I know the major mistake I made, which wasn't sealing that top right part off late in the game. I think that's really what the deciding factor in this game was.

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Slava Ukraini!

9: The slide may be premature. Usually, the 3-3 invasion hurts him more than the slide, so you wait until you know which one you will prefer. The down side of a 3-3 invasion is that he gets a wall on the outside which can cause you trouble later. But if your nearby groups are strong enough, it doesn't matter so you prefer the 3-3 to the slide.

Since you are committing yourself to a running attack on the next move, it is quite possible that your 6th-rank stones will become strong enough in the ensuing fight such that you can ignore a wall that he gets after a 3-3 invasion.

19: Too loose. When the opponent attaches 1-on-1, extend, or hane,
(or tenuki).

23: See what I mean? You are getting stronger here. Now a 3-3 invasion may well be better than the slide.

25: Now the slide is definitely misplaced.

35: Maybe high 2-space pincer? It would work better with your strength over on the left.

41: What are you trying to do here? That Q16 stone is weak. It is completely overshadowed by his nearby stones and should be abandoned ( or, well, save for ko threats). But you cannot acconplish anything with it.

47: F16. Or F18 if you feel that you absolutely must kill. Why give yourself a weak stone?

Wife says dinner is ready. Gotta go.

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Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207

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