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solver: prune insufficient valley capacity

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A selected valley cannot admit a square wider than itself until it reaches the lower neighbouring rim. Reject states whose remaining narrow-square area cannot fill that strip, including width-one and width-two gaps.

Keep an unpruned benchmark mode and dedicated counters so the rule remains independently measurable. Record the soundness argument and the measured default-on improvement.

Tests: Debug CTest (12 passed)

Tests: ASan+UBSan CTest (12 passed)

Refs: #10
This commit was merged in pull request #26.
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2026-07-31 08:11:30 +01:00
parent f37e08768d
commit e27427d231
6 changed files with 234 additions and 26 deletions
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CMakeLists.txt
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@@ -26,6 +26,7 @@ if(BUILD_TESTING)
add_test(NAME search-counters COMMAND partridge_tests search-counters)
add_test(NAME skyline-search COMMAND partridge_tests skyline-search)
add_test(NAME d4-symmetry COMMAND partridge_tests d4-symmetry)
add_test(NAME valley-capacity COMMAND partridge_tests valley-capacity)
find_package(Python3 COMPONENTS Interpreter)
if(Python3_Interpreter_FOUND)
add_test(NAME benchmark-format