Killer Sudoku by Sudoku.com

3 mistakes and 1 hint limit for the free version made it challenging and fun. Keeping a long streak of wins was actually exciting, but then i paid for the app and the thrill is gone. Im so disappointed, like what is the point? You really have to try and lose to lose at this game. And the challenges and rankings are absolutely worthless because you can just take unlimited hints and clear a game in no time, making you the fastest player online. Games with rankings shouldnt have a pay to win feature like this one has. If you like this game and want to keep it challenging, dont pay for it A couple more things. On the paid version there is an option to restart a game, this button is in the same position “new game” would be, so you will accidentally click it sometimes. Tge downside is that doing so resets your winning streak which is the one statistic that matters to me. I had twenty wins in a row wiped because i accidentally clicked that button. Lastly, the error graphic is very hard to discern from the correct graphic, so many times when i make a mistake i wont even notice and ill continue making mistakes till i lose the game because dark red is really hard to differentiate from dark blue in a thin font. Even worse, the correct animation animates from red to blue.

I don’t mean to scare off anyone from this game, it is a great, fun Sudoku+ puzzle game!! I had been solving Sudoku puzzles for years when I first encountered it, so I cannot speak from personal experience as to how it might be to solve as a true novice, but it adds another element that gives you information about which number goes in which square, so I feel like the easy puzzles might be even easier and more fun for someone who is struggling to solve beginner-level Sudoku puzzles using only logic. And for those of us who love logic puzzles, it adds another layer! As an Expert Level (or whatever fun moniker is given to the most difficult level of Sudoku puzzle) Sudoku fan, I have been playing this game for YEARS now. I love that it gives me an additional tool for solving Sudoku problems! The “math” is very simple addition, and keeps my single-digit addition facts fresh, but mostly it is just incredibly satisfying to be able to solve a “blank” Sudoku puzzle! High praise to the creator(s) and developers! Thank you for adding a fresh take on a fun puzzle to my daily brain challenge!!

Edit: I’ve been reading through other reviews and I’m glad I’m not the only one who is very upset about mid game ads. Even reviews from ONE YEAR AGO saying they had this issue and on of the developer replies said they were going to get rid of the mid game ads, seems that was a lie. Their only other responses are well just pay for ad free…no because we play it because it’s free. I understand ads help you to make money to keep it free but it’s sudoku not a high tech action game…seriously there can not be a high enough expense to have ads play 3-5 times from start to finish of one game of sudoku... I’ve played call of duty free on my phone and had zero ads and other high animation games that only play one ad after each round (which is fine). You guys need to reevaluate your ads placements…seriously. I loved this game ever since I started playing it, the fun of sudoku with the added challenge of adding up the numbers to fit the certain boxes. It was my constant go to game, but all these ads recently have really made it a lot less fun. I was fine with the ads after you complete a puzzle, no problem, but now I get 2 or 3 ads every game randomly throughout the middle of playing my rounds. I go to fill in a square and boom random ad, it’s infuriating and super annoying. Sadly, I’m going to have to uninstall because of this reason and search for a new sudoku that doesn’t have ads pop up in the middle of my game play.