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

EGTB: win in 10 half-moves

# move score
1 Rb1 win in 9 half-moves
2 Bb4 draw
3 Bc1 draw
4 Bc5 draw
5 Bd6 draw
6 Be7 draw
7 Bf8 draw
8 Ra2 draw
9 Rh1 draw
10 Bb2 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Re1 loss in 2 half-moves
14 Rf1 loss in 2 half-moves
15 Rg1 loss in 2 half-moves