How our Sudoku difficulty levels work
Printable Puzzle Kit grades Sudoku by a complete human-technique solve: naked singles, hidden singles, locked candidates and naked pairs—not clue count.
Read the guide : How our Sudoku difficulty levels workThe journal
Original printable word searches and clear Sudoku lessons for a satisfying screen-free break.

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Printable Puzzle Kit grades Sudoku by a complete human-technique solve: naked singles, hidden singles, locked candidates and naked pairs—not clue count.
Read the guide : How our Sudoku difficulty levels workChoose Letter or A4, keep large-print text at its intended size and print puzzle pages separately from the answers.
Read the guide : How to print a puzzle cleanlyUse a seed, theme, direction setting and generator version to reproduce a word search or Sudoku and keep its solution matched.
Read the guide : Reproduce a puzzle with its seedExplore a topic
A fresh puzzle for the time of year.
View all seasonal word searchesBrowse original vocabulary packs for seasons and celebrations. Each includes clear word lists, printable grids and matching solutions without an account.
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Follow an interest, one word at a time.
View all themed word searchesChoose Letter or A4, keep large-print text at its intended size and print puzzle pages separately from the answers.
Read the guide : How to print a puzzle cleanlyUse a seed, theme, direction setting and generator version to reproduce a word search or Sudoku and keep its solution matched.
Read the guide : Reproduce a puzzle with its seedUnderstand straight-line word-search directions, overlapping words and the answer markings used in Printable Puzzle Kit printable puzzles.
Read the guide : Word-search rules and finding tipsExplore a topic
Understand the deduction before filling the square.
View all sudoku techniquesPrintable Puzzle Kit grades Sudoku by a complete human-technique solve: naked singles, hidden singles, locked candidates and naked pairs—not clue count.
Read the guide : How our Sudoku difficulty levels workLearn the three rules of 9×9 Sudoku, find a first candidate and understand why unique solutions and difficulty are different checks.
Read the guide : Sudoku rules and a practical first moveCompare standard Sudoku with variants adding constraints or connecting grids. Read each example's rules: a standard solver cannot verify every variant.
Explore this topicCreated by Rob for people who appreciate a useful explanation and something practical to try.