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

EGTB: win in 2 half-moves

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