第16堂：角上L型死活
https://gogo1.teachable.com/courses/10/lectures/44499415
https://www.101weiqi.com/chessbook/notation/42798/
https://www.101weiqi.com/chessbook/notation/42799/
https://www.101weiqi.com/chessbook/notation/42810/
https://www.101weiqi.com/chessbook/notation/42799/
https://www.101weiqi.com/chessbook/notation/42810/
https://www.101weiqi.com/chessbook/notation/42811/
https://www.101weiqi.com/chessbook/notation/42812/
https://www.101weiqi.com/chessbook/notation/42813/
https://www.101weiqi.com/chessbook/notation/42815/
https://www.101weiqi.com/chessbook/notation/42820/
https://www.101weiqi.com/chessbook/notation/42834/
https://www.101weiqi.com/chessbook/notation/42835/
https://www.101weiqi.com/chessbook/notation/42651/
https://www.101weiqi.com/chessbook/notation/42822/