Slip into the Mastermind Lab

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.

Get it on Google Play
Modes: Classic • Puzzles • VS AI
Difficulty: Easy / Standard
Unique digits • Small sessions
Game hero

How to play — quick loop

  1. Guess a number composed of unique digits.
  2. Receive feedback: bulls (correct place) and cows (correct digit, wrong place).
  3. Use feedback to eliminate positions and digits until you find the secret.

Easy mode marks which specific digits are bulls/cows; Standard only gives totals — a sharper puzzle where inference across turns matters.

Tip: Start with digits spread across positions to maximize information.
Short sessions: 3–7 minutes
Bull
Cow
Miss

Game modes

Classic

Take turns guessing until you crack the secret. Track history, hone strategy, shorten your solution path.

Adaptive AI • Time-free

Puzzles

A curated set of clues. One right answer. Train deduction under constraint — ideal for daily warmups.

Challenge sets

VS Computer

Turn-based duel against an AI. Trade guesses, learn bluffing patterns, and race to the solution.

Competitive • Replayable

Ready to test your deduction?

Download now, sharpen your instincts, and compare your solve paths with friends.

Mastermind Lab

A set-piece for thinkers. Inspect a grid of guesses, watch bulls and cows settle into place, and experiment with hypothetical moves.

Move history
5
2
3
4
Try #1
1 Bull 1 Cow
4
6
3
1
Try #2
1 Bull 1 Cow
2
5
1
3
Try #3
2 Bulls 0 Cows
Hypothesis stage

Toggle digits to test placement scenarios — the Lab highlights contradictions and suggests fruitful probes without giving answers.

Solver hints are optional and tuned per difficulty.

Swipe or scroll — UI-safe previews with HUD chips and minimal letterboxing.

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Strategy tips

Get in touch

Questions, feedback, or bug reports? We read every message. Contact: [email protected] • https://www.softry.io/

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