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I've decided to upgrade to Brilliant Squared.The introductory pricing is quite cheap and considering a vast collection of problems a 1 year membership is quite worthwhile in my opinion.What do you people think??How many of you have already updated??And for the staff will skill trees be added in the near future??

3 years, 2 months ago

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Eddie, as you may have noticed, Arron just announced that we added to the Permutations and Combinatorics skill tree.

You can add the tag #BrilliantSquared, to be informed as new checkpoints are added. Staff · 3 years, 2 months ago

in the upgrade, we asked CVC,What is it? · 2 years, 10 months ago

CVC stands for "card verification code"

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It is located on the back of MasterCard, Visa and Discover credit or debit cards and is typically a separate group of 3 digits to the right of the signature strip. Staff · 2 years, 10 months ago

Ok..SIr! · 3 years, 2 months ago