🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 108 (from laksa189)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa108.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.createclassicsudoku.com/How_do_I_solve_a_sudoku_puzzle.jsp\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.createclassicsudoku.com/How_do_I_solve_a_sudoku_puzzle.jsp\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.createclassicsudoku.com\/How_do_I_solve_a_sudoku_puzzle.jsp","crawl_time":1775501899,"first_indexed_time":1517678443,"http_code":200,"src_unparsed":"com,createclassicsudoku!www,\/How_do_I_solve_a_sudoku_puzzle.jsp s443","src_root_hash":"7300535793502915508","history_drop_reason":null,"meta_title":"How Do I Solve a Sudoku Puzzle?","meta_descriptions":["How do I solve a Sudoku Puzzle"],"attrs_boilerpipe_text":"Sudoku\r\n\t\t\t\t\t\tis a number game in which missing numbers are to be filled\r\n\t\t\t\t\t\tinto a 9 by 9 grid of squares which are subdivided into 3\r\n\t\t\t\t\t\tby 3 boxes so that every row, every column, and every box\r\n\t\t\t\t\t\tcontains the numbers 1 through 9.\nBelow is a Sudoku puzzle of medium difficulty level taking\r\n\t\t\t\t\t\tfrom\nwww.createclassicsudoku.com\n.\nYou are given a Sudoku puzzle, some of the squares are\r\n\t\t\t\t\t\tpre-filled with a number, and your task is to fill the\r\n\t\t\t\t\t\tremaining empty squares so that each row\/column\/box has\r\n\t\t\t\t\t\tnine different numbers 1 through 9.\nHow do I solve a Sudoku puzzle like this? Because this is a\r\n\t\t\t\t\t\tlogical game, a lot of methods have been summarized to\r\n\t\t\t\t\t\tsolve Sudoku puzzles, and more to come (you may be the one\r\n\t\t\t\t\t\twho will invent new solving methods). The most famous\r\n\t\t\t\t\t\tmethods are OneChoice, Elimination, Interaction, Subset,\r\n\t\t\t\t\t\tHidden Twins, X-Wing, XY-wing, XYZ-Wing, and guessing.\nHere are examples of using\nOneChoice\n.\nHere are examples of using\nElimination\n.\nHere are examples of using\nSubset\n.\nHere are examples of using\nHidden\r\n\t\t\t\t\t\t\tPair\/Hidden Twins\n.\nHere are examples of using\nInteraction\n.\nHere are examples of using\nX-Wing\n.\nHere are examples of using\nXY-Wing\n.\nHere are examples of using\nGuessing\n.\nOne book I like the most is\nMensa\r\n\t\t\t\t\t\t\tGuide to Solving Sudoku by Peter Gordon\n. Almost all\r\n\t\t\t\t\t\tmethods are summarized and plenty of exercises that will\r\n\t\t\t\t\t\tuse certain methods are given.","attrs_markdown":"# Chat\nHello, my name is Alex and I am your  assistant.  \n What is your name?\n\n**Message**\n\nSend\n\nClose\n\nChat\n\n× Network Error. Please Try Again\\!\n\n##### Hint\n×\n\nClose\n\n##### Detailed Hint\n×\n\nClose\n\n##### Sudoku Creation Steps\n×\n\nClose\n\n##### Are you sure you want to clear the whole sudoku grid?\n×\n\nCancel\n\nYes, Clear the Grid\n\n##### Share This Sudoku\n×\n\nShare the link\n\nClose\n\n##### Share This Sudoku\n×\n\nShare the link\n\nClose\n\n##### Contact Us\n×\n\nCancel\n\nSubmit\n\n##### Please Subscribe to continue to use this service!!\\!\n×\n\nYou have used our services a lot. [Please subscribe to have unlimited services.](https:\/\/www.createclassicsudoku.com\/subscription.jsp)\n\nSubscribe\n\nClose\n\n##### Please Renew Your Subscription to continue to use this service!!\\!\n×\n\nYour subscription has expired. [Please renew your subscription to have unlimited services.](https:\/\/www.createclassicsudoku.com\/subscription.jsp)\n\nRenew Subscription\n\nClose\n\n##### Please Log In (or Sign Up) to use this service!!\\!\n×\n\nClose\n\n##### Creation\/Solving Steps is NOT available to public\\!\n×\n\nClose\n\n##### Oops... Something is wrong. Please Re-Log In (or Sign Up) to use this service.\n×\n\nClose\n\n##### Please Log In (or Sign Up) first before subscribing Sudoku services\\!\n×\n\nClose\n\n##### Log In\n×\n\nClose\n\nSubmit\n\n##### Forgot Password?\n×\n\nClose\n\nSubmit\n\n##### Change Password\n×\n\nClose\n\nSubmit\n\n##### Sign Up Form\n×\n\nClose\n\nSubmit\n\n##### Change Password Form\n×\n\nClose\n\nSubmit\n\n##### DELETE Saved Sudokus\n×\n\nClose\n\n##### In Development\n×\n\nClose\n\n[Sudoku](\"Fill numbers 1 to 9 to every empty square so that each row,\n\t\t\tcolumn, or box contains numbers 1 to 9.\")\n\n- [MakeSudoku](https:\/\/www.createclassicsudoku.com\/How_do_I_solve_a_sudoku_puzzle.jsp)\n  [Make Sudoku Your Way](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku9by9.jsp) [Make Sudoku Our Way](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku9by9FillRemove.jsp) [Make 16x16 Sudoku](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku16by16.jsp) [Make Simple Sudoku](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku4by4.jsp) [Make a Sudoku Book](https:\/\/www.createclassicsudoku.com\/MakeASudokuBook.jsp)\n- [SolveSudoku](https:\/\/www.createclassicsudoku.com\/SolveYourOwnSudoku9by9.jsp)\n- [PlaySudoku](https:\/\/www.createclassicsudoku.com\/index.jsp)\n- [SudokuPosts](https:\/\/www.createclassicsudoku.com\/posts.jsp)\n- [Resources](https:\/\/www.createclassicsudoku.com\/How_do_I_solve_a_sudoku_puzzle.jsp)\n  [Customize and Download Empty Grids](https:\/\/www.createclassicsudoku.com\/blankgrid.jsp) [Solving Sudoku Explained](https:\/\/www.createclassicsudoku.com\/SolvingSudokuMethods.jsp) [Book @ Amazon](https:\/\/www.amazon.com\/dp\/0996204202) [Book (partial) in HTML pages](https:\/\/www.createclassicsudoku.com\/FreeEbookCreateSudoku-YZ-Shortver\/index.html) [Help Center](https:\/\/www.createclassicsudoku.com\/onepage\/helpcenter.jsp) [FAQ](https:\/\/www.createclassicsudoku.com\/FAQ.jsp) [About Us](https:\/\/www.createclassicsudoku.com\/about-us.jsp)\n\n- [Subscribe](https:\/\/www.createclassicsudoku.com\/subscription.jsp \"Please log in before subscribing\")\n- [Sign Up]()\n- [Login]()\n- [User](https:\/\/www.createclassicsudoku.com\/How_do_I_solve_a_sudoku_puzzle.jsp)\n  [Change Password]() [Manage Saved Sudokus]() [Manage Posted Sudokus]() [Delete My Account](https:\/\/www.createclassicsudoku.com\/deleteMyAccount.jsp)\n- [Logout]()\n\n# How Do I Solve a Sudoku Puzzle?\nSudoku is a number game in which missing numbers are to be filled into a 9 by 9 grid of squares which are subdivided into 3 by 3 boxes so that every row, every column, and every box contains the numbers 1 through 9.\n\nBelow is a Sudoku puzzle of medium difficulty level taking from [www.createclassicsudoku.com](https:\/\/www.createclassicsudoku.com\/).\n\n[![Medium Difficulty Level Sudoku Puzzle](https:\/\/www.createclassicsudoku.com\/images\/2018-01-23_MEDIUM_SUDOKU.gif)](https:\/\/www.createclassicsudoku.com\/index.jsp?date=01232018&level=medium)\n\nYou are given a Sudoku puzzle, some of the squares are pre-filled with a number, and your task is to fill the remaining empty squares so that each row\/column\/box has nine different numbers 1 through 9.\n\nHow do I solve a Sudoku puzzle like this? Because this is a logical game, a lot of methods have been summarized to solve Sudoku puzzles, and more to come (you may be the one who will invent new solving methods). The most famous methods are OneChoice, Elimination, Interaction, Subset, Hidden Twins, X-Wing, XY-wing, XYZ-Wing, and guessing.\n\nHere are examples of using [OneChoice](https:\/\/www.createclassicsudoku.com\/solvesudoku_onechoice.jsp).\n\nHere are examples of using [Elimination](https:\/\/www.createclassicsudoku.com\/solvesudoku_elimination.jsp).\n\nHere are examples of using [Subset](https:\/\/www.createclassicsudoku.com\/solvesudoku_subset2.jsp).\n\nHere are examples of using [Hidden Pair\/Hidden Twins](https:\/\/www.createclassicsudoku.com\/solvesudoku_subsetposition2.jsp).\n\nHere are examples of using [Interaction](https:\/\/www.createclassicsudoku.com\/solvesudoku_interaction.jsp).\n\nHere are examples of using [X-Wing](https:\/\/www.createclassicsudoku.com\/solvesudoku_xwing.jsp).\n\nHere are examples of using [XY-Wing](https:\/\/www.createclassicsudoku.com\/solvesudoku_xywing.jsp).\n\nHere are examples of using [Guessing](https:\/\/www.createclassicsudoku.com\/solvesudoku_guessing.jsp).\n\nOne book I like the most is [Mensa Guide to Solving Sudoku by Peter Gordon](https:\/\/www.amazon.com\/dp\/1402740115). Almost all methods are summarized and plenty of exercises that will use certain methods are given.\n\n##### [FAQ - How Can I Design A Sudoku Puzzle Within Minutes](https:\/\/www.createclassicsudoku.com\/How_Can_I_Design_a_Sudoku_Puzzle_within_minutes.jsp)\nLast updated on July 9, 2020\n\n##### [FAQ - How can I Solve a Sudoku Puzzle Fast?](https:\/\/www.createclassicsudoku.com\/How_can_I_solve_a_sudoku_puzzle_fast.jsp)\nLast updated on July 9, 2020.\n\n##### [FAQ - How Do I Make Millions of Sudoku Puzzles?](https:\/\/www.createclassicsudoku.com\/How_Do_I_Make_Millions_of_Sudoku_Puzzles.jsp)\nLast updated on July 9, 2020.\n\n##### [FAQ - How Do I Measure Sudoku Puzzle Difficulty Level](https:\/\/www.createclassicsudoku.com\/How_Do_I_Measure_Sudoku_Puzzle_Difficulty_Level.jsp)\nLast updated on July 9, 2020.\n\n##### [FAQ - How Do I Solve a Sudoku Puzzle](https:\/\/www.createclassicsudoku.com\/How_do_I_solve_a_sudoku_puzzle.jsp)\nLast updated on July 9, 2020.\n\n##### [FAQ - What are Interesting Facts about Sudoku?](https:\/\/www.createclassicsudoku.com\/What_are_interesting_facts_about_Sudoku.jsp)\nLast updated on July 9, 2020.\n\n##### [FAQ - Who wrote this website? And what is this website about?](https:\/\/www.createclassicsudoku.com\/about-us.jsp)\nLast updated on July 9, 2020.\n\n##### Resources\n- [Amazon Book: Create Classic Sudoku](https:\/\/www.amazon.com\/dp\/0996204202)\n- [Partial Book in HTML format](https:\/\/www.createclassicsudoku.com\/FreeEbookCreateSudoku-YZ-Shortver\/index.html)\n- [Write A Sudoku Post](https:\/\/www.createclassicsudoku.com\/posts.jsp)\n- [Solving Sudoku Methods](https:\/\/www.createclassicsudoku.com\/SolvingSudokuMethods.jsp)\n- [Privacy Policy](https:\/\/www.createclassicsudoku.com\/privacypolicy.html)\n- [Contact Us]()\n***\n##### Any Sudoku\n- [Make 16×16 Sudoku](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku16by16.jsp)\n- [Make 4×4 Sudoku](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku4by4.jsp)\n- [Make 3×3 Sudoku](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku4by4.jsp)\n- [Make 2×2 Sudoku](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku4by4.jsp)\n- [Download Empty Sudokus](https:\/\/www.createclassicsudoku.com\/blankgrid.jsp)\n\n##### 9×9 Sudoku\n- [Play Sudoku](https:\/\/www.createclassicsudoku.com\/index.jsp)\n- [Solve Sudoku](https:\/\/www.createclassicsudoku.com\/SolveYourOwnSudoku9by9.jsp)\n- [Make Sudoku Your Way](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku9by9.jsp)\n- [Make Sudoku Our Way](https:\/\/www.createclassicsudoku.com\/MakeYourOwnSudoku9by9FillRemove.jsp)\n- [Make A Sudoku Book](https:\/\/www.createclassicsudoku.com\/MakeASudokuBook.jsp)\n\n© Copyright:  [www.createclassicsudoku.com](https:\/\/www.createclassicsudoku.com\/)","attrs_readable_markdown":"Sudoku is a number game in which missing numbers are to be filled into a 9 by 9 grid of squares which are subdivided into 3 by 3 boxes so that every row, every column, and every box contains the numbers 1 through 9.\n\nBelow is a Sudoku puzzle of medium difficulty level taking from [www.createclassicsudoku.com](https:\/\/www.createclassicsudoku.com\/).\n\n[![Medium Difficulty Level Sudoku Puzzle](https:\/\/www.createclassicsudoku.com\/images\/2018-01-23_MEDIUM_SUDOKU.gif)](https:\/\/www.createclassicsudoku.com\/index.jsp?date=01232018&level=medium)\n\nYou are given a Sudoku puzzle, some of the squares are pre-filled with a number, and your task is to fill the remaining empty squares so that each row\/column\/box has nine different numbers 1 through 9.\n\nHow do I solve a Sudoku puzzle like this? Because this is a logical game, a lot of methods have been summarized to solve Sudoku puzzles, and more to come (you may be the one who will invent new solving methods). The most famous methods are OneChoice, Elimination, Interaction, Subset, Hidden Twins, X-Wing, XY-wing, XYZ-Wing, and guessing.\n\nHere are examples of using [OneChoice](https:\/\/www.createclassicsudoku.com\/solvesudoku_onechoice.jsp).\n\nHere are examples of using [Elimination](https:\/\/www.createclassicsudoku.com\/solvesudoku_elimination.jsp).\n\nHere are examples of using [Subset](https:\/\/www.createclassicsudoku.com\/solvesudoku_subset2.jsp).\n\nHere are examples of using [Hidden Pair\/Hidden Twins](https:\/\/www.createclassicsudoku.com\/solvesudoku_subsetposition2.jsp).\n\nHere are examples of using [Interaction](https:\/\/www.createclassicsudoku.com\/solvesudoku_interaction.jsp).\n\nHere are examples of using [X-Wing](https:\/\/www.createclassicsudoku.com\/solvesudoku_xwing.jsp).\n\nHere are examples of using [XY-Wing](https:\/\/www.createclassicsudoku.com\/solvesudoku_xywing.jsp).\n\nHere are examples of using [Guessing](https:\/\/www.createclassicsudoku.com\/solvesudoku_guessing.jsp).\n\nOne book I like the most is [Mensa Guide to Solving Sudoku by Peter Gordon](https:\/\/www.amazon.com\/dp\/1402740115). Almost all methods are summarized and plenty of exercises that will use certain methods are given.","meta_canonical":null}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

2 days ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.1 months ago
History drop	PASS	`isNull(history_drop_reason)`	No drop reason
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	PASS	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not set

Page Details

Property	Value
URL	https://www.createclassicsudoku.com/How_do_I_solve_a_sudoku_puzzle.jsp
Last Crawled	2026-04-06 18:58:19 (2 days ago)
First Indexed	2018-02-03 17:20:43 (8 years ago)
HTTP Status Code	200
Meta Title	How Do I Solve a Sudoku Puzzle?
Meta Description	How do I solve a Sudoku Puzzle
Meta Canonical	null
Boilerpipe Text	Sudoku is a number game in which missing numbers are to be filled into a 9 by 9 grid of squares which are subdivided into 3 by 3 boxes so that every row, every column, and every box contains the numbers 1 through 9. Below is a Sudoku puzzle of medium difficulty level taking from www.createclassicsudoku.com . You are given a Sudoku puzzle, some of the squares are pre-filled with a number, and your task is to fill the remaining empty squares so that each row/column/box has nine different numbers 1 through 9. How do I solve a Sudoku puzzle like this? Because this is a logical game, a lot of methods have been summarized to solve Sudoku puzzles, and more to come (you may be the one who will invent new solving methods). The most famous methods are OneChoice, Elimination, Interaction, Subset, Hidden Twins, X-Wing, XY-wing, XYZ-Wing, and guessing. Here are examples of using OneChoice . Here are examples of using Elimination . Here are examples of using Subset . Here are examples of using Hidden Pair/Hidden Twins . Here are examples of using Interaction . Here are examples of using X-Wing . Here are examples of using XY-Wing . Here are examples of using Guessing . One book I like the most is Mensa Guide to Solving Sudoku by Peter Gordon . Almost all methods are summarized and plenty of exercises that will use certain methods are given.
Markdown	# Chat Hello, my name is Alex and I am your assistant. What is your name? Message Send Close Chat × Network Error. Please Try Again\! ##### Hint × Close ##### Detailed Hint × Close ##### Sudoku Creation Steps × Close ##### Are you sure you want to clear the whole sudoku grid? × Cancel Yes, Clear the Grid ##### Share This Sudoku × Share the link Close ##### Share This Sudoku × Share the link Close ##### Contact Us × Cancel Submit ##### Please Subscribe to continue to use this service!!\! × You have used our services a lot. [Please subscribe to have unlimited services.](https://www.createclassicsudoku.com/subscription.jsp) Subscribe Close ##### Please Renew Your Subscription to continue to use this service!!\! × Your subscription has expired. [Please renew your subscription to have unlimited services.](https://www.createclassicsudoku.com/subscription.jsp) Renew Subscription Close ##### Please Log In (or Sign Up) to use this service!!\! × Close ##### Creation/Solving Steps is NOT available to public\! × Close ##### Oops... Something is wrong. Please Re-Log In (or Sign Up) to use this service. × Close ##### Please Log In (or Sign Up) first before subscribing Sudoku services\! × Close ##### Log In × Close Submit ##### Forgot Password? × Close Submit ##### Change Password × Close Submit ##### Sign Up Form × Close Submit ##### Change Password Form × Close Submit ##### DELETE Saved Sudokus × Close ##### In Development × Close [Sudoku]("Fill numbers 1 to 9 to every empty square so that each row, column, or box contains numbers 1 to 9.") - [MakeSudoku](https://www.createclassicsudoku.com/How_do_I_solve_a_sudoku_puzzle.jsp) [Make Sudoku Your Way](https://www.createclassicsudoku.com/MakeYourOwnSudoku9by9.jsp) [Make Sudoku Our Way](https://www.createclassicsudoku.com/MakeYourOwnSudoku9by9FillRemove.jsp) [Make 16x16 Sudoku](https://www.createclassicsudoku.com/MakeYourOwnSudoku16by16.jsp) [Make Simple Sudoku](https://www.createclassicsudoku.com/MakeYourOwnSudoku4by4.jsp) [Make a Sudoku Book](https://www.createclassicsudoku.com/MakeASudokuBook.jsp) - [SolveSudoku](https://www.createclassicsudoku.com/SolveYourOwnSudoku9by9.jsp) - [PlaySudoku](https://www.createclassicsudoku.com/index.jsp) - [SudokuPosts](https://www.createclassicsudoku.com/posts.jsp) - [Resources](https://www.createclassicsudoku.com/How_do_I_solve_a_sudoku_puzzle.jsp) [Customize and Download Empty Grids](https://www.createclassicsudoku.com/blankgrid.jsp) [Solving Sudoku Explained](https://www.createclassicsudoku.com/SolvingSudokuMethods.jsp) [Book @ Amazon](https://www.amazon.com/dp/0996204202) [Book (partial) in HTML pages](https://www.createclassicsudoku.com/FreeEbookCreateSudoku-YZ-Shortver/index.html) [Help Center](https://www.createclassicsudoku.com/onepage/helpcenter.jsp) [FAQ](https://www.createclassicsudoku.com/FAQ.jsp) [About Us](https://www.createclassicsudoku.com/about-us.jsp) - [Subscribe](https://www.createclassicsudoku.com/subscription.jsp "Please log in before subscribing") - [Sign Up]() - [Login]() - [User](https://www.createclassicsudoku.com/How_do_I_solve_a_sudoku_puzzle.jsp) [Change Password]() [Manage Saved Sudokus]() [Manage Posted Sudokus]() [Delete My Account](https://www.createclassicsudoku.com/deleteMyAccount.jsp) - [Logout]() # How Do I Solve a Sudoku Puzzle? Sudoku is a number game in which missing numbers are to be filled into a 9 by 9 grid of squares which are subdivided into 3 by 3 boxes so that every row, every column, and every box contains the numbers 1 through 9. Below is a Sudoku puzzle of medium difficulty level taking from [www.createclassicsudoku.com](https://www.createclassicsudoku.com/). [![Medium Difficulty Level Sudoku Puzzle](https://www.createclassicsudoku.com/images/2018-01-23_MEDIUM_SUDOKU.gif)](https://www.createclassicsudoku.com/index.jsp?date=01232018&level=medium) You are given a Sudoku puzzle, some of the squares are pre-filled with a number, and your task is to fill the remaining empty squares so that each row/column/box has nine different numbers 1 through 9. How do I solve a Sudoku puzzle like this? Because this is a logical game, a lot of methods have been summarized to solve Sudoku puzzles, and more to come (you may be the one who will invent new solving methods). The most famous methods are OneChoice, Elimination, Interaction, Subset, Hidden Twins, X-Wing, XY-wing, XYZ-Wing, and guessing. Here are examples of using [OneChoice](https://www.createclassicsudoku.com/solvesudoku_onechoice.jsp). Here are examples of using [Elimination](https://www.createclassicsudoku.com/solvesudoku_elimination.jsp). Here are examples of using [Subset](https://www.createclassicsudoku.com/solvesudoku_subset2.jsp). Here are examples of using [Hidden Pair/Hidden Twins](https://www.createclassicsudoku.com/solvesudoku_subsetposition2.jsp). Here are examples of using [Interaction](https://www.createclassicsudoku.com/solvesudoku_interaction.jsp). Here are examples of using [X-Wing](https://www.createclassicsudoku.com/solvesudoku_xwing.jsp). Here are examples of using [XY-Wing](https://www.createclassicsudoku.com/solvesudoku_xywing.jsp). Here are examples of using [Guessing](https://www.createclassicsudoku.com/solvesudoku_guessing.jsp). One book I like the most is [Mensa Guide to Solving Sudoku by Peter Gordon](https://www.amazon.com/dp/1402740115). Almost all methods are summarized and plenty of exercises that will use certain methods are given. ##### [FAQ - How Can I Design A Sudoku Puzzle Within Minutes](https://www.createclassicsudoku.com/How_Can_I_Design_a_Sudoku_Puzzle_within_minutes.jsp) Last updated on July 9, 2020 ##### [FAQ - How can I Solve a Sudoku Puzzle Fast?](https://www.createclassicsudoku.com/How_can_I_solve_a_sudoku_puzzle_fast.jsp) Last updated on July 9, 2020. ##### [FAQ - How Do I Make Millions of Sudoku Puzzles?](https://www.createclassicsudoku.com/How_Do_I_Make_Millions_of_Sudoku_Puzzles.jsp) Last updated on July 9, 2020. ##### [FAQ - How Do I Measure Sudoku Puzzle Difficulty Level](https://www.createclassicsudoku.com/How_Do_I_Measure_Sudoku_Puzzle_Difficulty_Level.jsp) Last updated on July 9, 2020. ##### [FAQ - How Do I Solve a Sudoku Puzzle](https://www.createclassicsudoku.com/How_do_I_solve_a_sudoku_puzzle.jsp) Last updated on July 9, 2020. ##### [FAQ - What are Interesting Facts about Sudoku?](https://www.createclassicsudoku.com/What_are_interesting_facts_about_Sudoku.jsp) Last updated on July 9, 2020. ##### [FAQ - Who wrote this website? And what is this website about?](https://www.createclassicsudoku.com/about-us.jsp) Last updated on July 9, 2020. ##### Resources - [Amazon Book: Create Classic Sudoku](https://www.amazon.com/dp/0996204202) - [Partial Book in HTML format](https://www.createclassicsudoku.com/FreeEbookCreateSudoku-YZ-Shortver/index.html) - [Write A Sudoku Post](https://www.createclassicsudoku.com/posts.jsp) - [Solving Sudoku Methods](https://www.createclassicsudoku.com/SolvingSudokuMethods.jsp) - [Privacy Policy](https://www.createclassicsudoku.com/privacypolicy.html) - [Contact Us]() *** ##### Any Sudoku - [Make 16×16 Sudoku](https://www.createclassicsudoku.com/MakeYourOwnSudoku16by16.jsp) - [Make 4×4 Sudoku](https://www.createclassicsudoku.com/MakeYourOwnSudoku4by4.jsp) - [Make 3×3 Sudoku](https://www.createclassicsudoku.com/MakeYourOwnSudoku4by4.jsp) - [Make 2×2 Sudoku](https://www.createclassicsudoku.com/MakeYourOwnSudoku4by4.jsp) - [Download Empty Sudokus](https://www.createclassicsudoku.com/blankgrid.jsp) ##### 9×9 Sudoku - [Play Sudoku](https://www.createclassicsudoku.com/index.jsp) - [Solve Sudoku](https://www.createclassicsudoku.com/SolveYourOwnSudoku9by9.jsp) - [Make Sudoku Your Way](https://www.createclassicsudoku.com/MakeYourOwnSudoku9by9.jsp) - [Make Sudoku Our Way](https://www.createclassicsudoku.com/MakeYourOwnSudoku9by9FillRemove.jsp) - [Make A Sudoku Book](https://www.createclassicsudoku.com/MakeASudokuBook.jsp) © Copyright: [www.createclassicsudoku.com](https://www.createclassicsudoku.com/)
Readable Markdown	Sudoku is a number game in which missing numbers are to be filled into a 9 by 9 grid of squares which are subdivided into 3 by 3 boxes so that every row, every column, and every box contains the numbers 1 through 9. Below is a Sudoku puzzle of medium difficulty level taking from [www.createclassicsudoku.com](https://www.createclassicsudoku.com/). [![Medium Difficulty Level Sudoku Puzzle](https://www.createclassicsudoku.com/images/2018-01-23_MEDIUM_SUDOKU.gif)](https://www.createclassicsudoku.com/index.jsp?date=01232018&level=medium) You are given a Sudoku puzzle, some of the squares are pre-filled with a number, and your task is to fill the remaining empty squares so that each row/column/box has nine different numbers 1 through 9. How do I solve a Sudoku puzzle like this? Because this is a logical game, a lot of methods have been summarized to solve Sudoku puzzles, and more to come (you may be the one who will invent new solving methods). The most famous methods are OneChoice, Elimination, Interaction, Subset, Hidden Twins, X-Wing, XY-wing, XYZ-Wing, and guessing. Here are examples of using [OneChoice](https://www.createclassicsudoku.com/solvesudoku_onechoice.jsp). Here are examples of using [Elimination](https://www.createclassicsudoku.com/solvesudoku_elimination.jsp). Here are examples of using [Subset](https://www.createclassicsudoku.com/solvesudoku_subset2.jsp). Here are examples of using [Hidden Pair/Hidden Twins](https://www.createclassicsudoku.com/solvesudoku_subsetposition2.jsp). Here are examples of using [Interaction](https://www.createclassicsudoku.com/solvesudoku_interaction.jsp). Here are examples of using [X-Wing](https://www.createclassicsudoku.com/solvesudoku_xwing.jsp). Here are examples of using [XY-Wing](https://www.createclassicsudoku.com/solvesudoku_xywing.jsp). Here are examples of using [Guessing](https://www.createclassicsudoku.com/solvesudoku_guessing.jsp). One book I like the most is [Mensa Guide to Solving Sudoku by Peter Gordon](https://www.amazon.com/dp/1402740115). Almost all methods are summarized and plenty of exercises that will use certain methods are given.
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