Yu - Gi - Oh ! Duelist - Duel 170 " The Eyes of Memory " , also known as " Blue Memory ! ! " in the Japanese version , is the 170th chapter of the " Yu - Gi - Oh ! Duelist " manga in the English version and the 229th chapter of " Yu - Gi - Oh ! " in the Japanese version . Summary . Kaiba chants " Obelisk the God of destruction ! Destroy the enemy and bring me victory ! " as " The God of the Obelisk " materializes behind him . The 4000 ATK " Obelisk " looms over the field , and both Dark Marik and Jonouchi observe the giant God monster for the first time . Dark Yugi thinks that of the God attacks , Ishizu will lose . Kaiba , Life Points at 1350 , tells Ishizu to brace herself . Ishizu herself is on 1400 Life Points . Kaiba declares his turn . Ishizu silently urges Kaiba to attack her . Her last face - down card is already in the Graveyard , but its effect remains , even though Kaiba can ' t see it . He won ' t see it until it ' s too late ; she used her " Blast Held by a Tribute " to rig a bomb within her " Zolga , " and " Obelisk , " who Kaiba Summoned using " Zolga , " will explode when the bomb goes off . God or not , it is not invulnerable , and when it is blasted to pieces , all its power will lash out at Kaiba . The trap will be triggered when " Obelisk " attacks , just as her " Millennium Tauk " foresaw . Kaiba , meanwhile , thinks that Ishizu doesn ' t have any monsters , she doesn ' t have any face - down cards . He wins this Duel . Kaiba tells Ishizu that he normally never shows mercy to his opponents , regardless of their gender , but if she gives up now , he will let her walk away . Ishizu doesn ' t reply . Kaiba laughs softly , looking at the " Blue - Eyes White Dragon " and " Silent Doom " cards in his hand , thinking that now that he has the God , he doesn ' t need the rest of his hand . He wonders if Ishizu is ready . On the sidelines , Anzu doesn ' t believe this . A second ago , Kaiba ' s situation looked hopeless , and now it ' s Ishizu who ' s in trouble . She looks at Yugi , remembering that he wants Kaiba to win and wonders why . Ishizu ' s Millennium Item predicted Kaiba would lose , and so far , all her predictions have come true . Like at the museum , she predicted Battle City , and she predicted they ' d fight an enemy with the last Millennium Item . She even said that Yugi would fight to regain his memories . She muses that Yugi wants to find his lost past , but on the other hand , Kaiba only cares about the future . She doesn ' t think she ' s ever heard him talk about his past . She wonders if maybe that ' s why they want to Duel each other ; to find the answers to what they lost . Dark Yugi , meanwhile , wonders if it ' s really that easy . Will " Obelisk " beat Ishizu just like that ? Ishizu has a Millennium Item , and she predicted Kaiba would lose . But Dark Yugi has a bad feeling , and he wonders if Kaiba feels the same way . Kaiba certainly seems worried , and Ishizu thinks that Kaiba has no choice but to use " Obelisk " to attack . Dark Marik smiles , thinking that his sister is a terrifying Duelist . The moment Kaiba declares an attack . . . boom . Oh well , he comments as he turns to leave . This Duel ' s over . He looks at the Millennium Rod , musing that his other self had some questions about Kaiba ; he wanted to know the relationship between Kaiba and the Millennium Rod , as shown on the ancient stone slab . But after this Duel , Kaiba will be gone , and the mystery will never be solved . It doesn ' t interest Dark Marik anyway . Then , he notices that the Rod is throbbing . Kaiba finally begins to declare his attack . He tells God to crush Ishizu ' s future with its fists . Dark Yugi mentally thinks Kaiba ' s name . Dark Marik , meanwhile , wonders what ' s going on as the Millennium Rod begins to glow . Kaiba begins to order the attack , and Ishizu thinks that she won . The Rod shines again , and something strikes Kaiba , as Dark Marik wonders why the Millennium Rod is glowing . Kaiba has paused in mid - sentence . Images flow through his mind : he sees the stone slab from the museum , and the carving of the Millennium Rod in the hand of the priest . Then he sees the same priest holding the body of a woman in his arms before a stone tablet depicting the " Blue - Eyes White Dragon . " The vision ends , and Kaiba staggers , wondering what the vision was , and why he feels so sad . Ishizu wonders why Kaiba didn ' t attack , while Dark Marik asks himself if Kaiba ' s memory was sealed inside the Millennium Rod . Kaiba looks at the " Blue - Eyes " card in his hand , and he decides to trust the vision , to trust his memory , and Summon the " Blue - Eyes . " Ishizu protests that Kaiba has no choice but to use " Obelisk , " but Kaiba retorts that he does have a choice . He plays the Spell Card , " Silent Doom , " Special Summoning his " Gadget Soldier " from his Graveyard in Defense Position . Kaiba explains that to Summon his " Blue - Eyes White Dragon , " he needs two sacrifices . Ishizu asks herself if Kaiba could . . . and Kaiba confirms it - he offers God as a sacrifice . Featured Duel : Seto Kaiba VS Ishizu Ishtar . Turn 10 : Ishizu < br > Via the effect of " Soul Exchange , " Kaiba has just Normal Summon ed " The God of the Obelisk " in Attack Position . ( 4000 / 4000 ) Turn 11 : Kaiba < br > Kaiba draws . Kaiba ' s hand contains " Blue - Eyes White Dragon , " " Silent Doom , " and an unknown card . Kaiba is about to declare an attack with " The God of the Obelisk , " but before he can do so , Dark Marik ' s Millennium Rod activates and shows Kaiba a vision of a man holding the body of a woman up to a tablet of " Blue - Eyes White Dragon . " Trusting this vision , Kaiba activates " Silent Doom , " Special Summon ing " Gadget Soldier " from his Graveyard in Defense Position . He Tributes both " Obelisk " and " Gadget Soldier . " " Duel continues in the next chapter . . . " Featured cards . The following cards appeared in this chapter . Cards in italics debuted here . Production History . This chapter was first printed in Japanese in the " Weekly Shōnen Jump " magazine . It was reprinted in volume 19 of " Yu - Gi - Oh ! Duelist " .