Mahjong Techniques Explained #6

This video aims to explain Riichi Mahjong techniques in a short and concise video that hopefully helps people improve their game.
This video will focus on when to open your hand. Feel free to leave any questions in the comments!
00:39 Why open your hand
02:30 Opening your hand - Yakuhai pon
02:49 Opening your hand - Open tanyao
03:03 Opening your hand - Honitsu/Chinitsu
03:25 Opening your hand - Toitoi
03:56 Opening your hand - Playing with bad shapes
04:31 Opening your hand - Keiten
05:17 Opening your hand - Preventing ippatsu
05:58 Opening your hand - Shifting haitei
06:42 Asapin's 5 melding techniques
07:04 Dora Dora Dash
08:13 Kamicha going for a weird hand
09:05 Elongate the shape
10:20 Meld when cornered
11:18 Chasing after a riichi