The Hardest Chess Puzzle - Puzzle Prime

White to move and mate in 6. Can you tell what is so unusual about this puzzle?

Zimbecks Chess Puzzles by Zimbeck, David

Can You Solve The Hardest Puzzles On ?

Schach Box - Chess Box - Secret Wooden Box

The Ultimate Chess Puzzle Book - Kindle edition by Emms, John. Download it once and read it on your Kindle device, PC, phones or tablets. Use features

The Ultimate Chess Puzzle Book See more

Nunn, John: : Books

John Nunn's Chess Puzzle Book: Test and Improve Your Over-the-Board Decision-making

Chess Basic Tactics Part 5

Puzzle Archives - Puzzle Prime

What are some of the toughest chess puzzles? - Quora

HARDEST Chess Puzzles on Chess.com! I Solving 3000+ rated puzzles