Killer Sudoku by Sudoku.com

Used to be really good, only get ads after completing a level or when wanting to continue after 3 errors. Now they have ads in the middle of the game. Don’t recommend at all and will be removing the app

Ads for other games popping up during a game is a right pain. So I am going to delete this app.

Notations are sometimes removed when they continue to be a solution option. If interested, I can provide screenshots to demonstrate. I have suspected this for Killer and standard sudoku app; I’ve manages to confirm it now.

Daily challenge far too easy

Play it every morning to get my brain in gear. It would be great if you could switch off the hint button as sometimes I hit it by mistake. It would also be good if your correct numbers were set once selected as there's no reason to want to change them. Thanks for an awesome game!

Adds!!!

Unfortunate this week it has changed and now there are ads every few minutes. It destroys the whole flow of the game.

Was upgraded recently and went backwards. Notes don’t get cleared correctly and you get 5 or 6 adverts per game. The games have been dumbed down too.

Fun game

This was a very good game, and I could put up with ad interruptions when you had nearly solved the puzzle. Just lately there are too many ads. I used to play this daily, but will probably turn it off and find another game soon. It also hogs your battery and is slow to respond lately.