A puzzle is a game, problem, or toy that tests a person's ingenuity or knowledge. In a puzzle, the solver is expected to put pieces together in a logical way, in order to find the solution of the puzzle. There are different genres of puzzles, such as crossword puzzles, word-search puzzles, number puzzles, relational puzzles, and logic puzzles. The academic study of puzzles is called enigmatology.
The Ice Hockey World Championships are an annual international men's ice hockey tournament organized by the International Ice Hockey Federation (IIHF). First officially held at the 1920 Summer Olympics. The IIHF was created in 1908 while the European Championships, the precursor to the World Championships, were first held in 1910. The tournament held at the 1920 Summer Olympics is recognized as the first Ice Hockey World Championship. From 1920 to 1968, the Olympic hockey tournament was also considered the World Championship for that year.
The MIT Mystery Hunt is an annual puzzle hunt competition at the Massachusetts Institute of Technology in Cambridge, Massachusetts. It is one of the oldest and most complex puzzle hunts in the world and attracts roughly 120 teams and 3,000 contestants annually in teams of 5 to 150 people. It has inspired similar competitions at Microsoft, Stanford University, Melbourne University, University of South Carolina, University of Illinois at Urbana–Champaign and University of Aveiro (Portugal) as well as in the Seattle, San Francisco, Miami, Washington, D.C., Indianapolis and Columbus, Ohio metropolitan areas. Because the puzzle solutions often require knowledge of esoteric and eclectic topics, the hunt is sometimes used to exemplify popular stereotypes of MIT students.
The International Collegiate Programming Contest, known as the ICPC, is an annual multi-tiered competitive programming competition among the universities of the world. Directed by ICPC Executive Director and Baylor Professor William B. Poucher, the ICPC operates autonomous regional contests covering six continents culminating in a global World Finals every year. In 2018, ICPC participation included 52,709 students from 3,233 universities in 110 countries.
Sudoku is a logic-based, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids that compose the grid contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.
A mind sport is a game of skill based on intellectual ability.
The World Puzzle Championship is an annual international puzzle competition run by the World Puzzle Federation. All the puzzles in the competition are pure-logic problems based on simple principles, designed to be playable regardless of language or culture.
The World Yo-Yo Contest (WYYC) is the culminating yo-yo competition of the worldwide competitive circuit and is considered the most prestigious yo-yo competition in the world. The winner of this competition in any of the six championship divisions is deemed the World Yo-Yo Champion; the World Yo-Yo Contest is the only event to award such a title. The contest attracts competitors from all over the world and an increasingly large number of spectators. The annual competition is currently run by the International Yo-Yo Federation (IYYF) and the national organization of each year's host nation. As of 2015, 33 countries have sent competitors to the World Yo-Yo Contest from their respective national yo-yo contests. The World Yo-Yo Contest is also known as YoYoCon.
Jana Komrsková is an artistic gymnast from the Czech Republic who competed in the 2000 and 2004 Summer Olympics.
Wei-Hwa Huang is an American puzzler, member of the US Team for the World Puzzle Championship, and game designer.
Sports play a significant part in the life of many Czechs who are generally loyal supporters of their favourite teams or individuals.
The Philadelphia Inquirer Sudoku National Championship, hosted by puzzle master Will Shortz, was an annual sudoku competition run by The Philadelphia Inquirer and held at the Pennsylvania Convention Center in 2007–2009.
Thomas Snyder is an American puzzle creator and world-champion sudoku and logic puzzle solver. He is the first person to win both the World Sudoku Championship and the World Puzzle Championship. Snyder writes a puzzle blog as Dr. Sudoku.
The World Ringette Championships (WRC) is the premier international competition in ringette and is governed by the International Ringette Federation (IRF). Unlike most international competitions, all of the WRC's elite athletes are female rather than male, one of the sport's distinctive features. Competing nations include: Canada, Finland, United States, Sweden, Slovakia and the Czech Republic, with Team Canada and Team Finland having emerged as the sport's top two competing nations. The 2023 World Ringette Championships were held in Calgary, Alberta, Canada and was the sport's 60th anniversary.
Rohan Rao, who goes by the name vopani, is an Indian sudoku and puzzle solver, widely considered as the best sudoku solver of India. He is the reigning Indian Sudoku Champion and Times of India Sudoku Champion. Rao has won 18 national championships, an all-time record, and has been one of the best Indians at the World Sudoku Championship (WSC), World Puzzle Championship (WPC) and Asian Sudoku Championship (ASC). He won the Indian Sudoku Championship nine times, in 2010, 2011, 2012, 2016, 2017, 2018, 2019, 2020, 2021 the Indian Puzzle Championship five times, in 2010, 2011, 2012, 2015, 2017, and the Times National Sudoku Championship four times, in 2012, 2015, 2016, 2019.
The Indian Sudoku Championship is an annual national contest held in India to crown the Indian Sudoku Champion and to select the national team for the Asian Sudoku Championship and World Sudoku Championship. It usually consists of multiple rounds of solving various classic sudoku and its variants, and the scores of players are aggregated for the final rankings. It is conducted by Logic Masters India, which is the Indian affiliate of the World Puzzle Federation.
The FIVB Men's Volleyball World Championship is an international volleyball competition contested by the senior men's national teams of the members of Fédération Internationale de Volleyball (FIVB), the sport's global governing body. The initial gap between championships was variable, but since 1962, they were held every four years. The tournament will be held biennially starting in 2025.
Rishi Puri is a distinguished Indian sudoku solver, renowned for his achievements as a two-time Indian National Sudoku Champion. He is recognized as one of the top three sudoku solvers from India, alongside Rohan Rao and Prasanna Seshadri, excelling in both national and World Sudoku Championships. Rishi clinched the Indian Sudoku Championship titles in 2014 and 2015, and the Times Sudoku Championship in 2013.
The Asian Sudoku Championship (ASC) is an annual international sudoku competition organised by a member of the World Puzzle Federation (WPF). The first official event was held in Jeju Island, South Korea in 2018 and the latest event was held in Hyderabad, India in 2020. National teams are determined by local affiliates of the WPF. The competition typically consists of several classic sudokus and variations to be solved by all competitors over multiple timed rounds.
Logic Masters India is the Indian representative of the World Puzzle Federation (WPF) which is responsible for conducting national sudoku championships since 2008 to select the Indian team for the world championships. It also aims in organizing various sudoku and puzzle activities in India.
