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Crossword puzzles (Posted on 2019-05-21) Difficulty: 5 of 5
Crossword puzzles use a grid of black and white squares that traditionally obeys the following rules.

1. Every word (a string of consecutive white squares in a row or column) has at least 3 letters (white squares). Each letter is part of a word going across and a word going down, and there are no 2-letter words.
2. The grid is symmetrical. It is the same upside-down.
3. The grid is connected. Between any two white squares, there is a path of white squares that only goes horizontally and vertically.

What is the most words possible in a crossword puzzle with 15 rows and 15 columns? Find a 15*15 crossword grid with the maximum number of words.

No Solution Yet Submitted by Math Man    
Rating: 5.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Two Attempts | Comment 2 of 10 |
123456789012345
===============|
OOO OOO OOO OOO|1
OOO OOO OOO OOO|2
OOO OOO OOO OOO|3
 OOO  OOO  OOO |4
 OOO  OOO  OOO |5
  OOO OOO OOO  |6
OOO OOO OOO OOO|7
OOO OOO OOO OOO|8
OOO OOO OOO OOO|9
  OOO OOO OOO  |O
 OOO  OOO  OOO |1
 OOO  OOO  OOO |2
OOO OOO OOO OOO|3
OOO OOO OOO OOO|4
OOO OOO OOO OOO|5

54 ACROSS
34 DOWN
--
88 (S. Lord 5/28/19)
--------------------------
123456789012345
===============|
OOO OOO   OOOOO|1
OOO OOOO OOOOOO|2
OOO OOOO OOOOOO|3
OOOOOO OOO  OOO|4
OOOOO OOOOOO   |5
   OOOOOO OOOOO|6
OOOO OOO OOOOOO|7
OOO OOO OOO OOO|8
OOOOOO OOO OOOO|9
OOOOO OOOOOO   |0
   OOOOOO OOOOO|1
OOO  OOO OOOOOO|2
OOOOOO OOOO OOO|3
OOOOOO OOOO OOO|4
OOOOO   OOO OOO|5

42 ACROSS
44 DOWN
86 (J. Krozel, NYT, 12/23/08)

For lovers of palindromes, visit here, and, know also: Rats live on no evil star. 

Edited on June 1, 2019, 7:35 pm
  Posted by Steven Lord on 2019-05-28 11:14:16

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