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| Filter | Status | Condition | Details |
|---|---|---|---|
| HTTP status | PASS | download_http_code = 200 | HTTP 200 |
| Age cutoff | PASS | download_stamp > now() - 6 MONTH | 0.6 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 |
| Property | Value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| URL | https://leetcode.com/problems/sudoku-solver/ | |||||||||
| Last Crawled | 2026-05-18 06:25:15 (16 days ago) | |||||||||
| First Indexed | 2015-03-09 13:09:44 (11 years ago) | |||||||||
| HTTP Status Code | 200 | |||||||||
| Content | ||||||||||
| Meta Title | Sudoku Solver - LeetCode | |||||||||
| Meta Description | Can you solve this real interview question? Sudoku Solver - Write a program to solve a Sudoku puzzle by filling the empty cells. A sudoku solution must satisfy all of the following rules: 1. Each of the digits 1-9 must occur exactly once in each row. 2. Each of the digits 1-9 must occur exactly once in each column. 3. Each of the digits 1-9 must occur exactly once in each of the 9 3x3 sub-boxes of the grid. The '.' character indicates empty cells. Example 1: [https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Sudoku-by-L2G-20050714.svg/250px-Sudoku-by-L2G-20050714.svg.png] Input: board = [["5","3",".",".","7",".",".",".","."],["6",".",".","1","9","5",".",".","."],[".","9","8",".",".",".",".","6","."],["8",".",".",".","6",".",".",".","3"],["4",".",".","8",".","3",".",".","1"],["7",".",".",".","2",".",".",".","6"],[".","6",".",".",".",".","2","8","."],[".",".",".","4","1","9",".",".","5"],[".",".",".",".","8",".",".","7","9"]] Output: [["5","3","4","6","7","8","9","1","2"],["6","7","2","1","9","5","3","4","8"],["1","9","8","3","4","2","5","6","7"],["8","5","9","7","6","1","4","2","3"],["4","2","6","8","5","3","7","9","1"],["7","1","3","9","2","4","8","5","6"],["9","6","1","5","3","7","2","8","4"],["2","8","7","4","1","9","6","3","5"],["3","4","5","2","8","6","1","7","9"]] Explanation: The input board is shown above and the only valid solution is shown below: [https://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Sudoku-by-L2G-20050714_solution.svg/250px-Sudoku-by-L2G-20050714_solution.svg.png] Constraints: * board.length == 9 * board[i].length == 9 * board[i][j] is a digit or '.'. * It is guaranteed that the input board has only one solution. | |||||||||
| Meta Canonical | null | |||||||||
| Boilerpipe Text | heavy column, fetched on demand | |||||||||
| Markdown | heavy column, fetched on demand | |||||||||
| Readable Markdown | heavy column, fetched on demand | |||||||||
| ML Classification | ||||||||||
| ML Categories |
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| ML Page Types |
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| ML Intent Types |
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| Content Metadata | ||||||||||
| Language | en | |||||||||
| Author | null | |||||||||
| Publish Time | not set | |||||||||
| Original Publish Time | 2015-03-09 13:09:44 (11 years ago) | |||||||||
| Republished | No | |||||||||
| Word Count (Total) | 310 | |||||||||
| Word Count (Content) | 121 | |||||||||
| Links | ||||||||||
| External Links | 0 | |||||||||
| Internal Links | 20 | |||||||||
| Technical SEO | ||||||||||
| Meta Nofollow | No | |||||||||
| Meta Noarchive | No | |||||||||
| JS Rendered | Yes | |||||||||
| Redirect Target | null | |||||||||
| Performance | ||||||||||
| Download Time (ms) | 586 | |||||||||
| TTFB (ms) | 567 | |||||||||
| Download Size (bytes) | 61,232 | |||||||||
| Location | ||||||||||
| Host ID | 99 (laksa099) | |||||||||
| Partition ID | 19 | |||||||||
| Root Hash | 17128001481954483899 | |||||||||
| Unparsed URL | com,leetcode!/problems/sudoku-solver/ s443 | |||||||||