To compare word games by pace and age suitability, and see which reward speed versus vocabulary, take a look at the word games at games for children.
Slower, more thoughtful word games suit older children and adults who like to plan a high-scoring play. These reward a wider vocabulary and a bit of tactics, so they are better kept for players who enjoy taking their time. If you are buying for a mixed-age family, a fast game is usually the safer bet, since it keeps the youngest involved rather than left behind.
To see jigsaws grouped by piece count and theme, from first puzzles for toddlers to harder pieces for adults, take a look at the jigsaw collection at
games for children.
The Genius Square has become a favourite for families and solo puzzlers who want a game that sets up in seconds and plays differently every time. You roll the seven dice, place a blocker on each grid square the dice point to, then fit the nine coloured shapes into the space that is left. There is always at least one solution, and often more than one, so nobody gets stuck on an impossible board.
Piece count is the first thing to settle when you choose a jigsaw. Puzzles for young children usually have large pieces and a low count, so small hands can manage them, while 500 and 1,000-piece puzzles suit older children and adults who want a longer sit-down. If you are buying for someone new to jigsaws, it is better to start lower and work up than to hand over a 2,000-piece puzzle that never gets finished.
Difficulty is worth checking before you buy. A puzzle that is too easy gets solved once and put away, while one that is far too hard can end up back in the box. Many puzzles carry a difficulty rating, and it helps to match that to how much time the person likes to spend. Someone who wants a ten-minute coffee-break challenge needs something different from a person happy to pick away at the same puzzle over several evenings.