A chess knight is on the star (*) key of a touch tone telephone. How can the knight complete a knight's tour of the touch tone keys, landing on each of the other keys (# and 0-9) exactly once? Eleven moves must be made to complete the tour.
2007-04-10 06:46:27 · 2 answers · asked by Anonymous in Games & Recreation ➔ Board Games
Now that the puzzle has been solved, would the following grid have helped...?
1 ←→ 8 ←→ 3
↑ ↑
↓ ↓
6 ←→ 0 ←→ 4
↑ ↑
↓ ↓
7 ←→ 2 ←→ 9
↑ ↑
↓ ↓
* ←→ 5 ←→ #
2007-04-11 11:07:23 · update #1
Retry that grid:
1 ←→ 8 ←→ 3
↑ ↑
↓ ↓
6 ←→ 0 ←→ 4
↑ ↑
↓ ↓
7 ←→ 2 ←→ 9
↑ ↑
↓ ↓
* ←→ 5 ←→ #
2007-04-11 11:11:27 · update #2
Ah, close enough. Arrows are meant to line up on the right side - 3 connects to 4, 4 to 9, 9 to #.
For anyone who tried to find an answer but was unsuccessful, do you see the idea behind the grid? Finding a route is a snap now, right? (In fact, there are exactly two solutions.)
2007-04-11 11:16:30 · update #3
OK, I see a typo in my grid. Here is the correction. Man, an editing function for Additional Details would sure be nice...
1 ←→ 8 ←→ 3
↑ ↑
↓ ↓
6 ←→ 0 ←→ 4
↑ ↑
↓ ↓
7 ←→ 2 ←→ 9
↑ ↑
↓ ↓
# ←→ 5 ←→ *
2007-04-11 11:46:24 · update #4