Sudoku Difficulty Levels
Travel Games For Dummies - Nintendo DS
** Clearance Item: Limited Availability, New, 100% Guaranteed ** How-to-mode / Practice mode / 3 Games Included: Sudoku, Crosswords, and Solitaire / Over 600 puzzles / ESRB Rating E Everyone
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Difficulty ratings
Published puzzles often are ranked in terms of difficulty. Surprisingly, the number of givens has little or no bearing on a puzzle's difficulty. A puzzle with a minimum number of givens may be very easy to solve, and a puzzle with more than the average number of givens can still be extremely difficult to solve. The difficulty of a puzzle is based on the relevance and the positioning of the given numbers rather than the quantity of the numbers.
Computer solvers can estimate the difficulty for a human to find the solution, based on the complexity of the solving techniques required. This estimation allows publishers to tailor their Sudoku puzzles to audiences of varied solving experience. Some online versions offer several difficulty levels.
Most publications sort their Sudoku puzzles into four rating levels, although the actual cut-off points of the levels and indeed the names of the levels themselves can vary widely. Typically, however, the titles are some set of synonyms of "easy", "intermediate", "hard", and "challenging".
Sudoku Keychain
Sudoku Keychain
Shop for Other Jewelry & Key Chains. 3 x 3 1/4 Plastic Sudoku Game Key Chain Super smart model with over 10000 puzzles!
Soduku KeyChain Puzzle Game - KC-2100
Retail: $29.99 (33% off!)
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just clip to your keys and you can take sudoku with you anywhere! features 6 levels of challenging gameplay, helpful hints, and automatic solving function. to play sudoku, just fill in the grids to make every row, every column and every 3 x 3 box contain digits from 1 to 9.
DD Discounts 307544 Mini Sudoku Game On A Key Chain- Case of 24
Retail: $90.03 (23% off!)
(Unbeatable Sale)
blue plastic lcd display sudoku game with keychain attachment. puzzles, sound effects, and comes with instructions for usage as well as the game. 2 batteries required, 1.5 v (not included). measures 3 1/4" x 3 1/8" x 1" and the key ring diameter is 7/8". for ages 3+.