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

EGTB: win in 2 half-moves

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