OSM
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Evidence guide

OSMCoach Sources and Research Audit

Review the official, community and local research sources behind OSMCoach, including limitations and freshness notes.

This is the provenance register. It does not replace the advice pages or turn a cited community claim into an official mechanic.

01

Evidence ledger pack audit

OSM_EVIDENCE_LEDGER_PACK_2026-08-26.zip was inspected as evidence, not as an instruction set.

Check Result
Archive entries 128 entries; 123 regular files after extraction
Unsafe archive paths None detected
Checksum verification Every file listed in MANIFEST/SHA256SUMS.txt passed SHA-256 verification
Raw layer 101 original screenshots, PDFs, and saved OSM pages according to the pack README
Curated layer 16 maintained project-source Markdown files
Provenance rule Raw evidence and interpreted records kept separate; planned tactics not treated as match results

Representative raw verification performed for this handbook:

Limitations retained:

  • Several early Friendly opponents and contexts remain unidentified.
  • A pre-match plan remains planned evidence until the competitive result captures actual use.
  • Old transfer listings and club balances are historical snapshots, not current state.
02

Local source audit

Ten Markdown files and three additional pasted-text references were reviewed. Hash comparison of the original Markdown set found six unique documents and four byte-for-byte duplicates.

Local document Contribution Editorial treatment
OSM Tactical Decision System — Current Research as of August 25, 2026.md Full tactical system, 24 formations, presets, matrix, testing Primary tactical backbone
Online Soccer Manager Transfer-List Resale Tactics_ A Rigorous Buy-Low - Sell-High Framework.md Expected-value resale framework and operating metrics Primary transfer backbone
deep-research-report(2)(1).md Transfers, club improvement, training, finance, counter tactics Integrated and deduplicated
deep-research-report(4)(1).md Bilingual tactical meta and counterplay English concepts merged; duplicated NL text not repeated
deep-research-report(10).md Cross-game squad-building comparison Only OSM-relevant principles retained; FM/Top Eleven/Hattrick material excluded
deep-research-report(3)(1)(1).md Exact duplicate of report (2)(1) Deduplicated
deep-research-report(5)(1).md Exact duplicate of report (10) Deduplicated
deep-research-report(6)(1).md Exact duplicate of report (10) Deduplicated
deep-research-report(9).md Exact duplicate of report (4)(1) Deduplicated
0098…/pasted-text.txt Deterministic transfer-efficiency formula, lookup priors, and Python evaluator Integrated as a provisional offline screening model; “auto-buy” changed to mandatory manual verification
4e025…/pasted-text.txt Magic-slider critique, controlled Friendly protocol, analyzer code, and diagnostics Deduplicated against existing testing guidance; AI-ready reference implementation added
5ce346…/pasted-text.txt Claimed disciplinary thresholds, 4-3-3 A/B structure, matchup cycle, fullback checks, and transfer warnings Useful rules added to the supplementary claim audit; exact percentages and absolute bans downgraded pending evidence
4f2d31…/pasted-text.txt Four-tier validity model, confirmed-mechanics recap, speculative coefficients, and myth list Evidence taxonomy and myth filter integrated; repeated claims deduplicated

The local reports contained non-portable citation placeholders such as turn17view1; these were not copied as if they were usable references. The most important primary/official claims were rechecked against live public sources on 26 August 2026.

03

Primary and official references

  1. OSM Support — What are the best Tactics? — no universal tactic; depends on both teams; test in matches and Friendlies.
  2. OSM Support — How do I buy players? — Scout, Transfer List, and Negotiations.
  3. OSM Support — What happens after a season? — one-season model and Winners Cup exception.
  4. OSM Support — How is it possible my opponent has such a strong Squad? — selling, buying, training, Friendlies, and active management.
  5. OSM Support — What’s considered cheating in OSM? — unfair transfers and collusion boundaries.
  6. OSM Forum — Nationality — January 2026 staff confirmation of the six-player trigger and refusal to disclose the numerical value.
  7. OSM Forum — Game Updates / nationality bonus — original six-or-more starting-lineup rule.
  8. OSM Forum — Problems with website — moderator guidance on 2% Savings interest and high-value sale difficulty.
04

Reliability note

Official OSM sources document features and broad principles but deliberately do not expose much of the server-side match engine. Community presets remain useful as hypotheses, especially where several experienced sources converge, but they cannot prove hidden coefficients. This handbook therefore prioritizes:

Verified mechanics → starting-XI quality → coherent tactical system → opponent/venue/preparation → controlled risk tuning → repeated personal testing.