The player may or may not be given a list of words to search for. Usuaully players are in fact given a list, but this is not absolutely necessary _ in fact the puzzle is much more difficult in the absence of such a list. Puzzle designers who choose not to provide a word list, do usually give at least a clue as to the type or subject of the words in the puzzle.
Theme_based puzzles : Choose a topic of interest to the person who will be receiving the puzzle. For example, if Grandpa loves to garden, use gardening or vegetables as the topic. Brainstorm to make a list of both long and short words related to the theme. For gardening, list soil, seed, plant, hoe, weeds, tomatoes, cucumber, radish, rain, sun and more. Place the words in a rectangular space of graph paper. Place the longest words first. Decide how large the puzzle will be and make sure your words fit inside that space. Make a list of the words as you hide them. Double_check the puzzle. Make your puzzle into a gift. Type the letters and word list on the computer and add some appropriate clip art. Or simply cut out the puzzle from the graph paper page, glue it onto a blank page, and write the word list on that paper. Tuck the puzzle inside a card or just hand it to the lucky recipient.