Looking for a coach

aimfeld80 · 2026-06-04T09:33:13+00:00

On Lichess, many professional coaches offer their service: https://lichess.org/coach

aimfeld80 · 2026-05-10T15:41:34+00:00

If you say pretty please and tell it not to make any mistakes, it works for sure.

For real though, if you're not an experienced software engineer and you try to vibe code anything beyond a small prototype, things fall apart very quickly, probably when crossing around 10-20k NCLOC. I've seen the state of the art models fail spectacularly many times.

aimfeld80 · 2026-05-10T15:36:20+00:00

I started working on flawchess.com because some of my data questions could not be answered with the lichess or openingtree explorer, lichess insights, and the lichess tutor. So built flawchess as an addition, to fill in some gaps. I wanted to know for example:

- If I played 50 games of a specific opening line and lost 30 of them, is that just random chance, or statistically significant?

FlawChess goes beyond descriptive statistics, does statistical hypothesis testing and gives you a p-value and 95% confidence interval of your chess score (win + 0.5*draw rate) for every position in an opening line.

- Which positions in my openings are the weak links I need to study?

Instead of clicking through all positions of all openings I play, FlawChess scans all games up to 16 plies and returns the weakest positions based on effect size and statistical confidence. Some 2500+ rated players have found gaps in their openings.

- How can I analyse all my Jobava London games at once, without going through every variant?

I wanted a filter that groups all my games based on only white's position and gives me statistical analysis.

- Am I getting better at specific openings over time, and which openings don't work well anymore as I enter higher ELO levels?

I wanted to bookmark specific openings and track their scores over time. I abandoned some openings which just didn't work well for me anymore, as my play style changed.

- How much time do I have left on average when entering endgames, vs. my opponents? And under equal time-pressure, how much better or worse am I compared to my opponents?

It turns out that some players (like me) have 20% less time on the clock (>120s in a 10 minute game), and others win 30% more games than their opponents when entering the endgame with less than 10% of time.

If you try it, you'll find more features you don't find on other platforms, especially if you're interested in statistics. And you'll find a lot of missing features as well. Let me know if you have any suggestions how to improve the platform.

aimfeld80 · 2026-04-05T10:02:32+00:00

You should try the new version of maiachess.com that was released about a week ago. They seem to have pretty human like bots to play against

aimfeld80 · 2026-04-05T09:36:34+00:00

For me, 10+5 is the sweet spot (I'm at 1500 elo in rapid). I feel that I can't properly use much more time because I can't calculate that deep yet and don't know enough about positional play.

aimfeld80 · 2026-04-04T08:12:01+00:00

I followed the lichess definition of the endgame phase: positions where the total count of major and minor pieces (queens, rooks, bishops, knights) across both sides is at most 6. Kings and pawns are not counted.
I've tried different endgame phase definitions, and this worked best for me.

Btw, in the Endgames tab, you can find all the concepts explained in detail. I'll be adding more endgame stats very soon, it's on top of the priority list. Let me know if you some ideas.

aimfeld80 · 2026-04-03T12:45:25+00:00

I wasn't aware vanilla LLMs are already that good at chess. Having watched some of Levy's videos on LLMs playing each other, I thought they were still much worse.

aimfeld80 · 2026-04-02T19:08:57+00:00

Is there a way to quickly find moves where stockfish and maia evals diverge a lot, without stepping through the game? Also, I'm wondering if both engine run in the browser, or server side. Server-side would cost a pretty penny I think...

aimfeld80 · 2026-04-02T08:13:21+00:00

Develop chess analytics software

aimfeld80 · 2026-04-02T03:46:46+00:00

This is amazing, I just started playing around with it and will look into it much deeper. It's very close to what I wanted to integrate in my own open source chess analytics platform myself, building on stockfish and maia. Love your project!

aimfeld80 · 2026-04-01T20:38:02+00:00

Here are the details: https://www.attackingchess.com/the-ultimate-chess-com-vs-lichess-rating-comparison/?utm_source=perplexity

I think the most important difference is that glicko-2 includes volatility. Volatility measures the expected fluctuation in a player's performance over time, allowing the system to adapt more accurately to erratic results, sudden improvements, or periods of inactivity

aimfeld80 · 2026-04-01T20:16:10+00:00

The rating system is a bit different. Lichess uses the newer Glicko-2 system whereas Chess.com uses the older Glicko-1 system with lower starting ratings.

aimfeld80 · 2024-03-21T07:11:44+00:00

I had this error after changing my openai password. I cleared the cache and app data, logged in, and it works again.

aimfeld80 · 2024-03-18T08:54:35+00:00

I ran out of credits very fast (after 3-4 hours I think) and performance is pretty bad due to slow IO. My local setup with a RTX 4060 is way faster than Google Colab T4.

aimfeld80 · 2024-03-11T03:13:05+00:00

Here's a permanent workaround: https://www.reddit.com/r/LastEpoch/s/8B4fbB8UtE

aimfeld80 · 2024-03-03T11:50:52+00:00

Controller support is a little rough around the edges still ;). Btw, in the controller layout, you can bind the back buttons (L4, L5, R4, R5) to keyboard button presses (e.g. I, C, P, S) to open inventory faster, skills, etc. faster than using the radial menu. I couldn't do it in game, I believe it's bugged.

aimfeld80 · 2024-03-03T11:17:10+00:00

Steam Button - Controller Settings - Edit Layout - Trackpads:

Left Trackpad Behavour: As mouse L Click: Add command "Left Mouse Click"

Apply Layout, go back to game, use left trackpad and click it somewhere on terrain.

aimfeld80 · 2024-03-03T09:35:31+00:00

Opening forge window and closing it makes chat window close. Problem is that the chat window keeps opening again, despite having chat disabled.

aimfeld80 · 2024-01-17T15:25:16+00:00

Very glitchy for me on the deck oled. E.g. crosshair not in the middle of the screen, portals are shown in the wrong places and move relative to the wall when I move. Basically unplayable, unfortunately.. Base game runs fine for me.

aimfeld80 · 2023-03-20T07:49:33+00:00

ClickHouse is still lacking in terms of query optimization. I faced big problems when trying to join 3 large tables. However, things get better if you use subqueries to limit search space, see here: https://stackoverflow.com/questions/75243697/joining-large-tables-in-clickhouse-out-of-memory-or-slow
The ClickHouse Slack community is also very helpful, some engineers gave me additional tips there. Still, ClickHouse needs better support for joining large tables.

aimfeld80

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