ABBB on 2x4: max over 2-letter grids = 12, over 3-letter grids = 12, cells = 8, conc = 3/2
ABBB on 1x8: max over 2-letter grids = 12, over 3-letter grids = 12, cells = 8, conc = 3/2
ABBB on 2x5: max over 2-letter grids = 12, over 3-letter grids = 12, cells = 10, conc = 6/5
ABBB on 1x9: max over 2-letter grids = 12, over 3-letter grids = 12, cells = 9, conc = 4/3
ABBB on 1x5: max over 2-letter grids = 6, over 3-letter grids = 6, cells = 5, conc = 6/5
ABBB on 3x3: max over 2-letter grids = 0, over 3-letter grids = 0, cells = 9, conc = 0
ABB on 1x2x3: max over 2-letter grids = 36, over 3-letter grids = 36, cells = 6, conc = 6
ABB on 2x2x2: max over 2-letter grids = 0, over 3-letter grids = 0, cells = 8, conc = 0
ABB on 1x3x3: max over 2-letter grids = 54, over 3-letter grids = 54, cells = 9, conc = 6
ABB on 1x1x6: max over 2-letter grids = 36, over 3-letter grids = 36, cells = 6, conc = 6
ABB on 2x4: max over 2-letter grids = 12, over 3-letter grids = 12, cells = 8, conc = 3/2
ABB on 3x3: max over 2-letter grids = 18, over 3-letter grids = 18, cells = 9, conc = 2
three letters never beat two letters: True
nice -n 10 $PY vA_three_letters.py  1.49s user 0.01s system 99% cpu 1.506 total
