This mathematical brain teaser offers a sudoku-like challenge for puzzle enthusiasts. The set includes a solid wooden playing base and sixteen reversible wooden number tiles. It was developed by Professor Puzzle as part of the Albert Einstein collection, which features a range of complex 3D puzzles and brain games. Suitable for those who enjoy creative thinking challenges, this item makes a practical gift option.

The Einstein Letter Block Puzzle by Professor Puzzle is a wooden brain teaser designed for ages 8 and up. The set contains fourteen precision-cut wooden blocks used to solve twelve distinct spatial challenges. Players arrange the blocks to match specified configurations, developing spatial reasoning and problem-solving skills. This puzzle belongs to the licensed Albert Einstein collection, which features intellectually stimulating 3D puzzles and logic games. The natural wood construction ensures durability for repeated use by both children and adults.