Checksum

It requires practice but the results are amazing. It's totally worth it

It’s a video. Nice method, won’t be demonstrating it drunk though.

Mark Lemmon at it again with his creativity. This is one of the more mentally difficult effects straight out of the gates but with practice it destroys spectators.

Very good product!!!! Got very good reactions but the explanation can be better and therefore the 4 stars other than that very good

Smart method to find out date or pin.
Its contains tips and extra advices.

Matchable to very spesific version's of calculators...
If you use androidm you will have to download a diffrent app (that contains ads and make the process uncomfortable). Thats lead to the fact that its not 100% an impromptu trick.

Pete Turner said it the best in the "Final Thoughts" section. If you treat this as one of your card sleights and practice it, it will become second nature. If you look at it and say, "That's it!?!" and "The math is too hard to do!" you won't get anything out of this. Give this method the proper respect it deserves and practice it. The instructions are slightly confusing at first. I strongly recommend you have three different people's birthdays written down and go through this step by step with it. The Mark Lemon/Pete Turner Jam session and final thoughts are great. IF YOU ARE NOT GETTING THE RIGHT ANSWER...go to the "Final Thoughts" section. My only complaint about the videos is that I thought I was doing something wrong; there is a slight glitch in the method, but nothing you can't overcome. This method/routine can be as straightforward or as complex as you want to make it. This can be a quick 2-minute routine or make it an 8-minute routine. It can be a silly calculator trick, or it can be a fantastic revelation. As always with mentalism, the impact is based on your performance and delivery of the material, not the trick itself. A poor performer will get a "Wow! That's crazy!" response, while the average to excellent performer will be talked about for years after the performance. Study this, try it out, get comfortable with it, study it some more, and melt minds!

Great trick

When I first purchased this trick, I found the math a little daunting. I know other clever ways of getting a birthday or a predicted sum but this has both. This routine has a clever structure to it and flows very well that you can add your own mentalism style.

Have a lot of fun buy these great tricks.

Checksum

Great trick!

This is nice method. I can fool my spectators with this. And the highlight is, that I know they’re birth. But I think one moment is a little bit suspicious, but you can solve the problem with a good presentation. Very nice and you can do it anywhere.

There is learning course you have to make so its not eazy trick that works it self, also i think im important to mention pin code is not like pin code of phone or credit card, its pin-code of calculation. Once you get chill with around 3-4 days you can make this trick anywhere. And i suggesting to use your phone because its easyer.

Anyway its good for audience and i perform it already 12 times and went all good 👌👌

Very easy trick and good for meet a new friend.

Not sure what I was expecting with this one, but its a bit too messy and clunky for my style.
Its worth noting that you do need to do "a special something" to the spectators phone beforehand, which depending on their phone, might not be possible.
All in all its ok, but Cipher Pro is the way to go IMO.

This trick is so good and fooling the method fools me to the day and every time I perform it

I've been performing this since its release date, it's my fave way to reveal birth and zodiac sign, great effect

This effect is a really good safety net that can be virtually used in any performance, this can effect can be easily added into any routine. the only caveat is that you would need to practice this effect a few times, as there was a time that i once stuffed up the performance.

This effect is a really good safety net that can be virtually used in any performance, this can effect can be easily added into any routine. the only caveat is that you would need to practice this effect a few times, as there was a time that i once stuffed up the performance.

This is a cool trick and works best on iPhones. Being an Android user, downloading a third party app wasn't the best. Overall, I'm still happy with my purchase and enjoyed the contents from Mark. He explains things well and it was easy to follow.

The effect is just a solid piece of borrowed from the spectator mentalist to start with, but Mark’s ability to add nuance is second to none. You will be a better performer just from his input.

It's a bit misleading to say that this isn't toxic. It's true to an extent. You're not forcing a number, but it definitely requires a similar setup. You can't just take someone's phone and naturally do this. You have to be prepared to do quick setup on the fly. If you're bold and can do it without really thinking or paying attention, you'll be fine. If you can't, maybe stick to your own phone until you are. Having said that, this eliminates the biggest problem Cipher and similar have. It absolutely can be done on their device. Most importantly there is a *lot* of good content here for the price. The method is OK, but the jam session and other performance tips apply all across your mentalism toolbox.

Its really a good trick but i think cipher is the best option

This is an amazing trick which I now use as the final to my close up set. The cards take some time to set up but the effort is so worth it. You don't need anything special to create the gimmicks. It's super quick to learn and really easy to perform. From my experience you should not give the cards out as gifts at the end. Let spectators look at them but take them back. It is possible with the card in hand and time for someone to reverse engineer what has happened. It's so clever and a great buy.

Overall this is pretty solid, but I do want to address a couple things. It states the participant can “Freely think up a number” or can “think up a unique number” which yes, it’s unique to each person but it’s definitely not “Freely” thought up like the description states. I also wish the NEW method was at the beginning, rather than the middle, it was a little confusing learning it while in the middle of learning the original method. That being said, I can definitely see myself using this from time to time. I enjoyed both the guys in the video. I’d say the price is about $2 too high, but still worth the buy.

Good service

Stick with it as there's a feeling of 'mental effort' involved in preparing this effect for your spectator. With a bit of time, you have a clever reveal at your disposal. The added section with Peter Turner is a real bonus.

Cool effect but i dont have an iPhone which is a bummer. Thanks for always putting out great magic Ellusionist.

A lot of people know the Toxic force in some way or another. This is not Toxic. It's much smarter than that and the possibilities are endless. Mark's teaching is very good and the routine is very smart. The jam with Pete is very important and gives a good idea of how to use this in the best way.
I really like this :)

I recently bought Checksum and its a great effect. But for me it's a little hard to remember the numbers while also talking and doing my presentation, but after practicing a little I'm sure it'll be fine.

Hye everyone, I'm Hafiz from Malaysia. One day I get invited to give a speech. And I really need something new to interact and get and early interest from audience. While searching online, I fund Ellusionist. After a few minutes watching the video, I really make an interest to Checksum. Because that one I can try within a really short time. I buy it. Watch the video. with the tips given i try to my nephew and successful. Thanks to checksum, within a few minutes preparation, i can give a confidence speech and some sort of interesting performance. After that, without further a due, I buying a few more products. Congrats for the good products from Ellusionist. So here my thanks and love from me the Asian country guy to u all. Keep up the good work.
Bye.