Killer Sudoku by Sudoku.com

*Want to play a challenging version of sudoku? Yes please! Ok here’s an ad. I suppose that’s the price for a free game, play the ad. [ad plays] [plays game] *You’ve played a few numbers? Time for an ad. [ad plays] Blimey, another? [plays game] *You’ve placed all the 7s? Time for an ad [ad plays] Surely not! *Youve filled a line? Here’s an ad [ad plays] ANOTHER ONE? [plays game] *Ooh, you’re getting towards the end, here’s an ad [ad plays] [finishes game] *Want to continue? You’ll need to watch an ad [ad plays] Player deletes game because the ads take longer than the games.

This is the only game that I like to play on my phone. It’s set up very well except it keeps being interrupted with ads. I accept that ads are part of it if I want to play for free but I wish they were only on in between games. One ad doesn’t give me an option to X out. It only offers view ad or decline, but when I hit decline my whole page goes blank, it gets stuck there and I’ve no way out of it. My only option then is to delete the app and reload it………..seriously annoying.

The game is perfect but the advertising is annoying. To be expected with something free however.

Great game. Challenging and intelligent. However the experience is destroyed by ads.

What a brainstorming app, its energising.

Nearly very good, but needs some improvements. The numbers to select should indicate how many have been placed. Be better if there were separate keys for pencil and pen. Too easy to make a mistake when mode switching Too easy to overwrite a pen entry when move click hasn’t registered. Just recently I’ve noticed a massive increase in adverts, which is made much worse with the adverts frequently causing an orientation switch, which is really annoying

1 - they filed the app with ads. App used to have an ad before and after abrange, which is ok. Now I just got 2 ads DURING the game. 2 - they made the puzzles easier. Used to like killer sudoku on expert mode, trying to understand why I can’t find next number, calculating all the possibilities and stuff. Now they just give you two single digits to start and you can solve most of the puzzle using single sudoku rules, instead of killer sudoku

Was for a long time the best available killer sudoku app on here. With recent updates performance has dipped exponentially. Can be up to a 5-7 second delay between tapped input on the screen and the in app display changing. Has also recently become heavily over saturated with ads now also, encountering ads prior to game, up to twice in game and again at the end of the game. Painful and would recommend an alternative now to what was once a smooth running and highly relaxing app to use.

Great layout and easy to use, however I would change the list of numbers at the bottom, 99% of my 'mistakes' are because I press the wrong number by mistake. They are too close to each other!

Blocks need more definition. Also better instructions on how to play the game