Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-06T15:03:06.382394Z
Paper Citation Record · LEDGER
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website?
As of 9 August 2026, this Paper Citation Record lists 26 of 26 outbound references and 0 inbound Pith citation observations for arXiv:2507.21137.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-09T06:31:02.800959+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links
A source-named dated measurement, never combined with another source.
Source: cited_works
Reference resolution
26 of 26 outbound references displayed
- verified exact1
- verified fuzzy19
- unresolved6
- parse uncertain0
- malformed identifier0
- metadata mismatch0
External citation measurements
No source-named external measurement is stored.
Outbound references
Observation 0abf1b15-129e-46cd-a809-bfc2290ded8f · outbound
This paper cites On the glucose sat solver.International Journal on Artificial Intelligence Tools, 2018.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? On the glucose sat solver.International Journal on Artificial Intelligence Tools, 2018
Reference 1
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.801805Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation f2e2f93b-7aa4-4cc5-a71c-8473bc99bd4a · outbound
This paper cites Sudokupuzzlesandhowtosolvethem.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Sudokupuzzlesandhowtosolvethem
Reference 2
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.788097Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 41d9a46e-4d5b-4327-965f-29e333674afe · outbound
This paper cites Find hard instances of the satisfiability problem.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Find hard instances of the satisfiability problem
Reference 3
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.773325Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation e59834cd-d831-4f41-854e-c28d028879ba · outbound
This paper cites an unresolved cited work.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Unresolved cited work
Reference 4
- Resolution
- unresolved
- raw_fallback, observed 2026-08-06T15:03:06.758971Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation aee805c7-c761-44cf-9e6e-be804386c8bf · outbound
This paper cites Minuet: A method to solve Sudoku puzzles by hand.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Minuet: A method to solve Sudoku puzzles by hand
Reference 5
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T15:03:06.280524Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 5205a819-c383-4a1e-9e26-8be4b81a246a · outbound
This paper cites Solving single-digit sudoku subproblems.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Solving single-digit sudoku subproblems
Reference 6
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.744631Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation cf5a280d-e590-4973-b48f-a5b56fd4828b · outbound
This paper cites The chaos within sudoku.Scientific reports, 2(1):1–8, 2012.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? The chaos within sudoku.Scientific reports, 2(1):1–8, 2012
Reference 7
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.729959Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation bd786aa3-a5fd-4a0e-966c-5a011ac4535c · outbound
This paper cites PhD thesis, State University of New York at Binghamton, USA, 1998.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? PhD thesis, State University of New York at Binghamton, USA, 1998
Reference 8
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.715457Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation e442ad34-73f6-4783-b1f8-e69571eafd6a · outbound
This paper cites Optimized cnf encoding for sudoku puzzles.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Optimized cnf encoding for sudoku puzzles
Reference 9
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.700805Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 47e2fcf3-b005-4736-a44d-c0fb668d5cff · outbound
This paper cites Sudoku of the day.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Sudoku of the day
Reference 10
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.686223Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 42ff9a5e-49ec-4840-bf4e-db8ee0f30829 · outbound
This paper cites Large Language Model Guided Tree-of-Thought.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Large Language Model Guided Tree-of-Thought
Reference 11
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T15:03:06.312971Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 1de5291d-8121-4ece-9158-ed913068b5ff · outbound
This paper cites Sudoku as a sat problem.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Sudoku as a sat problem
Reference 12
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.672237Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 718c1a51-689d-4fd3-92c8-489d3420cd44 · outbound
This paper cites Explaining Puzzle Solutions in Natural Language: An Exploratory Study on 6x6 Sudoku.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Explaining Puzzle Solutions in Natural Language: An Exploratory Study on 6x6 Sudoku
Reference 13
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T15:03:06.322415Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 0c3136b2-1a14-4c77-9e53-1ccf46ed10bc · outbound
This paper cites A hybrid approach for the sudoku problem: Using constraint programming in iterated local search.IEEE Intelligent Systems, 32(2):52–62, 2017.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? A hybrid approach for the sudoku problem: Using constraint programming in iterated local search.IEEE Intelligent Systems, 32(2):52–62, 2017
Reference 14
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.658828Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 2f233768-0b10-46a4-8700-fd5f95866764 · outbound
This paper cites e-Handbook of Statistical Methods.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? e-Handbook of Statistical Methods
Reference 15
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.644453Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 10d97b4f-4d0f-44e1-af04-491ec8918fbf · outbound
This paper cites Solvingeverysudokupuzzle.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Solvingeverysudokupuzzle
Reference 16
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.630904Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 5146d0fd-0fcd-433a-8b95-945b57f2d692 · outbound
This paper cites Accessed: 2025-06-23.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Accessed: 2025-06-23
Reference 17
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.617438Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation b73b4272-902d-49aa-a716-2bc31aa5c56f · outbound
This paper cites Difficulty Rating of Sudoku Puzzles: An Overview and Evaluation.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Difficulty Rating of Sudoku Puzzles: An Overview and Evaluation
Reference 18
- Resolution
- verified exact
- local_arxiv, observed 2026-08-06T15:03:06.461741Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation eae1f15c-70fc-45a4-9c02-cd629a9ac14d · outbound
This paper cites A sudoku-solver for large puzzles using sat.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? A sudoku-solver for large puzzles using sat
Reference 19
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.602692Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation e87421f7-fad3-44b0-bc48-01672392a683 · outbound
This paper cites Sudoku-Bench: Evaluating creative reasoning with Sudoku variants.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Sudoku-Bench: Evaluating creative reasoning with Sudoku variants
Reference 20
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T15:03:06.354000Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 912cff7c-5eb3-4739-986a-a2a6d651680c · outbound
This paper cites Causal Language Modeling Can Elicit Search and Reasoning Capabilities on Logic Puzzles.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Causal Language Modeling Can Elicit Search and Reasoning Capabilities on Logic Puzzles
Reference 21
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T15:03:06.358580Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 1004471a-3979-4179-83a6-7579e2cbe7df · outbound
This paper cites Sudoku as a constraint problem.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Sudoku as a constraint problem
Reference 22
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.586248Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 677ae464-650c-4951-8831-04e67ddb1b91 · outbound
This paper cites https://www.extremesudoku.info/.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? https://www.extremesudoku.info/
Reference 23
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.571056Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 7d27fbb8-ac4a-4ec3-bddc-de4231288d73 · outbound
This paper cites https://sudoku.org.uk/Daily.asp.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? https://sudoku.org.uk/Daily.asp
Reference 24
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.556469Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation ef5285db-6253-451d-bd21-b2c6fcb1c5d2 · outbound
This paper cites Equal-bin-width histogram versus equal-bin-count histogram.Journal of Applied Statistics, 48(12):2092–2111, 2021.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Equal-bin-width histogram versus equal-bin-count histogram.Journal of Applied Statistics, 48(12):2092–2111, 2021
Reference 25
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.542047Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 08ba2b92-2a6e-4b6d-8427-56d5f7fa9550 · outbound
This paper cites Accessed: 2025-06-23.
Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website? Accessed: 2025-06-23
Reference 26
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-06T15:03:06.527007Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Pith citing papers
No inbound Pith citation observations are available.