Sandwich Sudoku in IOS

by Cracking the Cryptic

Walkthrough, Guilds, Tips on this special game

Our Site Score

89/100

Sandwich Sudoku is a brilliant evolution of the classic Sudoku format. For those who find standard Sudoku a bit repetitive, the 'Sandwich' rules add a whole new dimension of logic. The numbers outside the grid tell you the sum of the digits sandwiched between the 1 and the 9 in that row or column. It sounds complicated, but it’s incredibly intuitive once you start.

This app is polished and user-friendly, developed by the minds behind the popular 'Cracking the Cryptic' channel. It’s a pure logic game that requires deduction rather than guessing. If you love brain teasers that truly challenge your number sense and logical reasoning, this is a must-download. It’s Sudoku for the next generation of puzzle lovers.

Reviewed on: Thu Feb 26 2026
Dinsun Avatar

Dinsun Review

Now this is more like it. I have little patience for mindless apps, but Sandwich Sudoku offers a legitimate mental workout. The variant rules are brilliant, forcing you to rethink everything you know about standard Sudoku. The interface is clean and professional—no flashy garbage, just the puzzle. It’s a bit pricey for a Sudoku app, but the quality of the hand-crafted levels is undeniable.

Overall Stats

Pros & Cons

  • Brilliant logic puzzles
  • No ads
  • Hand-crafted levels
  • High entry barrier
  • Plain presentation

Technical Report

Performance: Flawless performance; excellent pencil marking system.

Accessibility:

    Audience Fit

    Buy if: You love logic puzzles and find standard Sudoku too easy.

    Skip if: You want a casual experience or get frustrated by complex rules.

    Similar Games:
    • Killer Sudoku
    • Chess Sudoku

    Reviewer Context

    • Reviewer: Dinsun (40yo critical gamer)
    • Hardware: iPad Mini
    • Playtime: 12 hours
    • Status: Completed medium difficulty pack

    The Game

    Available on: iPhone, iPad, iPod

    Version 3Tue Sep 01 2020

    10 new puzzles, all 100 puzzles are out now!


    ***** AUGUST UPDATE *****

    10 new puzzles, all 100 puzzles are out now!

    -------------------------------------

    Presented by Cracking The Cryptic, YouTube's most popular Sudoku channel, here is the brand new "Sandwich Sudoku" game that has become an internet sensation!

    In Sandwich Sudoku, the puzzle is presented with extra numbers outside the grid next to each row and column. These numbers indicate the SUM of cells sandwiched between the 1 and the 9 in that row/column. The logic required to solve the puzzles will appeal to anyone who enjoys normal Sudoku and a bit of basic maths. Each puzzle here has been lovingly hand-crafted by Mark Goodliffe and Simon Anthony, the hosts of Cracking The Cryptic. They've even included their own hints on each puzzle to help if you get stuck. Mark and Simon have both represented the UK many times in the World Sudoku Championship.

    “I love it!”

    Alex Bellos, author of Alex's Adventures in Numberland

    Features:

    100 hand-crafted levels

    Many themes to choose from

    Hints written by Mark and Simon!


    Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.

    ***** AUGUST UPDATE *****

    10 new puzzles, all 100 puzzles are out now!

    -------------------------------------

    Presented by Cracking The Cryptic, YouTube's most popular Sudoku channel, here is the brand new "Sandwich Sudoku" game that has become an internet sensation!

    In Sandwich Sudoku, the puzzle is presented with extra numbers outside the grid next to each row and column. These numbers indicate the SUM of cells sandwiched between the 1 and the 9 in that row/column. The logic required to solve the puzzles will appeal to anyone who enjoys normal Sudoku and a bit of basic maths. Each puzzle here has been lovingly hand-crafted by Mark Goodliffe and Simon Anthony, the hosts of Cracking The Cryptic. They've even included their own hints on each puzzle to help if you get stuck. Mark and Simon have both represented the UK many times in the World Sudoku Championship.

    “I love it!”

    Alex Bellos, author of Alex's Adventures in Numberland

    Features:

    100 hand-crafted levels

    Many themes to choose from

    Hints written by Mark and Simon!


    Ratings & Reviews

    4.9 out of 5 with 128 Counts
    Age Rating 4+

    Screenshots

    Sandwich Sudoku screenshot 1Sandwich Sudoku screenshot 2Sandwich Sudoku screenshot 3Sandwich Sudoku screenshot 4Sandwich Sudoku screenshot 5Sandwich Sudoku screenshot 6

    In Sandwich Sudoku, the grid is filled with the numbers 1-9, but there's a twist: numbers outside the grid indicate the sum of the digits 'sandwiched' between the 1 and the 9 in that row or column. Developed by logic experts, this game features hand-crafted puzzles that range from beginner-friendly to expertly difficult. No guessing required—just pure, satisfying deduction.

    Features

    1

    Unique 'Sandwich Sum' Ruleset

    2

    Hand-Crafted Puzzles (No Computer Generation)

    3

    Intuitive Interface and Note-Taking

    4

    Hints from Logic Experts

    Tips

    Promotion Videos

    Introduction to Sandwich Sudoku - YouTube

    Related Videos

    Gameplays

    Q&A

    Only basic addition is required! The challenge comes from the logical deduction of where the numbers fit.

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