價格：免費
檔案大小：9.6 MB
版本需求：需要 iOS 11.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
This app will help you train your ability to memorize chess positions. This is an essential ability for visualizing lines.
15,000 positions from high-skill games are included. These positions range from the opening to the endgame.
支援平台：iPhone