Card Deduction Game

A logic puzzle where you guess all 52 cards in a deck using deduction and memory.

How It Works

Each turn, you make three guesses about the current card:

Step 1: Color Black or Red?

Step 2: Suit Spades, Hearts, Diamonds, or Clubs?

Step 3: Number A, 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, or K?

You earn points for each correct guess:

• Correct color: 1 point
• Correct suit: 2 points
• Correct number: 3 points

Wrong guesses don't cost you points. Instead, they give you information. Each card you guess is placed in one of two lanes: face-up if you guessed correctly, or face-down if you were wrong. This helps you track what you've tried and narrow down future guesses.

The Challenge

The game starts simple. Early on, you have many options and little information. As you play, the puzzle becomes more interesting. The face-down cards show you what numbers you've already tried for each suit. The face-up cards show your successful guesses.

When you've placed all 13 cards for a suit (whether correct or incorrect), the remaining face-down cards automatically flip to face-up, completing that suit.

Your goal: deduce all 52 cards. The perfect score is 156 points, but any completion is an achievement.

What Makes It Engaging

This isn't a memory game in the traditional sense. You can't memorize the deck because you don't know the order. Instead, you use logic and process of elimination.

As the game progresses, your choices become more informed. You'll find yourself thinking: "I've tried A, 2, and 5 for Spades and they were all wrong, so this card can't be any of those."

The satisfaction comes from those moments when you narrow it down to just a few possibilities, make an educated guess, and get it right.

Features

The game works on desktop and mobile. On desktop, you'll see a split-screen layout with controls on the left and cards on the right. On mobile, cards fill the screen with controls in a bottom sheet.

Cards are organized by suit, with clear visual separation between correct guesses (face-up) and incorrect ones (face-down). When a suit completes, you'll see a checkmark badge.

There are no timers, no penalties for wrong guesses, and no pressure. Take your time and think through each decision.

Who It's For

If you enjoy logic puzzles, this will appeal to you. It's something you can play in a 10-minute break or spend longer working through systematically.

The game doesn't require quick reflexes or memorization skills. It rewards careful thinking and pattern recognition.

Technical Notes

This is a single-page HTML game. No installation needed. It works offline once loaded. No account required, no data collected, no ads.

The game resets when you refresh or click "Play Again." Each playthrough gives you a freshly shuffled deck.

Play in your browser. Figure out the deck. See how you do.