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 Rb3 draw
3 Rb6 draw
4 Rb7 draw
5 Rb8 draw
6 Kb5 loss in 2 half-moves
7 Kc5 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 Rb5 loss in 2 half-moves
13 Kb3 loss in 1 half-moves
14 Kc3 loss in 1 half-moves
15 Kd3 loss in 1 half-moves