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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ka2 draw
3 Kb2 draw
4 Rb2 draw
5 Rb3 draw
6 Rb7 draw
7 Rf1 draw
8 Rg1 draw
9 Rh1 draw
10 Ra1 loss in 4 half-moves
11 Ka4 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Kb4 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Re1 loss in 2 half-moves