11 Kaa4 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Kba4 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kc5 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 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves