T-041:
V3 C3 lower bound confirmed superseded by T-093
= 4.66001, by the bounds/4.66001/ package of Kleddamag's 17-squares-certified-bound, published untagged on 27 September 2026. It raised the verified bound by exactly 1999/100000 over T-040.
It keeps v1.1.0's checkers byte for byte and combines two completed charge candidates: 224 point, 225 two-of-three, 30 three-of-five, two four-of-seven, 154 weighted-threshold and 254 pairwise-intersecting winning-subset orbits, 7,048 feature images over 20,856 sites, all 86 distinct rules of capacity one, over 2,168 parent-angle intervals with parents of side 461300/466001 in the container 4613/1000. Seventeen cores at the minimum core charge 1000026844 exceed the budget 17000402008 (units of 10^-9) by 54340.
It was replayed here in full on 27 September 2026 by the source's Python and JavaScript BigInt checkers, which agree on every interval and with both published ledger pairs; they are one event-cell method.
Kleddamag, 17-squares-certified-bound, building on Squares Project (Joshua Levy), Mira and Guzhou0806, as its ATTRIBUTION.md states, produced with AI agents (OpenAI Codex) under Kleddamag's direction.
Significance, composition and next rung
- Significance
- Raised the verified lower bound at by 0.01999 on T-040's checkers and budget rules, with a larger dictionary of the same features. A substantive case result, S3 by the T-015 and T-032 precedent.
- Next rung
- V4 and C4 need two adversarial AI reviews by distinct reviewers and a human oversight record, and none is retained. A second machine method is not at hand: the native parent-core route cannot read the weighted and winning-subset features, and the review's independent exact sweep, which shares no code with the source and reproduced all 2,168 row minima, was review scratch and is the same method. Retaining that sweep as a repository instrument would make the exact leg this repository's own. Rung 5 needs a proof-assistant formalization reviewed by human experts. Superseded as the verified lower bound on 2026-09-29 by Guzhou0806's R068 (T-043), which continues this charge; stays true as stated.
- Novelty
- previously-published Present in an identified source
The case
Proven
- exact
Citation record n-017
lowerGuzhou0806 after Kleddamag et al. 2026, GitHub (confirmed T-093)
upperBidwell 1998, Squares in Squares (confirmed T-065)
Open
- optimality
The case record
Results on the case
17 results in the register on , oldest first, each with what it established and how it stands now.
2005 published T-007
for
V0 C1 lower bound incomplete on this case, superseded by T-093
Nagamochi · Nagamochi 2005 · source · register
2026-08-21 published T-015
V3 C3 lower bound confirmed superseded by T-093
Massaccesi after Burns · Burns–Massaccesi n17 · packet · register
2026-08-31 established T-001
, from a sixteen-point unavoidable set
V3 C3 lower bound confirmed superseded by T-093
Levy after Bentz · register
2026-08-31 established T-003
The sixteen-point set's unavoidability ceiling lies in
V3 C3 method limit confirmed
Levy after Bentz · register
2026-09-04 established T-019
for
V3 C3 lower bound confirmed superseded by T-093
Levy after Burns, Massaccesi · register
2026-09-04 published T-085
Nagamochi 2005, Lemma 1 is false for every container with and
V3 C3 correction confirmed
Karakuş; chelokot · Karakuş 2026 · chelokot Nagamochi counterexample 2026 · packet · register
2026-09-20 published T-032
, and beneath it Mira's
V3 C3 lower bound confirmed superseded by T-093
Guzhou0806, Mira after Levy, Burns, Massaccesi · n17 weighted certificates 2026-09-20 · packet · register
2026-09-21 published T-038
V3 C3 lower bound confirmed superseded by T-093
Kleddamag after Levy, Mira, Guzhou0806 · Kleddamag n17 certified bound · packet · source · review · register
2026-09-21 published T-065
, Bidwell's packing certified exactly
V3 C3 upper bound confirmed
Kleddamag after Levy, Mira, Guzhou0806 · Kleddamag n17 certified bound · packet · source · review · register
2026-09-25 published T-039
V3 C3 lower bound confirmed superseded by T-093
Guzhou0806 after Kleddamag, Mira, Levy · Guzhou0806 n17 R052 · packet · source · review · register
2026-09-26 published T-040
V3 C3 lower bound confirmed superseded by T-093
Kleddamag after Levy, Mira, Guzhou0806 · Kleddamag n17 4.640020 · packet · source · review · register
2026-09-27 published T-041 this result
V3 C3 lower bound confirmed superseded by T-093
Kleddamag after Levy, Mira, Guzhou0806 · Kleddamag n17 4.66001 · packet · source · review · register
2026-09-28 published T-042
V3 C3 lower bound confirmed superseded by T-093
Guzhou0806 after Kleddamag, Mira, Levy · Guzhou0806 n17 R067 · packet · source · review · register
2026-09-28 published T-043
V3 C3 lower bound confirmed superseded by T-093
Guzhou0806 after Kleddamag, Mira, Levy · Guzhou0806 n17 R068 · packet · source · review · register
2026-09-29 published T-058
Rectangle-certificate ceiling
α·UB(n)proved for ..100;B·UB(n)on 64 grid rowsV3 C3 method limit confirmed
wand125 after Tokoharu, Daniel · wand125 tools 2026 · packet · register
2026-09-29 published T-083
for every nonsquare
V3 C3 lower bound confirmed on this case, superseded by T-093
Karakuş · Karakuş 2026 · source · register
2026-09-30 published T-093
V3 C3 lower bound confirmed
Guzhou0806 after Kleddamag, Mira, Levy · Guzhou0806 n17 R071 · packet · source · review · register
Links
- On this site
- Case record, · Frontier row, · T-041 in the results table
On GitHub, at main
- Register
- T-041 in
results.yaml, line 3568 - Evidence
E-n017-kleddamag-466001-report·E-n017-kleddamag-466001-source-replay- Proofs and certificates
- certificate
certificate.json· proofPROOF.md· auditreview-2026-09-27-n17-kleddamag-466001.md - Sources
- Kleddamag n17 4.66001 (its own site, retained copy)
- Source packet
resources/web/n17-kleddamag-466001-2026-09-27/README.md- Artifacts
8 artifacts and controls
resources/web/n17-kleddamag-466001-2026-09-27/README.mdresources/web/n17-kleddamag-466001-2026-09-27/kleddamag-17-squares-certified-bound/bounds/4.66001/PROOF.mdresources/web/n17-kleddamag-466001-2026-09-27/kleddamag-17-squares-certified-bound/ATTRIBUTION.mdresources/web/n17-kleddamag-466001-2026-09-27/receipts/replays.jsondocs/project/reviews/review-2026-09-27-n17-kleddamag-466001.mdtests/test_guzhou_r068_packet.pytests/test_retained_data.pyresources/web/n17-kleddamag-466001-2026-09-27/kleddamag-17-squares-certified-bound/bounds/4.66001/controls.py- Case file
frontier/n-017.md(verified lower, verified upper, reported lower, reported upper)