I'm not completely convinced by this comparison between blind chess and prompting LLMs.
In blind chess you get deterministic information about the state of the board: each mental update to your board model can be precise, and you have the full state at every point in time.
LLMs are notoriously non-deterministic, and even at temperature zero you still can't predict exactly where the weights will take you next.
I suppose you can get closer to deterministic if you adopt a prompting style where you almost dictate every line of code, but at that point the coding agent is more of a typing assistant.
The productivity benefits of coding agents unlock themselves when you figure out how to turn short prompts - "add tests that exercise the registration form and check the happy path and all failure states" - into larger changes.
If you're completely blind to the results of those you're going to end up with a system you don't 100% understand very quickly. In blind chess terms you'll no longer know the positions of every piece on the board.
I agree with your take, particularly because of this line in the article:
| the skills that define a strong blindfold chess player are the same as those of a programmer who can thrive behind a Claude Code terminal whilst not reading nor writing any code.
If you're actually not reviewing the outputs, you're just getting a fuzzy description of the state of the chessboard.
But I (and everyone I work with) use Claude Code in a workflow where I -do- review the outputs, or at least I make an honest effort to try. Rather than blindfolded, I think bullet (1-minute) chess is a fairly good analogy for this: you have all the info you need to keep your mental model up to date with reality, but the pace of change is too fast to do a good job unless you have a lot of preexisting chess expertise.
[−]danielovichdk · 2026-08-30 Sun 14:28 UTC ·
link
You learn a lot more by reading code than writing it.
So reading the output i believe is an immensely big gift by an LLM, because if you actually take note - and of course know your skills - then ot becomes such a great pal to work with.
I like reading what the LMM gives me, not always, but a lot of times.
a lot of people get stuck, or code up a naive brute force algorithm and call it a day, nothing intrinsically forces a coder that refuses to look at the work of others to write better code.
As long as the literature contains insights a reader isn't aware about, reading the literature is low-hanging fruit compared to having to derive all the things yourself.
As soon as the literature no longer contains insights, it becomes more productive to explore mathematics oneself by trial and error.
Organized education will model this on a topic by topic basis: during class you're handed the more valuable insights on a silver platter, during an exam you are prevented from looking at your textbook.
Every time you read a chapter and do the exercises it's a small simulacrum of catching low hanging fruit followed by making sure you can derive similar statements with trial and error for fixing any gaps. The trial and error while you do problems does improve your intuition, but only trial and error is like having every student redevelop the frontier starting from antiquity.
For most of us, writing code is the way to carve out intuition into an artifact. But, I have noticed some people are able to read deeply - and by that I mean, reverse the code to understand the intuition that brought it to life. This is a rare skill and I dont have it, but some do. Not just for code, but also for any book - fiction or non-fiction - some are able to deconstruct the scenarios much better than others, and in that sense understand what they read.
I feel one need to also have developed the intuition by writing lots of code for reading to be really effective.
An an analogy I’m reading a lot of German those days as I’m aiming to become fluent, and it’s very effective to improve only because I spend so much time developing a the intuition by going through the whole grammar, forcing myself to write, forcing myself to speak, etc. Doing only the reading improves your pattern recognition, but doesn’t make you go as deep as one who also writes and speak. If you combine the different aspects they reinforce each other and you progress way faster
IMHO the thrust of the article feels a bit forced, but LLM = Blindfold chess is not what the author is saying:
> Thus in many ways programming with AI is the opposite of blindfold chess: you don't have to pay attention every turn, you don't have to remember what the important pieces are, the details of the tactical relationships (such as code interfaces and APIs).
That sentence was awkward. Maybe even a typo? The following sentences to the one you just quoted ignores that and proceeds to argue FOR blindfolded chess being like programming with LLMs.
The article itself takes several paragraphs to get to the argument it wants to make and then ends having only argued for a few more sentences. No real evidence is provided either.
Well no, it argues that the SKILLS for playing blindfold chess are similar to people who use LLMs to develop code - not that blindfold chess = vibe coding.
And then earlier in the article defines said skills as having a sense of high-level relationships (chunking, positioning, etc) over the board rather than a photographic memory of the board.
But as I said, the whole article feels very fluffy anyway.
LLMs are notoriously non-deterministic, and even at temperature zero you still can't predict exactly where the weights will take you next.
An LLM can be made to be completely deterministic. I use them in this mode so I can reproduce test cases. Of course it requires complete control over the model, etc. but this myth that a computer program is non-deterministic needs to end.
You can 100% predict where the weights “will take you” given a set of inputs.
By "can't predict exactly where the weights will take you next" I meant with your brain. The blind chess analogy suggests you can predict, using your own thought process, the exact output of a prompt.
>Floating point matrix calculations are non-deterministic.
This is not inherent to floating-point math. That actual (true) claim in the article is that different hardware and different hardware configurations produce different results. But deterministic inference is possible, e.g. llama.cpp on CPU is deterministic by default.
>you're going to end up with a system you don't 100% understand very quickly
This has been my experience with all software projects. Even if I wrote all the code, my understanding of how everything works and fits together decays.
Yeah, that's a fair point. I have plenty of older projects where I no longer understand how they work despite having written the code myself.
I guess the key thing is that you need to be able to demonstrate to yourself that you understand the code at least once, because that means you should be able to revise how it works in the future.
You also can't evaluate if a solution is fit for purpose if you don't understand it.
In blind chess you get deterministic information about the state of the board: each mental update to your board model can be precise, and you have the full state at every point in time.
LLMs are notoriously non-deterministic, and even at temperature zero you still can't predict exactly where the weights will take you next.
I suppose you can get closer to deterministic if you adopt a prompting style where you almost dictate every line of code, but at that point the coding agent is more of a typing assistant.
The productivity benefits of coding agents unlock themselves when you figure out how to turn short prompts - "add tests that exercise the registration form and check the happy path and all failure states" - into larger changes.
If you're completely blind to the results of those you're going to end up with a system you don't 100% understand very quickly. In blind chess terms you'll no longer know the positions of every piece on the board.
| the skills that define a strong blindfold chess player are the same as those of a programmer who can thrive behind a Claude Code terminal whilst not reading nor writing any code.
If you're actually not reviewing the outputs, you're just getting a fuzzy description of the state of the chessboard.
But I (and everyone I work with) use Claude Code in a workflow where I -do- review the outputs, or at least I make an honest effort to try. Rather than blindfolded, I think bullet (1-minute) chess is a fairly good analogy for this: you have all the info you need to keep your mental model up to date with reality, but the pace of change is too fast to do a good job unless you have a lot of preexisting chess expertise.
So reading the output i believe is an immensely big gift by an LLM, because if you actually take note - and of course know your skills - then ot becomes such a great pal to work with.
I like reading what the LMM gives me, not always, but a lot of times.
Really? In my experience it's been the opposite. It's like how you can learn more about art by trying to recreate it than just looking.
"You learn a lot more by reading trigonometry than by doing problems"
See how ridiculous that sounds?
As long as the literature contains insights a reader isn't aware about, reading the literature is low-hanging fruit compared to having to derive all the things yourself.
As soon as the literature no longer contains insights, it becomes more productive to explore mathematics oneself by trial and error.
Organized education will model this on a topic by topic basis: during class you're handed the more valuable insights on a silver platter, during an exam you are prevented from looking at your textbook.
Every time you read a chapter and do the exercises it's a small simulacrum of catching low hanging fruit followed by making sure you can derive similar statements with trial and error for fixing any gaps. The trial and error while you do problems does improve your intuition, but only trial and error is like having every student redevelop the frontier starting from antiquity.
For most of us, writing code is the way to carve out intuition into an artifact. But, I have noticed some people are able to read deeply - and by that I mean, reverse the code to understand the intuition that brought it to life. This is a rare skill and I dont have it, but some do. Not just for code, but also for any book - fiction or non-fiction - some are able to deconstruct the scenarios much better than others, and in that sense understand what they read.
An an analogy I’m reading a lot of German those days as I’m aiming to become fluent, and it’s very effective to improve only because I spend so much time developing a the intuition by going through the whole grammar, forcing myself to write, forcing myself to speak, etc. Doing only the reading improves your pattern recognition, but doesn’t make you go as deep as one who also writes and speak. If you combine the different aspects they reinforce each other and you progress way faster
> Thus in many ways programming with AI is the opposite of blindfold chess: you don't have to pay attention every turn, you don't have to remember what the important pieces are, the details of the tactical relationships (such as code interfaces and APIs).
The article itself takes several paragraphs to get to the argument it wants to make and then ends having only argued for a few more sentences. No real evidence is provided either.
And then earlier in the article defines said skills as having a sense of high-level relationships (chunking, positioning, etc) over the board rather than a photographic memory of the board.
But as I said, the whole article feels very fluffy anyway.
You can 100% predict where the weights “will take you” given a set of inputs.
Do you mean reproduce?
Sorry it's just if you are saying what your statement implying then either the model is very simple, or you've figured out something incredible
[0] https://arxiv.org/html/2506.09501
This is not inherent to floating-point math. That actual (true) claim in the article is that different hardware and different hardware configurations produce different results. But deterministic inference is possible, e.g. llama.cpp on CPU is deterministic by default.
This has been my experience with all software projects. Even if I wrote all the code, my understanding of how everything works and fits together decays.
( See the Forgetting Curves https://en.wikipedia.org/wiki/Hermann_Ebbinghaus )
I guess the key thing is that you need to be able to demonstrate to yourself that you understand the code at least once, because that means you should be able to revise how it works in the future.
You also can't evaluate if a solution is fit for purpose if you don't understand it.