SUNA SUDOKU

A variant of the puzzle designed in an elegant stone-bamboo style. But the system of entering numbers into cells inSuna Sudokuis different from the traditional one. You can't place a pebble with a number (and all the numbers here are plotted on pebbles) in any cell of the field. Each stone thrown in a vertical column or horizontal row will fall to the first obstacle — another stone that has already been placed in the field cell.

Here's an example. In the third column of the fourth row is a stone, around which all the cells are free. All other cells in this column and row are also empty. With this configuration, you can only place a new stone in the 4th or 2nd column in one turn by throwing it from the right or left on the 4th row, or in the 3rd or 5th row by throwing it from the top or bottom on the 3rd column. The game itself will show you more clearly this system. Start and see for yourself.

As for the rules of the puzzle, they are no different from the original Sudoku. In each small 3x3 square and in each horizontal and vertical row, no number should be repeated, but can only occur once. In this case, Suna Sudoku is considered solved if all cells of the field are filled in. The authors of this version have limited the game time. You have 10 minutes to complete the task.