The 11th Hour Hints

Solution

  • 1 of 15: The first thing you should do is take a look at what moves are available to you.
  • 2 of 15: Ignoring possible pieces in the way, it's possible to move through many squares, one after another.
  • 3 of 15: In fact, you can make a continuous path across 9 of the squares.
  • 4 of 15: Labelling the board as follows:

    1
    2 3 4 5
    6 7 8
    9 10

    this path goes from 5 to 7 to 1 to 4 to 10 to 2 to 8 to 9 to 3.
  • 5 of 15: You can also jump into the path from 6, then move to 4 and 10, and so on.
  • 6 of 15: Now take a look at where the knights are.
  • 7 of 15: Three of the knights are on consecutive parts of this path, and the fourth is on square 6.
  • 8 of 15: The basic idea is that you should keep all of the knights more or less together on this path, but you should use square 6 as a sort of holding area, so you can reverse the knights' order.
  • 9 of 15: Start out by putting the knight from square 6 onto the main path, and then slide the knights all down to the end of the path.
  • 10 of 15: Then as soon as you have a chance, take one of the white knights and leave it on square 6.  You can then slide the rest of the knights back to the front of the path (squares 5, 7, and 1).  Now bring out the white knight again, so it's now at the end of the group of four knights (at square 4).
  • 11 of 15: Repeat, and you'll eventually be able to move the knights to their destinations.  Read on if you need an explicit solution:
  • 12 of 15: Move 6 to 4, 4 to 10 to 2, 1 to 4 to 10, 7 to 1 to 4, and 5 to 7 to 1.
  • 13 of 15: Move 4 to 6, 1 to 7 to 5, 10 to 4 to 1 to 7, and 2 to 10 to 4 to 1.
  • 14 of 15: Move 6 to 4 to 10 to 2 to 8, 1 to 4 to 10 to 2, 7 to 1 to 4 to 10, and 5 to 1 to 7 to 4 to 6.
  • 15 of 15: Finally, move 10 to 4 to 1 to 7 to 5, 2 to 10 to 4 to 1 to 7, and 8 to 2 to 10 to 4 to 1.