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WikiCards · Card list · Science cards · Edge contraction
Common card · Science
Edge contraction, a Common card
In graph theory, an edge contraction is an operation that removes an edge from a graph while simultaneously merging the two vertices that it previously joined.
- Rarity
- Common
- Domain
- Science
- ATK
- 53
- DEF
- 35
- Power
- 88
- Wikipedia reads a year
- 7,400
Power 88 (ATK + DEF): stronger than 30 % of WikiCards cards.
Edge contraction quiz: 3 questions
Three questions on the Edge contraction card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Vertex ______ is a less restrictive form of this operation.
Answer
identification. Vertex identification is a less restrictive form of this operation. From the Edge contraction article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Counting. Counting 60 · Basal body 57 · Edge contraction 53 · Arg of Karim Khan 48 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
BMW B38 engine. BMW B38 engine 46,000 · Cubic function 33,000 · Three pillars of the European Union 13,000 · Edge contraction 7,400 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- Edge contraction is a fundamental operation in the theory of graph minors.
- Vertex identification is a less restrictive form of this operation.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Edge contraction article was read about 7,400 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 53 and blocks with 35: each hit it takes is cut by 14 %.
How to get Edge contraction
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Edge contraction in the power ranking, all domains together.
- Henry Loaiza-CeballosCommon · History · ATK 53 DEF 35
- Quiggly holeCommon · History · ATK 53 DEF 35
- Sanafir IslandCommon · Nature · ATK 56 DEF 32
- The Peacock SkirtCommon · Science · ATK 54 DEF 34
- Arg of Karim KhanCommon · Society · ATK 48 DEF 40
- Coregonus vandesiusCommon · Nature · ATK 52 DEF 36
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Edge contraction (revision), CC BY-SA 4.0. Photo : Trevorgunn, CC BY-SA 4.0, Wikimedia Commons.
