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 Re8 draw
3 Rg8 draw
4 Rh8 draw
5 Ka3 loss in 2 half-moves
6 Ka4 loss in 2 half-moves
7 Ka7 loss in 2 half-moves
8 Kaa5 loss in 2 half-moves
9 Kab5 loss in 2 half-moves
10 Kb3 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kba5 loss in 2 half-moves
14 Kbb5 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kc5 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves