Useful links

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Online tournaments:

http://logicmastersindia.com/home/ - Indian online sudoku and logical tournament every month. Authors from all over the world

http://www.argio-logic.net/ - Italian online tournament every week, Roulette, Contest, Classic only Contest, Hybrids and Headshrinker

http://www.puzzlefountain.com/ - almost every week online tournaments with logical puzzles, occasionally also sudoku tournaments

http://www.e-sudoku.fr/ - French web site with online classic sudoku

http://croco-puzzle.com/ - German online logical puzzles every day

 http://killersudokuonline.com/ - online source of killer sudoku puzzles

http://kwontomloop.com/ - every day source of Slither link puzzles

http://www.sachsentext.de/en/ - variety of online sudoku and logical puzzles

http://www.speedsudoku.com/public.php?mode=home - speed sudoku for 2-8 players

http://cs.sudokucup.com/ - Czech online sudoku tournament - twice a year

http://forsmarts.com/eng/ - logic games and puzzles by V. Portugalov

http://www.puzzleup.com/ - Turkish online logical puzzles tournament

http://www.fed-sudoku.eu/enindex.php?co=  - every day online sudoku

 

 

Related pages:

http://www.conceptispuzzles.com/

http://motris.livejournal.com - Thomas Snyder’s blog

http://valezius.blogspot.com - Zoltán Horváth’s blog

http://www.ukpuzzles.org/ - Official web page of the UK puzzle association