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Sandwich sudoku(Medium) https://gridpuzzle.com/sandwich-sudoku/3j1ve

Latest score list for #3j1ve

gu
guest 剛剛
12'38''
an
anonymous 16分鐘前
9'55''
re
refinancing 36分鐘前
9'17''
Li
Liam 11分鐘前
5'44''
gu
guest 56分鐘前
11'59''
gu
guest 33分鐘前
3'58''
Ga
Gas 39分鐘前
14'15''
an
anonymous 一小時前
16'50''
bu
business 2小時前
14'58''
Cl
Classes 2小時前
13'16''

Latest score list for Sandwich sudoku

wa
warranty solved puzzle No#3e11n;
6'35''
sa
sandwich solved puzzle No#l48x8;
19'1''
Wo
Workers solved puzzle No#3wk62;
14'7''
an
anonymous solved puzzle No#3e987;
5'12''
re
recovery solved puzzle No#lmxrw;
6'0''
No
Noah solved puzzle No#l8g7x;
15'44''
sp
specialist solved puzzle No#oy201;
5'54''
se
semrush solved puzzle No#3w7ne;
13'57''
Am
Amelia solved puzzle No#lrzr1;
14'7''
de
degree solved puzzle No#od2vv;
8'7''

How to play Sandwich sudoku

Sandwich Sudoku Rules

  • Fill the numbers 1-9 into each row, column, and 3x3 subgrid of a 9x9 grid.

  • Each number can only appear once in each row, column, and 3x3 subgrid.

  • Fill in the blank cells with the numbers 1-9 so that each row, column, and 3x3 subgrid contains the numbers 1-9.

  • contains extra numbers outside the grid. These extra clues indicate the sum of digits between 1 and 9 in the corresponding row or column.

Sandwich Sudoku is a type of Sudoku puzzle that uses a non-standard grid. The grid is divided into several smaller grids, and the numbers in each smaller grid must be different. In addition, there are also numbers outside of the smaller grids that provide clues to the solution.


The outer borders of the grid contain the sum of the middle numbers in the corresponding row or column. For example, in the row with the numbers 2, 4, and 6, the outer border would contain the number 12. These numbers can be used to help solve the puzzle by providing clues to the possible values of the missing numbers.


Sandwich Sudoku puzzles can be more challenging than standard Sudoku puzzles because they require players to think more creatively and use more problem-solving skills. For example, players may need to use the clues outside of the smaller grids to help them solve the puzzle, and they may also need to use logic and deduction to narrow down the possible solutions.

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