VennVista

VennVista is a logic deduction card game that challenges your reasoning skills. Each round presents six cards, each with three attributes: color (red, blue, or green), shape (triangle, square, or circle), and points (1, 2, or 3). A hidden rule selects exactly one matching card. Your task is to find it.

Tap a card to test it. If it matches the hidden rule, you win the round. If not, you receive clear feedback explaining which attribute didn't match, helping you narrow down the possibilities. You have three attempts per round, but consecutive wins reduce attempts to two for an extra challenge.

Features:
- 80 progressive levels across four chapters: single attributes, AND rules, OR rules, and NOT rules
- Infinite mode unlocked after completing all levels, with fully random rule generation
- Daily challenge with a shared rule for all players
- Streak tracking and top score records
- Clean card-based interface with clear visual feedback
- No internet connection required
- No ads, no in-app purchases, no data collection

The game progressively introduces new rule types. Early levels use simple single-attribute rules. Later levels introduce compound rules with AND, OR, and NOT logic, requiring increasingly sophisticated deduction. Each new rule type comes with an explanation to ease the learning curve.

With each wrong guess, you learn something new. The feedback tells you exactly which dimension was wrong, turning every failure into a learning opportunity. Build up your reasoning skills and aim for the highest streak.