Contract Bridge vs. Uno
Comparing 2 standards across 25 specifications. 25 key differences identified.
Contract Bridge is a trick-taking card game for four players in two fixed partnerships, governed internationally by the World Bridge Federation (WBF). Play consists of an auction bidding phase to determine the contract (trump suit and number of tricks required above 6) followed by card play, scored using vulnerability and penalty multipliers.
Uno is a 108-card shedding game governed by official Mattel standards. Official rules strictly prohibit stacking draw cards (+2 on +2 or +4 on +4); affected players must draw and forfeit their turn. Players may legally finish on action cards, and a Wild Draw 4 may only be played when holding no cards of the active color.
Specification Comparison Table
25 Parameters| Parameter / Spec | ||
|---|---|---|
|
Governing Body
|
World Bridge Federation (WBF) | — |
|
Total Players
|
4 in 2 partnerships (North-South, East-West) | — |
|
Deck Size
|
52 cards (13 dealt per player) | — |
|
Base Book Tricks
|
6 tricks (contract level adds to 6) | — |
|
Total Tricks Available
|
13 tricks | — |
|
Suit Hierarchy (Low to High)
|
Clubs (♣), Diamonds (♦), Hearts (♥), Spades (♠), No Trump (NT) | — |
|
Major Suits
|
Hearts (♥), Spades (♠) 30 pts per trick | — |
|
Minor Suits
|
Clubs (♣), Diamonds (♦) 20 pts per trick | — |
|
No Trump 1st Trick Value
|
40 points (30 pts subsequent) | — |
|
Game Threshold
|
100 trick points in one deal | — |
|
Small Slam Level
|
12 tricks (Level 6 Contract) | — |
|
Grand Slam Level
|
13 tricks (Level 7 Contract) | — |
|
Governing Publisher
|
— | Mattel |
|
Total Deck Size
|
— | 108 cards |
|
Starting Hand Size
|
— | 7 cards |
|
Target Winning Score
|
— | 500 points |
|
Card Stacking (+2 / +4)
|
— | Prohibited (Illegal) |
|
Ending on Action Card
|
— | Permitted (Legal) |
|
Wild Draw 4 Legality
|
— | Legal only if holding no active color |
|
False Challenge Penalty
|
— | 6 cards |
|
Guilty Challenge Penalty
|
— | 4 cards |
|
Uncalled Uno Penalty
|
— | 2 cards |
|
Numbered Cards Value (0–9)
|
— | Face Value (0–9) points |
|
Action Cards Value (Skip/Rev/+2)
|
— | 20 points |
|
Wild Cards Value (Wild/Wild +4)
|
— | 50 points |