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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rd1 draw
3 Re2 draw
4 Re3 draw
5 Re7 draw
6 Re8 draw
7 Rf1 draw
8 Rg1 draw
9 Rh1 draw
10 Ra1 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Re4 loss in 2 half-moves
13 Re5 loss in 2 half-moves
14 Re6 loss in 2 half-moves