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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rd3 draw
3 Re1 draw
4 Re2 draw
5 Re4 draw
6 Re8 draw
7 Rf3 draw
8 Rg3 draw
9 Rh3 draw
10 Ra3 loss in 2 half-moves
11 Rc3 loss in 2 half-moves
12 Re5 loss in 2 half-moves
13 Re6 loss in 2 half-moves
14 Re7 loss in 2 half-moves