News

Sim vs Play — Probability Meets the Daily Challenge

Eight Bam’s 2026 Card by the Numbers series now includes Sim vs Play: a side-by-side look at how often each hand can reach mahjong in a 10 million game simulation, versus how often it actually wins in the Daily Challenge.

The simulation evaluates every hand on the card concurrently, so the rankings reflect tile and rule probabilities — not player favorites or bot strategy. The Challenge column uses more than 100,000 winning hands from the 2026 season.

One early takeaway

Players may be overlooking some strong multi-suit Runs hands. The simulation ranks them highly because they can pivot across numbers and suits — but tracking those options takes more thought at the table.

What you’ll see

  • Hands — all 72 lines on the card, with Probability and Challenge bars
  • Sections — the same comparison rolled up by card section
  • Sort by Hand/Section, Probability, or Challenge to explore the gaps

Sections view: Probability and Challenge bars by card section

Top five hands by Probability, with Challenge bars alongside

Read the series

  1. Winning Hands — what players win with most
  2. Easiest Hands — what the simulation favors
  3. Best Sections — where strength concentrates on the card
  4. Sim vs Play — probability next to real Challenge results

About Eight Bam

Eight Bam develops American Mahjong Practice, a learning and practice app available for Apple and Android devices. The company also provides online resources and tools to help American Mahjong players improve their skills.