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 Kc5 draw
3 Kd4 draw
4 Kd5 draw
5 Ra4 draw
6 Rb3 draw
7 Rb6 draw
8 Rb8 draw
9 Kb5 loss in 20 half-moves
10 Kb3 loss in 2 half-moves
11 Kc3 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Rb1 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb5 loss in 2 half-moves