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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Ka3 draw
3 Ka4 draw
4 Kb4 draw
5 Ra8 draw
6 Rb4 draw
7 Rb6 draw
8 Rb7 draw
9 Rc8 draw
10 Kb2 loss in 8 half-moves
11 Ka2 loss in 6 half-moves
12 Kc2 loss in 2 half-moves
13 Kc3 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 1 half-moves