中国象棋规则的英文版

　　CXQChineseChessBasicRules

　　Onecanmovethepiecesaccordingtothefollowingrules:

　　TheKingmovesonlyonespaceatatime,eitherhorizontallyorvertically.Furthermore,theKingmustalwaysstaywithinthepalace,whichisasquaremarkedwithanX.

　　TheGuards(Advisor)moveonlyonespaceatatimediagonally.SimilartotheKing,theguardsmuststaywithinthepalace.

　　TheMinisters(Elephants)movetwospacesatatimediagonally(i.e.2spacesleft/rightand2spacesup/downinamove).Theymuststaywithintheirownsideoftheriver.Ifthereisapiecemidwaybetweentheoriginalandfinalintendedpositionofaminister,theministerisblockedandthemoveisnotallowed.

　　TheRooks(Cars)moveoneormorespaceshorizontallyorverticallyprovidedthatallpositionsbetweentheoriginalandfinalpositionsareempty.

　　TheKnights(Horses)movetwospaceshorizontallyandonespacevertically(orrespectively2spacesverticallyandonespacehorizontally).Ifthereisapiecenexttothehorseinthehorizontal(vertical)direction,thehorseisblockedandthemoveisnotallowed.

　　TheCannonsmoveoneormorespaceshorizontallyorverticallylikeaRook.However,inacapturemove,theremustbeexactlyonenon-emptyspaceinbetweentheoriginalandfinalposition.Inanon-capturemove,allspacesinbetweenmustbeempty.

　　ThePawns(orSoldiers)moveonespaceatatime.Ifapawndoesnotcrosstheriveryet,itcanonlymoveforwardvertically.Oncecrossingtheriver,thepawncanalsomovehorizontally.

　　Capture:Whenapiecemovestoapositioncurrentlyheldbyanopponent'spiece,itcapturesthatopponent'spiece.Thecapturedpieceisremovedfromtheboard.

　　King'slineofsight:ThetwoKingsintheboardmustneverbeonthesamefile(verticalline)withoutanypiecesinbetweenthem.AmovethatputsthetwoKingsinsuchasettingisillegal.

　　Kingsafety:OnemustneverleavetheKingtobecapturedbytheopponentinthenextmove.AnymovesthatputtheKinginsuchasettingisillegal.

　　Endgamecondition:Thegameendswhenoneofthefollowingsituationshappens:

　　Checkmate:Ifonethreatenstocapturetheopponent'sKingandtheopponenthasnowaytoresolvethethreat,onewins.

　　Stalemate:Ifonedoesnothaveanyvalidmove,oneloses.

　　OneorbothsidesviolatetheAdvancedRules.

　　CXQChineseChessAdvancedRules

　　Tomakethegamesfair,certainpaternofmovementsarerestricted.Inthenutshell,CXQRulesprohibitaplayertocontinuouslythreatentocaptureoneopponent'spieceusingoneormorepieces.Suchmovementsareeitherperpetualchecks(iftheKingisthreatened)orperpetualchases(ifanunprotectedpieceotherthantheKingisthreatened).

　　Terminology:Tomaketherulesprecise,thefollowingtermsareused:

　　Check:Amoveofanypiecethatcausestheopponent'sKingtobethreatenedwithcaptureinthenextmove.

　　Sametypesacrifice/trade:Apiecemovestoapositionwhereitcancaptureanopponent'spieceofthesametypeinsuchawaythattheopponentpiececanalsocaptureitinthenextmove.

　　Chase:Apiecemovestoapositionwhereitcancaptureanopponent'spiece,whichisnottheKing,inthenextmove.Itisalsoachasewhenapiecemovesandresultsinacannonattackinganopponent'spiece.Thereareafewexceptions:

　　ItisnotachasewhenaKingoraPawnthreatenstocaptureanypiece.

　　ItisnotachasetothreatentocaptureaPawnwhenitisyettocrosstheriver.

　　Sametypesacrifice/tradeisnotachase.

　　Protected:Apieceisprotectedifthereisapiecethatcancaptureanypiecethattakestheprotectedpiece.Anexceptionisthatacarisneverconsideredprotectedwhenitisthreatenedbyanopponent'scannonorknight.

　　TheCXQAdvancedRules:Allmovesfollowingthebasicrulesareallowedexcept:

　　PerpetualCheck:Continuouslycheckingopponentusingoneormorepiecesisnotallowed.

　　PerpetualChase:Continuouslychasingoneunprotectedopponentpieceusingoneormorepiecesisnotallowed.

　　WhenonesideviolatestheAdvancedRuleswhiletheotherdoesnot,theonewhoviolatestheruleloses.Itisadrawwhenbothsidesperpetualcheckorbothperpetualchase.Ifonesideperpetualchecksandtheothersideperpetualchases,theonewhoperpetualchecksloses.

　　CXQallowsaplayertocheck/chase6consecutivetimesusingonepiece,12timesusing2pieces,and18timesusing3piecesbeforeconsideringthecheck/chaseaperpetualcheck/chase.

　　CXQAutomaticDrawingRules

　　Whenthegameisnotwinnable,itisstronglyrecommendedthatbothplayersdrawthegamebythemselves.Topreventoneorbothplayersfromdraggingthegamesforalongtime,CXQimposesthefollowing3rulesforautomaticdrawing:

　　MovesRule:Whenthetotalnumberofmovesmadebyeachsidereaches300.

　　EffectiveRule:Whenthetotalnumberofeffectivemoves,movesmadebyeachsideexcludingchecking/chasingmovesormovestorespondtochecking/chasing,reaches120.

　　ProgressRule:Whenthetotalnumberofmovesbyeachsidesincethelasttimeaprogressismade,i.e.since(1)thelastcaptureor(2)thelastadvanceofapawnalreadycrossedtheriver,reaches30.

　　Notes

　　CXQAdvancedRulesaresimilartoAsianChineseChessRules.CXQ'sgoalistomaketherulesaseasilyunderstandablebyanaverageplayeraspossible.ThosewhowishtolearntherulesmoreindetailarestronglyrecommendedtocheckoutAsianRules.

　　FollowingarethejudgementcallsforcommonscenariosusingtheAdvancedRules:

　　One(ormany)checksoneidleisallowed.

　　One(ormany)checksonechaseisallowed.

　　One(ormany)chasesonecheckisallowed.

　　One(ormany)chasesoneidleisallowed.

　　One(ormany)checksonethreatentocheckmateisallowed.

　　Perpetualchasetwoormorepiecesisallowed.

　　Perpetualblockingisallowed.

　　NotethatamoveisaviolationifitviolatestheAdvancedRulesinanyway.Forexample,aperpetualblocking,ifitisalsoaperpetualchase,isaviolationeventhoughperpetualblockingisallowedingeneral.

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