Abstract: The disclosure relates to a method for adjusting a scoring blade for a board partitioning system for large-format board including the following steps: a. sawing a groove in the board using a saw blade, detecting the sawed groove using a detection device, storing the data; b. displacing the board a feed distance using a feeding device; c. scoring a groove parallel to the sawed groove but at a distance there from, detecting the scored groove using the same detection device as in step a); d. comparing the position of the scored groove and the position of the sawed groove relative to a common reference fixed to the detection device; e. if required: correcting the position of the scoring blade and/or the saw blade orthogonally to the board plane such that the center axes of the scored groove and the sawed groove are approximately equal relative to the common reference fixed to the detection device.