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 Kb3 draw
3 Kb5 draw
4 Kc3 draw
5 Kc5 draw
6 Kd3 draw
7 Kd4 draw
8 Kd5 draw
9 Rb3 draw
10 Rb5 draw
11 Rb6 draw
12 Rb8 draw
13 Ra4 loss in 8 half-moves
14 Rb1 loss in 2 half-moves
15 Rb2 loss in 2 half-moves