Imagine being able to predict/reveal a thought of two digit number and playing card without the spectator saying a word, everything exists purely inside their mind. Sounds impossible right? Wrong, with abacus you can do this and a whole lot more, from open predictions to acaan style effects. Abacus is a principle that opens doors that no other has done before and is being performed by professionals worldwide.

"Rus has adapted a very clever Max Maven idea and applied it to cards. The result is a very interesting and very easy version of the ACAAN effect."
- Marc Paul

"You have created a wonderful piece of mystery here and I'm getting strong reactions when performing it."
- Paul Rohmany

"Abacus is a combination of devious creativity and boldness. Rus has had numerous great additions and nuances to this plot over the years but he's really nailed it here. If you like the plot and want something your going to use I highly recommend Abacus."
- Steven Palmer