I was looking for a very easy cut to do this one. Decided to try 56 curvy, figuring with only 56 pieces it couldn't be very hard. Wrong! This puzzle would be a challenge with any cut. no matter how few pieces!
That's true! I did it on 12 square, a cut that usually takes me under 30 seconds, and it took over a minute. Even my favorite cut (48 USA) took me nearly 1:30.