Killer Sudoku by Sudoku.com Hack 3.1.0 + Redeem Codes

I play this game several times per day. It’s so relaxing and adds a great strategy to regular sudoku. There is a defect that I would like the developer to fix. If you have a 3 square cage that is shaped like an “L” instead of a straight line, when you solve one of the squares in the cage that solved number is removed from the other squares in the cage. For example if my 3 squares add up to 12, if one of the squares is 3 then the app removes 3 from all the possibilities in that row and column and block PLUS from the other two squares in the cage. If your cage goes between two different blocks, like if my “3” solved square in a cage with sum 12 is in a different block than the other two squares, it should not remove the 3 from the diagonally adjacent square. Because it is possible for the squares adding up to 12 to be 3, 6, 3. This has messed up my games many times so I’m on the lookout for it now. Fix for this defect: when you solve a square only remove that number from the possibilities in the row, column, and block. Ignore the other possibilities in the same cage.

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.

I really enjoyed learning the tricks of the game, especially through the events that have randomized difficulty levels easy through hard. At first, the daily challenges felt impossibly hard, but became more doable as I learned. Recently, though, they have dropped their difficulty level and become less of a fun challenge. I used to look forward to the daily challenge, as it was often more difficult than the randomly generated extreme puzzles. Now, I am usually disappointed by them.

As far as the rest of the app, the puzzles are well constructed. It’s easy to switch from notes to entering digits. The ads are a bit annoying, but quickly skippable. They got to make money somehow. My biggest complaint is that an incorrect input immediately registers as a mistake. Sometimes I like to try out a number to see if it would work without being told whether it is correct, or my finger just slips. The hint function isn’t terribly smooth, either. If you have an input highlighted, a hint will just confirm that it is correct, which you already know because of the mistake function.

I loved this game — until today. Since this is a free game, I expect and accept ads. However, it’s escalating way beyond okay. At first the ads were between every two or three games, then after every game. Recently there has been a mid-game ad in every game, plus at the end of each. Today there has been two and three mid-game ads and the between game ads. The ads are around every two minutes, but often less. It throws off the pace of the game in several ways. I’ll be adding up a larger block to decide what I need to put in, but after the ad, I have to recount. Since I don’t always come back in the same square I thought I was in, I have to be sure not to type the number I had been typing because I’ll get an error and have to watch another ad to “buy” another chance. Instead of being relaxing and/or challenging, today was frustrating and irritating. I finally quit and won’t try again today. If this greed fest continues, I’ll be looking for a new game (and NOT your regular Sudoku — it “caught” the same disease today)

The app itself works fine most of the time, and the ads are skippable either immediately or after a few seconds.
The only issue I have with it is that it makes my iPhone Xs heat up and run extremely slow after I've been playing for a while (usually an hour or two). The game itself will freeze for long moments, which is really annoying when I'm trying to get a good time, and everything else I try to do on my phone will be delayed and glitchy.
The app is simple enough that it shouldn't require that much processing power, and it definitely isn't very graphically intensive since everything is just flat colors and numbers. I make sure to close all other apps that are running in the background, so that's not the problem. My concern is that this Sudoku app is running some kind of hidden software commands in the background while I'm playing, and that doesn't sit right with me.

I agree with so many others!! I havent had a chance to play this sudoku in quiet a while but i always enjoyed the double challenge - but the number of ads today is just so over the top- i never remember it having ads before ( so they must have been minimal) —now they just pop in -in the middle of my moves - at random & they are WAY too numerous & too lengthy- getting aggravated & frustrated sort of defeats the purpose!
Think ill just go back to one of my books of Sudoku puzzles instead.

Maybe others have more patience. Too bad i really liked this version - but judging from the dates on similiar reviews the developer has had quite some time to change this issue& hasnt! ( I made a decision a long time ago that i would NOT download any of the irritating game ads that interrupt me in a game i have already been playing- so me being subjected to them is also completely pointless. THEY WILL NEVER GAIN A NEW CUSTOMER IN ME & all payers shud be forewarned of the EXCESSIVE AMOUNT OF ADS IN THIS GAME! Its a crazy excessive amount imo.) so sad to say— goodbye.

I had this game previously and played it a lot but it started freezing rather badly: the game stopped responding and just sat there blocking any use of the phone. When I tried to shut down the phone to get it off the screen either dimmed or brightened but didn’t clear the game until the battery of the phone drained down past one percent. It got to where I couldn’t play more than one game without this freezing occurring. I deleted the game and did without for about half a year but saw an ad and thought I would give it another try. Same song second verse, second verse same as the first. After the battery drained down and I got control of the phone again I deleted the game and have installed another sudoku game from another developer. My cell phone is my only phone and I can’t have it frozen like this. I am elderly and my health is not what it was. If I had an emergency I wouldn’t be able to call anyone for help while the battery is draining. Thanks for the fun of the game but no thanks for the bug. Bye.

However the last update seemed to add some problems! First, they found a way to force you to watch even MORE ads be adding them into the middle of each game. You complete some numbers and are forced to watch an ad. Frustrating! And not sure if watching the ad adds to the time it tracks to solve the puzzle. Second, and a more serious issue, playing this game causes some serious drain on my phone battery and processing. My phone sometimes s l o w s down noticeably and the battery will heat up - so there is some serious processing going on in the background that is causing this! And I’ve tried ONLY having this app open, nothing else, and still have this issue, so it is definitely this game that causes it. It is so bad that on 3 recent occasions my phone has just locked up and I had to shut it down and reboot. One of those times I had to Google how to force a reboot because it would not shut down! I’ll move on to another killer sudoku app until maybe this issue is fixed in an update. Until then, downloaders beware!

First off, I love this game. I started playing it about a year ago and have drastically improved my sudoku skills since then. I just have a couple suggestions to improve the experience:

1. Sometimes the app glitches and the timer doesn’t start when the puzzle opens, and it’s not something you realize until midway through the game. I’ve had it happen a few times to me and I’ve accidentally finished a game which screwed up my stats and set a false “best time.” As a side note, the timer usually starts after the first ad. Please either fix this issue or allow us to edit, or somehow rebuttal, the puzzle completion time.

2. I would love if y’all added an “Insights” feature. I love seeing how I stacked up against other people that played that puzzle as it gives me a better sense of my own progression. Some other Sudoku apps use a cool insight tool, and I know sometimes after I complete a puzzle it will show me “you were faster than ‘x’% of players,” but I would like to be able to see that for all puzzles. I don’t even mind watching an ad to see the insights. If y’all have the data for it, I would also love to see the average completion time on top of any other stats you think would be fun to see.

I hope you have time to consider my suggestions! Again, I love the app and appreciate the challenge it provides.

Interface is easy to use. Preset numbers are black and numbers you pencil in are dark blue. Not enough contrast to easily discern which are pre-existing and which you wrote in. I tried to see if there was a way to change the font color... not there. Also magnifying glass doesn’t help me see the number total in the corner of the cages. It’s super super small. I’ve also mistaken some cage groups when they extend over to another 3x3. It would be helpful if the dotted line was in red or another contrasting color.
Also when I initially started playing, I accidentally hit a wrong number- one that was not my intended target. Wasted an error bc of mistyping. There should be some way for it not to count if it is corrected immediately. I ended up turning off the error count in settings.
Fix these and the game would be perfect.
Disclaimer- This is my first killer sudoku. I do enjoy it. I’m not sure if others address the above issues or if they’re all the same.