Logic Masters Deutschland e.V.

F-Puzzles

CTC

Your job is to solve the sudoku (numbers 1-9 in each row/column/box) without it being possible for me to find mathematical equations

For each row (from left to right) and each column (top to bottom) I am allowed to use the following symbols:
brackets "(" and ")"
the equal sign "="
and either the plus sign "+" OR the minus sign "-"

Valid Examples: (3+4=7), (13-6=7)
also valid: (2=3-1) (the equal sign can occur before the plus/minus sign)

Invalid Examples: 3-1+2=4 (only one symbol, either plus or minus is allowed)

If I manage to find a mathematical equation anywhere in the grid, I win.
There is only one solution where you win.

In the example below I can find a lot of mathematical equations (not all are shown)