Here's the game Surma (white) vs Park. They had one of those complicated modern 3-3 invasion josekis which turned into a big fight which Park won. Variations are from FineArt (Jueyi) on Fox and me with LZ. Highlights:
- a14 hane should h15 atari in middle, it's ok to not set up seki in corner because even if you die attacking top with l17 is big compensation and black has to watch his libs. f19 should also h15.
- Park's h19 should be d18
- c19 big (-40%) mistake, should be h16
- but Park's h14 almost returns the favour (-26%) as it allows W to almost revent with the pleasing atari. Instead set up corner seki and extend at h15 to make nice eyeshape. FineArt agrees.
- Surma j15 overplay. He presumably wanted black to directly atari without pushing once, so when black tried to improve on that resisted, but submitting was wiser. h12 turn still decent after.
- k15 mistake is an interesting shape lesson I've seen before. Locally the move you want is j16 comedy empty triangle because it sets up the snapback shortage of libs at h17 which gives black a problem in taking a liberty for the corner semeai. LZ says best order is to probe first in corner, black ignores to capture outside 2 stones but their aji means white has effectively captured the corner because if he tries to make the seki then white breaks out k16.
- r17 3-3 greedy as gote, centre fight balance of power bigger
- d11 wrong shape, but it's hard fighting anyway and Park goes for the jugular.
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