"Po tay" voi sudoku

Hi VH & ACE,

Gõ các bài Sudoku từ sách vào Word file mệt phờ, DC đành giương cờ trắng pó tay.

Trước khi chọn "tẩu vi kế", xin chỉ đường link cho ACE nào còn quan tâm

xem thêm các bài và kỹ thuật giải Sudoku ở đây >> http://rishipuri.blogspot.com/

Cheers, DC.

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Mixed Samurai Sudoku

There are five sudokus connected by common boxes. The top left sudoku is a Diagonal Sudoku. Top Right is a Windoku. Bottom left is a jigsaw Sudoku and the bottom right is an extra region sudoku. The central grid is a classic sudoku. The classic sudoku shares is edge boxes with the other 4 sudokus.

Kropki Sudoku

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. If the absolute difference between two digits in neighbouring cells equals 1, then they're separated by a white dot. If the digit in a cell is half of the digit in a neighbouring cell, then they're separated by a black dot. The dot staying between '1' and '2' can have any of these dots.

Greater-than Sudoku
Rules of classic sudoku apply. Additionally, numbers in the 3x3 boxes follow the mathematical pattern of greater than or less than depending on the symbol between the two cells. This puzzle is of Easy difficulty level.

Sum Killer Sudoku
Fill grid such that every row, column and 3x3 box contains the digits 0 to 8. Additionally, the number on top of the cage gives the sum of all digits inside the cage. Numbers cannot repeat inside a cage.

Product Killer Sudoku.
Rules of Classic sudoku apply. Additionally, the numbers on top of the cages denotes the product of all the digits inside the cage. Numbers cannot repeat inside a cage.