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 Kb1 draw
3 Kb3 draw
4 Kc1 draw
5 Kc3 draw
6 Kd1 draw
7 Kd2 draw
8 Kd3 draw
9 Ra2 draw
10 Rb1 draw
11 Rb3 draw
12 Rb4 draw
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves