2 Card System

[TheHumanTim]

@fred2

I am sure there is a mathematical formula out there that explains how you arrive at the figure of 2704 precisely, without having to write down all 2-card combinations?

If you allow for duplicates, there are 52 options for card one (every card in the deck) and 52 options for card two (every card in the deck).
52 x 52 = 2704.

If you don’t allow for duplicates there are 2652 total combinations. Found by taking the 52 options for card one (all cards in the deck), and 51 options for card two (all cards except the card that was used for card one).
52 x 51 = 2652

@fred2

No more silly ideas to be posted by me though, least they are shot down by the ‘mnemonic police brigade’.

haha, there’s nothing wrong with ideas! If this system you’ve proposed makes sense to you and you can quickly convert that data and memorize with it at a speed you’re happy with, then embrace it and use it!

Here’s a couple links explaining how you arrive at the 1352 total, by cutting the total elements needed for the pair combos via the 2-block system:

Question about Shadow System

Hey @AndersonAraujoBrasil! I think you misunderstand a little bit how the system is set up. You’re correct that there are 2704 possible pairs of cards (if you allow for duplicate cards.) Shadow cuts the number of images you need to learn to half of that by associating the same image to both a black-first pair and its equivalent red-first pair. Example: [Screenshot_20240114-084721~2] [Screenshot_20240114-084704~2] When you are memorizing the cards, if you see either of these card pairs, the i…

Double-2-Block System for Memorizing Cards (2x676 images)

Nope! The only real similarity is that they both use a single element to encode a pair of cards. You’ve got the totals correct! A “2-block” system is just a way to have a single encoded element represent two different card pairs, typically one with a black suit in the first position and the other with a red card first. This cuts the number of elements to learn down from 2704 in a true two-card per element system to “only” 1352 images. For example [2 A ] is represented by th…