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 Ka2 draw
3 Ka5 draw
4 Kaa4 draw
5 Kb5 draw
6 Kba4 draw
7 Kc4 draw
8 Kc5 draw
9 Ra8 draw
10 Rb6 draw
11 Rb7 draw
12 Rf8 draw
13 Kab3 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Kbb3 loss in 2 half-moves
16 Kc3 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