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Brain games

Seven puzzles to think through at your own pace, all free and in your browser. No sign-up, no betting, no prizes — just the challenge.

How to choose

If you like step-by-step planning, Towers of Hanoi asks you to move a stack of disks to the right peg in the fewest possible moves. Peg Solitaire and Lights Out are quiet deduction on a board, one jumping pegs until only one is left, the other switching off lights that flip in a chain reaction. Mastermind swaps the board for colors, cracking a code by elimination; Maze tests spatial orientation instead of pure logic; Digit Memory measures how many numbers your short-term memory can hold at once; and Stroop pits reading against color perception in 45 seconds of pure conflict.

What skill games are

They are games where the outcome depends on your decisions, not on luck. There is no betting, no cash prize and no drawing. That's why Cortex Jogos Web is not gambling or a betting site: it's entertainment and reasoning practice. Learn more in About us and the Terms of Use.