Dwyrin

Dwyrin is the Internet identity of a US based amateur high dan who does online teaching and demonstrations of Go games. He generally uploads a video on Monday ('Murder Mondays') and Friday ('Back to Basics') to his youtube channel, and sometimes uploads extra videos. He also streams on twitch on Monday and Wednesday evenings and Saturday nights (US time), around 12-15 hours a week.

Dwyrin has also written a book How to Open Go based on his basics series which was released in April 2023.

Basics

Dwyrin's basics are, non-exhaustively

• first corners, then sides, then center
• territory rather than influence - influence is harder to play with
• protect your weak groups first
  • when "behind enemy lines", defend - usually by jumping across the sector line or making a base
  • weakness depends on proximity of own/enemy stones, clear weak points or cutting points

• make shape and poke at your opponent's shape
• aim for sente - always ask yourself: "do I have to respond here?"
• find the biggest area - an easy heuristic here is the number of empty points between two stones (usually corner positions)
• an enclosure and its extension are miai: if your opponent takes one, you take the other
• when invading, look for multiple options (jumping out, making a base)
• there is no reason to fight. Usually the thing (a stone, a piece of territory) is not worth fighting over. Just take larger points
  • the outcome of a fight is unpredictable; in particular you might lose sente and it's the opponent who takes a large point
  • you can't always back off though: when your opponent does something unreasonable, he shouldn't get away with that easily

He's mildly critical of the new variations introduced by AI bots, notably the early 3-3 invasion, or at least advises against its mindless imitation.

Dwyrin has coined the term winning condition as a mental device for determining your strategy.

Here is a meta-video on his basic series. Some quotes

• "don't rely on a crutch"
• "your opponent will give you many opportunities to show your superior direction of play"

Basics exist on many levels. Here's his video about basics on double digit kyu level: https://www.youtube.com/watch?v=ltGBqeYVf7o