It only has 153 pieces but with irregular edges and tessellated pieces it may still tie you in knots! A fun challenge for expert jigsaw fans. The perfect present for somebody who finishes their puzzles too quickly! Why you'll love this puzzle: It's a super tricky, Celtic knot work inspired piece It makes a great gift for expert puzzlers or anybody who likes a challenge This high quality, traditional, wooden jigsaw puzzle can be done time and again and make it a treat to complete. PLEASE NOTE: THE WC2 IS THE EXTRA DIFFICULT SIZE. THE EXTRA DIFFICULT PUZZLE HAS REPETITIVE PIECES AND DOES NOT CONTAIN ANY OF WENTWORTH'S TRADEMARK WHIMSY PIECES.