There are three blocks in the Master BIM:
The block R (the remedial part for the one-year-master)
The block 1 (the first year of the two-years-master)
The block 2 (the central part of the cursus or 2nd Year)
A student can either go through BlockR+Block2 (in minimum one year) or through Block1+Block2 (in minimum two years), depending on his background (see accessibility conditions).
The blockR (the remedial part for the one-year-master) is composed of maximum 15 credits, listed below:
The central part of the one year master is the block 2, visible here.