Ciro Santilli @cirosantilli 37

git clone https://github.com/fchollet/ARC-AGI
cd ARC-AGI
git checkout 399030444e0ab0cc8b4e199870fb20b863846f34
git clone https://github.com/michaelhodel/arc-dsl
cd arc-dsl
git checkout 635de4902a5fb4e376f27333feaa396d3f5dfdcb
python main.py

Unfortunately this blows up on Ubuntu 25.04 on test_mpapply apparently due to a Python 3.12 issue and the pull request github.com/michaelhodel/arc-dsl/pull/7 has been ignored for more than one year, so the project is largely dead.

 Read the full article

Benjamin Crouzier by

Ciro Santilli 37 2025-10-18

 View more

The rich guy behind Tufa Labs:

github.com/pinouchon
pinouchon.github.io
www.youtube.com/benjamincrouzier He's also a wooden block fanatic. Funnily Ciro Santilli had seen his channel before knowing he was rich. www.youtube.com/watch?v=5HyYyXHSW74 shows probable home and could likely be geolocated.
tufalabs.ai/team.html describes how he made his money:
Benjamin has a masters in Computer Science and applied ML to quant finance previously.

 Read the full article

Python 3.12 by

Ciro Santilli 37 2025-10-18

 View more

www.python.org/downloads/release/python-3120/

 Read the full article

Commonwealth Fusion Systems by

Ciro Santilli 37 2025-10-18

 Read the full article

Python version by

Ciro Santilli 37 2025-10-18

 Read the full article

Tufa Labs by

Ciro Santilli 37 Created 2025-10-18 Updated 2025-12-01

 View more

tufalabs.ai/team.html

 Read the full article

Independent AI research lab by

Ciro Santilli 37 Created 2025-10-18 Updated 2025-12-01

 View more

Cool rich dudes tended to create these a lot during the great AI boom.

 Read the full article

Updates / ARC-AGI-2 by

Ciro Santilli 37 Created 2025-10-18 Updated 2025-10-21

 View more

github.com/arc-dsl-2/arc-dsl-2

I've created a quick fork of ARC-DSL which defines a hand crafted Domain Specific Language (DSL) approach to help solve ARC-AGI problems.

I basically just merged outstanding pull requests on the original repo that were needed to make things run.

It would be cool to see if those rules also solve ARC-AGI-2 problems well, but lazy now.

ARC-AGI-2 is a very interesting benchmark which mixes some symbolic and other visual elements, and is readily solvable by non-expert humans, but has so far resisted transformers to a large degree.

Part of me would like to focus more on less visual aspects of AI, but it is still of interest.

It is funny how many early (semi)-retired fintech/bigtech bros that are interested in the project, I saw several of them on the forums.

I'd be tempted if I were in that position too I must confess. Maybe in 15 years time for me the way things are looking.

Kudos to these people who do something cool and open when they don't need money: www.reddit.com/r/Fire/comments/15x4w7r/comment/jx7dn16/ It is also the case of Jimmy Wales from Wikipedia for example, who used to work in finance.

Announcements:

 Read the full article

Laser Kiwi flag by

Ciro Santilli 37 2025-10-14

 View more

 Read the full article

New Zealand flag debate by

Ciro Santilli 37 2025-10-14

 View more

Video 1.

New Zealand Flag Debate by

. Source.

 Read the full article

New Zealand by

Ciro Santilli 37 2025-10-14

 View more

Video 1.

Why New Zealand Fired its Official Wizard by Qxir

. Source.

 Read the full article

aviad12g/ARC-AGI-solution by

Ciro Santilli 37 2025-10-14

 View more

github.com/aviad12g/ARC-AGI-solution

Interesting looking repo with optional GPU and optional LLM.

It seems to have been tested on something older than Ubuntu 24.04, as 24.04 install requires some porting, started process at: github.com/cirosantilli/ARC-AGI-solution/tree/ubuntu-24-04 but gave up to try Ubuntu 22.04 instead.

Ubuntu 22.04 Docker install worked without patches, after installing Poetry e.g. to try and solve 1ae2feb7:

git clone https://github.com/aviad12g/ARC-AGI-solution
cd ARC-AGI-solution
git checkout f3283f727488ad98fe575ea6a5ac981e4a188e49
poetry install
git clone https://github.com/arcprize/ARC-AGI-2
`poetry env activate`
export PYTHONPATH="$PWD/src:$PYTHONPATH"
python3 -m arc_solver.cli.main solve ARC-AGI-2/data/evaluation/1ae2feb7.json

but towards the end we have:

{
  "success": false,
  "error": "Search failed: no_multi_example_solution",
  "search_stats": {
    "nodes_expanded": 21,
    "nodes_generated": 903,
    "termination_reason": "no_multi_example_solution",
    "candidates_generated": 25,
    "examples_validated": 3,
    "validation_success_rate": 0.0,
    "multi_example_used": true
  },
  "predictions": [
    null,
    null,
    null
  ],
  "computation_time": 30.234344280001096,
  "task_id": "1ae2feb7",
  "task_file": "ARC-AGI-2/data/evaluation/1ae2feb7.json",
  "solver_version": "0.1.0",
  "total_time": 30.24239572100123,
  "timestamp": 1760353369.9701269
}

Task: 1ae2feb7.json
Success: False
Error: Search failed: no_multi_example_solution
Multi-example validation: ENABLED
Training examples validated: 3
Candidates generated: 25
Validation success rate: 0.0%
Computation time: 30.23s
Total time: 30.24s

so it failed.

Let's see if any of them work at all as advertised:

ls ARC-AGI-2/data/evaluation/ | xargs -I'{}' python3 -m arc_solver.cli.main solve 'ARC-AGI-2/data/evaluation/{}' |& tee tmp.txt

and at the end:

grep 'Success: True' tmp.txt | wc

has only 7 successes.

Also weirdly

grep 'Success: True' tmp.txt | wc

only has 102 hits, but there were 120 JSON tasks in that folder. I search for the missing executions:

diff -u <(grep Task: tmp.txt | cut -d' ' -f2) <(ls ARC-AGI-2/data/evaluation)

The first missing one is 135a2760, it blows up with:

ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable

and grepping ERROR gives us:

ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type SizePredicate is not JSON serializable
ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type ndarray is not JSON serializable
ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type ndarray is not JSON serializable
ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type VerticalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type VerticalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type ndarray is not JSON serializable
ERROR: Solve command failed: Object of type VerticalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type ndarray is not JSON serializable
ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type HorizontalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type VerticalLinePredicate is not JSON serializable
ERROR: Solve command failed: Object of type VerticalLinePredicate is not JSON serializable

Reported at: github.com/aviad12g/ARC-AGI-solution/issues/1

 Read the full article

Project Euler problem 910 by

Ciro Santilli 37 Created 2025-10-14 Updated 2025-11-30

 View more

projecteuler.net/problem=910

Numerical solution from github.com/lucky-bai/projecteuler-solutions/issues/102:

547480666

Programs:

euler/910.py

A(x) = x + 1
Z(u)(v) = v
S(u)(v)(w) = v(u(v)(w))

Let's resolve the second example ourselves:

S
  (S)
  (S(S))
  (S(Z))
(A)
(0)

S
(S)
(
  S
  (S(S))
  (S(Z))
)
(A)
(0)

S
(S(S))
(S(Z))
(
  S
  (
    S
    (S(S))
    (S(Z))
  )
  (A)
)
(0)

S
(Z)
(
  S(S)
  (S(Z))
  (
    S
    (
      S
      (S(S))
      (S(Z))
    )
    (A)
  )
)
(0)

S(S)
(S(Z))
(
  S
  (
    S
    (S(S))
    (S(Z))
  )
  (A)
)
(
  Z
  (
    S(S)
    (S(Z))
    (
      S
      (
        S
        (S(S))
        (S(Z))
      )
      (A)
    )
  )
  (0)
)

S
(S)
(S(Z))
(
  S
  (
    S
    (S(S))
    (S(Z))
  )
  (A)
)
(0)

TODO: how long would this be?

So we see that all of these rules resolve quite quickly and do not go into each other. S however offers some problems, in that:

C_0 = Z
C_i = S(C_{i-1})
D_i = C_i(S)(S)

So we see that D_i goes somewhat simply into C_i, and C_i is recursive giving:

S^i(Z)

Calculate the nine first digits of:

D_a(D_b)(D_c)(C_d)(A)(e)

Removing D_a:

S^i(Z)S)(S)(D_b)(D_c)(C_d)(A)(e)

 Read the full article

Project Euler problem 254 by

Ciro Santilli 37 2025-10-14

 View more

projecteuler.net/problem=254

 Read the full article

Project Euler problem 1 by

Ciro Santilli 37 2025-10-14

 View more

projecteuler.net/problem=1

Solution:

Solutions to the ProjectEuler+ version:

euler/1.py

The original can be found with:

printf '1\n1000\n' | euler/1.py

 Read the full article

Project Euler problem zero by

Ciro Santilli 37 Created 2025-10-14 Updated 2025-10-27

 View more

This was a registration CAPTCHA problem as of 2025:

Among the first 510 thousand square numbers, what is the sum of all the odd squares?

Python solution:

s = 0
for i in range(1, 510001, 2):
    s += i*i
print(s)

At: euler/0.py

 Read the full article

Collatz cycle length lower bound by

Ciro Santilli 37 2025-10-14

 View more

www.sciencedirect.com/science/article/pii/0012365X9390052U?via%3Dihub

 Read the full article

 There are unlisted articles, also show them or only show them.