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Sandwich sudoku(Hard) https://gridpuzzle.com/sandwich-sudoku/lmygg

Latest score list for #lmygg

gu
guest 刚刚
8'26''
br
brother 16分钟前
18'56''
gu
guest 22分钟前
5'39''
pr
programs 41分钟前
15'46''
te
teriyaki 54分钟前
10'45''
Ev
Evelyn 一小时前
14'19''
El
Electricity 一小时前
16'41''
so
social 44分钟前
13'35''
gu
guest 一小时前
3'51''
We
Weight loss 2小时前
13'46''

Latest score list for Sandwich sudoku

El
Elijah solved puzzle No#l969q;
9'1''
Ha
Hail car solved puzzle No#okde1;
18'16''
re
relief solved puzzle No#l21w8;
19'6''
gu
guest solved puzzle No#oy12n;
16'30''
gu
guest solved puzzle No#3w8nk;
8'43''
gu
guest solved puzzle No#3nddx;
5'34''
an
anonymous solved puzzle No#l0x0w;
19'29''
do
doctors solved puzzle No#l09ww;
8'6''
La
Lawyer solved puzzle No#l2pz5;
12'54''
Is
Isabella solved puzzle No#l09ww;
16'11''

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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