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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kc1 draw
3 Kd1 draw
4 Kd2 draw
5 Rb1 draw
6 Rb3 draw
7 Rb7 draw
8 Rb8 draw
9 Kb1 loss in 2 half-moves
10 Kb3 loss in 2 half-moves
11 Kc3 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Rb5 loss in 1 half-moves
15 Rb6 loss in 1 half-moves