| gptkbp:instanceOf | gptkb:chess_opening 
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                                | gptkbp:alsoKnownAs | gptkb:Petrov's_Defense 
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                                | gptkbp:characteristic | Counterattacking potential Solid defense
 Symmetrical pawn structure
 
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                                | gptkbp:counterTo | gptkb:King's_Pawn_Opening 
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                                | gptkbp:drawishReputation | Yes 
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                                | gptkbp:ECOCode | gptkb:C43 C44
 
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                                | gptkbp:firstBook | 1.e4 e5 2.Nf3 Nf6 
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                                | gptkbp:firstDescribed | Early 19th century 
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                                | gptkbp:frequentlyPlayedBy | gptkb:Magnus_Carlsen gptkb:Vladimir_Kramnik
 gptkb:Sergey_Karjakin
 gptkb:Vassily_Smyslov
 
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                                | gptkbp:mainLine | 3.Nxe5 d6 4.Nf3 Nxe4 
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                                | gptkbp:namedAfter | gptkb:Alexander_Petrov 
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                                | gptkbp:notableGame | gptkb:Kasparov_vs_Karpov,_World_Championship_1985 gptkb:Kramnik_vs_Kasparov,_London_2000
 
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                                | gptkbp:origin | gptkb:Russia 
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                                | gptkbp:popularFor | gptkb:19th_century 
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                                | gptkbp:strategy | Central control King safety
 Piece development
 
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                                | gptkbp:theory | gptkb:Deep 
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                                | gptkbp:usedIn | gptkb:World_Chess_Championship_matches 
 | 
                        
                            
                                | gptkbp:variant | gptkb:Cochrane_Gambit gptkb:Nimzowitsch_Attack
 gptkb:Steinitz_Attack
 gptkb:Classical_Variation
 
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                                | gptkbp:bfsParent | gptkb:Petrov_Defense 
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                                | gptkbp:bfsLayer | 7 
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                                | https://www.w3.org/2000/01/rdf-schema#label | Russian Defense 
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