Great choice of topic again! Could you please in some future contribution discuss what criteria White should consider on which stone to attach. Thanks!
After Black's 3-4 attach and 3-5 connection you are looking at W's 4-3 connection and the 6-4 attachment. But the tiger's mouth 4-2 is another option. I hope you will also explain this and when to play it! 😁
2:30 Yeonwoo, please can you say what if black played C8 (tiger mouth) or D8 to protect the cutting point instead of A,B,C ? Should white play princer at B or C? I'm afraid of the white's cutting point at D5 since the black weakness at C7 has already been protected, but I feel that the princer is rather necessary, otherwise black will be happy to make strong groups on the both sides. PS. Will be continuation of the subject for black B nad C variations? :)