资源描述:
《Lewis,.W.-.Chess.Problems.(electronic.edition)》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、CHESSPROBLEMSbeingaselectionoforiginalpositions;towhichareaddedothers,extractedfromrareandvaluableworksformingtogetheronehundredendsofgames;wonordrawnbybrilliantandscientificmoves;towhichareaddedthenamesoftheauthors.byW.Lewisteacherofchess[1827]AnElectronicEditionAndersThulin,Malmö·Prelim
2、inaryeditionPREFACEEndsofGamesorPositionswonordrawnbymasterlymoves,havealwaysbeenconsideredbythebestChessplayersandwritersasemi-nentlyuseful,ifnotabsolutelynecessarytowardsformingthefinishedplayer;andthoughmanyexcellentoneshavealreadybeenpublished,yetIamnotwithouthopesthatthefollowingwork
3、willbefavourablyreceivedbytheChessworld,asitcontainsforty-eightoriginalposi-tions,besidesothersextractedfromauthorslittleknowneventothegoodChessplayer,noneofthemhavingbeencopiedfromStamma’sWork,theStratagemsofChess,Sarratt’sTreatise,ortheOrientalChess.Ihaveendeavouredasmuchaspossibletosel
4、ectsuchPositionsasareinstructiveaswellasamusing;accordingly,thereaderwillobserve,thattherearemanyinwhichtheWhite,thoughunabletocheckmateinagivennumberofmoves,canyetacquiresuchasuperiorityastohaveawinninggame.Suchpositionsaregenerallythemostimprov-ing.Amongthoseinwhichthenumberofmovesisfix
5、ed,willbefoundmanyinwhichastheWhiteisnotexposedtoanimmediatecheck-mate,itbynomeansfollowsthathemustgivecheckeverymove:suchpositionsaremoredifficultthanthoseinwhichfromthesituationofthepiecesitisevidenttheBlackmustbecheckedeverymove.IdeferforthepresentpublishingtheSolutions,thatthereaderma
6、ysolvetheProblemswithoutbeingtemptedtorefertotheKey.Theywillhoweverbeprintedinthecourseofthepresentyear;andthoughinsuchaworkitisnexttoimpossibletobeperfectlyaccurate,yetIbelieveveryfewerrorswillbefound.Insomeperhapsthecheckmatemaybedelayedforamoveortwobyauselesssacrifice,aninstanceofwhich
7、occursintheForty-fifthSituation,inwhichthematecannotbegiveninlessthantenmoves.Inconclusion,IhavetooffermysincerethankstothosefriendswhosecontributionshaveenrichedtheWork,andenabledmetorenderitmoreworthytheattentionofthescientificplayer.W.LEWIS76,St.Martin’s-lane,May