├── C40 - 1.e4 e5 2.Nf3 - King's Knight Opening [+0.36] · 84 parties
│ ├── C40c - 2…Qe7 - Gunderam Defense (1960) [+1.08] · 8 parties
│ │ ├── C40c - 3.* - Gunderam Defense · 1 partie
│ ├── C40e - 2…d5 - Elephant Gambit (1913) [+0.99] · 23 parties
│ │ ├── C40e - 3.* - Elephant Gambit · 2 parties
│ │ ├── C40f - 3.Nxe5 - Elephant Gambit (1937) [+0.63] · 8 parties
│ │ │ ├── C40f - 3…* - Elephant Gambit · 6 parties
│ │ └── C40g - 3.exd5 - Elephant Gambit (1960) [+0.96] · 13 parties
│ │ ├── C40g - 3…* - Elephant Gambit · 1 partie
│ └── C40j - 2…f5 - Latvian Gambit [+1.37] · 48 parties
│ ├── C40m - 3.d4 - Mason Countergambit [+0.42] · 5 parties
│ ├── C40n - 3.exf5 - Latvian Gambit Accepted (1936) [+1.42] · 5 parties
│ │ ├── C40n - 3…* - Latvian Gambit Accepted · 2 parties
│ ├── C40o - 3.Bc4 - Mayet Attack [+0.96] · 4 parties
│ │ └── C40p - 3…fxe4 - Latvian Gambit [+1.08] · 1 partie
│ │ └── C40q - 4.Nxe5 Qg5 - Poisoned Pawn Variation [+1.43] · 1 partie
│ └── C40r - 3.Nxe5 - Latvian Gambit (1964) [+1.47] · 34 parties
│ ├── C40r - 3…* - Latvian Gambit · 1 partie
│ └── C40t - 3…Qf6 - Latvian Gambit [+1.61] · 29 parties
│ └── C40u - 4.d4 - Main Line [+1.64] · 20 parties
│ └── C40u - 4…d6 - Latvian Gambit (1937) [+1.59] · 20 parties
│ ├── C40u - 5.* - Latvian Gambit · 1 partie
│ └── C40u - 5.Nc4 - Bilguer Variation [+1.50] · 19 parties
│ └── C40u - 5…fxe4 - Latvian Gambit [+1.50] · 19 parties
├── C41 - 1.e4 e5 2.Nf3 d6 - Philidor Defense [+0.40] · 677 parties
│ ├── C41b - 3.Bc4 - Philidor Defense (1900) [+0.34] · 23 parties
│ │ ├── C41b - 3…* - Philidor Defense · 22 parties
│ └── C41c - 3.d4 - Philidor Defense (1904) [+0.41] · 650 parties
│ ├── C41c - 3…* - Philidor Defense · 8 parties
│ ├── C41d - 3…f5 - Philidor Countergambit (1962) [+1.68] · 3 parties
│ │ ├── C41d - 4.* - Philidor Countergambit · 1 partie
│ │ └── C41e - 4.dxe5 - Philidor Countergambit [+1.38] · 1 partie
│ ├── C41f - 3…Nd7 - Hanham Variation (1900) [+0.58] · 131 parties
│ │ ├── C41f - 4.* - Hanham Variation · 18 parties
│ │ └── C41f - 4.Bc4 - Hanham (1900) [+0.76] · 113 parties
│ │ ├── C41f - 4…* - Hanham · 25 parties
│ │ └── C41g - 4…c6 - Hanham (1900) [+0.72] · 88 parties
│ │ ├── C41g - 5.* - Hanham · 14 parties
│ │ ├── C41g - 5.Nc3 - Philidor Defense: Hanham Variation, Schlechter Variation (1905) [+0.82] · 16 parties
│ │ ├── C41g - 5.Ng5 - Philidor Defense: Hanham, Kmoch Variation (1902) [+0.82] · 5 parties
│ │ │ └── C41g - 5…* - Hanham, Kmoch Variation · 5 parties
│ │ ├── C41g - 5.O-O - Philidor Defense: Hanham Variation, Krause Variation (1901) [+0.84] · 37 parties
│ │ │ ├── C41g - 5…* - Hanham Variation, Krause Variation · 24 parties
│ │ └── C41g - 5.c3 - Philidor Defense: Hanham Variation, Delmar Variation (1907) [+0.47] · 16 parties
│ ├── C41h - 3…exd4 - Exchange Variation [+0.63] · 153 parties
│ │ ├── C41i - 4.Qxd4 - Morphy Variation (1924) [+0.42] · 9 parties
│ │ │ ├── C41i - 4…* - Morphy Variation · 4 parties
│ │ │ └── C41i - 4…Nf6 - Morphy (1952) [+0.47] · 4 parties
│ │ │ ├── C41i - 5.* - Morphy · 1 partie
│ │ └── C41j - 4.Nxd4 - Exchange Variation (1956) [+0.81] · 144 parties
│ │ ├── C41j - 4…* - Exchange Variation · 2 parties
│ │ ├── C41k - 4…Nf6 - Exchange Variation (1937) [+0.80] · 138 parties
│ │ │ ├── C41k - 5.* - Exchange Variation · 2 parties
│ │ │ └── C41k - 5.Nc3 - Philidor (1903) [+0.77] · 136 parties
│ │ │ ├── C41k - 5…* - Philidor · 14 parties
│ │ │ └── C41k - 5…Be7 - Philidor (1900) [+0.82] · 122 parties
│ │ │ ├── C41k - 6.* - Philidor · 53 parties
│ │ │ └── C41m - 6.Be2 - Antoshin Variation (1903) [+0.38] · 51 parties
│ │ │ └── C41m - 6…* - Antoshin Variation · 51 parties
│ └── C41o - 3…Nf6 - Nimzowitsch Variation (1911) [+0.71] · 355 parties
│ ├── C41o - 4.* - Nimzowitsch Variation · 1 partie
│ ├── C41p - 4.dxe5 - Nimzowitsch Variation (1914) [+0.54] · 39 parties
│ │ ├── C41p - 4…* - Nimzowitsch Variation · 9 parties
│ └── C41q - 4.Nc3 - Nimzowitsch Variation (1957) [+0.49] · 313 parties
│ ├── C41q - 4…* - Nimzowitsch Variation · 1 partie
│ └── C41r - 4…Nbd7 - Philidor Defense: Lion Variation (1902) [+0.53] · 312 parties
│ ├── C41r - 5.* - Lion Variation · 61 parties
│ └── C41s - 5.Bc4 - Improved Hanham (1910) [+0.50] · 251 parties
│ ├── C41s - 5…* - Improved Hanham · 22 parties
│ └── C41s - 5…Be7 - Improved Hanham (1901) [+0.52] · 229 parties
│ ├── C41s - 6.* - Improved Hanham · 13 parties
│ ├── C41s - 6.Bxf7+ - Philidor Defense: Lion Variation, Bishop Sacrifice (1955) [-0.95] · 3 parties
│ ├── C41s - 6.Ng5 - Improved Hanham [+0.00] · 1 partie
│ │ └── C41s - 6…O-O 7.Bxf7+ - Philidor Defense: Nimzowitsch, Larobok Variation (1941) [-0.30] · 1 partie
│ ├── C41s - 6.dxe5 - Improved Hanham [+0.28] · 11 parties
│ └── C41t - 6.O-O - Improved Hanham 6.O-O (1922) [+0.57] · 201 parties
│ ├── C41t - 6…* - Improved Hanham 6.O-O · 30 parties
│ └── C41u - 6…O-O - Improved Hanham, Main Line (1904) [+0.54] · 171 parties
│ ├── C41u - 7.* - Improved Hanham, Main Line · 25 parties
│ ├── C41v - 7.a4 - Improved Hanham (1965) [+0.55] · 66 parties
│ │ ├── C41v - 7…* - Improved Hanham · 16 parties
│ │ └── C41v - 7…c6 - Improved Hanham (1929) [+0.51] · 50 parties
│ │ ├── C41v - 8.* - Improved Hanham · 30 parties
│ │ └── C41w - 8.Qe2 - Improved Hanham (1911) [-0.08] · 20 parties
│ │ ├── C41w - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.Qe2 c6 8.a4 exd4 - Improved Hanham, Sozin Variation (1938) [-0.06] · 4 parties
│ │ └── C41w - 8…* - Improved Hanham · 16 parties
│ └── C41x - 7.Re1 - Improved Hanham (1923) [+0.50] · 75 parties
│ ├── C41x - 7…* - Improved Hanham · 8 parties
│ └── C41x - 7…c6 8.a4 - Improved Hanham (1955) [+0.40] · 67 parties
│ ├── C41x - 8…* - Improved Hanham · 38 parties
├── C42 - 1.e4 e5 2.Nf3 Nf6 - Petrov's Defense [+0.41] · 1441 parties
│ ├── C42c - 3.Nc3 - Three Knights Game (1930) [+0.12] · 47 parties
│ │ ├── C42c - 3…* - Three Knights Game · 5 parties
│ │ └── C42c - 3…Bb4 - Russian-Three Knights Game (1903) [+0.41] · 42 parties
│ │ ├── C42c - 4.* - Russian-Three Knights Game · 16 parties
│ ├── C42e - 3.Bc4 - Italian Variation (1959) [-0.49] · 12 parties
│ │ ├── C42e - 3…* - Italian Variation · 2 parties
│ │ └── C42f - 3…Nxe4 4.Nc3 - Bishop's Opening: Boden-Kieseritzky Gambit (1938) [-0.77] · 10 parties
│ │ ├── C42f - 4…* - Bishop's Opening: Boden-Kieseritzky Gambit · 5 parties
│ └── C42g - 3.Nxe5 - Petrov's Defense (1953) [+0.36] · 1372 parties
│ ├── C42g - 3…* - Petrov's Defense · 11 parties
│ └── C42g - 3…d6 - Petrov's Defense (2018) [+0.41] · 1354 parties
│ ├── C42g - 4.* - Petrov's Defense · 15 parties
│ ├── C42h - 4.Nxf7 - Cochrane Gambit (1999) [-0.85] · 3 parties
│ │ ├── C42h - 4…* - Cochrane Gambit · 1 partie
│ └── C42j - 4.Nf3 - Petrov's Defense (1951) [+0.49] · 1301 parties
│ ├── C42j - 4…* - Petrov's Defense · 41 parties
│ ├── C42n - 4…Nxe4 5.Qe2 - Cozio Attack (1908) [+0.16] · 178 parties
│ │ ├── C42n - 5…* - Cozio Attack · 64 parties
│ │ ├── C42n - 5…Qe7 6.d3 Nf6 7.Bg5 Nbd7 - Russian Game: Milner-Barry Variation (1938) [+0.07] · 25 parties
│ └── C42p - 4…Nxe4 5.d4 - Classical Attack (1902) [+0.42] · 754 parties
│ ├── C42p - 5…* - Classical Attack · 31 parties
│ └── C42p - 5…d5 - Russian Game: Classical (1954) [+0.50] · 703 parties
│ ├── C42p - 6.* - Russian Game: Classical · 2 parties
│ └── C42q - 6.Bd3 - Russian Game: Classical (1910) [+0.33] · 701 parties
│ ├── C42q - 6…* - Russian Game: Classical · 58 parties
│ ├── C42q - 6…Bd6 - Petrov's Defense: Classical Attack, Marshall Variation (1900) [+0.50] · 208 parties
│ │ ├── C42q - 7.* - Classical Attack, Marshall Variation · 44 parties
│ │ ├── C42q - 7.O-O O-O 8.c4 Bg4 - Classical Attack, Tarrasch Variation (1910) [+0.80] · 20 parties
│ │ │ ├── C42q - 9.* - Classical Attack, Tarrasch Variation · 19 parties
│ │ └── C42r - 7.O-O O-O 8.c4 c6 - Classical Attack, Staunton Variation (1901) [+0.34] · 144 parties
│ └── C42s - 6…Be7 - Russian Game: Classical (1902) [+0.38] · 435 parties
│ ├── C42s - 7.* - Russian Game: Classical · 35 parties
│ ├── C42s - 7.O-O Nc6 - Russian Game: Classical (1904) [+0.38] · 371 parties
│ │ ├── C42s - 8.* - Russian Game: Classical · 60 parties
│ │ ├── C42t - 8.c4 - Classical, Jaenisch Variation (1904) [+0.36] · 201 parties
│ │ │ ├── C42t - 8…* - Russian Game: Classical, Jaenisch Variation · 66 parties
│ │ └── C42v - 8.Re1 - Petrov's Defense: Classical Attack, Chigorin Variation (2004) [+0.23] · 110 parties
│ │ ├── C42v - 8…* - Classical Attack, Chigorin Variation · 1 partie
│ │ └── C42w - 8…Bg4 - Russian Game: Classical, Chigorin (1903) [+0.16] · 83 parties
│ │ ├── C42w - 9.* - Russian Game: Classical, Chigorin · 3 parties
│ │ └── C42x - 9.c3 - Russian Game: Classical, Chigorin (1902) [+0.21] · 52 parties
│ │ ├── C42x - 9…* - Russian Game: Classical, Chigorin · 23 parties
│ │ ├── C42x - 9…f5 10.Nbd2 - Petrov's Defense: Classical Attack, Berger Variation (1902) [+0.00] · 18 parties
│ │ └── C42x - 9…f5 10.c4 - Classical, Krause Variation (1902) [-0.60] · 11 parties
│ │ ├── C42x - 10…* - Russian Game: Classical, Krause Variation · 7 parties
│ │ └── C42x - 10…Bh4 - Petrov's Defense: Classical Attack, Maróczy Variation (1903) [-0.60] · 4 parties
│ └── C42s - 7.O-O O-O - Petrov's Defense: Classical Attack, Mason Variation (1902) [+0.40] · 29 parties
├── C43 - 1.e4 e5 2.Nf3 Nf6 3.d4 - Petrov's Defense: Modern Attack [+0.26] · 475 parties
│ ├── C43b - 3…exd4 - Modern Attack (1901) [+0.36] · 208 parties
│ │ ├── C43b - 4.* - Modern Attack · 7 parties
│ │ ├── C43c - 4.e5 Ne4 - Modern Attack · 37 parties
│ │ └── C43c - 4.e5 Ne4 - Modern Attack (1941) [+0.43] · 164 parties
│ │ ├── C43c - 5.Qe2 - Petrov's Defense: Modern Attack, Steinitz Variation (1963) [+0.38] · 10 parties
│ │ │ ├── C43c - 5…* - Modern Attack, Steinitz Variation · 3 parties
│ │ └── C43d - 5.Qxd4 - Petrov's Defense: Modern Attack, Center Attack (1902) [+0.47] · 152 parties
│ │ ├── C43d - 5…* - Modern Attack, Center Attack · 82 parties
│ │ └── C43e - 5…d5 6.exd6 Nxd6 7.Nc3 - Modern Attack, Main Line (1904) [+0.44] · 70 parties
│ │ ├── C43e - 7…* - Modern Attack, Main Line · 48 parties
│ └── C43f - 3…Nxe4 - Russian Game: Modern Attack (1938) [+0.33] · 264 parties
│ └── C43g - 4.Bd3 - Petrov's Defense: Modern Attack, Center Variation [+0.28] · 264 parties
│ ├── C43g - 4…Nc6 - Modern Attack, Murrey Variation (1998) [+0.25] · 10 parties
│ │ ├── C43g - 5.* - Modern Attack, Murrey Variation · 8 parties
│ └── C43i - 4…d5 - Modern Attack [+0.34] · 254 parties
│ └── C43j - 5.Nxe5 - Russian Game: Modern Attack (1928) [+0.31] · 226 parties
│ ├── C43j - 5…* - Russian Game: Modern Attack · 10 parties
│ ├── C43m - 5…Bd6 - Russian Game: Modern Attack (1900) [+0.32] · 72 parties
│ │ ├── C43m - 6.* - Russian Game: Modern Attack · 58 parties
│ │ └── C43n - 6.O-O O-O 7.c4 Bxe5 - Petrov's Defense: Modern Attack, Trifunovic Variation (1924) [+0.68] · 14 parties
│ └── C43o - 5…Nd7 - Russian Game: Modern Attack (1938) [+0.27] · 100 parties
│ ├── C43o - 6.* - Russian Game: Modern Attack · 39 parties
│ └── C43q - 6.Nxd7 - Russian Game: Modern Attack (1963) [+0.26] · 55 parties
│ ├── C43q - 6…* - Russian Game: Modern Attack · 7 parties
│ └── C43r - 6…Bxd7 7.O-O - Modern Attack, Main Line (1998) [+0.27] · 48 parties
│ ├── C43r - 7…* - Modern Attack, Main Line · 6 parties
│ └── C43t - 7…Bd6 - Modern Attack, Main Line (1997) [+0.43] · 35 parties
│ ├── C43t - 8.* - Modern Attack, Main Line · 13 parties
├── C44 - 1.e4 e5 2.Nf3 Nc6 - King's Knight Opening: Normal Variation [+0.29] · 561 parties
│ ├── C44a - 3.* - Normal Variation (1965) · 1 partie
│ ├── C44c - 3.Be2 - Tayler Opening (1905) [-0.14] · 21 parties
│ │ ├── C44c - 3…* - Tayler Opening · 20 parties
│ ├── C44d - 3.d3 - Open Game: Inverted Philidor (1955) [-0.21] · 140 parties
│ │ ├── C44d - 3…* - Open Game: Inverted Philidor · 7 parties
│ │ └── C44e - 3…Nf6 - Open Game: Inverted Philidor (1921) [-0.20] · 131 parties
│ │ ├── C44e - 4.* - Open Game: Inverted Philidor · 14 parties
│ │ └── C44g - 4.Be2 - Open Game: Inverted Philidor (1910) [-0.30] · 62 parties
│ │ ├── C44g - 4…* - Open Game: Inverted Philidor · 25 parties
│ │ └── C44h - 3.Be2 Nf6 4.d3 d5 5.Nbd2 - Tayler Opening, Inverted Hanham (1911) [-0.37] · 37 parties
│ ├── C44i - 3.c3 - Ponziani Opening (1902) [-0.28] · 172 parties
│ │ ├── C44i - 3…* - Ponziani Opening · 6 parties
│ │ ├── C44j - 3…f5 - Ponziani Countergambit (1901) [+0.27] · 7 parties
│ │ │ ├── C44j - 4.* - Ponziani Countergambit · 6 parties
│ │ │ └── C44j - 4.d4 d6 5.d5 - Schmidt Attack (1905) [+0.31] · 1 partie
│ │ │ └── C44j - 5…* - Ponziani Countergambit, Schmidt Attack · 1 partie
│ │ ├── C44k - 3…d5 - Ponziani (1913) [-0.34] · 47 parties
│ │ │ ├── C44k - 4.* - Ponziani · 9 parties
│ │ │ └── C44l - 4.Qa4 - Ponziani (1901) [-0.29] · 38 parties
│ │ │ ├── C44l - 4…* - Ponziani · 13 parties
│ │ └── C44n - 3…Nf6 - Jaenisch Counterattack (1900) [-0.21] · 110 parties
│ │ ├── C44n - 4.* - Ponziani Opening: Jaenisch Counterattack · 14 parties
│ │ └── C44n - 4.d4 - Ponziani (1900) [-0.22] · 96 parties
│ │ ├── C44n - 4…* - Ponziani · 37 parties
│ │ └── C44p - 4…Nxe4 - Ponziani (1900) [-0.13] · 43 parties
│ │ ├── C44p - 5.* - Ponziani · 26 parties
│ └── C44r - 3.d4 - Scotch Game (1961) [+0.14] · 220 parties
│ ├── C44r - 3…* - Scotch Game · 2 parties
│ └── C44t - 3…exd4 - Scotch Game (1967) [+0.08] · 215 parties
│ ├── C44t - 4.c3 - Göring Gambit (1920) [-0.18] · 130 parties
│ │ ├── C44t - 4…* - Scotch Game: Göring Gambit · 2 parties
│ │ └── C44w - 4…dxc3 - Goring Gambit [-0.39] · 57 parties
│ │ ├── C44w - 5.Bc4 - Scotch Game: Göring Gambit, Double Pawn Sacrifice (1903) [-0.48] · 21 parties
│ │ │ ├── C44w - 5…* - Scotch Game: Göring Gambit, Double Pawn Sacrifice · 18 parties
│ │ └── C44w - 5.Nxc3 - Scotch: Goring Gambit (1907) [-0.41] · 36 parties
│ │ ├── C44w - 5…* - Scotch: Goring Gambit · 14 parties
│ │ └── C44w - 5…Bb4 - Göring Gambit, Main Line (1959) [-0.18] · 22 parties
│ │ ├── C44w - 6.* - Scotch Game: Göring Gambit, Main Line · 2 parties
│ │ └── C44w - 6.Bc4 d6 - Goring Gambit (1956) [-0.16] · 10 parties
│ │ ├── C44w - 7.* - Scotch: Goring Gambit · 4 parties
│ └── C44x - 4.Bc4 - Scotch Gambit (1914) [-0.03] · 76 parties
│ ├── C44x - 4…* - Scotch Gambit · 28 parties
│ └── C44y - 4…Bc5 - Haxo Gambit [+0.01] · 46 parties
│ ├── C44y - 5.Ng5 - Scotch Gambit, Sarratt Variation (1914) [-0.10] · 7 parties
│ │ └── C44y - 5…* - Scotch Gambit, Sarratt Variation · 7 parties
│ ├── C44y - 5.O-O - Scotch Gambit (1900) [-0.54] · 19 parties
│ │ ├── C44y - 5…* - Scotch Gambit · 17 parties
│ └── C44z - 5.c3 - Scotch Gambit (1914) [-0.04] · 20 parties
│ ├── C44z - 5…* - Scotch Gambit · 8 parties
├── C45 - 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 - Scotch Game [+0.08] · 708 parties
│ ├── C45b - 4…Nxd4 - Scotch (1900) [+0.59] · 9 parties
│ │ └── C45b - 5.* - Scotch · 9 parties
│ ├── C45e - 4…Qh4 - Steinitz Variation (1965) [+0.87] · 7 parties
│ │ ├── C45e - 5.* - Steinitz Variation · 2 parties
│ │ └── C45g - 5.Nb5 - Horwitz Attack [+0.43] · 3 parties
│ │ ├── C45g - 5…Bb4+ - Steinitz (1964) [+0.35] · 1 partie
│ │ │ └── C45g - 6.* - Steinitz · 1 partie
│ ├── C45h - 4…Nf6 - Schmidt Variation (1952) [+0.04] · 283 parties
│ │ ├── C45h - 5.* - Schmidt Variation · 2 parties
│ │ └── C45h - 5.Nxc6 - Scotch (1952) [-0.06] · 281 parties
│ │ ├── C45h - 5…* - Scotch · 10 parties
│ │ └── C45j - 5…bxc6 6.e5 - Mieses Variation (1907) [+0.11] · 157 parties
│ │ ├── C45j - 6…* - Mieses Variation · 16 parties
│ │ └── C45j - 6…Qe7 - Mieses [+0.08] · 141 parties
│ │ └── C45j - 7.Qe2 - Mieses (1907) [+0.08] · 141 parties
│ │ ├── C45j - 7…* - Mieses · 47 parties
│ │ └── C45k - 7…Nd5 8.c4 - Mieses (1950) [-0.16] · 94 parties
│ │ ├── C45k - 8…* - Mieses · 50 parties
│ │ └── C45l - 8…Ba6 - Mieses (1963) [+0.16] · 44 parties
│ │ ├── C45l - 9.* - Mieses · 17 parties
│ └── C45n - 4…Bc5 - Classical Variation (1979) [+0.30] · 354 parties
│ ├── C45n - 5.* - Classical Variation · 4 parties
│ ├── C45o - 5.Nb3 - Potter Variation (1954) [+0.26] · 126 parties
│ │ ├── C45o - 5…* - Potter Variation · 5 parties
│ │ └── C45p - 5…Bb6 - Scotch (1937) [+0.30] · 112 parties
│ │ ├── C45p - 6.* - Scotch · 51 parties
│ │ └── C45p - 6.a4 - Scotch (1954) [+0.15] · 61 parties
│ │ ├── C45p - 6…* - Scotch · 31 parties
│ │ └── C45q - 6…a6 - Scotch (1957) [+0.15] · 30 parties
│ │ ├── C45q - 7.* - Scotch · 7 parties
│ │ └── C45q - 7.Nc3 - Scotch (1954) [+0.15] · 23 parties
│ │ ├── C45q - 7…* - Scotch · 14 parties
│ ├── C45r - 5.Nxc6 - Scotch (1901) [+0.22] · 81 parties
│ │ ├── C45r - 5…* - Scotch · 55 parties
│ │ └── C45s - 5…Qf6 6.Qd2 - Scotch (1959) [-0.06] · 26 parties
│ │ ├── C45s - 6…* - Scotch · 11 parties
│ └── C45u - 5.Be3 - Scotch (1903) [+0.25] · 143 parties
│ ├── C45u - 5…* - Scotch · 17 parties
│ └── C45v - 5…Qf6 6.c3 - Scotch (1902) [+0.22] · 121 parties
│ ├── C45v - 6…* - Scotch · 6 parties
│ └── C45w - 6…Nge7 - Scotch (1913) [+0.20] · 115 parties
│ ├── C45w - 7.* - Scotch · 23 parties
│ ├── C45w - 7.Bb5 - Paulsen Attack (1901) [+0.14] · 7 parties
│ │ └── C45w - 7…* - Paulsen Attack · 7 parties
│ └── C45x - 7.Bc4 - Scotch (1908) [+0.18] · 50 parties
│ ├── C45x - 7…* - Scotch · 24 parties
├── C46 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 - Three Knights Opening [+0.09] · 210 parties
│ ├── C46c - 3…d6 - Three Knights (1932) [+0.59] · 31 parties
│ │ ├── C46c - 4.* - Three Knights · 10 parties
│ ├── C46e - 3…Bc5 - Three Knights (1901) [+0.56] · 24 parties
│ │ ├── C46e - 4.* - Three Knights · 1 partie
│ ├── C46g - 3…Bb4 - Three Knights Opening (1902) [+0.43] · 61 parties
│ │ ├── C46g - 4.* - Three Knights Opening · 22 parties
│ │ └── C46h - 4.Nd5 - Three Knights (1910) [+0.39] · 39 parties
│ │ ├── C46h - 4…* - Three Knights · 23 parties
│ └── C46i - 3…g6 - Steinitz Defense (1911) [+1.04] · 82 parties
│ ├── C46i - 4.* - Steinitz Defense · 5 parties
│ └── C46j - 4.d4 - Steinitz (1957) [+0.94] · 77 parties
│ ├── C46j - 4…* - Steinitz · 1 partie
│ ├── C46k - 4…exd4 5.Nd5 - Three Knights Opening: Steinitz-Rosenthal Variation (1914) [-0.01] · 39 parties
│ └── C46l - 4…exd4 5.Nxd4 - Steinitz [+0.87] · 37 parties
│ └── C46l - 5…Bg7 - Steinitz (1958) [+0.89] · 37 parties
│ ├── C46l - 6.* - Steinitz · 4 parties
│ └── C46l - 6.Be3 - Steinitz (1910) [+1.04] · 33 parties
│ ├── C46l - 6…* - Steinitz · 17 parties
├── C47 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 - Four Knights Game [+0.12] · 869 parties
│ ├── C47e - 4.g3 - Glek System (2015) [-0.20] · 38 parties
│ │ ├── C47e - 4…* - Glek System · 4 parties
│ │ └── C47g - 4…Bc5 - Glek [-0.29] · 22 parties
│ │ └── C47g - 5.Bg2 - Glek (1964) [-0.24] · 22 parties
│ │ ├── C47g - 5…* - Glek · 12 parties
│ └── C47i - 4.d4 - Scotch Variation [+0.03] · 682 parties
│ ├── C47j - 4…Bb4 - Scotch, Bogoljubow (1953) [+0.28] · 63 parties
│ │ ├── C47j - 5.* - Scotch, Bogoljubow · 5 parties
│ │ └── C47k - 5.Nxe5 - Four Knights Game: Scotch Variation, Krause Gambit (1907) [+0.29] · 36 parties
│ └── C47l - 4…exd4 - Scotch Variation Accepted [+0.01] · 619 parties
│ ├── C47l - 5.Nd5 - Scotch Variation, Belgrade Gambit (1950) [-0.33] · 52 parties
│ │ ├── C47l - 5…* - Scotch Variation, Belgrade Gambit · 3 parties
│ │ ├── C47m - 5…Nxe4 - Belgrade Gambit [-0.34] · 8 parties
│ └── C47o - 5.Nxd4 - Scotch (1916) [+0.03] · 567 parties
│ ├── C47o - 5…* - Scotch · 13 parties
│ └── C47r - 5…Bb4 - Scotch (1949) [+0.02] · 501 parties
│ ├── C47r - 6.* - Scotch · 4 parties
│ └── C47s - 6.Nxc6 bxc6 - Scotch (1901) [+0.06] · 497 parties
│ ├── C47s - 7.* - Scotch · 15 parties
│ └── C47s - 7.Bd3 - Main Line (1900) [+0.12] · 482 parties
│ ├── C47s - 7…* - Scotch, Main Line · 61 parties
│ └── C47t - 7…d5 - Scotch, Main Line (1920) [+0.12] · 421 parties
│ ├── C47t - 8.* - Scotch, Main Line · 91 parties
│ └── C47t - 8.exd5 cxd5 - Scotch, Main Line (1929) [+0.13] · 330 parties
│ ├── C47t - 9.* - Scotch, Main Line · 9 parties
│ └── C47u - 9.O-O O-O - Scotch, Main Line (1913) [+0.11] · 321 parties
│ ├── C47u - 10.* - Scotch, Main Line · 145 parties
│ └── C47v - 10.Bg5 c6 - Scotch, Main Line (1905) [+0.00] · 176 parties
│ ├── C47v - 11.* - Scotch, Main Line · 47 parties
│ └── C47x - 11.Qf3 - Scotch, Main Line (1908) [-0.10] · 121 parties
│ ├── C47x - 11…* - Scotch, Main Line · 59 parties
├── C48 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 - Four Knights Game: Spanish Variation [+0.11] · 510 parties
│ ├── C48a - 4…* - Spanish Variation (1906) · 51 parties
│ ├── C48a - 4…a6 5.Bxc6 - Spanish Variation, Ranken Variation (1903) [+0.29] · 20 parties
│ │ ├── C48a - 5…* - Spanish Variation, Ranken Variation · 15 parties
│ ├── C48b - 4…d6 - Spanish (1900) [+0.67] · 65 parties
│ │ ├── C48b - 5.* - Spanish · 9 parties
│ ├── C48d - 4…Bc5 - Spanish Variation, Classical Variation (2015) [+0.29] · 48 parties
│ │ ├── C48d - 5.* - Spanish Variation, Classical Variation · 3 parties
│ │ └── C48f - 5.O-O - Spanish, Classical Defence (1903) [+0.39] · 30 parties
│ │ ├── C48f - 5…* - Spanish, Classical Defence · 23 parties
│ └── C48g - 4…Nd4 - Spanish Variation, Rubinstein Variation [+0.12] · 326 parties
│ ├── C48h - 5.Nxe5 - Rubinstein (1907) [-0.55] · 25 parties
│ │ ├── C48h - 5…* - Rubinstein · 12 parties
│ ├── C48k - 5.Nxd4 - Spanish Variation, Rubinstein Variation Accepted (1922) [+0.05] · 135 parties
│ │ ├── C48k - 5…* - Spanish Variation, Rubinstein Variation Accepted · 7 parties
│ │ └── C48k - 5…exd4 6.e5 dxc3 7.exf6 - Rubinstein, Exchange Variation (1913) [-0.09] · 128 parties
│ │ ├── C48k - 7…* - Rubinstein, Exchange Variation · 27 parties
│ └── C48n - 5.Ba4 - Rubinstein [-0.30] · 102 parties
│ ├── C48o - 5…c6 - Rubinstein (1906) [-0.26] · 15 parties
│ │ ├── C48o - 6.* - Rubinstein · 7 parties
│ └── C48q - 5…Bc5 - Rubinstein (1903) [+0.15] · 66 parties
│ ├── C48q - 6.* - Rubinstein · 28 parties
└── C49 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 - Four Knights Game: Spanish Variation, Double Spanish [+0.11] · 674 parties
└── C49b - 5.O-O - Four Knights (1902) [+0.12] · 640 parties
├── C49b - 5…* - Four Knights · 12 parties
└── C49c - 5…O-O - Four Knights (1902) [+0.10] · 628 parties
├── C49c - 6.* - Four Knights · 8 parties
└── C49e - 6.d3 - Spanish Variation, Double Spanish (1908) [+0.18] · 550 parties
├── C49e - 6…* - Spanish Variation, Double Spanish · 27 parties
├── C49f - 6…Bxc3 - Spanish Variation (1902) [+0.27] · 78 parties
│ ├── C49f - 7.* - Spanish Variation · 36 parties
└── C49g - 6…d6 - Spanish Variation, Symmetrical Variation (1900) [+0.16] · 445 parties
├── C49g - 7.* - Spanish Variation, Symmetrical Variation · 23 parties
└── C49i - 7.Bg5 - Symmetrical (1910) [+0.05] · 345 parties
├── C49i - 7…* - Symmetrical · 7 parties
├── C49k - 7…Ne7 - Four Knights Game: Spanish Variation, Symmetrical Variation (1901) [+0.00] · 54 parties
│ ├── C49k - 8.* - Spanish Variation, Symmetrical Variation · 48 parties
│ └── C49k - 8.Nh4 c6 9.Bc4 d5 10.Bb3 Qd6 - Spanish Variation, Symmetrical Variation, Blake Variation (1911) [+0.14] · 6 parties
└── C49l - 7…Bxc3 - Symmetrical [+0.25] · 281 parties
└── C49l - 8.bxc3 - Symmetrical (1900) [+0.15] · 281 parties (dont 1 ici)
├── C49l - 8…* - Symmetrical · 60 parties
└── C49n - 8…Qe7 - Four Knights Game: Spanish Variation, Symmetrical Variation, Metger Unpin (1902) [+0.33] · 172 parties
├── C49n - 9.* - Spanish Variation, Symmetrical Variation, Metger Unpin · 56 parties
└── C49n - 9.Re1 Nd8 10.d4 - Symmetrical, Metger (1908) [+0.42] · 116 parties
├── C49n - 10…* - Symmetrical, Metger · 8 parties
├── C49o - 10…Bg4 - Four Knights Game: Spanish Variation, Symmetrical Variation (1906) [+0.47] · 25 parties
└── C49p - 10…Ne6 - Symmetrical, Metger (1907) [+0.45] · 83 parties
├── C49p - 11.* - Symmetrical, Metger · 25 parties
Les parties, variante par variante
11441 partiesC42 - 1.e4 e5 2.Nf3 Nf6 - Petrov's Defense
4677 partiesC41 - 1.e4 e5 2.Nf3 d6 - Philidor Defense
5674 partiesC49 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 - Four Knights Game: Spanish Variation, Double Spanish
1084 partiesC40 - 1.e4 e5 2.Nf3 - King's Knight Opening
-
C40 - 1.e4 e5 2.Nf3 - King's Knight Opening (84)
Base Masters : Blancs 80.0%, Nulles 20.0%, Noirs 0.0%. Coups candidats 3.Nxe5 (60.0%)3.Bc4 (20.0%)3.Nc3 (20.0%) auto Analyse coup par coup — 4 demi-coups commentés 1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nf3 Contrôle c4, d4, d5, e5. 2...Bc5 Contrôle d4, f4. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre● d5 (1v0), ● e5 (1v0)— Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 5)Bc8● Bc8 Non développé (mob.… -
C41 - 1.e4 e5 2.Nf3 d6 - Philidor Defense (677)
Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes—● d6→e5, c7→d6Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre● d5 (1v0)— Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 5)Bc8● Bc8 Non développé (mob. 5)Bf8● Bf8 Non développé (mob. 1)Paire de fous● Oui● OuiNon développées5 (● b1, ● c1, ● f1, ● a1, ● h1)6 (● b8, ● g8, ● c8, ● f8, ● a8, ● h8) Sécurité du roi ♔ Blancs♚ NoirsStatut● Au centre● Au centreDroits de roqueO-O / O-O-OO-O / O-O-O Thèmes ♔ Blancs♚ NoirsPhaseOuvertureCentreferméRuptures● d2-d4● ...d6-d5,… -
C42 - 1.e4 e5 2.Nf3 Nf6 - Petrov's Defense (1441)
Base Masters : Blancs 23.8%, Nulles 65.1%, Noirs 11.1%. Coups candidats 7.O-O (97.9% — Blancs: 23.7% | Nulles: 65.6% | Noirs: 10.7%)7.c4 (1.7% — Blancs: 25.8% | Nulles: 43.5% | Noirs: 30.6%)7.Nc3 (0.2% — Blancs: 14.3% | Nulles: 28.6% | Noirs: 57.1%)7.Nbd2 (0.1% — Blancs: 60.0% | Nulles: 20.0% | Noirs: 20.0%)7.h3 (0.1%)7.Ne5 auto Analyse coup par coup — 12 demi-coups commentés 1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nf3 Contrôle c4, d4, d5, e5. 2...Nf6 Contrôle d4, e4, f4, c5. 3.Nxe5 Capture pion en e5. 3...d6 Avancée centrale — contrôle c5, e5. Prépare e5, Nd7. 4.Nf3 Contrôle c4, d4, d5, f5.… -
C43 - 1.e4 e5 2.Nf3 Nf6 3.d4 - Petrov's Defense: Modern Attack (475)
Base Masters : Blancs 24.2%, Nulles 54.2%, Noirs 21.6%. Coups candidats 4.Nf3 (97.7% — Blancs: 24.3% | Nulles: 55.0% | Noirs: 20.7%)4.Qxd4 (1.2% — Blancs: 20.0% | Nulles: 20.0% | Noirs: 60.0%)4.e5 (0.9%)4.Bg5 (0.2%) auto Analyse coup par coup — 6 demi-coups commentés 1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Bc4 Contrôle d5, f5. 2...Nf6 Contrôle d4, e4, f4, c5. 3.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3. 3...exd4 Capture en d4 — résout la tension centrale. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes●… -
C44 - 1.e4 e5 2.Nf3 Nc6 - King's Knight Opening: Normal Variation (561)
Base Masters : Blancs 28.3%, Nulles 40.4%, Noirs 31.3%. Coups candidats 5...Bc5 (55.2% — Blancs: 26.9% | Nulles: 39.3% | Noirs: 33.8%)5...Be7 (23.9% — Blancs: 28.7% | Nulles: 42.5% | Noirs: 28.7%)5...g6 (10.4% — Blancs: 31.6% | Nulles: 44.7% | Noirs: 23.7%)5...dxe4 (4.1% — Blancs: 26.7% | Nulles: 46.7% | Noirs: 26.7%)5...Bd6 (2.5% — Blancs: 11.1% | Nulles: 44.4% | Noirs: 44.4%)5...a5 (1.6% — Blancs: 66.7% | Nulles: 16.7% | Noirs: 16.7%) auto Analyse coup par coup — 9 demi-coups commentés 1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nf3 Contrôle c4, d4, d5, e5. 2...Nc6 Contrôle d4, f4, c5. 3.Be2 Contrôle c4, d4, d5, e5. 3...Nf6 Contrôle d4, e4, f4, c5.… -
C45 - 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 - Scotch Game (708)
Base Masters : Blancs 19.1%, Nulles 61.3%, Noirs 19.6%. Coups candidats 6...bxc6 (99.8% — Blancs: 19.1% | Nulles: 61.3% | Noirs: 19.6%)6...dxc6 (0.1% — Blancs: 11.1% | Nulles: 44.4% | Noirs: 44.4%)6...Bxc3+ (0.1%) auto Analyse coup par coup — 11 demi-coups commentés 1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nf3 Contrôle c4, d4, d5, e5. 2...Nc6 Contrôle d4, f4, c5. 3.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3. 3...exd4 Capture en d4 — résout la tension centrale. 4.Nxd4 Capture pion en d4. 4...Nf6 Contrôle d4, e4, c5, d5. 5.Nc3… -
C47 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 - Four Knights Game (869)
Base Masters : Blancs 19.1%, Nulles 61.3%, Noirs 19.6%. Coups candidats 6...bxc6 (99.8% — Blancs: 19.1% | Nulles: 61.3% | Noirs: 19.6%)6...dxc6 (0.1% — Blancs: 11.1% | Nulles: 44.4% | Noirs: 44.4%)6...Bxc3+ (0.1%) auto Analyse coup par coup — 11 demi-coups commentés 1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nf3 Contrôle c4, d4, d5, e5. 2...Nc6 Contrôle d4, f4, c5. 3.Nc3 Contrôle c4, d4, d5, e5. 3...Nf6 Contrôle d4, e4, f4, c5. 4.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3. 4...exd4 Capture en d4 — résout la tension centrale.… -
C48 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 - Four Knights Game: Spanish Variation (510)
Base Masters : Blancs 28.3%, Nulles 39.5%, Noirs 32.2%. Coups candidats 5.d3 (51.6% — Blancs: 30.6% | Nulles: 37.3% | Noirs: 32.1%)5.O-O (29.1% — Blancs: 23.1% | Nulles: 44.0% | Noirs: 32.9%)5.a3 (13.7% — Blancs: 35.7% | Nulles: 40.8% | Noirs: 23.6%)5.d4 (3.0% — Blancs: 8.6% | Nulles: 34.3% | Noirs: 57.1%)5.Bxc6 (1.9% — Blancs: 27.3% | Nulles: 31.8% | Noirs: 40.9%)5.g4 (0.3% — Blancs: 25.0% | Nulles: 50.0% | Noirs: 25.0%) auto Analyse coup par coup — 8 demi-coups commentés 1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nf3 Contrôle c4, d4, d5, e5. 2...Nc6 Contrôle d4, f4, c5. 3.Nc3 Contrôle c4, d4, d5, e5. 3...Nf6 Contrôle d4, e4, f4, c5.… -
C49 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 - Four Knights Game: Spanish Variation, Double Spanish (674)
Base Masters : Blancs 32.9%, Nulles 49.3%, Noirs 17.8%. Coups candidats 5...bxc3 (80.8% — Blancs: 35.6% | Nulles: 50.8% | Noirs: 13.6%)5...dxc3 (17.8% — Blancs: 23.1% | Nulles: 38.5% | Noirs: 38.5%)5...Bxc6 (1.4%) auto Analyse coup par coup — 8 demi-coups commentés 1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nf3 Contrôle c4, d4, d5, e5. 2...Nc6 Contrôle d4, f4, c5. 3.Nc3 Contrôle c4, d4, d5, e5. 3...Nf6 Contrôle d4, e4, f4, c5. 4.Bb5 Contrôle c4, d4, d5, e5. 4...Bb4 Contrôle d4, e4, f4, c5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité——… -
C46 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 - Three Knights Opening (210)
Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes● b5 (2v0), ● d5 (2v0)● b4 (2v0), ● d4 (2v1)Cases faibles——Centre● d5 (2v0), ● e4 (1v0)● d4 (2v1) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 5)Bc8● Bc8 Non développé (mob. 0)Bf8● Bf8 Non développé (mob. 5)Paire de fous● Oui● OuiNon développées4 (● c1, ● f1, ● a1, ● h1)5 (● g8, ● c8, ● f8, ● a8, ● h8) Sécurité du roi ♔ Blancs♚ NoirsStatut● Au centre● Au centreDroits de roqueO-O /…