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About 2011 Double DecathlonThis competition is designed to have ten different puzzle disciplines to test a range of mental skills.
There are "classic" puzzles (TomTom, Cave, Star Battle), "variants" (Big Tent Party, Make Room for Tapa, Gapped Number Fill, Turning Points), and "hybrids" (Loop the Loops, Almost Simple Loop, Battleship Sudoku).
You may start "2011 Double Decathlon" any time during the 48-hour period during the weekend of 15/16 October.
Your timer will start when you click "Start 2011 Double Decathlon" — then you will have 120 minutes to solve and submit your answers.
A timer will be shown the answer page with the remaining time.
Click to solve Logical Puzzles/Sudoku Online