Grid Ten (aka Numberbus, or Tenner Grid) - a puzzle, which is a rectangular table of nine columns. In some cells there are already numbers from 1 to 9, the rest are empty. They need to find the right numbers. The bottom line contains the sums for each column. The numbers in the cells touching each other by sides or corners must be different. Also, numbers cannot be repeated in lines. Repeating of numbers is allowed in columns.
The game is called Grid Ten because in the original puzzle uses 10 columns (with zero). On our site we use only nine digits like in Sudoku, Kakuro and other similar number puzzles. In addition, there are also simplified versions of puzzles of 5 and 7 columns, in which, respectively, only 5 or 7 numbers.