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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ra6 win in 3 half-moves
3 Rb5 win in 3 half-moves
4 Kd5 draw
5 Ra1 draw
6 Kb4 loss in 2 half-moves
7 Kb6 loss in 2 half-moves
8 Kc4 loss in 2 half-moves
9 Kc6 loss in 2 half-moves
10 Kd4 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Ra8 loss in 2 half-moves