--- title: "Daily logic games: 8 free online puzzles · SIWA" description: "Sudoku, Takuzu, nonogram, Slitherlink, Mastermind: eight free logic games with a new grid every day. In your browser, no sign-up." canonical_url: "https://dev.siwa.io/en/guides/jeux-de-logique-quotidiens" last_updated: 2026-10-27 locale: en meta: "og:description": "Sudoku, Takuzu, nonogram, Slitherlink, Mastermind: eight free logic games with a new grid every day. In your browser, no sign-up." "og:image": "https://dev.siwa.io/og/en/sudolito.jpg?v=18cc6b95" "og:image:alt": "Sudolito · A 6×6 mini-sudoko, just as clever" "og:image:height": "630" "og:image:type": image/jpeg "og:image:width": "1200" "og:title": "Daily logic games: 8 free online puzzles" "twitter:image": "https://dev.siwa.io/og/en/sudolito.jpg?v=18cc6b95" "twitter:image:alt": "Sudolito · A 6×6 mini-sudoko, just as clever" --- > Index of every page on this site: [llms.txt](https://dev.siwa.io/llms.txt) Picks # Daily logic games: 8 free online puzzles Daily logic games bring a new puzzle every day, solved by reasoning alone, no special knowledge needed. SIWA has eight of them, all free: from classics like sudoku to deduction teasers like Mastermind, from quick to tough. Updated October 27, 2026 [Play Sudolito](https://play.dev.siwa.io/game/sudolito) ## Two families of puzzles Grid puzzles such as sudoku, Binero, Pixelo or Bouclo are solved by deduction: each filled cell follows from the previous ones. Code games such as Decrypto, Mindo or Ondulo call for another kind of logic: choosing the try that tells you the most. ## Where to start? Sudolito, a 6×6 sudoku, is the ideal way in: sudoku rules on a shorter grid. Then come Binero and Pixelo, followed by Sudoko's 9×9 sudoku, Bouclo and Ondulo for longer challenges. ## A break of a few minutes Allow from two minutes for a Decrypto code to a dozen for a hard 9×9 sudoku. Grids change at midnight and play on a phone or a computer. ## 8 daily logic puzzles 1. [123454362151234](https://dev.siwa.io/en/games/sudolito) ### 1 [Sudolito](https://dev.siwa.io/en/games/sudolito) A 6×6 mini sudoku with 2×3 regions: sudoku rules, short version. [Play Sudolito](https://play.dev.siwa.io/game/sudolito) [See the game page](https://dev.siwa.io/en/games/sudolito) 2. [712564893163572](https://dev.siwa.io/en/games/sudoko) ### 2 [Sudoko](https://dev.siwa.io/en/games/sudoko) The classic 9×9 sudoku: each digit from 1 to 9 once per row, column and region. [Play Sudoko](https://play.dev.siwa.io/game/sudoko) [See the game page](https://dev.siwa.io/en/games/sudoko) 3. ### 3 [Binero](https://dev.siwa.io/en/games/binero) A Takuzu, also called Binairo: two symbols, never three alike in a row, as many of each per row and column. [Play Binero](https://play.dev.siwa.io/game/binero) [See the game page](https://dev.siwa.io/en/games/binero) 4. ### 4 [Pixelo](https://dev.siwa.io/en/games/pixelo) A nonogram, or Picross: the number clues on each row and column reveal a pixel-art picture. [Play Pixelo](https://play.dev.siwa.io/game/pixelo) [See the game page](https://dev.siwa.io/en/games/pixelo) 5. ### 5 [Bouclo](https://dev.siwa.io/en/games/bouclo) A Slitherlink: draw a single closed loop that respects the numbers in the cells. [Play Bouclo](https://play.dev.siwa.io/game/bouclo) [See the game page](https://dev.siwa.io/en/games/bouclo) 6. [1122](https://dev.siwa.io/en/games/ondulo) ### 6 [Ondulo](https://dev.siwa.io/en/games/ondulo) Four modules hidden in an 8×8 field, to locate by sending waves in from the edges. [Play Ondulo](https://play.dev.siwa.io/game/ondulo) [See the game page](https://dev.siwa.io/en/games/ondulo) 7. [447247291](https://dev.siwa.io/en/games/decrypto) ### 7 [Decrypto](https://dev.siwa.io/en/games/decrypto) A 5-digit code in 6 tries, each digit marked right spot, wrong spot or absent. [Play Decrypto](https://play.dev.siwa.io/game/decrypto) [See the game page](https://dev.siwa.io/en/games/decrypto) 8. ### 8 [Mindo](https://dev.siwa.io/en/games/mindo) Mastermind: a code of 4 colours out of 6, in 10 tries at most. [Play Mindo](https://play.dev.siwa.io/game/mindo) [See the game page](https://dev.siwa.io/en/games/mindo) ## Frequently asked questions
Which logic game should beginners pick? Sudolito: a 6×6 sudoku, shorter and friendlier than the 9×9, with the same rules.
Do logic games require any knowledge? No. Everything you need is in the grid: only reasoning counts, whatever your language.
How long does a game take? From two minutes for Decrypto or Mindo to a dozen minutes for a hard 9×9 sudoku.
## Ready to play? Today's grid is waiting, free and without sign-up. [Play Sudolito](https://play.dev.siwa.io/game/sudolito) ## More guides [SSBB

Games like Sudoku

Love Sudoku? A daily 9×9 Sudoku and a 6×6 mini Sudoku, plus two logic puzzles in the same spirit. Free, in the browser, no sign-up needed.AlternativeRead the guide](https://dev.siwa.io/en/guides/jeux-comme-sudoku) [BPSB

Games like Takuzu

Love Takuzu, Binairo or LinkedIn's Tango? Binero follows Takuzu's three rules on a free daily grid. Three more grid puzzles round out the selection.AlternativeRead the guide](https://dev.siwa.io/en/guides/jeux-comme-takuzu) [S

How to play Sudolito

The rules of Sudolito, SIWA's daily 6×6 sudoku: digits 1 to 6, 2×3 regions, notes, joker and scoring. With a sample region solved step by step.How to playRead the guide](https://dev.siwa.io/en/guides/comment-jouer-a-sudolito) [Play Sudolito](https://play.dev.siwa.io/game/sudolito) ```json {"@context":"https://schema.org","@graph":[{"@id":"https://dev.siwa.io/#identity","@type":"Organization","email":"hello@siwa.io","name":"SIWA","url":"https://dev.siwa.io/","logo":{"@id":"https://dev.siwa.io/#logo"}},{"@id":"https://dev.siwa.io/#website","@type":"WebSite","inLanguage":"en-US","name":"SIWA","url":"https://dev.siwa.io/","publisher":{"@id":"https://dev.siwa.io/#identity"}},{"@id":"https://dev.siwa.io/en/guides/jeux-de-logique-quotidiens#webpage","dateModified":"2026-10-27","datePublished":"2026-10-27","description":"Sudoku, Takuzu, nonogram, Slitherlink, Mastermind: eight free logic games with a new grid every day. 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