Puzzle Talk

• Sign up for Sokoban Online or log in to join the conversation.

• 
  pc46 Pro

  Is 28 steps a perfect score?

  January 15 2015 at 14:31
  • More replies – Log in to view all
  • 
    geometree Pro

    @pc46: Spoiler alert ! ==== Your right hand man can go right instead of left on his 4th move.

    January 15 2015 at 17:30
  • 
    pc46 Pro

    @geometree: Thanks, I got it. I have tried building puzzles in the past were you have to sacrifice a man to complete the puzzle (oops another hint)

    January 15 2015 at 18:46
  • 
    geometree Pro

    @pc46: It's still a dream of mine to build a decent one where it's quite difficult to see when the sacrifice is needed.

    January 15 2015 at 21:38
• 
  Jonathan Handojo Pro

  Dude... a sublime number is a number where the number of its factors and the sum of those factors are perfect numbers. Perfect numbers are numbers where the sum of its factors are equal to the number itself. 28 is a perfect number, not sublime.

  January 15 2015 at 10:16
  • 
    Jonathan Handojo Pro

    You are right that 29 is a prime, but prime numbers are numbers with only 2 factors, 1 and the number itself.

    January 15 2015 at 10:36
  • 
    geometree Pro

    @Jonathan Handojo: Wow. I knew 28 was 'perfect' but couldn't make that rhyme so I made up 'sublime'. I'd never heard of sublime numbers. Wikipedia says there are only 2 known sublimes. Wonder if there are any other numbers of which only 2 are known.

    January 15 2015 at 14:32