Rummikub for blind and colourblind

Maybe you all know the famous and popular board game Rummikub invented by Mr. Ephraim Hertzano.
If not, it's an almost addictive game with number tiles where you have to make pairs of numbers. It is really fun and always exciting.
I play this game all the time with my neighbor and her husband (Ann and Tom), which are not their real names.
Tom unfortunately has Parkinson's, diabetes and is color blind (become). But he always tries to help Ann, but can not distinguish the different colors.

I then thought a little, tinkered and redesigned this game for people with visual impairment or color blindness.
As you can see in the attached pictures, the numbers are printed as letters in braille and the different tactile symbols (cross, circle, triangle and lines) represent the four colors.

The game is certainly not perfect, I did this only as a hobby, it is possible that the dots in braille are too far apart but I could not find out so quickly if there is a guideline.

Translated with www.DeepL.com/Translator (free version)