Bug 474106

Summary: spider solver sometimes shows solvable game as unsolvable
Product: [Applications] kpat Reporter: Steve Soule <sts33nvyb>
Component: solverAssignee: Stephan Kulow <coolo>
Status: REPORTED ---    
Severity: minor CC: hoyanmok, kde-games-bugs-null
Priority: NOR    
Version First Reported In: 23.08.0   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: kpat saved game
Video showing bug

Description Steve Soule 2023-09-03 17:52:43 UTC
Created attachment 161376 [details]
kpat saved game

SUMMARY
Sometimes the solver in KPatience Spider shows "Solver: This game is no longer winnable" when the game can still be won.

STEPS TO REPRODUCE
1. Load attached save game
2. Move red queen

OBSERVED RESULT
Message is "This game is no longer winnable" before the move.

EXPECTED RESULT
Message is "This game is winnable" or "Unable to determine if this game is winnable" before the move.

SOFTWARE/OS VERSIONS
Linux version: 6.4.11-1
distribution: openSUSE Tumbleweed 20230901 (x86_64)
kwin5 version: 5.27.7-1.2.x86_64
plasma5-workspace version: 5.27.7-3.1.x86_64
libQt5Core5 version: 5.15.10+kde129-2.2.x86_64
Comment 1 Steve Soule 2023-09-03 17:53:37 UTC
Created attachment 161377 [details]
Video showing bug