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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Kd3 draw
3 Kd4 draw
4 Kd5 draw
5 Kf3 draw
6 Kf4 draw
7 Ra3 draw
8 Rc3 draw
9 Rd3 draw
10 Re1 draw
11 Re2 draw
12 Ke5 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Rf3 loss in 2 half-moves
15 Rg3 loss in 2 half-moves
16 Rh3 loss in 2 half-moves