Type 111, then press 2 A first attempt at making logic gates and binary adders using domino-like structures. All circuits shown should be make-able using real dominoes, although it is possible to create impossible circuits (ie two trails crossing over) by exploiting the grouping optimisations. Although I have tried to optimise this project as much as possible, it still runs fairly slowly, so any suggestions for other optimisations would be much appreciated. :)