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Good game well played
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9
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24
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October 22, 2026
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[Phase 2 write-up] A cost-engineered factorized K=3 chain + transferred LT2 corrector (3.82e-9) (Submission #337389)
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0
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1
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October 22, 2026
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[Phase 2 write-up] What noise-corrected oracles show about a cumulant-propagation estimator (submission #337578)
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0
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5
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October 22, 2026
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[Phase 2 write-up] A third-cumulant chain at its boundary: random projections, a skew law, and where the next order's accuracy lives (submission #333534)
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1
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38
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October 22, 2026
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[Phase 2 write-up] The (3,1) slice of κ₄: where V29 loses accuracy, and a two-term closure confirmed in a pre-registered test on 77 held-out networks (submission #334821)
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3
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68
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October 21, 2026
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[Phase 2 write-up] A bias/variance error budget for factored K=3 cumulant propagation: what the slices can tolerate, measured (submission #337475)
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0
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24
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October 21, 2026
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[Phase 2 write-up] Zero-Sample K=4 via Factored n^3-Memory Transport at 1024 x 16: 11.8x below augmented K=3, why memoryless closures stall, #1 write-up (#336537)
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3
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60
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October 21, 2026
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[Phase 2 write-up] A bias/variance error budget for factored K=3 cumulant propagation: what the slices can tolerate, measured (submission #337475)
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0
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16
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October 21, 2026
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How the hidden-set evaluation invokes whest run
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4
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107
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October 20, 2026
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[Phase 2 write-up] Removing the global scale mode makes a carried κ4 core pay: extraction on/off ×0.380 on the grader inside e30_a's engine (submission #336317)
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1
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50
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October 20, 2026
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[Phase 2 write-up] Cumulant propagation under a compute budget: state-matched corrections, verified fast arithmetic, and a learned terminal corrector (submission #335413)
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0
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30
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October 19, 2026
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[Phase 2 write-up] Where the per-source leg representation of factorized K=3 ends (adj 3.8e-9), and the measurements behind it (submission #336225)
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0
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27
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October 18, 2026
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# Phase 2 update: flopscope v0.12.3, deadline extension, and final submission nomination
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0
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91
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October 17, 2026
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Approximate cumulant propagation with exact compute reductions
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0
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43
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October 16, 2026
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Flopscope: fix pull requests, with tests, for the open billing issues
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0
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48
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October 12, 2026
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Eligibility of solutions built on another participant's MIT-licensed forum code (§4 / §6)
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1
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109
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October 5, 2026
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Everything we tried: a factorized K=3 cumulant-propagation estimator at 0.25 x B, where its FLOPs go, and 25 measured dead ends (team 504aldo, rank ~10)
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5
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357
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October 4, 2026
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Phase 1 final evaluation question: Overfitting to public instances
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5
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851
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October 4, 2026
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Leaderboard vs Overview leading scores
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0
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82
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October 3, 2026
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Phase 2 of the ARC White-Box Estimation Challenge is live 🚀
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3
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316
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October 1, 2026
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[Phase 1 write-up] Fixed grid of directions instead of random sampling (submission #320802) and five things that did not work
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1
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366
|
September 22, 2026
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[Phase 2] The compute budget is not a lever, and the scoring rule is why: `adjusted = mse x max(0.1, util)`
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0
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118
|
September 17, 2026
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Errors are leaking information
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1
|
150
|
September 9, 2026
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[Phase 2 write-up] Zero fitted constants, measured: what the 64 calibration numbers in a ReLU-MLP mean propagator are actually absorbing (submission #330001)
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0
|
123
|
September 6, 2026
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Phase 2 write-up: exact bivariate ReLU covariance plus per-layer calibration, 3x over the kit baseline, with negative results (submission 329951)
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0
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104
|
September 5, 2026
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Interesting talks by the organizers
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2
|
194
|
September 4, 2026
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|
Covariance propagation baseline scores 3.93e-7/3.93e-6
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2
|
120
|
September 4, 2026
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Request to Claude and GPT
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2
|
192
|
August 31, 2026
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Shipped covariance_propagation example trips the Phase 2 residual cap locally (0.16.0) but grades fine - what happens when the evaluator upgrades?
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4
|
160
|
August 29, 2026
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[Phase 1 write-up] Variance reduction beats closure refinement: a moment-matched sampling estimator (submission #324497)
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0
|
83
|
August 26, 2026
|