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 Ka1 draw
3 Ka3 draw
4 Kd1 draw
5 Ra1 draw
6 Rb2 draw
7 Rb6 draw
8 Rb7 draw
9 Kab2 loss in 2 half-moves
10 Kb3 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kcb2 loss in 2 half-moves
13 Kd2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves