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

EGTB: win in 1 half-moves

# move score
1 Rxb3 win in 1 half-moves
2 Bxb8 loss in 2 half-moves
3 Nxb8 loss in 2 half-moves
4 Rxb8 loss in 2 half-moves