ECO Codes A00 A01 Siggemannen Opening 1.g3 A02 Tipau opening 1.b4 A03 Tipau Opening 1.b4 e6 2.e3 A04 Tipau opening, 1...Nf6 1.b4 Nf6 A05 Tipau Opening, Center Defence 1.b4 e5 2.e3 d5 A06 Queen Pawn 1.d4 A07 Queen Pawn, 1...e6 1.d4 e6 A08 Queen Pawn, 1...Nh6 1.d4 Nh6 A09 Queen Pawn, French Invite 1.d4 e6 2.e4 A10 Queen Pawn 1...d5 1.d4 d5 A11 Queen's Gambit 1.d4 d5 2.c4 A12 Queen's Gambit 1.d4 d5 2.c4 e5 A13 Queen's Gambit Declined 1.d4 d5 2.c4 e6 A14 Queen Pawn, 1...Nc6 1.d4 Nc6 A15 Vlasov-Seberg Opening 1.e4 A16 French Defence 1.e4 e6 A17 Scandinavian Defence 1.e4 d5 A18 Scandinavian, Siggemannen Attack 1.e4 d5 2.Nc3 A19 Scandinavian with Nc3, Rekursiv Defence 1.e4 d5 2.Nc3 e5 A20 Scandinavian, Siggemannen Attack 1.e4 d5 2.Nc3 b5 3.d4 A21 Scandinavian, Siggemannen Attack 1.e4 d5 2.Nc3 b5 3.d4 e5 4.exd5 A22 Scandinavian, Siggemannen Attack 1.e4 d5 2.Nc3 b5 3.d4 e5 4.exd5 Bd6 A23 Graukater Opening 1.e4 d5 2.d4 A24 Graukater Opening, MiRU Variation 1.e4 d5 2.d4 e6 A25 Graukater Opening, Seberg Counter Attack 1.e4 d5 2.d4 e5 A26 Graukater Opening, Chelpo Gambit 1.e4 d5 2.d4 e5 3.Nf3 A27 Graukater Opening, Exchange 1.e4 d5 2.d4 e5 3.exd5 A28 Graukater Opening, Exchange 1.e4 d5 2.d4 e5 3.exd5 f6 4.c3 A29 Graukater Opening, 2...Nh6 defence 1.e4 d5 2.d4 Nh6 A30 Scandinavian, Advance Variation 1.e4 d5 2.e5 A31 Scandinavian, Advance, Closed Variation 1.e4 d5 2.e5 e6 3.Nf3 A32 Scandinavian, Advance, Bishop Counter 1.e4 d5 2.e5 Bg4 A33 Yokke Opening 1.Na3 A34 Yokke, Standard Defence 1.Na3 b5 A35 Yokke, 2.Nf3 1.Na3 b5 2.Nf3 A36 Yokke, 2.e3 1.Na3 b5 2.e3 A37 Yokke, Nf6 defence 1.Na3 b5 2.e3 Nf6 A38 Yokke, Symmetrical defence 1.Na3 b5 2.e3 e6 A39 Yokke, Two Knights 1.Na3 Nf6 A40 Yokke, 1...e6 1.Na3 e6 A41 Rekursiv-Hooby Opening 1.e3 A42 Rekursiv Hooby, Kalvin Defence 1.e3 f5 A43 Rekursiv-Hooby, Queen Attack 1.e3 Nf6 2.Qf3 A44 Rekursiv-Hooby, Mrundersun Defence 1.e3 d6 A45 Rekursiv-Hooby, Mrundersun Defence 1.e3 d6 2.Qh5 g6 3.Nc3 A46 Rekursiv-Hooby, Mrundersun Defence, 2.Nc 1.e3 d6 2.Nc3 A47 Rekursiv-Hooby, Symmetric Variation 1.e3 e6 A48 Rekursiv-Hooby, Exchange Line 1.e3 e6 2.Qf3 f5 A49 Rekursiv-Hooby, Exchange Line 1.e3 e6 2.Qf3 f5 3.Qh5 g6 A50 Rekursiv-Hooby, Knight Attack 1.e3 e6 2.Nf3 A51 Rekursiv-Hooby, Tipau-Siggemannen Counte 1.e3 e6 2.Nf3 Nc6 A52 Rekursiv Hooby, Mainline with 4.Bb5 1.e3 e6 2.Nf3 Qf6 3.c3 Bc5 4.Bb5 Kf8 A53 Rekursiv-Hooby Mainline 1.e3 e6 2.Nf3 Qf6 3.c3 Bc5 4.Bc4 Nh6 5.Qa4 b5 6.Kd1 bxa4 7.Ng5 Kd8 8.Bxe6 Ng4 9.Nxh7 A54 Rekursiv-Hooby, WildKiller Variation 1.e3 e6 2.Nf3 Qf6 3.Bd3 A55 Rekursiv-Hooby, Trzysiek Attack 1.e3 e6 2.Nf3 Qf6 3.Bd3 Bb4 4.c3 Bxc3 5.Nc3 A56 Rekursiv-Hooby WildKiller Variation 1.e3 e6 2.Nf3 Qf6 3.Bd3 Bb4 4.c3 Bxc3 5.Qa4 b5 6.Qd4 d6 7.Kd1 c5 8.Ng5 Kd8 9.Nxf7 cxd4 B00 Tipau 1.Nc3 B01 Tipau, Old Defence 1.Nc3 c6 B02 Tipau, Old Defence, 2.e4 1.Nc3 c6 2.e4 B03 Tpau, Old Defence, 2.e3 1.Nc3 c6 2.e3 B04 Tipau, Old Defence, 2.e3 1.Nc3 c6 2.e3 Nf6 B05 Tipau, Old Defence, Knight Attack 1.Nc3 c6 2.Ne4 B06 Tipau, Old Defence, Knight Attack 1.Nc3 c6 2.Ne4 d6 B07 Tipau, Old Defence, Knight Attack 1.Nc3 c6 2.Ne4 d6 3.Ng5 B08 Tipau, 1...e5 Defence 1.Nc3 e5 B09 Tipau, 1...e5 Defence, Nb5 1.Nc3 e5 2.Nb5 B10 Tipau, 1...e5 Defence, Nb5 Mainline 1.Nc3 e5 2.Nb5 Qh4 3.g3 Qe4 4.e3 Qxc2 B11 Tipau, 1...e5, 2.e3 1.Nc3 e5 2.e3 B12 Tipau, 1...e5, 2...Nh6 Defence 1.Nc3 e5 2.e3 Nh6 B13 Tipau 1...e5 with Qf3 1.Nc3 e5 2.e3 Nh6 3.Qf3 B14 Tipau 1...e5, Pin Variation 1.Nc3 e5 2.e3 Bb4 B15 Tipau, 1...e5, Mrundersun Defence 1.Nc3 e5 2.e3 Bb4 3.Qf3 Qf6 4.Nh3 B16 Tipau, Modern Defence 1.Nc3 e6 B17 Tipau Defence, Modern with 2.d4 1.Nc3 e6 2.d4 B18 Tipau Defence, Pin Variation 1.Nc3 e6 2.d4 Bb4 3.e4 B19 Tipau Defence, Two Knights 1.Nc3 e6 2.Nf3 B20 Tipau Defence, Two Knights 1.Nc3 e6 2.Nf3 Qf6 B21 Tipau Defence, Queen Sac Variation 1.Nc3 e6 2.Nf3 Qf6 3.Ne4 Qd4 4.Nxd4 B22 Tipau Defence, Modern variation with 5.. 1.Nc3 e6 2.Nf3 Qf6 3.Ne4 Nh6 4.g4 Qd4 5.Nxd4 Be7 B23 Tipau Defence, Mainline 1.Nc3 e6 2.Nf3 Qf6 3.Ne4 Nh6 4.g4 Qd4 5.Nxd4 Nc6 6.e3 Nb4 7.Bb5 c6 B24 Tipau Defence, Mainline with Nxa2 1.Nc3 e6 2.Nf3 Qf6 3.Ne4 Nh6 4.g4 Qd4 5.Nxd4 Nc6 6.e3 Nb4 7.Bb5 c6 8.c3 Nxa2 B25 Tipau Defence, Queen Sac Deferred 8... Nc2+ 1.Nc3 e6 2.Nf3 Qf6 3.Ne4 Nh6 4.g4 Qd4 5.Nxd4 Nc6 6.e3 Nb4 7.Bb5 c6 8.c3 Nc2 9.Kf1 B26 Sicilian 1.Nc3 Nf6 B27 Silician, 2.f3 1.Nc3 Nf6 2.f3 B28 Sicilian, TrojanKnight Line 1.Nc3 Nf6 2.e3 B29 Sicilian, TrojanKnight Exchange 1.Nc3 Nf6 2.e3 Ne4 3.Nxe4 B30 Sicilian, Tipau 1.Nc3 Nf6 2.e4 B31 Sicilian, Tipau, Old Mainline 1.Nc3 Nf6 2.e4 Ng4 3.f4 c6 B32 Sicilian, Three Knights 1.Nc3 Nf6 2.e4 Ng4 3.f4 c6 4.Nh3 B33 Sicilian, Tipau, Old Mainline 1.Nc3 Nf6 2.e4 Ng4 3.f4 c6 4.h3 B34 Sicilian, Tipau, Knight Counter Mainline 1.Nc3 Nf6 2.e4 Ng4 3.f4 c6 4.h3 d5 5.Nb5 B35 Sicilian, Tipau, Knight Counter Mainlin 1.Nc3 Nf6 2.e4 Ng4 3.f4 c6 4.h3 d5 5.Nb5 Nh2 6.Rxh2 B36 Sicilian 1.Nc3 Nf6 2.e4 c6 B37 Sicilian, Fismoluni Attack 1.Nc3 Nf6 2.e4 c6 3.f4 B38 Sicilian, Queen Counter Variation 1.Nc3 Nf6 2.e4 c6 3.f3 Qb6 B39 Sicilian, Tipau Attack 1.Nc3 Nf6 2.e4 c6 3.Nd5 cxd5 B40 Sicilian, Tipau Attack 1.Nc3 Nf6 2.e4 c6 3.Nd5 cxd5 4.Bb5 Nc6 B41 Sicilian, Siggemannen Attack 1.Nc3 Nf6 2.e4 c6 3.Nd5 cxd5 4.Bb5 Nc6 5.h3 B42 Sicilian, Modern Variation 1.Nc3 Nf6 2.e4 c6 3.Nd5 cxd5 4.Bb5 Nc6 5.f3 B43 Sicilian, Dragon 1.Nc3 Nf6 2.e4 c6 3.Nd5 cxd5 4.Bb5 Nc6 5.f3 g6 B44 Sicilian, Dragon with Bg5 1.Nc3 Nf6 2.e4 c6 3.Nd5 cxd5 4.Bb5 Nc6 5.f3 g6 6.d4 Bh6 7.Bg5 B45 Sicilian, Exchange Dragon 1.Nc3 Nf6 2.e4 c6 3.Nd5 cxd5 4.Bb5 Nc6 5.f3 g6 6.d4 Bh6 7.Bxh6 d6 C00 King Knight Opening 1.Nf3 C01 King Knight, Mrundersun Defence 1.Nf3 e5 C02 King Knight, Mrundersun Defence 1.Nf3 e5 2.Ng5 f5 C03 King Knight, Mrundersuns Defence 3.d4 1.Nf3 e5 2.Ng5 f5 3.d4 C04 King Knight 1.Nf3 f6 C05 King Knight, Kamikaze Attack 1.Nf3 f6 2.Nd4 C06 King Knight Kamikaze, 2...Nh6 1.Nf3 f6 2.Nd4 Nh6 C07 Exchange Variation 1.Nf3 f6 2.Nd4 Nh6 3.Nf5 Nxf5 C08 Exchange with 4.d4 1.Nf3 f6 2.Nd4 Nh6 3.Nf5 Nxf5 4.d4 C09 Exchange with 4.e4 1.Nf3 f6 2.Nd4 Nh6 3.Nf5 Nxf5 4.e4 C10 Exchange, 4. Nc3 1.Nf3 f6 2.Nd4 Nh6 3.Nf5 Nxf5 4.Nc3 c6 C11 Exchange, Szura Attack 1.Nf3 f6 2.Nd4 Nh6 3.Nf5 Nxf5 4.Nc3 c6 5.e4 C12 Exchange, Fianchetto Variation 1.Nf3 f6 2.Nd4 Nh6 3.Nf5 Nxf5 4.Nc3 c6 5.e4 g6 6.d4 Bh6 C13 Exchange, Fianchetto 1.Nf3 f6 2.Nd4 Nh6 3.Nf5 Nxf5 4.Nc3 c6 5.e4 g6 6.d4 Bh6 7.Bg5 C14 Trojanknight-Opossum Attack 1.Nf3 f6 2.Nd4 Nh6 3.e3 C15 Trojanknight-Opossum, 3...c6 Defence 1.Nf3 f6 2.Nd4 Nh6 3.e3 c6 C16 Trojanknight-Opossum, 3...c6 Defence Mainline 1.Nf3 f6 2.Nd4 Nh6 3.e3 c6 4.Nb5 C17 Trojanknight-Opossum, 3...c6 Mainline 1.Nf3 f6 2.Nd4 Nh6 3.e3 c6 4.Nb5 Ng4 5.f4 C18 Trojanknight-Opossum, Queen Sac Line 1.Nf3 f6 2.Nd4 Nh6 3.e3 c6 4.Qh5 g6 5.Nb5 C19 Trojanknight-Opossum Mainline 1.Nf3 f6 2.Nd4 Nh6 3.e3 Ng4 4.f4 C20 Trojanknight-Opossum, Mainline 1.Nf3 f6 2.Nd4 Nh6 3.e3 Ng4 4.f4 b5 C21 Trojanknight-Opossum, Mainline, 5.h3 Variation 1.Nf3 f6 2.Nd4 Nh6 3.e3 Ng4 4.f4 b5 5.h3 C22 Trojanknight-Opossum, Main Variation 1.Nf3 f6 2.Nd4 Nh6 3.e3 Ng4 4.f4 b5 5.Nf5 e5 6.Nxg7 h5 C23 King Knight, Two Knights Attack 1.Nf3 f6 2.Nc3 C24 King Knight, Two Knights, 2...c6 1.Nf3 f6 2.Nc3 c6 C25 King Knight, Three Knights 1.Nf3 f6 2.Nc3 Nh6 C26 King Knights, Three Knights Mainline 1.Nf3 f6 2.Nc3 Nh6 3.g4 c6 4.e3 C27 Three Knights, Regnmanden Line 1.Nf3 f6 2.Nc3 Nh6 3.g4 c6 4.Nd4 C28 King Knight, Three Knights, 4.e4 1.Nf3 f6 2.Nc3 Nh6 3.g4 c6 4.e4 C29 King Knight, Three Knights with 3.h3 1.Nf3 f6 2.Nc3 Nh6 3.h3 Ng4 4.hxg4 c6 C30 King Knight, Three Knights with 3.Ne5 1.Nf3 f6 2.Nc3 Nh6 3.Ne5 fxe5 C31 Center Attack 1.Nf3 f6 2.e4 C32 Center Attack 1.Nf3 f6 2.e4 d5 C33 Center Attack, Advance Variation, Nh6 1.Nf3 f6 2.e4 d5 3.e5 Nh6 C34 Center Attack, Advance Variation 3...e6 1.Nf3 f6 2.e4 d5 3.e5 e6 C35 MoltenThinker-ThoBjo Attack 1.Nf3 f6 2.d4 C36 MoltenThinker Line 1.Nf3 f6 2.d4 d5 3.g3 C37 Atomic Attack 1.Nf3 f6 2.e3 C38 Atomic Attack, Nightrider Defence 1.Nf3 f6 2.e3 e6 C39 Atomic Attack, Nightrider Defence, 3.Nd4 1.Nf3 f6 2.e3 e6 3.Nd4 C40 Atomic Attack, Two Knight Attack 1.Nf3 f6 2.e3 e6 3.Nd4 c6 4.Nc3 C41 Atomic Attack, 4.Nb5 1.Nf3 f6 2.e3 e6 3.Nd4 c6 4.Nb5 C42 Atomic Attack, Queen Sac Variation 1.Nf3 f6 2.e3 e6 3.Nd4 c6 4.Nb5 cxb5 5.Qh5 g6 6.Qb5 Nc6 7.Qb6 C43 Rekursiv Attack, 11...Ne7 Defence 1.Nf3 f6 2.e3 e6 3.Nd4 c6 4.Nb5 cxb5 5.Qh5 g6 6.Qb5 Nc6 7.Qb6 Kf7 8.Qc7 Bb4 9.c3 Qf8 10.Bc4 Bxc3 11.Nc3 Nge7 C44 Rekursiv Attack, 11...Nh6 Defence 1.Nf3 f6 2.e3 e6 3.Nd4 c6 4.Nb5 cxb5 5.Qh5 g6 6.Qb5 Nc6 7.Qb6 Kf7 8.Qc7 Bb4 9.c3 Qf8 10.Bc4 Bxc3 11.Nc3 Nh6 C45 Atomic Attack, Modern Defence 1.Nf3 f6 2.e3 d5 C46 Atomic Attack, Modern, 3.Nd4 1.Nf3 f6 2.e3 d5 3.Nd4 C47 Atomic Attack, Modern, 3.Ne5 1.Nf3 f6 2.e3 d5 3.Ne5 C48 Atomic Attack, Modern, 3.Nc3 1.Nf3 f6 2.e3 d5 3.Nc3 C49 Atomic Attack, Modern, 3.Ng5 1.Nf3 f6 2.e3 d5 3.Ng5 C50 Atomic Attack, Modern, 3...Bg4 Variation 1.Nf3 f6 2.e3 d5 3.Ng5 Bg4 4.f3 fxg5 C51 Atomic Attack, Modern 1.Nf3 f6 2.e3 d5 3.Ng5 fxg5 4.Qh5 g6 5.Qe5 Be6 C52 Atomic Attack, Modern, Mainline 1.Nf3 f6 2.e3 d5 3.Ng5 fxg5 4.Qh5 g6 5.Qe5 Be6 6.Qxc7 b5 C53 Atomic Attack, Modern, Mainline with 7.b3 1.Nf3 f6 2.e3 d5 3.Ng5 fxg5 4.Qh5 g6 5.Qe5 Be6 6.Qxc7 b5 7.b3 C54 Atomic Attack, Two Knights 1.Nf3 f6 2.e3 d5 3.Ng5 fxg5 4.Qh5 g6 5.Qe5 Be6 6.Qxc7 b5 7.Nc3 Nf6 C55 Atomic Attack, Modern Attack, TrojanKnight Variation 1.Nf3 f6 2.e3 d5 3.Ng5 fxg5 4.Qh5 g6 5.Qe5 Be6 6.Qxc7 b5 7.Nc3 Bf5 D00 TrojanKnight Opening 1.Nh3 D01 TrojanKnight, 1...e6 1.Nh3 e6 D02 TrojanKnight, Mrundersun Defence 1.Nh3 e5 D03 TrojanKnight, 1...c6 1.Nh3 c6 D04 TrojanKnight, Old Defence 1.Nh3 f6 D05 TrojanKnight, Old Defence, 2.d4 1.Nh3 f6 2.d4 D06 TrojanKnight, Old Defence, 2.e4 1.Nh3 f6 2.e4 D07 TrojanKnight, Old Defence, 2.e4 e6 1.Nh3 f6 2.e4 e6 D08 TrojanKnight, Old Defence, 2.e4 d5 1.Nh3 f6 2.e4 d5 D09 TrojanKnight,Old Defence,Center Variation 1.Nh3 f6 2.e4 d5 3.d4 D10 TCK System 1.Nh3 f6 2.e4 d5 3.Na3 D11 TCK System 1.Nh3 f6 2.e4 d5 3.Na3 b5 4.d4 D12 TCK System, Tipau Defence 1.Nh3 f6 2.e4 d5 3.Na3 b5 4.d4 Nh6 5.Bxh6 e5 D13 TrojanKnight, Tipau Attack 1.Nh3 f6 2.e4 d5 3.Nc3 D14 TrojanKnight, Tipau Attack Mainline 1.Nh3 f6 2.e4 d5 3.Nc3 b5 4.d4 D15 TrojanKnight, Tipau Attack, TrojanKnight Defence 1.Nh3 f6 2.e4 d5 3.Nc3 b5 4.d4 Nh6 5.Bxh6 e5 6.exd5 Bg4 7.f3 Bd6 D16 TrojanKnight, Old Defence, 2.e3 1.Nh3 f6 2.e3 D17 TrojanKnight, Old Defence,2.e3 1.Nh3 f6 2.e3 e6 D18 TrojanKnight, Old Defence, Szura Attac 1.Nh3 f6 2.e3 e6 3.Bd3 D19 WildKiller Attack 1.Nh3 f6 2.Nc3 D20 WildKiller Attack, 2...c6 1.Nh3 f6 2.Nc3 c6 D21 WildKiller Attack, 2...c6 Mainline 1.Nh3 f6 2.Nc3 c6 3.e3 D22 WildKiller Attack, Three Knight Defence 1.Nh3 f6 2.Nc3 Nh6 D23 WildKiller Attack, Three Knights, 3.e3 Variation 1.Nh3 f6 2.Nc3 Nh6 3.e3 Ng4 4.f4 c6 D24 WildKiller Attack, Mainline 1.Nh3 f6 2.Nc3 Nh6 3.Nd5 e6 4.c3 Ng4 5.f3 D25 WildKiller Attack with 6.d4 1.Nh3 f6 2.Nc3 Nh6 3.Nd5 e6 4.c3 Ng4 5.f3 Bc5 6.d4 D26 WildKiller Attack, 6.d4 8.Ng5 1.Nh3 f6 2.Nc3 Nh6 3.Nd5 e6 4.c3 Ng4 5.f3 Bc5 6.d4 Nf2 7.Qa4 c6 8.Ng5 D27 WildKiller Attack with 6.e3 1.Nh3 f6 2.Nc3 Nh6 3.Nd5 e6 4.c3 Ng4 5.f3 Bc5 6.e3 D28 WildKiller Attack, 6.e3 8.Ng5 1.Nh3 f6 2.Nc3 Nh6 3.Nd5 e6 4.c3 Ng4 5.f3 Bc5 6.e3 Nf2 7.Qa4 c6 8.Ng5 D29 TrojanKnight, Modern Defence 1.Nh3 h6 D30 TrojanKnight, Modern Defence, 2.d4 1.Nh3 h6 2.d4 D31 TrojanKnight, Modern Defence, 2.e4 1.Nh3 h6 2.e4 D32 TrojanKnight, Modern, Center Variation 1.Nh3 h6 2.e4 d5 3.d4 D33 TrojanKnight, Modern, Tipau Attack 1.Nh3 h6 2.e4 d5 3.Nc3 D34 TrojanKnight, Modern, TCK Invite 1.Nh3 h6 2.e4 d5 3.Na3 D35 TrojanKnight, French Defence 1.Nh3 h6 2.e4 e6 D36 TrojanKnight, Two Knights Attack 1.Nh3 h6 2.Nc3 D37 TrojanKnight, Two Knights Attack, 2...e6 1.Nh3 h6 2.Nc3 e6 D38 TrojanKnight, Two Knights Attack, 5...Qxc2 1.Nh3 h6 2.Nc3 e6 3.Nb5 Qh4 4.g3 Qe4 5.e3 Qxc2 D39 TrojanKnight, Two Knights Attack with 5...a6 1.Nh3 h6 2.Nc3 e6 3.Nb5 Qh4 4.g3 Qe4 5.e3 a6 D40 TrojanKnight, Pin Variation 1.Nh3 h6 2.Nc3 e6 3.d4 Bb4 4.e4 D41 TrojanKnight, Pin Variation with g3 1.Nh3 h6 2.Nc3 e6 3.d4 Bb4 4.e4 d5 5.g3 D43 TrojanKnight, Pin Variation with Bb5 1.Nh3 h6 2.Nc3 e6 3.d4 Bb4 4.e4 d5 5.Bb5 c6 6.O-O D44 TrojanKnight, Modern with 2.e3 1.Nh3 h6 2.e3 D45 TrojanKnight, Modern with 2.e3 1.Nh3 h6 2.e3 e6 D46 TrojanKnight, Modern with 2.e3, Two Knights Attack 1.Nh3 h6 2.e3 e6 3.Nc3 D47 TrojanKnight,Modern with 2.e3, 3.Nf4 Attack 1.Nh3 h6 2.e3 e6 3.Nf4 g6 D48 TrojanKnight,Modern with 2.e3, Two Knights Deferred 1.Nh3 h6 2.e3 e6 3.Nf4 g6 4.Nc3 D49 TrojanKnight,Modern with 2.e3 Mainline 1.Nh3 h6 2.e3 e6 3.Nf4 g6 4.Nh5 D50 TrojanKnight, Modern with 2.e3, Queen Tango Variation 1.Nh3 h6 2.e3 e6 3.Nf4 g6 4.Nh5 Qh4 5.g3 Qe4 6.Ng7 Kd8 7.d3