Upgrade your tactics at half price: “Cross-Cut Workshop” and “Key Concepts in Life and Death: Inside Moves and Under the Stones Techniques” by Richard Hunter are on sale until December 27, a steal at just $2.99 each. Learn how to handle the dreaded cross-cut, and start recognizing killable shapes and under-the-stones situations. https://gobooks.com/#sale The discounted price is available both when buying directly on the web as well as when buying in-app in SmartGo One. #SmartGo #baduk #gobooks