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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Ka4 draw
3 Ka5 draw
4 Kb5 draw
5 Kc5 draw
6 Ra8 draw
7 Rb5 draw
8 Rb6 draw
9 Rc8 draw
10 Kb3 loss in 12 half-moves
11 Ka3 loss in 6 half-moves
12 Rh8 loss in 4 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 1 half-moves