Here is the recommended description of the free educational games for children, emphasizing their child-friendly, healthy, no-login, and puzzle-solving nature, as well as their ability to enhance thinking skills and foster interest:
Feel free to explore these free educational games for children! We have gathered and organized a collection of green, healthy, and free games that are specifically designed for kids. These games require no downloads and can be played online. Rest assured, they provide a safe and non-violent gaming experience, focusing on puzzle-solving and intellectual development.
- BoxPusher : This classic puzzle game challenges children to solve puzzles by moving boxes to designated positions. With minimalist 3D graphics and animations, it offers a visually pleasing experience.

- Tenacity: Exploring the Unknown Planets: This upgraded version of the box-pushing game puts children in control of robots on an unknown planet. Their mission is to explore, harvest resources, and, if possible, successfully leave the planet.

- Card Matching Game: Also known as Concentration or Memory Game, this classic card-flipping game tests children’s memory skills. The objective is to flip two cards at a time and find all the matching pairs within a specified number of moves.

- Mathematical Magic Square: In this arithmetic game, children need to fill a magic square using 9 digits, ensuring that the mathematical calculations yield correct results. Each digit can only be used once.

- Lights Out : This engaging puzzle game challenges children to turn off all the lights on a grid. By clicking on a cell, players toggle its state, as well as the states of its neighboring cells. The goal is to find the solution by strategically switching the lights off.

- Train Track Maze : In this game, children need to utilize perspective and optical illusions to help a train cross a river across 11 different levels. It encourages critical thinking and problem-solving skills.

These games offer a fun and educational way for children to enhance their thinking abilities and foster their interests. Rest assured, you can let your children play these games, as they are child-friendly, safe, and do not require any login information. Remember to supervise their gaming time and ensure the games are age-appropriate. We hope these games provide both entertainment and learning opportunities for your children!