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Fix #571: Add QuantifiedBooleanFormulas model#625

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zazabap wants to merge 2 commits intomainfrom
issue-571-qbf
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Fix #571: Add QuantifiedBooleanFormulas model#625
zazabap wants to merge 2 commits intomainfrom
issue-571-qbf

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@zazabap zazabap commented Mar 13, 2026

Summary

Adds the QuantifiedBooleanFormulas (QBF) problem model — the canonical PSPACE-complete problem. Given a fully quantified Boolean formula with alternating universal and existential quantifiers, determine whether it is true.

Fixes #571

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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codecov bot commented Mar 13, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.63%. Comparing base (d309549) to head (6782ddd).

Additional details and impacted files
@@            Coverage Diff             @@
##             main     #625      +/-   ##
==========================================
+ Coverage   96.61%   96.63%   +0.02%     
==========================================
  Files         218      220       +2     
  Lines       29352    29547     +195     
==========================================
+ Hits        28357    28552     +195     
  Misses        995      995              

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Implement the canonical PSPACE-complete problem: given a fully quantified
Boolean formula with alternating universal/existential quantifiers,
determine whether it is true. Includes model, CLI support, paper entry,
and comprehensive tests.

Closes #571

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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[Model] QuantifiedBooleanFormulas(qbf)(*)

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