Dominoes vs. Mahjong
Comparing 2 standards across 18 specifications. 18 key differences identified.
Dominoes is a family of tile-matching games played with standardized rectangular tiles divided into two square ends marked with pips (0 to 6 in Double-Six sets). Primary variants include the Draw game, Block game, and Mexican Train, with official tournament standards governing Double satisfaction, train opening markers, and pip-count scoring.
Mahjong is a 4-player tile-matching game originating in China, played with 136 or 144 tiles across Suits (Dots, Bamboo, Characters) and Honors (Winds and Dragons). The objective is to build a winning 14-tile hand composed of four melds (Chows/sequences or Pungs/triplets) and one pair, with official Japanese Riichi rules requiring at least one valid Yaku (scoring condition).
Specification Comparison Table
18 Parameters| Parameter / Spec | ||
|---|---|---|
|
Double-6 Set Size
|
28 tiles (up to 6-6) | — |
|
Double-9 Set Size
|
55 tiles (up to 9-9) | — |
|
Double-12 Set Size
|
91 tiles (standard for Mexican Train) | — |
|
Double-15 Set Size
|
136 tiles (large group sets) | — |
|
Standard Tile Dimensions
|
1.875 × 0.9375 × 0.25 inches (48 × 24 × 6.5 mm) | — |
|
Professional Tile Size
|
2.0 × 1.0 × 0.375 inches (51 × 25 × 9.5 mm) | — |
|
Jumbo Tile Size
|
2.0 × 1.0 × 0.50 inches (51 × 25 × 12.7 mm) | — |
|
Tournament Tile Size
|
2.125 × 1.0625 × 0.50 inches (54 × 27 × 12.7 mm) | — |
|
Formula for Tiles in Set
|
(n + 1)(n + 2) ÷ 2 where n = highest pip count | — |
|
Standard Tile Count
|
— | 136 (Riichi) or 144 (Chinese with Flowers) tiles |
|
Suit Tiles (Dots, Bams, Craks)
|
— | 108 tiles (4 of each 1–9) |
|
Wind Honor Tiles (E, S, W, N)
|
— | 16 tiles (4 of each wind) |
|
Dragon Honor Tiles (G, R, W)
|
— | 12 tiles (4 Green, Red, White) |
|
Bonus Flower & Season Tiles
|
— | 8 tiles (Chinese / American sets) |
|
Starting Hand Size
|
— | 13 tiles (Dealer starts with 14) |
|
Winning Hand Structure
|
— | 4 Melds + 1 Pair 14 tiles total |
|
Riichi Tile Dimensions
|
— | 26 × 19 × 16 to 28 × 21 × 16.5 mm (compact) |
|
Chinese Large Tile Size
|
— | 34 × 25 × 19 to 38 × 28 × 21 mm (heavy) |