Curiosity, with the workings shown
Good question.
Let’s test it.
Everyone has a favourite piece of mahjong advice. We turn specific habits into testable comparisons, then show the result—including when the answer is “we don’t know yet”.
September 2026 · exploratory batch
No clear winner.
Still worth understanding.
Every reported 95% interval in this batch crosses zero. These runs have not established a reliable advantage for either policy. Explore the comparisons below to see what we tested and which questions remain open.
How to read a simulation result →- 10
- focused comparisons
- 4,864
- simulated hands
- Data + method
- available with the reports
Choose a question
What happens if…?
Does calling more often help? →
Compare eager claims with the same advanced player’s usual calling policy.
Exploratory simulation · scope and limits insideWhose discards should you watch? →
Two ways to rank defensive discards, with the folding trigger held constant.
Exploratory simulation · scope and limits insideWhen should you lean toward one suit? →
An early discard preference, tested under a named scoring sheet.
Exploratory simulation · scope and limits insideTake the pung, or stay concealed? →
A focused choice about eligible dragons and value winds.
Exploratory simulation · scope and limits insideEarlier research notes
Archived summaries use different experiment designs. They do not include the same uncertainty reporting as the September matched-deal batch. Treat their claims as exploratory, not established strategy.
Browse 9 earlier reports
- Taiwanese ClassicShould you ever turn down a winning tile? →
- Taiwanese ClassicDoes calling a chow really cheapen your hand? →
- Taiwanese ClassicAre kongs worth chasing? →
- Taiwanese ClubAre kongs worth chasing on the club sheet? →
- Hong KongCalling every pung gets you there faster — what's the harm? →
- Hong KongThe table looks dangerous — should you abandon your hand? →
- Japanese RiichiDoesn't declaring riichi just warn everyone you're ready? →
- Japanese RiichiSomeone declared riichi — fold everything, right? →
- Chinese OfficialUnder the eight-point minimum, is speed or patience the better friend? →