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72-400: 13 Committee Leaders (including Board members as a whole), 464 WCA Delegates (excluding trainees), The World Cube Association ( WCA ) is the worldwide non-profit organization that regulates and holds competitions for mechanical puzzles that are operated by twisting groups of pieces, commonly known as twisty puzzles (a subcategory of combination puzzles ). The most famous of those puzzles

144-455: A beta release . Its name was chosen as a compound of Git and hub . GitHub, Inc. was originally a flat organization with no middle managers, instead relying on self-management . Employees could choose to work on projects that interested them ( open allocation ), but the chief executive set salaries. In 2014, the company added a layer of middle management in response to serious harassment allegations against its senior leadership. As

216-576: A series B round . The lead investor was Sequoia Capital , and other investors were Andreessen Horowitz , Thrive Capital , IVP (Institutional Venture Partners) and other venture capital funds. The company was then valued at approximately $ 2 billion. As of 2023, GitHub was estimated to generate $ 1 billion in revenue. The GitHub service was developed by Chris Wanstrath , P. J. Hyett , Tom Preston-Werner , and Scott Chacon using Ruby on Rails , and started in February 2008. The company, GitHub, Inc.,

288-509: A static web hosting service for blogs , project documentation, and books. All GitHub Pages content is stored in a Git repository as files served to visitors verbatim or in Markdown format. GitHub is integrated with Jekyll static website and blog generator and GitHub continuous integration pipelines. Each time the content source is updated, Jekyll regenerates the website and automatically serves it via GitHub Pages infrastructure. Like

360-409: A Campus Expert, applicants must complete an online training course with multiple modules to develop community leadership skills. GitHub also provides some software as a service (SaaS) integrations for adding extra features to projects. Those services include: GitHub Sponsors allows users to make monthly money donations to projects hosted on GitHub. The public beta was announced on May 23, 2019, and

432-406: A cloud provider and has been available as of November 2011 . In November 2020, source code for GitHub Enterprise Server was leaked online in an apparent protest against DMCA takedown of youtube-dl . According to GitHub, the source code came from GitHub accidentally sharing the code with Enterprise customers themselves, not from an attack on GitHub servers. In 2008, GitHub introduced GitHub Pages,

504-559: A community, platform and business. Under Microsoft, the service was led by Xamarin 's Nat Friedman , reporting to Scott Guthrie , executive vice president of Microsoft Cloud and AI. Nat Friedman resigned November 3, 2021; he was replaced by Thomas Dohmke. There have been concerns from developers Kyle Simpson, JavaScript trainer and author, and Rafael Laguna, CEO at Open-Xchange over Microsoft's purchase, citing uneasiness over Microsoft's handling of previous acquisitions, such as Nokia's mobile business and Skype . This acquisition

576-673: A larger regular cuboid puzzle and fusing together some of the pieces to make larger pieces. In the formulae for piece configuration, the configuration of the fused pieces is given in brackets. Thus, (as a simple regular cuboid example) a 2(2,2)x2(2,2)x2(2,2) is a 2×2×2 puzzle, but it was made by fusing a 4×4×4 puzzle. Puzzles which are constructed in this way are often called "bandaged" cubes. However, there are many irregular cuboids that have not (and often could not) be made by bandaging. Commercial name: Skewb Geometric shape: Cube Piece configuration: 3x3x3 Bandaged Cubes Geometric shape: Cube Piece configuration: various A bandaged cube

648-555: A later time. In addition, GitHub supports the following formats and features: GitHub's Terms of Service do not require public software projects hosted on GitHub to meet the Open Source Definition . The terms of service state, "By setting your repositories to be viewed publicly, you agree to allow others to view and fork your repositories." GitHub Enterprise is a self-managed version of GitHub with similar functionality. It can be run on an organization's hardware or

720-577: A registered user account, users can have discussions, manage repositories, submit contributions to others' repositories, and review changes to code . GitHub began offering limited private repositories at no cost in January 2019 (limited to three contributors per project). Previously, only public repositories were free. On April 14, 2020, GitHub made "all of the core GitHub features" free for everyone, including "private repositories with unlimited collaborators." The fundamental software that underpins GitHub

792-522: A result of the scandal, Tom Preston-Werner resigned from his position as CEO. GitHub was a bootstrapped start-up business , which in its first years provided enough revenue to be funded solely by its three founders and start taking on employees. In July 2012, four years after the company was founded, Andreessen Horowitz invested $ 100 million in venture capital with a $ 750 million valuation. In July 2015 GitHub raised another $ 250 million (~$ 314 million in 2023) of venture capital in

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864-416: A search engine are available for issue tracking. For version control, Git (and, by extension, GitHub) allows pull requests to propose changes to the source code. Users who can review the proposed changes can see a diff between the requested changes and approve them. In Git terminology, this action is called "committing" and one instance of it is a "commit." A history of all commits is kept and can be viewed at

936-510: A significant user of GitHub, using it to host open-source projects and development tools such as .NET Core , Chakra Core , MSBuild , PowerShell , PowerToys , Visual Studio Code , Windows Calculator , Windows Terminal and the bulk of its product documentation (now to be found on Microsoft Docs ). On June 4, 2018, Microsoft announced its intent to acquire GitHub for US$ 7.5 billion (~$ 8.96 billion in 2023). The deal closed on October 26, 2018. GitHub continued to operate independently as

1008-401: A statement denying Horvath's allegations. However, following an internal investigation, GitHub confirmed the claims. GitHub's CEO Chris Wanstrath wrote on the company blog, "The investigation found Tom Preston-Werner in his capacity as GitHub's CEO acted inappropriately, including confrontational conduct, disregard of workplace complaints, insensitivity to the impact of his spouse's presence in

1080-403: A total of 135,000 repositories. In 2010, GitHub was hosting 1 million repositories. A year later, this number doubled. ReadWriteWeb reported that GitHub had surpassed SourceForge and Google Code in total number of commits for the period of January to May 2011. On January 16, 2013, GitHub passed the 3 million users mark and was then hosting more than 5 million repositories. By the end of

1152-491: A website that enables designers to market royalty-free digital images . The illustration GitHub chose was a character that Oxley had named Octopuss. Since GitHub wanted Octopuss for their logo (a use that the iStock license disallows), they negotiated with Oxley to buy exclusive rights to the image. GitHub renamed Octopuss to Octocat, and trademarked the character along with the new name. Later, GitHub hired illustrator Cameron McEfee to adapt Octocat for different purposes on

1224-469: Is Git itself, written by Linus Torvalds , creator of Linux. The additional software that provides the GitHub user interface was written using Ruby on Rails and Erlang by GitHub, Inc. developers Wanstrath, Hyett, and Preston-Werner. The primary purpose of GitHub is to facilitate the version control and issue tracking aspects of software development. Labels, milestones, responsibility assignment, and

1296-1399: Is 5x5x5, teraminx is 7x7x7, petaminx is 9x9x9 Commercial Name: Impossiball Geometric shape: Rounded icosahedron Piece configuration: 2x2x2 Commercial Name: Alexander's Star Geometric shape: Great dodecahedron Piece configuration: 3x3x3 Commercial Name: BrainTwist Geometric shape: Tetrahedron Piece configuration: 2x2x2 Commercial Name: Dogic Geometric shape: Icosahedron Piece configuration: 4x4x4 Commercial Name: Skewb Diamond Geometric shape: Octahedron Piece configuration: 3x3x3 Commercial Name: Skewb Ultimate Geometric shape: Dodecahedron Piece configuration: 3x3x3 Commercial Name: Pyraminx Crystal Geometric shape: Dodecahedron Piece configuration: 3x3x3 Commercial Name: Magic 120-cell Geometric shape: 120-cell Piece configuration: 3×3×3×3 Name: holey burr puzzles with level > 1 Piece configuration: 6 interlocking sticks Commercial Name: Minus Cube Piece configuration: 2×2×2-1 sliding cubes Commercial Name: Rubik's Clock Piece configuration: 3×3×2 12-position dials Commercial Name: Rubik's Snake Piece configuration: 1x1x24 Commercial Name: Snake Cube Piece configuration: 1x1x27 or 1x1x64 Sliding piece puzzle Piece configuration: 7×7 Sliding piece puzzle with picture Piece configuration: 7×7 GitHub GitHub ( / ˈ ɡ ɪ t h ʌ b / )

1368-716: Is a cube where some of the pieces are stuck together. Commercial name: Square One Geometric shape: Cube Commercial name: Tony Fisher's Golden Cube Geometric shape: Cube Commercial name: Lan Lan Rex Cube (Flower Box) Geometric shape: Cube Commercial name: Mixup Cube Geometric shape: Cube Commercial Name: Pyraminx Geometric shape: Tetrahedron Piece configuration: 3×3×3 Commercial Name: Pyramorphix Geometric shape: Tetrahedron Piece configuration: 2×2×2 Commercial Name: Megaminx Geometric shape: Dodecahedron Piece configuration: 3×3×3 Commercial Name: Gigaminx, Teraminx, Petaminx Geometric shape: Dodecahedron Piece configuration: gigaminx

1440-709: Is a developer platform that allows developers to create, store, manage and share their code. It uses Git software, which provides distributed version control of access control , bug tracking , software feature requests, task management , continuous integration , and wikis for every project. Headquartered in California , it has been a subsidiary of Microsoft since 2018. It is commonly used to host open source software development projects. As of January 2023 , GitHub reported having over 100 million developers and more than 420 million repositories , including at least 28 million public repositories. It

1512-550: Is a variation on a Rubik's Cube in which the aim is to solve one or more Sudoku puzzles on the sides or rows. The toy was originally created in 2006 by Jay Horowitz in Sebring , Ohio . It was subsequently produced in China, marketed and sold internationally. The Sudoku Cube was invented by veteran toy maker Jay Horowitz, a puzzle inventor who primarily reproduced older toys for the collectibles market. Horowitz first encountered

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1584-843: Is also their work to provide regularly. Similarly, the Financial Committee pays invoices and taxes that are directed to the WCA, after consultation and with permission of the WCA Board. Every quarter, they report and advise the WCA Board on all finances of the WCA to give them a summary of the scope of financial possibilities and options that the WCA has. The WCA Treasurer is a member of the Financial Committee. WCA Integrity Committee The WCA Integrity Committee (WIC) performs independent investigations regarding WCA community members and incidents during WCA Competitions or on official, online WCA platforms. These incidents are alleged violations of

1656-969: Is an Advisory Committee of the WCA. This team has the role to oversee and support the development of an archive of the organization. As of 2024 Chris Wright ( United Kingdom ), Ekaterina Kaneva ( Russia ), Georel Ulangkaya ( Philippines ), Oliver Wheat ( United Kingdom ), Sebastiano Tronto ( Italy ) Braden Richards ( United States ), Hippolyte Moreau ( France ), John Edison Ubaldo ( Philippines ), Louis Meunier ( United States ), Sherry Tao ( United States ), Stanislaw Ulbrych ( Republic of Ireland ) Ryan Simpson ( United Kingdom ), Tianyu Zhao ( China ) Baha Alshwaiki ( Jordan ), Carter Thomas ( United States ), Hayden Ng ( Australia ), Juan M. Gerardo ( United States ), Marcus Laurantzon ( Sweden ), Ram Thakkar ( India ), Sherry Tao ( United States ), Thu Phuong Ngo ( Canada ), Trishan Gupta ( India ), Ziyi Chen ( China ) Lars Johan Folde ( Denmark ), Combination puzzles A combination puzzle

1728-459: Is an open source project on GitHub . The WCA Software Team (WST) is responsible for bringing continuous improvements to the website frequently, to allow all of the community members to easily access and enjoy WCA content. Recently internationalization was implemented, so now people can use the WCA website in their native language. Other important milestones are the development of the registration system, and especially payments. The team keeps an eye on

1800-510: Is indicated on the gist page. GitHub launched a new program called the GitHub Student Developer Pack to give students free access to more than a dozen popular development tools and services. GitHub partnered with Bitnami , Crowdflower , DigitalOcean , DNSimple, HackHands , Namecheap , Orchestrate, Screenhero, SendGrid , Stripe , Travis CI , and Unreal Engine to launch the program. In 2016, GitHub announced

1872-424: Is required by law. This includes keeping public repositories services, including those for open source projects, available and accessible to support personal communications involving developers in sanctioned regions. Developers who feel that they should not have restrictions can appeal for the removal of said restrictions, including those who only travel to, and do not reside in, those countries. GitHub has forbidden

1944-448: Is responsible for approving and announcing WCA Competitions. They review and announce competition submissions to the WCA. The WCA Executive Assistants Team (WEAT) assists the WCA Board of Directors with administrative tasks. The WCA Financial Committee (WFC) is responsible for everything regarding finances within the WCA. As an Advisory Committee, they manage the finances and accounts of the WCA by an approved annual budget proposal, which

2016-524: Is responsible for managing all data in the databases of the WCA, especially competition results and personal data. The biggest regular task of the WCA Results Team is posting results of WCA competitions to the WCA website, once the Delegate of the competition has reported them. They check if the results were submitted correctly and if so, transfer them into the WCA results database. This work of

2088-647: Is responsible for quality improvement. The WCA Regulations Committee (WRC) was founded to support the WCA Board in maintaining the WCA Regulations in 2011. Over the years, their area of responsibility has been broadened, they currently handle all issues which are related to the application, improvement, and development of the WCA Regulations. They support Delegates on any kind of procedural matters happening at competitions and decide on unresolved and uncovered incidents. The WRC regularly publishes WCA internal reports to help all Delegates and improve their knowledge of

2160-413: Is responsible for reviewing and resolving appeals regarding decisions made by other WCA Staff. The WAC provides an independent and impartial review process to ensure that decisions are fair, reasonable, and in accordance with WCA policies and regulations. The WCA Communication Team (WCT) is in charge of overseeing and supporting communications. This includes answering general requests that are submitted via

2232-422: Is solved by achieving a particular combination starting from a random (scrambled) combination . Often, the solution is required to be some recognisable pattern such as "all like colours together" or "all numbers in order". The most famous of these puzzles is the original Rubik's Cube , a cubic puzzle in which each of the six faces can be independently rotated. Each of the six faces is a different colour, but each of

World Cube Association - Misplaced Pages Continue

2304-689: Is the Rubik's Cube . Since the start of the WCA there have been over 11,700 competitions. The WCA was founded by Ron van Bruchem of the Netherlands and Tyson Mao of the United States in 2004. The goal of the World Cube Association is to have "more competitions in more countries with more people and more fun, under fair and equal conditions." In 2017, they started work to become a non-profit organization and on November 20, 2017,

2376-494: Is the leadership team of the WCA and its highest authority. WCA Directors are Officers of the WCA and also have the role of Full Delegate. The WCA Board is responsible for the WCA organization as a whole. They discuss issues that affect the WCA and advise the committees. The WCA Board oversees that the applications to hold WCA Competitions meet fair conditions to ensure equality throughout the World, and finally it approves and announces

2448-454: Is the world's largest source code host as of June 2023 . Over five billion developer contributions were made to more than 500 million open source projects in 2024. The development of the GitHub platform began on October 19, 2007. The site was launched in April 2008 by Tom Preston-Werner , Chris Wanstrath , P. J. Hyett and Scott Chacon after it had been available for a few months as

2520-505: Is usually used for larger projects. Tom Preston-Werner débuted the feature at a Ruby conference in 2008. Gist builds on the traditional simple concept of a pastebin by adding version control for code snippets, easy forking, and TLS encryption for private pastes. Because each "gist" is its own Git repository, multiple code snippets can be contained in a single page, and they can be pushed and pulled using Git. Unregistered users could upload Gists until March 19, 2018, when uploading Gists

2592-570: The Svalbard Global Seed Vault . The archive contained the code of all active public repositories, as well as that of dormant but significant public repositories. The 21 TB of data was stored on piqlFilm archival film reels as matrix (2D) barcode ( Boxing barcode ), and is expected to last 500–1,000 years. The GitHub Archive Program is also working with partners on Project Silica, in an attempt to store all public repositories for 10,000 years. It aims to write archives into

2664-1585: The regular polyhedra and many of the semi-regular and stellated polyhedra have been made. A cuboid is a rectilinear polyhedron . That is, all its edges form right angles. Or in other words (in the majority of cases), a box shape. A regular cuboid, in the context of this article, is a cuboid puzzle where all the pieces are the same size in edge length. Pieces are often referred to as "cubies". Commercial name: Pocket Cube Geometric shape: Cube Piece configuration: 2×2×2 Commercial name: Rubik's Cube Geometric shape: Cube Piece configuration: 3×3×3 Commercial name: Rubik's Revenge Geometric shape: Cube Piece configuration: 4×4×4 Commercial name: Professor's Cube Geometric shape: Cube Piece configuration: 5×5×5 Commercial name: V-CUBE Geometric shape: Cube Piece configuration: 2×2×2 to 11×11×11 4-Dimensional puzzle Geometric shape: Tesseract Piece configuration: 3×3×3×3 Non-uniform cuboids Geometric shape: Cuboid Piece configuration (1st): 2×2×3 Piece configuration (2nd): 2×3×3 Piece configuration (3rd): 3×4×4 Piece configuration (4th): 2×2×6 Siamese cubes Geometric shape: Fused cubes Piece configuration: two 3×3×3 fused 1×1×3 Commercial name: Void cube Geometric shape: Menger Sponge with 1 iteration Piece configuration: 3x3x3-7. Commercial name: Crazy cube type I Crazy cube type II Geometric shape: Cube Piece configuration: 4x4x4. Geometric shape: Cube Piece configuration: 17x17x17 There are many puzzles which are mechanically identical to

2736-496: The Regulations. This includes regulation changes based on feedback from the WCA staff and the community, while also taking into account their insights and reports of incidents that occur during WCA competitions. New versions of the Regulations are published yearly or bi-yearly. Another part of their work is to encourage members of the WCA community to create and maintain translations of the Regulations. The WCA Results Team (WRT)

2808-617: The Results Team assures the data quality of the databases of the WCA. Each such posting procedure is ended by creating a public post on the WCA website, which are visible on the frontpage of the WCA website. Apart from posting competition results, the WCA Results Team is also responsible for making corrections to competition results if necessary and they are in charge of administering all WCA profile pages. This includes changing user data, like dates of birth, according to verified requests and managing profile picture requests. The WCA website

2880-655: The Spirit, Code of Conduct, Code of Ethics and/or Regulations of the WCA. They can be contacted by WCA officials or community members to be made aware of possible violations at WCA competitions. Initial contact with the team is usually through emails or directly from any competitor or Delegate. If the Team Leader agrees that this case falls under the WIC's jurisdiction, a WIC case is initiated. The team attempts to correspond with everyone involved to provide an independent report for

2952-454: The WCA website and maintaining the WCA's social media accounts. The team responds to multiple emails a day regarding starting cubing competitions in new areas, what to do for people's first competition, big media requests about competitive speedcubing, and many other issues. Many requests are also forwarded to the appropriate WCA Team or Delegate if they are regarding a particular competition or region. The WCA Competition Announcement Team (WCAT)

World Cube Association - Misplaced Pages Continue

3024-399: The combinations that are mechanically possible from a disassembled cube are possible by manipulation of the puzzle. Since neither unpeeling the stickers nor disassembling the cube is an allowed operation, the possible operations of rotating various faces limit what can be achieved. Although a mechanical realization of the puzzle is usual, it is not actually necessary. It is only necessary that

3096-502: The competition results to the WCA Results Team. The Software Team also updates the official WCA Scrambler, TNoodle, which is currently on version 1.2.2 as of February 27, 2024, according to data provided by the WCA Regulations Committee if changes are needed. Additionally, they maintain and develop administrative tools for various Delegates, Committees, and board members on the WCA website. The WCA Archive Team (WAT)

3168-454: The competitions accordingly. After competitions, they read reports from the WCA delegates about competitions to be up to date on the WCA activity worldwide and take part in the discussion of any incidents that occur. The Board is also responsible for helping the WCA fulfill its mission of “more competitions in more countries with more people and more fun, under fair and equal conditions.” WCA Appeals Committee The WCA Appeals Committee (WAC)

3240-525: The first year: it pledges to cover payment processing costs and match sponsorship payments up to $ 5,000 per developer. Furthermore, users can still use similar services like Patreon and Open Collective and link to their websites. In July 2020, GitHub stored a February archive of the site in an abandoned mountain mine in Svalbard , Norway, part of the Arctic World Archive and not far from

3312-468: The investigation. Once a decision is made, they inform all relevant persons of any actions and make a public announcement if necessary. The WCA Marketing Team (WMT) is responsible for managing WCA relationships with external partners as well as working closely with the WCA Brand. They are currently seeking help with WCA Merchandise, Sponsorships, and Contracts. The WCA Quality Assurance Committee (WQAC)

3384-536: The launch of the GitHub Campus Experts program to train and encourage students to grow technology communities at their universities. The Campus Experts program is open to university students 18 years and older worldwide. GitHub Campus Experts are one of the primary ways that GitHub funds student-oriented events and communities, Campus Experts are given access to training, funding, and additional resources to run events and grow their communities. To become

3456-433: The media through a spokesperson, saying: GitHub is subject to US trade control laws, and is committed to full compliance with applicable law. At the same time, GitHub's vision is to be the global platform for developer collaboration, no matter where developers reside. As a result, we take seriously our responsibility to examine government mandates thoroughly to be certain that users and customers are not impacted beyond what

3528-421: The molecular structure of quartz glass platters, using a high-precision petahertz pulse laser, i.e. one that pulses a quadrillion (1,000,000,000,000,000) times per second. In March 2014, GitHub programmer Julie Ann Horvath alleged that founder and CEO Tom Preston-Werner and his wife, Theresa, engaged in a pattern of harassment against her that led to her leaving the company. In April 2014, GitHub released

3600-458: The nine pieces on a face is identical in colour in the solved condition. In the unsolved condition, colours are distributed amongst the pieces of the cube. Puzzles like the Rubik's Cube which are manipulated by rotating a section of pieces are popularly called twisty puzzles . They are often face-turning, but commonly exist in corner-turning and edge-turning varieties. The mechanical construction of

3672-502: The original Sudoku puzzle when a woman sitting next to him on a plane ride explained it to him. After being introduced to the puzzle, Horowitz wanted to introduce the puzzle to the games business, and had the idea of combining it with the Rubik's cube. Horowitz already had access to molds for the Rubik's Cube, as he owned the Ideal Toy Company which owned molds. Horowitz worked for a month until he figured out how to combine

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3744-409: The project accepts waitlist registrations. The Verge said that GitHub Sponsors "works exactly like Patreon " because "developers can offer various funding tiers that come with different perks, and they'll receive recurring payments from supporters who want to access them and encourage their work" except with "zero fees to use the program." Furthermore, GitHub offers incentives for early adopters during

3816-413: The puzzle will usually define the rules by which the combination of pieces can be altered. This leads to some limitations on what combinations are possible. For instance, in the case of the Rubik's Cube, there are a large number of combinations that can be achieved by randomly placing the coloured stickers on the cube, but not all of these can be achieved by manipulating the cube rotations. Similarly, not all

3888-538: The regular cuboids listed above but have variations in the pattern and colour of design. Some of these are custom made in very small numbers, sometimes for promotional events. The ones listed in the table below are included because the pattern in some way affects the difficulty of the solution or is notable in some other way. Commercial name: Calendar Cube Geometric shape: Cube Piece configuration: 3×3×3 Commercial Name: Magic Cube Geometric shape: Cube Piece configuration: 3×3×3 The Sudoku Cube or Sudokube

3960-422: The rest of GitHub, it includes free and paid service tiers. Websites generated through this service are hosted either as subdomains of the github.io domain or can be connected to custom domains bought through a third-party domain name registrar . GitHub Pages supports HTTPS encryption. GitHub also operates a pastebin -style site called Gist , which is for code snippets , as opposed to GitHub proper, which

4032-472: The rules for the operations are defined. The puzzle can be realized entirely in virtual space or as a set of mathematical statements. In fact, there are some puzzles that can only be realized in virtual space. An example is the 4-dimensional 3×3×3×3 tesseract puzzle, simulated by the MagicCube4D software. There have been many different shapes of Rubik type puzzles constructed. As well as cubes, all of

4104-503: The sale bolstered interest in competitors: Bitbucket (owned by Atlassian ), GitLab and SourceForge (owned by BIZX, LLC) reported that they had seen spikes in new users intending to migrate projects from GitHub to their respective services. In September 2019, GitHub acquired Semmle , a code analysis tool. In February 2020, GitHub launched in India under the name GitHub India Private Limited. In March 2020, GitHub announced that it

4176-411: The site provides social networking -like functions such as feeds, followers, wikis (using wiki software called Gollum ), and a social network graph to display how developers work on their versions (" forks ") of a repository and what fork (and branch within that fork) is newest. Anyone can browse and download public repositories, but only registered users can contribute content to repositories. With

4248-514: The state of California accepted the initial registration of the World Cube Association. The organization is run by the board members. It assigns different teams and committees as well as delegates who can organize official competitions. The presence of a delegate is required to make the competition official. As of June 2024, over 230,000 people from around the world have participated in WCA competitions and over 11,700 competitions have been held. The WCA Board of Directors (or simply WCA Board)

4320-564: The two puzzles together, and then when he figured it out, he "did not sleep for three days" while he worked out how to best arrange the numbers to create 18 unique Sudoku puzzles within the cube. Horowitz then patented the numerical design that he created. Mass production was completed in China by American Classic Toy Inc, a company belonging to Horowitz. The product was sold in the United States in retailers such as Barnes & Noble and FAO Schwarz and sold for $ 9.87 each. The price

4392-569: The use of VPNs and IP proxies to access the site from sanctioned countries, as purchase history and IP addresses are how they flag users, among other sources. On December 4, 2014, Russia blacklisted GitHub.com because GitHub initially refused to take down user-posted suicide manuals. After a day, Russia withdrew its block, and GitHub began blocking specific content and pages in Russia. On December 31, 2014, India blocked GitHub.com along with 31 other websites over pro- ISIS content posted by users;

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4464-485: The website all the time to ensure it is permanently available and they react quickly whenever something is wrong. The Software Team develops new software for various tasks within the WCA whenever needed. Thus, they created an app simplifying translating the website, to engage more people translating into their language. On 21 August 2012 the WCA Workbook assistant has released, which is used by all delegates to submit

4536-454: The website and promotional materials; McEfee and various GitHub users have since created hundreds of variations of the character, which are available on The Octodex . Projects on GitHub can be accessed and managed using the standard Git command-line interface; all standard Git commands work with it. GitHub also allows users to browse public repositories on the site. Multiple desktop clients and Git plugins are also available. In addition,

4608-567: The workplace, and failure to enforce an agreement that his spouse should not work in the office." Preston-Werner subsequently resigned from the company. The firm then announced it would implement new initiatives and trainings "to make sure employee concerns and conflicts are taken seriously and dealt with appropriately." On July 25, 2019, a developer based in Iran wrote on Medium that GitHub had blocked his private repositories and prohibited access to GitHub pages. Soon after, GitHub confirmed that it

4680-557: The year, the number of repositories was twice as great, reaching 10 million repositories. In 2015, GitHub opened an office in Japan, its first outside of the U.S. On February 28, 2018, GitHub fell victim to the third-largest distributed denial-of-service (DDoS) attack in history, with incoming traffic reaching a peak of about 1.35 terabits per second. On June 19, 2018, GitHub expanded its GitHub Education by offering free education bundles to all schools. From 2012, Microsoft became

4752-497: Was acquiring npm , a JavaScript packaging vendor, for an undisclosed sum of money. The deal was closed on April 15, 2020. In early July 2020, the GitHub Archive Program was established to archive its open-source code in perpetuity. GitHub's mascot is an anthropomorphized "octocat" with five octopus-like arms . The character was created by graphic designer Simon Oxley as clip art to sell on iStock ,

4824-499: Was chosen specifically because each number only appears once. Horowitz promoted his new product in at toy fairs such as the 2007 American International Toy Fair and Hong Kong Toys and Games Fair . Adrienne Citrin, the spokeswoman for the Toy Industry Association , mentioned that Sudoku fans who felt like they had mastered the original paper version of the puzzle were interested in the new product. The product

4896-588: Was formed in 2007 and is located in San Francisco. On February 24, 2009, GitHub announced that within the first year of being online, GitHub had accumulated over 46,000 public repositories, 17,000 of which were formed in the previous month. At that time, about 6,200 repositories had been forked at least once, and 4,600 had been merged. That same year, the site was used by over 100,000 users, according to GitHub, and had grown to host 90,000 unique public repositories, 12,000 having been forked at least once, for

4968-446: Was in line with Microsoft's business strategy under CEO Satya Nadella , which has seen a larger focus on cloud computing services, alongside the development of and contributions to open-source software. Harvard Business Review argued that Microsoft was intending to acquire GitHub to get access to its user base, so it can be used as a loss leader to encourage the use of its other development products and services. Concerns over

5040-452: Was now blocking developers in Iran , Crimea , Cuba , North Korea , and Syria from accessing private repositories. However, GitHub reopened access to GitHub Pages days later, for public repositories regardless of location. It was also revealed that using GitHub while visiting sanctioned countries could result in similar actions occurring on a user's account. GitHub responded to complaints and

5112-528: Was originally launched in the US and then sold internationally, exporting to Spain, France, South Africa and the United Kingdom. Shortly after release, there were several imitator products sold on Amazon under the name "Sudokube". An irregular cuboid, in the context of this article, is a cuboid puzzle where not all the pieces are the same size in edge length. This category of puzzle is often made by taking

5184-446: Was restricted to logged-in users, reportedly to mitigate spamming on the page of recent Gists. Gists' URLs use hexadecimal IDs, and edits to Gists are recorded in a revision history , which can show the text difference of thirty revisions per page with an option between a "split" and "unified" view. Like repositories, Gists can be forked, "starred", i.e., publicly bookmarked, and commented on. The count of revisions, stars, and forks

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