QGD Tarrasch to QGD Ragozin (D33 – D39)
D36 Queen's Gambit Declined: Exchange Variation Reshevsky Variation
D37 Queen's Gambit Declined: Barmen Variation
D37 Queen's Gambit Declined: Harrwitz Attack
D37 Queen's Gambit Declined: Harrwitz Attack Fianchetto Defence
D37 Queen's Gambit Declined: Harrwitz Attack Main Line
D37 Queen's Gambit Declined: Harrwitz Attack Main Line New Main Line
D37 Queen's Gambit Declined: Harrwitz Attack Main Line Old Main Line
D37 Queen's Gambit Declined: Harrwitz Attack Orthodox Defence
D37 Queen's Gambit Declined: Harrwitz Attack Two Knights Defence
D37 Queen's Gambit Declined: Harrwitz Attack Two Knights Defence Blockade Line
D37 Queen's Gambit Declined: Three Knights Variation
D38 Queen's Gambit Declined: Ragozin Defence
D38 Queen's Gambit Declined: Ragozin Defence Alekhine Variation
D39 Queen's Gambit Declined: Ragozin Defence Vienna Variation
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