full: search nodes 52042
  used vertices 3: surfaces with boundary 20 (max dual diameter 0), closed 0 (max -1); with diam >= nv-2: 0 (max diam among orientable ones: with boundary -1, closed -1)
  used vertices 4: surfaces with boundary 150 (max dual diameter 1), closed 15 (max 1); with diam >= nv-2: 0 (max diam among orientable ones: with boundary -1, closed -1)
  used vertices 5: surfaces with boundary 1242 (max dual diameter 2), closed 60 (max 2); with diam >= nv-2: 0 (max diam among orientable ones: with boundary -1, closed -1)
  used vertices 6: surfaces with boundary 8562 (max dual diameter 3), closed 207 (max 3); with diam >= nv-2: 0 (max diam among orientable ones: with boundary -1, closed -1)
