I love crossword puzzles. They are considered a word puzzle that can either be in a form of a squiare or rectabgle
Same here, I like them a lot.
It took me awhile to figure out how they worked. Written left-right and from top-bottom
Yeah they have a bit of a learning curve.
In the United States the shaded squares in the puzzle are typically limited to about one-sixth of the total puzzle
Are they different not in the US?
with a higher percentage of shaded squares (around 25%), leaving about half the letters in an answer unchecked. For example, if the top row has an answer running all the way across, there will often be no across answers in the second row.
Another tradition in puzzle design (in North America, India, and Britain particularly) is that the grid should have 180-degree rotational (also known as "radial") symmetry, so that its pattern appears the same if the paper is turned upside down
Each decoder incorporates the derived likelihood estimates from the other decoder to generate a new hypothesis for the bits in the payload. Then they compare these new hypotheses. This iterative process continues until the two decoders come up with the same hypothesis for the "m"-bit pattern of the payload, typically in 15 to 18 cycles.
An analogy can be drawn between this process and that of solving cross-reference puzzles like crossword or sudoku. Consider a partially completed, possibly garbled crossword puzzle. Two puzzle solvers (decoders) are trying