Playing a game of spider. In some situation the solver reports "game not winnable" ("spiel kann nicht gewonnen werden" - in german), but afte the next move, the solver reports "game winnable" ("spiel kann (noch) gewonnen werden"). Reproducible: Didn't try Steps to Reproduce: 1. load attached saved game 2. move six of hearts (stack 6) to stack 9 3. win the game Actual Results: the solver shows "game winnable" Expected Results: the message before the move should be "game is winnable" <!DOCTYPE kpat> <dealer options="4" started="1" number="285687106" moves="208" id="17" data="25"> <pile z="60" index="1"/> <pile z="48" index="2"/> <pile z="36" index="3"/> <pile z="24" index="4"/> <pile z="12" index="5"/> <pile z="20" index="6"> <card faceup="1" value="1" suit="0"/> </pile> <pile z="20" index="7"> <card faceup="0" value="2" suit="1"/> <card faceup="0" value="5" suit="1"/> <card faceup="1" value="13" suit="3"/> <card faceup="1" value="12" suit="2"/> <card faceup="1" value="11" suit="3"/> <card faceup="1" value="10" suit="1"/> <card faceup="1" value="9" suit="1"/> <card faceup="1" value="8" suit="1"/> <card faceup="1" value="7" suit="1"/> <card faceup="1" value="6" suit="1"/> <card faceup="1" value="5" suit="1"/> <card faceup="1" value="4" suit="1"/> <card faceup="1" value="3" suit="1"/> <card faceup="1" value="2" suit="1"/> <card faceup="1" value="1" suit="1"/> <card faceup="1" value="10" suit="3"/> <card faceup="1" value="6" suit="1"/> <card faceup="1" value="13" suit="2"/> <card faceup="1" value="12" suit="3"/> <card faceup="1" value="11" suit="3"/> <card faceup="1" value="10" suit="3"/> <card faceup="1" value="9" suit="0"/> <card faceup="1" value="8" suit="3"/> <card faceup="1" value="7" suit="3"/> <card faceup="1" value="6" suit="3"/> <card faceup="1" value="5" suit="3"/> <card faceup="1" value="4" suit="3"/> <card faceup="1" value="3" suit="3"/> <card faceup="1" value="2" suit="3"/> <card faceup="1" value="1" suit="3"/> </pile> <pile z="20" index="8"> <card faceup="0" value="8" suit="0"/> <card faceup="1" value="3" suit="2"/> <card faceup="1" value="2" suit="2"/> <card faceup="1" value="1" suit="2"/> <card faceup="1" value="11" suit="0"/> <card faceup="1" value="4" suit="2"/> <card faceup="1" value="3" suit="3"/> <card faceup="1" value="2" suit="3"/> <card faceup="1" value="1" suit="1"/> <card faceup="1" value="4" suit="1"/> <card faceup="1" value="3" suit="1"/> </pile> <pile z="20" index="9"> <card faceup="0" value="10" suit="0"/> <card faceup="0" value="13" suit="3"/> <card faceup="1" value="5" suit="0"/> <card faceup="1" value="11" suit="1"/> <card faceup="1" value="7" suit="3"/> <card faceup="1" value="6" suit="3"/> <card faceup="1" value="5" suit="3"/> <card faceup="1" value="4" suit="0"/> <card faceup="1" value="3" suit="0"/> <card faceup="1" value="2" suit="0"/> <card faceup="1" value="1" suit="3"/> </pile> <pile z="20" index="10"> <card faceup="1" value="4" suit="3"/> </pile> <pile z="20" index="11"> <card faceup="1" value="9" suit="3"/> <card faceup="1" value="8" suit="1"/> <card faceup="1" value="7" suit="2"/> <card faceup="1" value="6" suit="2"/> </pile> <pile z="20" index="12"> <card faceup="1" value="13" suit="1"/> <card faceup="1" value="12" suit="1"/> <card faceup="1" value="11" suit="1"/> <card faceup="1" value="10" suit="1"/> </pile> <pile z="20" index="13"> <card faceup="1" value="13" suit="1"/> <card faceup="1" value="12" suit="1"/> </pile> <pile z="20" index="14"> <card faceup="1" value="13" suit="0"/> <card faceup="1" value="12" suit="0"/> <card faceup="1" value="11" suit="2"/> <card faceup="1" value="10" suit="2"/> <card faceup="1" value="9" suit="2"/> <card faceup="1" value="8" suit="3"/> <card faceup="1" value="7" suit="1"/> </pile> <pile z="20" index="15"> <card faceup="0" value="12" suit="3"/> <card faceup="0" value="9" suit="1"/> <card faceup="1" value="9" suit="3"/> <card faceup="1" value="8" suit="2"/> <card faceup="1" value="7" suit="0"/> <card faceup="1" value="6" suit="0"/> <card faceup="1" value="5" suit="2"/> </pile> <pile z="0" index="16"> <card faceup="1" value="13" suit="2"/> <card faceup="1" value="12" suit="2"/> <card faceup="1" value="11" suit="2"/> <card faceup="1" value="10" suit="2"/> <card faceup="1" value="9" suit="2"/> <card faceup="1" value="8" suit="2"/> <card faceup="1" value="7" suit="2"/> <card faceup="1" value="6" suit="2"/> <card faceup="1" value="5" suit="2"/> <card faceup="1" value="4" suit="2"/> <card faceup="1" value="3" suit="2"/> <card faceup="1" value="2" suit="2"/> <card faceup="1" value="1" suit="2"/> </pile> <pile z="14" index="17"> <card faceup="1" value="13" suit="0"/> <card faceup="1" value="12" suit="0"/> <card faceup="1" value="11" suit="0"/> <card faceup="1" value="10" suit="0"/> <card faceup="1" value="9" suit="0"/> <card faceup="1" value="8" suit="0"/> <card faceup="1" value="7" suit="0"/> <card faceup="1" value="6" suit="0"/> <card faceup="1" value="5" suit="0"/> <card faceup="1" value="4" suit="0"/> <card faceup="1" value="3" suit="0"/> <card faceup="1" value="2" suit="0"/> <card faceup="1" value="1" suit="0"/> </pile> <pile z="28" index="18"/> <pile z="42" index="19"/> <pile z="56" index="20"/> <pile z="70" index="21"/> <pile z="84" index="22"/> <pile z="98" index="23"/> </dealer>
Togehter with a playability upgrade for spider (see Bug report 248859) I also submitted a rewrite of large portions of the spider specific part of the solver, that - according to my tests - fixes this issue. After loading the savegame contained in this issue, the patched kpat reports that games correctly as "solvable".
Created attachment 91676 [details] Game described as unwinnable. Here is another game marked as unwinabble. Moving the 3♡ to the 4♧ marks the game as unwinnable. I have not tested this with the patched version.
Created attachment 94650 [details] added another one, just to support analysis load kngw_1.kpat => "game is winnable" ("Spiel kann (noch) gewonnen werden", in german) move king of spades to empty slot => "cannot win the game" ("Spiel kann nicht mehr gewonnen werden") [this is kngw_2.kpat content] played some moves, resulting in kngw_3.kpat, game still "unwinnable" move 5 of clubs [3] to 6 of diamonds [1], and the game is "winnable" (see kngw_4.kpat)
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!