The Sudoku With Only 16 Given Digits?!

** TODAY'S PUZZLE ** One of the most extraordinarily named constructors makes a debut on the channel tonight in the form of sisaloofafump and their puzzle Three Pounds, Fifteen Shillings. This is an absolutely lovely colouring exercise with some original and cool logic. Enjoy! Play the puzzle at the links below: https://sudokupad.app/5w6o2pvrh3 Rules Normal sudoku rules apply. Sort the digits 1-9 into three unique sets of three digits. Each set must sum to 15. Every 2x2 arrangement of cells in the grid must contain at least one number from each set. Digits along an arrow must sum to the number in the attached circle. ** BRAND NEW COMPETITION ON PATREON ** On 1 November we released a brand new Sudoku Hunt competition themed on the books of Charles Dickens on Patreon. There's 20 puzzles to solve by 20 November to win the chance to come onto the channel and solve a puzzle with us! Simon has also completed a series of videos (7 hours!) attempting a very difficult cryptic crossword called Periodic Location by Nebuchadnezzar.   / crackingthecryptic   ▶ LAST NIGHT'S STREAM: LORELEI AND THE LASER EYES ◀ You can (re)watch tonight's stream of Lorelei and the Laser Eyes here: https://youtube.com/live/MgskZaj-fkU ▶ ZETAMATH'S WORM: OUR BRAND NEW APP ◀ We've released a brand new collection of sudoku puzzles by Blobz. The worm features 12 connected sudokus and is a great way to enjoy more creations from this popular constructor: Steam: https://store.steampowered.com/app/47... AppStore https://apps.apple.com/us/app/crackin... Android: https://play.google.com/store/apps/de... All our apps can be found at our website with links to all outlets: https://www.crackingthecryptic.com/apps ▶ NEW MERCHANDISE INCLUDING RAT RUN GOODIES ◀ https://cracking-the-cryptric-shop.fo... ▶ SIMON & MARK ATTEMPT BLUE PRINCE: THE SUDOKU ◀ This new epic (and epically long) video is now on Patreon (as well as our monthly sudoku hunt competition by Sandra & Nala). Check it all out here:   / crackingthecryptic   ▶ SVEN’S SUDOKU PAD ◀ Input classic sudoku puzzles into our software. With 12 free puzzles: iOS: https://apps.apple.com/us/app/svens-s... Steam: https://store.steampowered.com/app/17... Android: https://play.google.com/store/apps/de... Amazon: Search for “SudokuPad” ▶ CTC FAN DISCORD SERVER◀   / discord   ▶ OUR VIDEO CATALOGUE – CATEGORISED WITH LINKS◀ https://tinyurl.com/CTCCatalogue ▶SEND US PUZZLES TO SOLVE/CONTACT US◀ crackingthecryptic@gmail.com Snailmail: Mark Goodliffe, Box 102, 56 Gloucester Road, London SW7 4UB ▶FOLLOW US◀ Twitter: #crypticcracking @crypticcracking Instagram @crackingthecryptic ▶Credits◀ Music: Lucy Audrin (Piano): Mozart's Sonata no 16; and Mark’s outro music by Riffclown. SOFTWARE: Thanks to Sam Cappleman-Lynes and Sven Neumann Logo: Melvyn Mainini Opening Credits: Burak Mescioğlu ▶ Contents Of This Video ◀ 0:00 Intro music and puzzle introduction 1:39 No Stream 1:59 New Kickstarter for Xmas!! 3:12 Happy Birthdays 3:44 Rules 6:01 Start of Solve: Let's Get Cracking #sudoku #puzzle #maths