This Friday we pose a word problem. A quote from Dr. Martin Luther King has been hidden in this picture. Start at the blue circle, and move horizontal or vertical until you have used all letters. The last symbol is the dot. The green squares represent blanks. No diagonal moves are allowed.
I found this type of puzzle in the Dutch newspaper Algemeen Dagblad
New puzzles are published at least twice a month on Friday. You can check your solution here.
An Alphamatic is a puzzle in which words are part of a calculation. An example is
SEND
MORE
—– +
MONEY
which, if the letters are replaced by the correct digits, forms a correct addition.
A special class are the “double true” alphametics. THese are the puzzles I want to have a look at in this post.
1) I listed one before:
THREE
FIVE
FIVE
SEVEN
TEN
——+
THIRTY
The university of Bieleveldt has a nice list:
2) SEVEN + SEVEN + SIX = TWENTY difficulty: 2
3) EIGHT + EIGHT + TWO + ONE + ONE = TWENTY difficulty: 3
4) ELEVEN + NINE + FIVE + FIVE = THIRTY
5) NINE + SEVEN + SEVEN + SEVEN = THIRTY
6) TEN + SEVEN + SEVEN + SEVEN + FOUR + FOUR + ONE = FORTY
7) FOURTEEN + TEN + TEN + SEVEN = FORTYONE
8) NINETEEN + THIRTEEN + THREE + TWO + TWO + ONE + ONE + ONE = FORTYTWO
9) FORTY + TEN + TEN = SIXTY
This list is, however, not exhaustive. Here are a couple more:
10) THREE + THREE + TWO + TWO + ONE = ELEVEN difficulty: 3
11) ELEVEN + THREE + THREE + THREE = TWENTY difficulty: 4
12) ELEVEN + THREE + THREE + ONE + ONE + ONE = TWENTY difficulty: 4
13) SEVEN + THREE + THREE + TWO + TWO + ONE + ONE + ONE = TWENTY difficulty: 4
14) SEVEN + FIVE + TWO + TWO + ONE + ONE + ONE + ONE = TWENTY difficulty: 3
15) SEVEN + FIVE + TWO + TWO + TWO + ONE + ONE = TWENTY difficulty: 3
I feel there are a couple more lurking out there, but I hope to list more of them in a future post.
They exist in many languages, about a year ago I published some Dutch ones.
New puzzles are published at least once a month on Fridays. You are welcome to remark on the difficulty level of the puzzles, discuss alternate solutions, and so on. Puzzles are rated on a scale of 1 to 5 stars. You can check your solutions here.
This week we have some calculation problems for you.
1) four areas 4×6**/*****
Divide this grid into four equal sized areas, each with the same sum.
2) four areas 4×7**/*****
Divide this grid into four equal sized areas, each with the same sum.
You can check your solutions here.
New puzzles are posted twice a month on Friday. You are welcome to remark on the difficulty level of the puzzles, discuss alternate solutions, and so on. Puzzles are rated on a scale of 1 to 5 stars. You can check your solutions here.
justpuzzles 