Mastermind & Code Breaker
The classic 2-player code-breaking pegs game.

Mastermind

Activities, games, and class materials we use in class — recommended for play at home, across grades, and with grown-ups too.
The classic 2-player code-breaking pegs game.


Ancient two-player strategy games — simple boards, deep play.


100 logic puzzles for grades 3 and up.

Ask good questions. Eliminate the impossible.
A 1,200-year-old chess puzzle. Visit every square exactly once.
We add to this page as we play, test, and approve new games and practice books. Drop your email and we’ll let you know when something new lands here.
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