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okay um sorry about this but I just figured out how to play this game and it is now considerably easier once I realized: 1) lock down any number bigger than the difference of the sum and the goal number, and 2) any combination that could only be bigger than the said difference.
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All the puzzles have 1 definite solution. Except for the 2-4 ones. For the 2-4 ones, keep circling until there is no 100% solution. Then go diagonally across the board so the numbers you click will only hit each unsolved row ONCE.
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So much guesswork needed and no way to keep track. Its all about guessing the first few couple of lines correctly then solve the rest in the hopes you made the first right. I dislike this game for this reason so much. The closest I can think of is Sudoku but thats actually so much fun, no guesswork there and you almost instantly know if something is correct or not. This game desperately needs at least 3 things; an option to lock a single circle and an option to color in another as a guess, something to denote a way you started out before.
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This really isn't a hard game if you use math and logic: [1] Start by picking out rows/columns whose sum is very close to the target number, you can already lock any number greater than that difference. [2] For those with much larger differences, it helps to run through the combinations of numbers can be added up to form that difference, any number that cannot be added up to form that difference, should be locked as well. With sufficient numbers being locked, you can slowly begin to eliminate numbers and clear the board.
[3]As for the 2-4 mode, it would be useful to analyse the 3s first, since they're used in odd numbered differences. Make all possible logical moves without guessing BEFORE dealing/guessing the rest of the 2s and 4s, and you will have a much better chance of clearing it; there are usually multiple solutions anyways.
*I cleared all 3 badges in about 1 hour using this*
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Tips: 1.) Lock a number that is more than the required value to be removed in that line. 2.) Lock a number that dont have any sum with other numbers that will be equal to the required value to be removed in that line(Note: Consider that sums can be 2 addends or more than 2) 3.) If an specific number in that line is required for any sums possible that can be equal to the required value to be removed in that line, immediately remove it and lock it. 4.) Lock all the numbers in a line if you solved a line, only do this if you are really sure you solved a line right.
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Nice game overall, relaxing, but those 2-4 grids? Ugh. Ended up half-guessing and course-correcting ad-hoc rather than logic grinding. Everything else was fine including 8x8, fully deducible without leap of faith down a path choice.
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I really don't like puzzles where you have to guess stuff. Please add some kind of undo function, as that would make the whole guessing a lot less tedious.
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KRMorben, the best so far doesn't track how many you've done, as you need to do at least 1 of each of the 3 types. The 1-9, 2-4, 1-19 reflect the possible range of numbers in the cell.
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I enjoyed the number logic gameplay, and the music :) The UI is pretty good, and a one thing would make it even better: a camera button to 'take a picture' of how the board is right now (with whatever limit on # of pics that works), with the initial configuration included as a preset (to double as a reset), and a 'revert to picture' command, which picks one of the pictures and sets the position to match that. People could then set a 'checkpoint' before doing some uncertain exploration.
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To those who wonder about the 8x8 2-4 levels: For some of them (and other puzzles, too, sometimes), one can logically deduce that the puzzle contains more than one solution after having investigated every part of the board, and from there solving it means arbitrarily choosing a solution. The simplest case would be when all the undetermined circles form a "box" in the grid whose corners are each a 4, in which case the two solutions are 1. remove a 4 from the top-left and bottom-right corners, and 2. remove a 4 from the bottom-left and top-right corners. Either solution works (no matter what the sums are). It does not require guessing, even though it might seem like it.
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Are these 8x8 2-4 Levels are still logic? Had the feeling, that at some point you can't solve them without trying. But everytime I try, i made it 1st try, which wonders myself. I think at this point there is more than one option, which is correct.
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Had most problem with the 2-4 8x8, but finally figured out that quirks that I could solve it reasonable everytime with minimal guessing.
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its a very fun game, but i'm not a fan of the medium badge containing the 2-4 8x8 badge. I dont think it can be logic'd, having to guess and undo really is annoying/hard. yes i looked at the total of each row and column, did the math to see what was needed to complete and what was needed to be removed and locked in or out relivant numbers, i tried doing sudoku logic where you create dependancies in order to eliminate options, but i wasn't able to figure out anything useful, i'm not saying its impossible, just beyond my efforts so far.
so my vote is to either remove it from the badge or make the badge "hard"
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I think the name of this game was an attempt to condense Mark Ruffalo's name. You know? The guy that plays the modern-day Hulk? Hence, the product became "Rullo".
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Clicking the header of the row / column shows you the total in that row. Countless time adding rows up in my head, all for nothing.
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How I solved it. Add each row and subtract total from the goal. Note that number on a scratchpad as the amount that needs to be removed. Do the same for the columns. Then starting top down get all the rows solved. Once all the rows are solved do the columns left to right....adjusting as you go. Pretty straightforward once you have the numbers that need to be removed.
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Nice game, I had to use a notepad on the side to list the possible combinations for each row and column. The 2-4 levels are still the hardest due to the multiple solutions. No, having more than one answer doesn't make it easier, it makes you confused as which is right and which is wrong.
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A tip for everyone struggling with 2-4. The only odd number on the entire board is 3. Check each of the column and row headers and see if you need an odd number, this should allow you to easily place all the threes and then you only have to worry about the even numbers. Be careful locking them though, as some solutions require 2 threes to make a six.
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As other people have said, I had to trial-and-error for 8x8 2-4. I was able to only use logic most of the way but I ended up stuck with all columns and rows requiring a 4 to be excluded and all unconfirmed tiles were 4s. I also think differences between required and current total sum would be more useful than just the current total sum.
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How I solved things: 1. Click around on the goal boxes until you find a relatively small difference between the gray running total box and the goal box. | 2. With this difference (call it "x"), determine what combinations of numbers cannot possibly add up to "x" and lock in those pink numbers (for example, lock in any numbers greater than "x", since you cannot add anything else to compensate for removing that number). | 3. With the remaining unlocked numbers, find out which ones add up to "x". If only one number/combination of numbers adds up to "x", then that is the solution. Remove that number/combination and lock the row. If more than one number/combination adds to "x", then move on to another row/column. | 4. Rinse and repeat. You'll return to unsolved rows/columns when you lock another row/column that intersects it. | *If you get to a point where all rows/columns have multiple solutions, you will have to resort to trial and error. Try one solution and see where that takes you.
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I suppose the difference between momentary supposition and guessing-and-checking every possibility all the way to the end is only one of degree, but the 8x8 2-4 seems unsolvable within realistic human ability without cheating (that is, just guessing and hoping at some point).
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If you're somehow lost, try to aim for columns / row with least unmarked numbers or find it impossible to follow algorithm any longer, begin guess-work on unmarked numbers (don't mark guessed numbers, so you can always back-up). If you're guessing, refer to the probability and remove the numbers with least chance to be incorrect guess (eg. removing one of two 2s is usually better than removing one of five 2s, especially If it marks 2 rows/columns as correct). There're some other rules related to how total sums in columns / rows are moving, but they're too intuitive for me atm (eg. you should sometime aim to somehow transfer final sums to crossing between unfinished rows/columns by removing two 2s and replacing them with just one 2 in crossing or the other way around) and I can't list them comprehensively.
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(Part II)
Removal ruleset:
Sum of unmarked number equals number to be removed - remove all unmarked |
Only one unmarked 3 in column/row + Need to remove an odd number - remove 3 |
Only one unmarked 2 in column/row + Need to remove 2 - remove 2 |
Need to remove 5 + Only one unmarked 2 in column/row - remove 2 |
Only one unmarked 2 in column/row + No unmarked 3s + Need to remove number indivisible by 4 - remove 2 |
Only one 4 in column/row + all remaining numbers are 3s + Need to remove 7 - remove 4 |
Only one 2 and two 4s and no 3s + need to remove 8 - remove both 4s and mark 2 to stay.
These aren't all of the rules, but they cover some of the most common cases. Remember to always inspect changes in altered columns / rows related to newly removed or marked numbers and re-apply rules above.
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(Part I) (For 8x8, 2-4)
Rules refer only to unmarked or unremoved numbers.
Marking ruleset:
Need to remove 5 - Mark 4s to stay |
Need to remove 4 - Mark 3s to stay |
Need to remove 3 - Mark 2,4s to stay |
Need to remove 2 - Mark 3,4s to stay |
Only one 3 in column/row + Need to remove an even number - mark 3 to stay |
Only one 2 in column/row + Need to remove 4 - mark 2 to stay |
Only one 2 in column/row + No 3s + Need to remove number divisible by 4 - mark 2 to stay |
Only one 4 in column/row + All remaining numbers are 3s + Need to remove 6 - mark 4 to stay |
Only unmarked 3s and unmarked 4s + Need to remove 8 - mark all 3s to stay |
Only unmarked 3s and unmarked 4s + Need to remove 9 - mark all 4s to stay |
Only one 2 in column/row + Need to remove 7 - mark 2 to stay |
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A few suggestions for Rullo. 1) A save mode so you can save a puzzle and come back to it. 2) More achievements built into the game so you can feel like you are progressing and have a final goal in the game. The save mode would also allow us to remove a mistake we might have made. 3) Oh, and I’d also like the sums to be always available instead of requiring a click. And also, change the SUMS to the amount the line is of by. For instance, show a line as with 1,2,3,4 | 7+3 (that means the goal is 7, but its off by three ) You can make space for this by removing the left most GOALS line. One more idea, add a top 10 personal times for each mode (and an average of those 10) so we can see our own progress.
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Nice game. I agree an undo button would be nice. And the 2-4 8X8 puzzle was half guessing and half logic (which goes back to the need of the undo button). But the gameplay is simple and all puzzles seem to be at the same difficulty in terms of logic needed to solve. The endless games give different sized puzzles that would be nice to have an option on classic mode. At least a few more options of larger sizes to give a bit more difficulty. But well done. Easy to pick up and the math is not hard.
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8x8 2-4 really need some luck(guessing) to solve, since there are too many choices for each line. 1-19 is super simple.
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Make that the best strategy I've found for every level. Another example: (23/15): 4, 4, 2, 4, 2, 2, 3, 2. 23 - 15 = 8, and you can't add 3 to any of the other numbers to get 8, so lock 3. But you can add different combinations of 4 or 2 to get 8, so you're done here for now. Move on to another row/column.
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The best strategy I've found for completing endless puzzles is: for a given row/column, click on the edge-square to see the remaining difference. Then look at the row/column and lock the squares that can't be added up to form that difference. E.g. (51/47): 8, 19, 4, 12, 8 - the only number you can subtract is 4, so remove it. Then move onto the next. Lock any rows/columns you solve, and repeat.
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I wish it saved more stats in detail. I'd like to know what the fastest time was for each puzzle type was, so I could see if I had improved or not.