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 Kc3 draw
3 Kc4 draw
4 Kc5 draw
5 Kd5 draw
6 Ra3 draw
7 Rc3 draw
8 Rd1 draw
9 Rd2 draw
10 Re3 draw
11 Rf3 draw
12 Ke3 loss in 2 half-moves
13 Ke4 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Rg3 loss in 2 half-moves
16 Rh3 loss in 2 half-moves