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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Kb5 draw
3 Kc5 draw
4 Kd3 draw
5 Kd4 draw
6 Kd5 draw
7 Ra4 draw
8 Rb1 draw
9 Rb5 draw
10 Rb6 draw
11 Kc3 loss in 28 half-moves
12 Kb3 loss in 16 half-moves
13 Rb3 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rb8 loss in 2 half-moves