Dieter's umptieth return to Go in 2025

Match 1 against swiss bot 3:

• Lean against the opponent's strong group
• Don't hallucinate
• Beware of big groups with only one eye: they can die

Match 2 against go234

• if it looks slow, it probably is slow
• attack the weakest group
• play on the border of 2 moyos

And shape is a real thing but it's about actually reducing/reinforcing a group to a weak/strong shape, not doing something that looks good.

Match 3

• don't lean against weak stones
• don't play nakade if it doesn't kill
• see the aji in the opponent's framework

Match 4 against 1k 2H

• don't defend alive groups
• find the vital point in a fight
• overall tactical ability and reading

Match 5 against swiss bot 3

• don't invite a cut where the opponent is strong
• tesuji blind spot
• continue playing actively, not complacent

Match 6 against ZN 2d (good match!)

• (tough) tactics: sente because group lives (in ko)
• (tough) tactics: right side of the cut
• hane against attachment

Match 7 against Choun 2d (good match)

• middle game joseki after leaving a variation of a 3-3 invastion
• middle game joseki after a side invasion
• being consistent (but not stubborn): a big group in open space is not easy to attack

Match 8 against odorizhou 1d

• under time pressure, bad decision in a ko fight