4 Color Blind by Guillaume Bienne

Finally, a "Colour Match" effect without electronics, budget-friendly, and very easy to perform!

A powerful mentalism routine where a drawing-coloured by one or more spectators- perfectly matches a prediction made by the performer. Think of a house, a cartoon character, letters, or any simple image filled in with 3 or 4 colours. Most Colour Match routines use pricey electronic gimmicks and Bluetooth connections to pull this off.

But not this one.

With 4 Colour Blind, mentalist Guillaume Bienn who's been obsessed with the art of magic for over 20 years-offers a fresh, no-tech take on the Colour Match effect that's natural, deceptive, and hits hard.

You don't rely on anything other than the connection you build with your spectators. Guillaume first performed this at the 2024 Magic Dream Rendez Vous convention and blew the audience away.People came for the lecture, but this effect stole the show. And now in 2025, it's finally available to performers everywhere!

Everything is included, plus a nearly hour-long explanatory video - filmed with Guillaume's partner Yoan Tanuji - that walks you step by step through the handling of this new kind of Colour Match, which can be performed close-up, parlour, or on stage. This routine fits any setting.

The Effect:

The mentalist explains they're colourblind and can't easily tell certain colours apart. Four spectators are invited to each choose one marker out of four. All the markers have identical caps, so the colours are hidden choices are made completely at random.

Each spectator then uses their mystery marker to colour in a portion of a drawing on a small card.And when the final reveal ... it all matches your prediction perfectly. The right colours, in the right places.

And here's the kicker!

4 Colour Blind is 100% customisable. You can colour the drawings of your choice, spell out words with letters or build a puzzle by combining four cards into a final image.

If you're looking for visual, direct, and easy-to-carry mentalism effect to add to your set, 4 Colour Blind might just become your new go-to. It resets instantly and gets killer reactions-every time.

Why you'll love it:

Included:

Get ready to blow minds- no apps, no gimmicks, just pure magic.