MAHJ — Lesson 18

Strategic Mistakes

The errors that cost experienced players games

Goal: Recognize the five strategic habits that quietly cost wins

Estimated time: 7–10 minutes

Prerequisite: Lesson 17

Why it matters: Procedural mistakes break rules; strategic mistakes break games. Spotting yours is how you start winning consistently.

Step 1 of 10

🧠 These Aren't Rule Violations

Lesson 13 covered procedural mistakes — wrong tile counts, missed calls, Joker errors. Those are rule problems with clear solutions.

Strategic mistakes are harder to spot because they feel reasonable in the moment. You're not breaking a rule. You're just making a choice that quietly costs you games.

These are the five patterns that separate players who win sometimes from players who win consistently.