ONLINE TOURNAMENTS:
- logicmastersindia.com – Indian online sudoku and logical tournament every month. Authors from all over the world
- www.argio-logic.net – Italian online tournament every week, Roulette, Contest, Classic only Contest, Hybrids and Headshrinker
- www.puzzlefountain.com – almost every week online tournaments with logical puzzles, occasionally also sudoku tournaments
- www.e-sudoku.fr – French web site with online classic sudoku
- croco-puzzle.com – German online logical puzzles every day
- killersudokuonline.com – online source of killer sudoku puzzles
- kwontomloop.com – every day source of Slither link puzzles
- www.sachsentext.de – variety of online sudoku and logical puzzles
- www.speedsudoku.com – speed sudoku for 2-8 players
- cs.sudokucup.com – Czech online sudoku tournament – twice a year
- forsmarts.com – logic games and puzzles by V. Portugalov
- www.puzzleup.com – Turkish online logical puzzles tournament
- www.fed-sudoku.eu – every day online sudoku
RELATED PAGES:
- www.conceptispuzzles.com
- motris.livejournal.com – Thomas Snyder’s blog
- valezius.blogspot.com – Zoltán Horváth’s blog
- www.ukpuzzles.org – Official web page of the UK puzzle association