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voider

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About voider

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  1. Referring to the website, not this particular thread: (Maybe in the wrong section of the forum, but it is a reply.) Firstly I agree on the value of collaboration and openness to creativity. But I believe in the context of logic puzzles there is usually a distinction between "something I haven't thought about" and "something that makes no sense, and is based on assumptions that are difficult to intelligently comprehend". Obviously I must have some pride in what I believe to be logical or at least reasonable thinking (even if it is inaccurate) because it affects me when others can't see this
  2. Personally I find it bizarre. I've noted that the "signal to noise ratio" (if signal means correct/true/good reasoning/answer/process, noise means bad/incorrect/false) on brainden is worse than most ad hoc forums or messages, even for the trivially easy puzzles. One of these forms is where people give answers that don't mean a thing to anyone else; the words and logic is practically gibberish in English. How does this happen? Even for most people to acknowledge a correct logical answer seems to be impossible here. If this place lacks common sense, you have to wonder what "communal" value there
  3. Got to say, it's __________ that five of us have completely different solutions, and no working in common. Someone find the right word for me
  4. The probability of four same color (thus first chair winning): 8/8 * 3/7 * 2/6 * 1/5 = 1/35. Same answer results from using combinations. There are 70 (ordered) permutations of the 8 stamps, each with equal chance. There are 16 (ordered) permutations of 4 of the 8 stamps, not with equal chance. If this doesn't occur, then first chair cannot know the answer. Second chair now knows that first chair does not see: YYXXXX Specifically it leaves 68 permutations with equal chance. Then, if he sees XXYYXX he wins. As in the first case, there are two permutations that satisfy this. So he wi
  5. I assume she will randomly choose the stamps because e.g. if you chose the first chair + the four stamps you see are the same color. So you want to maximise your chances.
  6. You can't say STOP after they've already won.
  7. Consider the decision tree. You can calculate the probability that you will win, when you predetermine on which round you will say STOP (if you survive until that round). The first round probability is 4/12=0.33 Second is 0.397979... This increases, until some round to say STOP where the probability of winning will begin to drop. Obviously the "general solution" is to say STOP on the round that produces the overall highest probability of winning relative to the beginning of the decision tree. My solution would be a computation, rather than a calculation. There are multiple ways of presen
  8. It looks strange but it's too easy. Might be harder if you have to construct it in your mind with your eyes closed.
  9. voider

    133 is correct, = 7C2 * 6 + 7
  10. voider

    One Up Me

    Sounds like a way to earn reputation... if you're into that...
  11. voider

    abortoperation d????????????? day in monday izj sday in tuesday oizq day in days iaq Does the alphabet/number map change after using a letter?
  12. voider

    Oops correction:
  13. voider

    Boolean algebra: 1 + 1 = 1 Galois field 2: 1 + 1 = 0 Subspaces: 1 subspace + 1 subspace = 1 subspace Sand: 1 pile + 1 pile = 1 pile Speed of light: 1 c + 1 c = 1 c Networks: power of 1 component + power of 1 component < power of (1 component + 1 component) Problems: 1 small problem + 1 small problem = RAGE Memorisation: time taken to learn something twice as long
  14. voider

    I've looked at a few patterns, none of which seem to fit perfectly, but my intuition definitely favours D and rejects A and B overall. The more obvious observations are the near-symmetry along one or both diagonals, that (3, 2) is symmetrical, (3, 1) is a rotation of (3, 2), that each block has 3 of each colour, that the columns of the first row blocks have all colours.
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