Normal sudoku rules apply but in the final grid, every clue is wrogn (aka invalid)... Clues are valid if: [Everything is "totally standard" Undar promises...] Digits in a killer cage sum up to the small clue in the top left of the cage; Clues outside the grid are correct X-sums. ie Clues show the sum of the first X digits in that direction where X is the 1st digit. Clues outside the grid are correct skyscraper clues. ie The digits in the grid represent the "heights" of skyscrapers. Clues represent the number of skyscrapers seen from that direction. Taller skyscrapers block shorter ones. Digits on a thermometer increase from the bulb end. Digits separated by a black dot has a ratio of 1:2. Digits separated by a white dot are consecutive. Digits separated by X have a sum of 10. Digits separated by V have a sum of 5. All digits in a circle appear in the 4 cells touching it. Maximum cells are larger than all 4 adjacent cells. Not all clues are necessary and some of them are just there to "throw you off".