box b1 10 2 2
box b2 2 0.5 -3 1 1 8
box b3 7 0.5 -3 1 1 8
invert b3

bclearobjects
bcleartools
baddobjects b1
baddtools b2 b3
bfillds
bbuild r

buildbop r0 -o b1 -t b2 b3 -op common
buildbop r1 -o b1 -t b2 b3 -op fuse
buildbop r2 -o b1 -t b2 b3 -op cut
buildbop r3 -o b1 -t b2 b3 -op tuc

checkshape r0
checkprops r0 -s 110 -v 38
checknbshapes r0 -vertex 24 -edge 36 -wire 20 -face 16 -shell 2 -solid 2

checkshape r1
checkprops r1 -s 28 -v -6
checknbshapes r1 -vertex 16 -edge 24 -wire 12 -face 12 -shell 2 -solid 2

checkshape r2
checkprops r2 -s 10 -v 2
checknbshapes r2 -vertex 8 -edge 12 -wire 6 -face 6 -shell 1 -solid 1

checkshape r3
checkprops r3 -s 164 -v -46
checknbshapes r3 -vertex 40 -edge 60 -wire 32 -face 28 -shell 3 -solid 3