Games for the Brain: Online puzzle mini-games website

Games for the Brain doesn't have a huge number of games, but it basically covers the popular types of puzzle games: Sudoku, Reversi, Gomoku, Checkers, Chess, "Spot the Difference," Minesweeper, Jigsaw Puzzles, Memory Games, Pipe Connections, Card Matching, and more. There are also some knowledge-based games like crossword puzzles and guessing flags, which I think is already quite diverse. Moreover, games like Sudoku and Minesweeper have always been popular and classic brain teasers, and now you can play them without needing to download a client, which is pretty cool! You can simply click on the game links on the website to start playing. However, some games without time limits can feel a bit boring, and at the end, getting a high score seems to give you a code that can be used to "claim rewards" in the prize room.