Deduction Games

What Is Deduction Training?

Deduction training is practising puzzles where the solution follows from rules alone. Each game here gives you fixed constraints and asks you to reason your way to the only valid outcome — no luck involved, and every wrong move is a lesson in which constraint you missed.

• Pure logic, measurable improvement. Because nothing is left to chance, a faster solve means better reasoning, not better luck.
• Transferable thinking. Elimination, constraint checking and planning are the same skills used in exams, debugging and strategy.
• Famous puzzles, deep technique. Sudoku, Lights Out and the 15-puzzle each have published technique families worth learning.
• Hints teach, not spoil. The hint systems reveal a logical step, not just the answer.

How to Train Deduction on iqiqgame.com

1. Pick a puzzle from the grid above — Sudoku, Slide Puzzle, Bottle Color Matching, 2048 or Lights Out.
2. Open the game page and study its rules and solving techniques before you start.
3. Solve by elimination and planning; if you feel the urge to guess, a constraint has been missed.
4. Read the technique sections on each game page to add new tools to your solving toolkit.

Deduction Training FAQ

New deduction puzzles are added to this section as they launch on iqiqgame.com.