Classic
Take turns guessing until you crack the secret. Track history, hone strategy, shorten your solution path.
Slip into the Mastermind Lab: Bulls and Cows distills deduction into bite-sized duels. Probe a secret number, read bulls (right digit, right place) and cows (right digit, wrong place), and refine your strategy. Fast puzzles, head-to-head matches, and clean HUD chips make every solve satisfying.
Easy mode marks which specific digits are bulls/cows; Standard only gives totals — a sharper puzzle where inference across turns matters.
Take turns guessing until you crack the secret. Track history, hone strategy, shorten your solution path.
A curated set of clues. One right answer. Train deduction under constraint — ideal for daily warmups.
Turn-based duel against an AI. Trade guesses, learn bluffing patterns, and race to the solution.
Download now, sharpen your instincts, and compare your solve paths with friends.
A set-piece for thinkers. Inspect a grid of guesses, watch bulls and cows settle into place, and experiment with hypothetical moves.
Toggle digits to test placement scenarios — the Lab highlights contradictions and suggests fruitful probes without giving answers.
Swipe or scroll — UI-safe previews with HUD chips and minimal letterboxing.







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