Logic Masters Deutschland e.V.

This puzzle was created in response to one of Scojo's Setting Saturday prompts. The theme this week, set by Flinty, was to 'Do something fun with given digits in fog'.

Place the digits 1 - 9 once each in every 3x3 box, in every column, and in every row in the grid.

Clues outside the grid give the sum of all the digits between the 1 and the 9 in that row or column.

At least two cells in the grid contain a frog. Each of these cells contain the same digit.

The grid is covered by fog. When digits are correctly placed in the grid the fog will clear in that cell and perhaps in some other cells.

All 1s and 2s in the grid are given digits, albeit initially hidden by fog. So when the fog clears in a cell, if the cell is empty, it cannot contain a 1 or 2.