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

EGTB: win in 2 half-moves

# move score
1 Ra3 win in 1 half-moves
2 Kb3 loss in 2 half-moves
3 Kb4 loss in 2 half-moves
4 Kd3 loss in 2 half-moves
5 Kd4 loss in 2 half-moves
6 Rb3 loss in 2 half-moves
7 Rc1 loss in 2 half-moves
8 Rc2 loss in 2 half-moves
9 Rd3 loss in 2 half-moves
10 Re3 loss in 2 half-moves
11 Rf3 loss in 2 half-moves
12 Rg3 loss in 2 half-moves
13 Rh3 loss in 2 half-moves
14 Kb5 loss in 1 half-moves
15 Kc5 loss in 1 half-moves
16 Kd5 loss in 1 half-moves