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There are clearly some differences between the two puzzles, but some things remained the same, like the intricate mesh of strings, remarkably untangled, as they stretch from one end of the puzzle to the opposite side, as if defying logic. That's the most common characteristic between the two puzzles - So similar, and yet so different.

Now, to the differences: First, the overall shape of both puzzles is what stands out immediately. The first Brainstring was basically a cube, while the newer version is a truncated octahedron, which is visually more attractive. The number of total elastic strings is surprisingly the same, twelve, although the arrangement is different (three per face on the Advanced version and four per face on the Original version). Another welcome improvement over its predecessor is the inclusion of colored strings, which is easier to distinguish from inside the puzzle's transparent surface. The aspect of the pegs also took an overhaul, now looking more like a porcupine, adding a more stylish and bold visual effect.

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There are three main patterns you can attempt when solving the Brainstring Advanced, although you can create your own: The puzzle already comes solved in one of them, which is three of the same colored pegs on each face. You can revert to this pattern when you try any of the others. Another pattern is to have any three different colored pegs on each surface, and finally, any two of the same colored pegs on each surface. All patterns require you not to leave any entangled strings.

I found the difficulty level between the two puzzles about the same. In other words, expect any of the two puzzles to be quite challenging, no matter which pattern you choose to solve first. When you first attempt to solve the puzzle, it looks quite confusing and it's hard to understand what you're supposed to do with the elastic strings. There are two opposite faces where the strings can cross paths, but there's no mention in the rules about how many strings you can maneuver at any given time. For that reason, take it as a clue that you can manipulate as many as you can handle. Be careful though, because it's very easy to lose track of the strings you have out of place and, before you know it, you'll have an entangled mess difficult to get out of. Start with two strings at a time, and as you gain confidence, you can add more strings to your juggling.

Closing Comments:

The Brainstring Advanced is definitely a great improvement from the first version. Its design is more attractive, but above all, it stayed true to the original concept - A fascinating puzzle like no other, perfect for the whole family to try. You won't regret it, that I can promise you.

Availability: The Brainstring Advanced is available at PuzzlesdeIngenio.com, with worldwide shipping available.