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 draw
4 Kaa4 draw
5 Kab5 draw
6 Kb6 draw
7 Kbb5 draw
8 Ra8 draw
9 Rb7 draw
10 Re8 draw
11 Ka3 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 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves