Top 9 Challenging Crossword Puzzles

For the word cruncher looking for an expert challenge, this volume has 60 four-star difficulty level puzzles, designed to boggle the mind of the experienced solver.

100 Saturday, extra-tough challenges. As one reviewer noted, "these puzzles are not to be solved, they are to be studied." Miscellaneous knowledge, lots of witty definitions, beautiful interlocks.

Nothing epitomizes crosswords more than The NYTimes Sunday puzzle. This collection of 50 crosswords is filled with the qualities that have made The NYT the standard-bearer in the art of puzzle-making.

Puzzles from various constructors which makes for a variety of construction styles. Some are quite challenging. The durable paper that this book is printed on is very pencil-friendly.

50 puzzles "guaranteed to challenge & tantalize". Easy to read and well laid out, the puzzles are challenging without being insane.

The fourth volume in a series which contains a wide assortment of puzzles. Offers mild warm-ups and over-the-top brainbusters (with a few zany extras thrown in).

50 Sunday-size challenging crosswords.

50 challenging brainteasers from the Los Angeles Sunday Times. "Devilishly difficult".

From Mensa: "A huge selection of crosswords guaranteed to entertain the sharpest minds." 224 pages