├── C40 - 1.e4 e5 2.Nf3 - Open Game [+0.36] [+0.36] (4)
│ ├── C40a - 2…f6 - Damiano Defence [+1.64] (0)
│ ├── C40a - 2.Nf3 [+0.39] [+0.39] (0)
│ ├── C40b - 2…Qf6 - Greco Defence [+1.25] (0)
│ ├── C40c - 2…Qe7 - Gunderam Defence [+1.08] (0)
│ ├── C40d - 2…Qe7 3.Nc3 - Gunderam Defence [+1.07] (1)
│ ├── C40e - 2…d5 - Elephant Gambit [+0.99] (0)
│ ├── C40f - 2…d5 3.Nxe5 - Elephant Gambit: [+0.63] (0)
│ ├── C40f - 2…d5 3.Nxe5 dxe4 4.Bc4 - Elephant Gambit: [+0.81] (0)
│ ├── C40g - 2…d5 3.exd5 - Elephant Gambit: [+0.96] (0)
│ ├── C40h - 2…d5 3.exd5 Bd6 - Elephant Gambit: Maroczy [+1.25] (0)
│ ├── C40i - 2…d5 3.exd5 e4 - Elephant Gambit: Paulsen [+0.93] (2)
│ ├── C40j - 2…f5 - Latvian Gambit [+1.37] (0)
│ ├── C40k - 2…f5 3.d3 - Latvian Gambit: [+0.17] (0)
│ ├── C40l - 2…f5 3.Nc3 - Latvian Gambit: [+1.33] [+1.33] (0)
│ ├── C40m - 2…f5 3.d4 - Latvian Gambit: [+0.42] (0)
│ ├── C40m - 2…f5 3.d4 fxe4 4.Nxe5 Nf6 - Latvian Gambit: [+0.37] (0)
│ ├── C40n - 2…f5 3.exf5 - Latvian Gambit: [+1.42] (0)
│ ├── C40n - 2…f5 3.exf5 e4 - Latvian Gambit: [+1.06] (0)
│ ├── C40o - 2…f5 3.Bc4 - Latvian Gambit: [+0.96] (0)
│ ├── C40o - 2…f5 3.Bc4 b5 - Latvian Gambit: Strautins Variation [+1.75] (0)
│ ├── C40o - 2…f5 3.Bc4 Nf6 - Latvian Gambit: Morgado Variation [+1.42] (0)
│ ├── C40p - 2…f5 3.Bc4 fxe4 - Latvian Gambit: [+1.08] (0)
│ ├── C40p - 2…f5 3.Bc4 fxe4 4.Nxe5 d5 - Latvian Gambit: Svedenborg Variation [+1.10] (0)
│ ├── C40p - 2…f5 3.Bc4 fxe4 4.Nxe5 d5 5.Qh5+ g6 6.Nxg6 hxg6 - Latvian Gambit: Svedenborg [+1.65] (0)
│ ├── C40p - 2…f5 3.Bc4 fxe4 4.Nxe5 d5 5.Qh5+ g6 6.Nxg6 Nf6 - Latvian Gambit: Svedenborg [+1.18] (0)
│ ├── C40p - 2…f5 3.Bc4 fxe4 4.Nxe5 Nf6 - Latvian: Blackburne Variation (Corkscrew Countergambit) [+2.19] (0)
│ ├── C40q - 2…f5 3.Bc4 fxe4 4.Nxe5 Qg5 - Latvian Gambit: Poisoned Pawn Variation [+1.43] (0)
│ ├── C40q - 2…f5 3.Bc4 fxe4 4.Nxe5 Qg5 5.d4 Qxg2 6.Qh5+ g6 7.Bf7+ Kd8 - Latvian Gambit: Poisoned Pawn Main Line [+1.18] (0)
│ ├── C40r - 2…f5 3.Nxe5 - Latvian Gambit: [+1.47] (0)
│ ├── C40s - 2…f5 3.Nxe5 Nc6 - Latvian Gambit: [+1.84] (0)
│ ├── C40t - 2…f5 3.Nxe5 Qf6 - Latvian Gambit: [+1.61] (0)
│ ├── C40t - 2…f5 3.Nxe5 Qf6 4.Nc4 - Latvian Gambit: [+1.58] (0)
│ ├── C40u - 2…f5 3.Nxe5 Qf6 4.d4 - Latvian Gambit: [+1.64] (0)
│ ├── C40u - 2…f5 3.Nxe5 Qf6 4.d4 d6 - Latvian Gambit: [+1.59] (0)
│ ├── C40u - 2…f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 - Latvian Gambit: [+1.50] (0)
│ ├── C40u - 2…f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 - Latvian Gambit: [+1.50] (0)
│ ├── C40v - 2…f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Be2 - Latvian Gambit: [+0.90] (0)
│ ├── C40w - 2…f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Ne3 - Latvian Gambit: Nimzowitsch Variation [+1.12] (0)
│ └── C40x - 2…f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Nc3 - Latvian Gambit: [+1.38] [+1.38] (1)
├── C41 - 1.e4 e5 2.Nf3 d6 - Philidor Defence [+0.40] [+0.40] (201)
│ ├── C41a - 2…d6 [+0.54] [+0.54] (1)
│ ├── C41b - 3.Bc4 Be7 4.c3 - Steinitz Variation [+0.23] [+0.23] (3)
│ ├── C41b - 3.Bc4 f5 - Lopez Countergambit [+2.02] (0)
│ ├── C41b - 3.Bc4 f5 4.d4 exd4 5.Ng5 Nh6 6.Nxh7 - Lopez Countergambit Jaenisch Variation [-0.34] (0)
│ ├── C41c - 3.d4 [+0.41] [+0.41] (0)
│ ├── C41d - 3.d4 f5 - Philidor Countergambit [+1.68] (0)
│ ├── C41d - 3.d4 f5 4.Nc3 - Philidor Countergambit Zukertort Variation [+1.36] (0)
│ ├── C41e - 3.d4 f5 4.dxe5 - Philidor Countergambit [+1.38] (0)
│ ├── C41e - 3.d4 f5 4.dxe5 fxe4 5.Ng5 d5 6.e6 - Philidor Countergambit del Rio Attack [+1.40] (0)
│ ├── C41e - 3.d4 f5 4.dxe5 fxe4 5.Ng5 d5 6.e6 Bc5 7.Nc3 - Philidor Countergambit Berger Variation [+0.91] (0)
│ ├── C41e - 3.d4 f5 4.dxe5 fxe4 5.Ng5 d5 6.Nc3 - Philidor Countergambit Steinitz Variation [+0.55] (0)
│ ├── C41f - 3.d4 Nd7 - Hanham Variation [+0.58] (0)
│ ├── C41f - 3.d4 Nd7 4.Bc4 - Hanham [+0.76] (0)
│ ├── C41g - 3.d4 Nd7 4.Bc4 c6 - Hanham [+0.72] (0)
│ ├── C41g - 3.d4 Nd7 4.Bc4 c6 5.c3 - Hanham Delmar Variation [+0.47] (0)
│ ├── C41g - 3.d4 Nd7 4.Bc4 c6 5.Nc3 - Hanham Schlechter Variation [+0.82] (0)
│ ├── C41g - 3.d4 Nd7 4.Bc4 c6 5.Ng5 - Hanham Kmoch Variation [+0.82] (0)
│ ├── C41g - 3.d4 Nd7 4.Bc4 c6 5.Ng5 Nh6 6.f4 Be7 7.O-O O-O 8.c3 d5 - Hanham Berger Variation [-0.87] (0)
│ ├── C41g - 3.d4 Nd7 4.Bc4 c6 5.O-O - Hanham Krause Variation [+0.84] (0)
│ ├── C41g - 3.d4 Nd7 4.Bc4 c6 5.O-O Be7 6.dxe5 - Hanham Steiner Variation [+1.17] (2)
│ ├── C41h - 3.d4 exd4 [+0.63] (0)
│ ├── C41h - 3.d4 exd4 4.c3 - Bird Gambit [-0.10] (0)
│ ├── C41i - 3.d4 exd4 4.Qxd4 - Morphy Variation [+0.42] (3)
│ ├── C41i - 3.d4 exd4 4.Qxd4 Nc6 - Morphy [+0.53] (0)
│ ├── C41i - 3.d4 exd4 4.Qxd4 Nf6 - Morphy [+0.47] (0)
│ ├── C41i - 3.d4 exd4 4.Qxd4 Nf6 5.Nc3 - Morphy [+0.48] (0)
│ ├── C41j - 3.d4 exd4 4.Nxd4 [+0.81] (0)
│ ├── C41j - 3.d4 exd4 4.Nxd4 d5 5.exd5 - Paulsen Attack [+1.17] (0)
│ ├── C41k - 3.d4 exd4 4.Nxd4 Nf6 [+0.80] [+0.80] (0)
│ ├── C41k - 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 [+0.77] (7)
│ ├── C41k - 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Be7 [+0.82] (31)
│ ├── C41l - 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Be7 6.Bc4 [+0.30] (5)
│ ├── C41m - 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Be7 6.Be2 - Antoshin Variation [+0.38] (16)
│ ├── C41m - 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Be7 6.Be2 O-O 7.O-O c5 8.Nf3 Nc6 9.Bg5 Be6 10.Re1 - Berger Variation [+0.08] (0)
│ ├── C41n - 3.d4 exd4 4.Nxd4 g6 - Larsen Variation [+0.85] (0)
│ ├── C41o - 3.d4 Nf6 - Nimzowitsch Variation [+0.71] (0)
│ ├── C41o - 3.d4 Nf6 4.Bc4 - Nimzowitsch Klein Variation [+0.18] (0)
│ ├── C41o - 3.d4 Nf6 4.Ng5 - Nimzowitsch Locock Variation [-0.29] [-0.29] (0)
│ ├── C41p - 3.d4 Nf6 4.dxe5 - Exchange Variation [+0.54] (1)
│ ├── C41p - 3.d4 Nf6 4.dxe5 Nxe4 5.Nbd2 - Exchange Sokolsky Variation [+0.36] (0)
│ ├── C41p - 3.d4 Nf6 4.dxe5 Nxe4 5.Qd5 - Exchange Rellstab Variation [+0.75] (2)
│ ├── C41q - 3.d4 Nf6 4.Nc3 - Nimzowitsch Variation [+0.49] (0)
│ ├── C41r - 3.d4 Nf6 4.Nc3 Nbd7 - Improved Hanham [+0.53] [+0.53] (22)
│ ├── C41s - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 - Improved Hanham [+0.50] (1)
│ ├── C41s - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 - Improved Hanham [+0.52] (1)
│ ├── C41s - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.Bxf7+ - Improved Hanham [-0.95] (0)
│ ├── C41s - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.dxe5 - Improved Hanham [+0.28] (0)
│ ├── C41s - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.dxe5 dxe5 - Improved Hanham [+0.40] (0)
│ ├── C41s - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.dxe5 Nxe5 - Improved Hanham [+0.39] (0)
│ ├── C41s - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.Ng5 - Improved Hanham [+0.00] (0)
│ ├── C41s - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.Ng5 O-O 7.Bxf7+ - Improved Hanham Larobok Variation [-0.30] (0)
│ ├── C41t - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O - Improved Hanham [+0.57] (5)
│ ├── C41u - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O - Improved Hanham Main Line [+0.54] (1)
│ ├── C41v - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.a4 - Improved Hanham [+0.55] (15)
│ ├── C41v - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.a4 c6 - Improved Hanham [+0.51] (32)
│ ├── C41w - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.a4 c6 8.Qe2 - Improved Hanham [-0.08] (0)
│ ├── C41w - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.Qe2 - Improved Hanham [+0.15] (2)
│ ├── 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 [-0.06] (1)
│ ├── C41x - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.Re1 c6 8.a4 - Improved Hanham [+0.40] [+0.40] (16)
│ ├── C41y - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.Re1 c6 8.a4 a5 - Improved Hanham [+0.52] (20)
│ └── C41z - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.Re1 c6 8.a4 b6 - Improved Hanham [+0.71] (7)
├── C42 - 1.e4 e5 2.Nf3 Nf6 - Russian Game (Petroff Defence) [+0.41] [+0.41] (955)
│ ├── C42a - 2…Nf6 [+0.44] [+0.44] (2)
│ ├── C42b - 3.d3 - Russian Game: [-0.23] [-0.23] (3)
│ ├── C42c - 3.Nc3 - Russian-Three Knights Game [+0.12] [+0.12] (2)
│ ├── C42c - 3.Nc3 Bb4 - Russian-Three Knights Game [+0.41] (2)
│ ├── C42d - 3.Nc3 Bb4 4.Nxe5 - Russian-Three Knights Game [+0.40] (8)
│ ├── C42e - 3.Bc4 - Russian Game: Italian Variation [-0.49] [-0.49] (0)
│ ├── C42f - 3.Bc4 Nxe4 4.Nc3 - Russian Game: Boden-Kieseritsky Gambit [-0.77] (0)
│ ├── C42f - 3.Bc4 Nxe4 4.Nc3 Nxc3 - Russian Game: Boden-Kieseritsky Gambit Accepted [-0.72] (0)
│ ├── C42g - 3.Nxe5 d6 - Russian Game: [+0.41] (15)
│ ├── C42g - 3.Nxe5 Nxe4 - Russian Game: Damiano Variation [+0.59] [+0.59] (9)
│ ├── C42h - 3.Nxe5 d6 4.Nxf7 - Russian Game: Cochrane Gambit [-0.85] (1)
│ ├── C42h - 3.Nxe5 d6 4.Nxf7 Kxf7 5.d4 - Russian Game: Cochrane Gambit [-1.05] (2)
│ ├── C42i - 3.Nxe5 d6 4.Nc4 - Russian Game: Paulsen Attack [-0.09] [-0.09] (17)
│ ├── C42j - 3.Nxe5 d6 4.Nf3 - Russian Game: [+0.49] (42)
│ ├── C42k - 3.Nxe5 d6 4.Nf3 Nxe4 5.d3 - Russian Game: French Attack [+0.10] [+0.10] (0)
│ ├── C42l - 3.Nxe5 d6 4.Nf3 Nxe4 5.c4 - Russian Game: Vienna/Kaufmann [+0.10] [+0.10] (7)
│ ├── C42m - 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3 - Russian Game: Nimzowitsch Attack [+0.12] [+0.12] (237)
│ ├── C42n - 3.Nxe5 d6 4.Nf3 Nxe4 5.Qe2 - Russian Game: Cozio/Lasker [+0.16] [+0.16] (12)
│ ├── C42n - 3.Nxe5 d6 4.Nf3 Nxe4 5.Qe2 Qe7 6.d3 Nf6 7.Bg5 Nbd7 - Russian Game: Milner-Barry Variation [+0.07] (5)
│ ├── C42o - 3.Nxe5 d6 4.Nf3 Nxe4 5.Qe2 Qe7 6.d3 Nf6 7.Bg5 Qxe2+ - Russian Game: Queenswap [-0.09] (20)
│ ├── C42p - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 - Russian Game: Classical [+0.42] (11)
│ ├── C42p - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 - Russian Game: Classical [+0.50] (0)
│ ├── C42p - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 Nf6 - Russian Game: Classical Close Variation [+0.51] (22)
│ ├── C42q - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 - Russian Game: Classical [+0.33] (60)
│ ├── C42q - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6 7.O-O O-O 8.c4 Bg4 - Russian Game: Classical Tarrasch Variation [+0.80] (0)
│ ├── C42q - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6 7.O-O O-O 8.c4 Bg4 9.cxd5 f5 10.Re1 Bxh2+ - Russian Game: Classical Marshall Trap [-0.73] (0)
│ ├── C42r - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6 7.O-O O-O 8.c4 c6 - Russian Game: Classical Marshall [+0.34] (129)
│ ├── C42s - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 - Russian Game: Classical [+0.38] [+0.38] (19)
│ ├── C42s - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 - Russian Game: Classical [+0.38] [+0.38] (57)
│ ├── C42s - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O O-O - Russian Game: Classical Mason Variation [+0.40] (7)
│ ├── C42t - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.c4 - Russian Game: Classical Jaenisch Variation [+0.36] (54)
│ ├── C42u - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.c4 Nb4 9.Be2 O-O - Russian Game: Classical Jaenisch Main Line [+0.39] (134)
│ ├── C42v - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 - Russian Game: Classical Chigorin Variation [+0.23] (1)
│ ├── C42v - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 Bf5 - Russian Game: Classical Chigorin [+0.54] (26)
│ ├── C42w - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 Bg4 - Russian Game: Classical Chigorin [+0.16] (0)
│ ├── C42w - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 Bg4 9.c4 - Russian Game: Classical Chigorin [+0.29] (20)
│ └── C42x - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 Bg4 9.c3 f5 10.c4 Bh4 - Russian Game: Classical Maroczy Variation [-0.60] [-0.60] (27)
├── C43 - 1.e4 e5 2.Nf3 Nf6 3.d4 - Russian Game [+0.26] [+0.26] (171)
│ ├── C43a - 3.d4 - Modern (Steinitz) Attack [+0.33] [+0.33] (0)
│ ├── C43b - 3…exd4 - Modern Attack [+0.36] [+0.36] (0)
│ ├── C43c - 3…exd4 4.e5 Ne4 5.Qe2 Nc5 6.Nxd4 Nc6 - Modern Attack Bardeleben Variation [+0.38] [+0.38] (0)
│ ├── C43d - 3…exd4 4.e5 Ne4 5.Qxd4 - Modern Attack Main Line [+0.47] [+0.47] (3)
│ ├── C43e - 3…exd4 4.e5 Ne4 5.Qxd4 d5 6.exd6 Nxd6 7.Nc3 - Modern Attack Main Line [+0.44] (8)
│ ├── C43e - 3…exd4 4.e5 Ne4 5.Qxd4 d5 6.exd6 Nxd6 7.Nc3 Nc6 8.Qf4 Bf5 - Modern Attack Pillsbury Variation [+0.46] (1)
│ ├── C43f - 3…Nxe4 - Modern Attack [+0.33] [+0.33] (31)
│ ├── C43g - 3…Nxe4 4.Bd3 Nc6 5.d5 - Modern Attack [+0.25] [+0.25] (7)
│ ├── C43h - 3…Nxe4 4.Bd3 Nc6 5.Bxe4 - Modern Attack [-0.04] [-0.04] (1)
│ ├── C43i - 3…Nxe4 4.Bd3 d5 5.dxe5 - Modern Attack [+0.04] [+0.04] (11)
│ ├── C43j - 3…Nxe4 4.Bd3 d5 5.Nxe5 - Modern Attack [+0.31] [+0.31] (0)
│ ├── C43k - 3…Nxe4 4.Bd3 d5 5.Nxe5 Nc6 - Modern Attack [+0.55] [+0.55] (2)
│ ├── C43l - 3…Nxe4 4.Bd3 d5 5.Nxe5 Be7 - Modern Attack [+0.63] [+0.63] (2)
│ ├── C43m - 3…Nxe4 4.Bd3 d5 5.Nxe5 Bd6 - Modern Attack [+0.32] [+0.32] (6)
│ ├── C43n - 3…Nxe4 4.Bd3 d5 5.Nxe5 Bd6 6.O-O O-O 7.c4 Bxe5 - Modern Attack Trifunovic Variation [+0.68] (5)
│ ├── C43o - 3…Nxe4 4.Bd3 d5 5.Nxe5 Nd7 - Modern Attack [+0.27] [+0.27] (35)
│ ├── C43p - 3…Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Qe2 - Modern Attack [-0.20] (3)
│ ├── C43q - 3…Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 - Modern Attack [+0.26] [+0.26] (5)
│ ├── C43r - 3…Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 Bxd7 7.O-O - Modern Attack Main Line [+0.27] (5)
│ ├── C43s - 3…Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 Bxd7 7.O-O Qh4 - Modern Attack Main Line [+0.65] (7)
│ ├── C43t - 3…Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 Bxd7 7.O-O Bd6 - Modern Attack Main Line [+0.43] (14)
│ └── C43u - 3…Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 Bxd7 7.O-O Bd6 8.c4 - Modern Attack Main Line [+0.17] (22)
├── C44 - 1.e4 e5 2.Nf3 Nc6 - Open Game [+0.29] [+0.29] (106)
│ ├── C44a - 3.Nxe5 - Irish (Chicago) Gambit [-0.43] [-0.43] (3)
│ ├── C44b - 3.g3 - Konstantinopolsky [-0.12] [-0.12] (6)
│ ├── C44c - 3.Be2 Nf6 4.d4 - Tayler Opening [-0.36] [-0.36] (0)
│ ├── C44d - 3.d3 d5 - Inverted Philidor [+0.16] [+0.16] (1)
│ ├── C44e - 3.d3 Nf6 - Inverted Philidor [-0.20] [-0.20] (2)
│ ├── C44f - 3.d3 Nf6 4.g3 - Inverted Philidor [-0.18] [-0.18] (45)
│ ├── C44g - 3.d3 Nf6 4.Be2 - Inverted Philidor [-0.30] [-0.30] (15)
│ ├── C44i - 3.c3 Nge7 - Ponziani: Reti Variation [+0.69] [+0.69] (0)
│ ├── C44j - 3.c3 f5 - Ponziani Countergambit [+0.27] [+0.27] (1)
│ ├── C44j - 3.c3 f5 4.d4 d6 5.d5 - Ponziani Countergambit Schmidt Attack [+0.31] (0)
│ ├── C44j - 3.c3 f5 4.d4 d6 5.d5 fxe4 6.Ng5 Nb8 7.Nxe4 Nf6 8.Bd3 Be7 - Ponziani Countergambit Cordel Variation [+0.99] (0)
│ ├── C44k - 3.c3 d5 - Ponziani: [-0.34] [-0.34] (2)
│ ├── C44l - 3.c3 d5 4.Qa4 Bd7 - Ponziani: Caro Variation [+0.13] [+0.13] (1)
│ ├── C44m - 3.c3 d5 4.Qa4 f6 - Ponziani: Steinitz Variation [-0.26] [-0.26] (1)
│ ├── C44n - 3.c3 Nf6 4.d4 - Ponziani: [-0.22] [-0.22] (6)
│ ├── C44o - 3.c3 Nf6 4.d4 exd4 - Ponziani: [-0.03] [-0.03] (1)
│ ├── C44p - 3.c3 Nf6 4.d4 Nxe4 - Ponziani: [-0.13] (0)
│ ├── C44p - 3.c3 Nf6 4.d4 Nxe4 5.d5 Bc5 - Ponziani: Fraser Defence [-0.38] (1)
│ ├── C44q - 3.c3 Nf6 4.d4 Nxe4 5.d5 Ne7 - Ponziani: [+0.25] (4)
│ ├── C44r - 3.d4 Nxd4 4.Nxe5 Ne6 5.Bc4 c6 6.O-O Nf6 7.Nxf7 - Scotch: Cochrane Variation [-0.42] [-0.42] (0)
│ ├── C44s - 3.d4 d6 - Scotch: [+0.72] [+0.72] (0)
│ ├── C44t - 3.d4 exd4 4.Bb5 - Scotch: Relfsson Gambit [-0.18] [-0.18] (1)
│ ├── C44u - 3.d4 exd4 4.c3 d5 - Scotch: Goring Gambit [-0.15] [-0.15] (2)
│ ├── C44v - 3.d4 exd4 4.c3 d3 - Scotch: Goring Gambit [+0.60] [+0.60] (0)
│ ├── C44w - 3.d4 exd4 4.c3 dxc3 - Scotch: Goring Gambit [-0.39] (0)
│ ├── C44w - 3.d4 exd4 4.c3 dxc3 5.Bc4 - Scotch: Goring Gambit [-0.48] (0)
│ ├── C44w - 3.d4 exd4 4.c3 dxc3 5.Bc4 cxb2 6.Bxb2 - Scotch: Goring Gambit [-0.50] (1)
│ ├── C44w - 3.d4 exd4 4.c3 dxc3 5.Nxc3 - Scotch: Goring Gambit [-0.41] (0)
│ ├── C44w - 3.d4 exd4 4.c3 dxc3 5.Nxc3 Bb4 - Scotch: Goring Gambit [-0.18] (0)
│ ├── C44w - 3.d4 exd4 4.c3 dxc3 5.Nxc3 Bb4 6.Bc4 d6 - Scotch: Goring Gambit [-0.16] (0)
│ ├── C44w - 3.d4 exd4 4.c3 dxc3 5.Nxc3 Bb4 6.Bc4 d6 7.O-O - Scotch: Goring Gambit [-0.15] (0)
│ ├── C44w - 3.d4 exd4 4.c3 dxc3 5.Nxc3 Bb4 6.Bc4 Nf6 - Scotch: Goring Gambit Bardeleben Variation [+0.06] (0)
│ ├── C44x - 3.d4 exd4 4.Bc4 Bb4+ - Scotch Gambit: London Defence [+0.09] [+0.09] (2)
│ ├── C44y - 3.d4 exd4 4.Bc4 Bc5 - Scotch Gambit: [+0.01] (0)
│ ├── C44y - 3.d4 exd4 4.Bc4 Bc5 5.Ng5 - Scotch Gambit: [-0.10] (4)
│ ├── C44y - 3.d4 exd4 4.Bc4 Bc5 5.Ng5 Nh6 6.Qh5 - Scotch Gambit: Vitzhum Attack [-1.25] (0)
│ ├── C44y - 3.d4 exd4 4.Bc4 Bc5 5.O-O - Scotch Gambit: [-0.54] (1)
│ ├── C44y - 3.d4 exd4 4.Bc4 Bc5 5.O-O d6 6.c3 Bg4 - Scotch Gambit: Anderssen (Paulsen) Counterattack [-0.49] (0)
│ ├── C44z - 3.d4 exd4 4.Bc4 Bc5 5.c3 - Scotch Gambit: [-0.04] (0)
│ └── C44z - 3.d4 exd4 4.Bc4 Bc5 5.c3 d3 - Scotch Gambit: [+0.38] (0)
├── C45 - 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 - Scotch [+0.08] [+0.08] (383)
│ ├── C45a - 4.Nxd4 [-0.01] [-0.01] (1)
│ ├── C45b - 4…Nxd4 [+0.59] (0)
│ ├── C45b - 4…Nxd4 5.Qxd4 d6 6.Bd3 - Ghulam Kassim Variation [+0.35] (0)
│ ├── C45c - 4…Bb4+ [+0.23] [+0.23] (17)
│ ├── C45d - 4…Qf6 [+0.37] [+0.37] (19)
│ ├── C45e - 4…Qh4 - Steinitz Variation [+0.87] (0)
│ ├── C45e - 4…Qh4 5.Nf3 - Steinitz Fraser Attack [+0.09] (0)
│ ├── C45e - 4…Qh4 5.Qd3 - Steinitz [-0.09] (0)
│ ├── C45f - 4…Qh4 5.Nc3 - Steinitz [+0.77] (0)
│ ├── C45g - 4…Qh4 5.Nb5 - Steinitz [+0.43] (0)
│ ├── C45g - 4…Qh4 5.Nb5 Bb4+ - Steinitz [+0.35] (0)
│ ├── C45g - 4…Qh4 5.Nb5 Bb4+ 6.Bd2 - Steinitz [+0.34] (0)
│ ├── C45g - 4…Qh4 5.Nb5 Bb4+ 6.Bd2 Qxe4+ 7.Be2 Kd8 8.O-O Bxd2 9.Nxd2 Qg6 - Steinitz Rosenthal Variation [+0.30] (0)
│ ├── C45g - 4…Qh4 5.Nb5 Bb4+ 6.Nd2 Qxe4+ 7.Be2 Qxg2 8.Bf3 Qh3 9.Nxc7+ Kd8 10.Nxa8 Nf6 11.a3 - Steinitz Berger Variation [-2.27] (0)
│ ├── C45g - 4…Qh4 5.Nb5 Bc5 - Steinitz [+0.50] (0)
│ ├── C45g - 4…Qh4 5.Nb5 Bc5 6.Qf3 - Steinitz [+0.13] (0)
│ ├── C45g - 4…Qh4 5.Nb5 Qxe4+ - Steinitz [+0.70] (0)
│ ├── C45h - 4…Nf6 5.Nxc6 [-0.06] (25)
│ ├── C45h - 4…Nf6 5.Nxc6 bxc6 6.Nd2 - Tartakower Variation [-0.28] [-0.28] (1)
│ ├── C45i - 4…Nf6 5.Nxc6 bxc6 6.Bd3 [-0.03] [-0.03] (27)
│ ├── C45j - 4…Nf6 5.Nxc6 bxc6 6.e5 - Mieses Variation [+0.11] [+0.11] (1)
│ ├── C45j - 4…Nf6 5.Nxc6 bxc6 6.e5 Qe7 - Mieses [+0.08] (0)
│ ├── C45j - 4…Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 - Mieses [+0.08] (40)
│ ├── C45k - 4…Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 Nd5 8.c4 - Mieses [-0.16] (37)
│ ├── C45l - 4…Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 Nd5 8.c4 Ba6 - Mieses [+0.16] (10)
│ ├── C45m - 4…Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 Nd5 8.c4 Ba6 9.b3 - Mieses [+0.10] (26)
│ ├── C45n - 4…Bc5 [+0.30] [+0.30] (4)
│ ├── C45o - 4…Bc5 5.Nb3 [+0.26] [+0.26] (1)
│ ├── C45o - 4…Bc5 5.Nb3 Bb4+ - Romanishin Variation [+0.38] (3)
│ ├── C45p - 4…Bc5 5.Nb3 Bb6 [+0.30] (36)
│ ├── C45p - 4…Bc5 5.Nb3 Bb6 6.a4 [+0.15] (0)
│ ├── C45q - 4…Bc5 5.Nb3 Bb6 6.a4 a6 [+0.15] (3)
│ ├── C45q - 4…Bc5 5.Nb3 Bb6 6.a4 a6 7.Nc3 [+0.15] (2)
│ ├── C45q - 4…Bc5 5.Nb3 Bb6 6.a4 a6 7.Nc3 Nf6 - Geller Variation [+0.12] (0)
│ ├── C45q - 4…Bc5 5.Nb3 Bb6 6.a4 a6 7.Nc3 Qf6 [+0.59] (0)
│ ├── C45r - 4…Bc5 5.Nxc6 [+0.22] (41)
│ ├── C45s - 4…Bc5 5.Nxc6 Qf6 6.Qd2 [-0.06] (7)
│ ├── C45t - 4…Bc5 5.Nxc6 Qf6 6.Qd2 dxc6 7.Nc3 [-0.19] (14)
│ ├── C45u - 4…Bc5 5.Be3 [+0.25] [+0.25] (1)
│ ├── C45v - 4…Bc5 5.Be3 Qf6 6.c3 [+0.22] (4)
│ ├── C45v - 4…Bc5 5.Be3 Qf6 6.Nb5 - Blumenfeld Attack [-0.90] (0)
│ ├── C45w - 4…Bc5 5.Be3 Qf6 6.c3 Nge7 [+0.20] (11)
│ ├── C45w - 4…Bc5 5.Be3 Qf6 6.c3 Nge7 7.Bb5 - Paulsen Attack [+0.14] (2)
│ ├── C45w - 4…Bc5 5.Be3 Qf6 6.c3 Nge7 7.Bb5 Nd8 - Paulsen Gunsberg Defence [+0.84] (0)
│ ├── C45w - 4…Bc5 5.Be3 Qf6 6.c3 Nge7 7.Nc2 - Meitner Variation [-0.39] (4)
│ ├── C45w - 4…Bc5 5.Be3 Qf6 6.c3 Nge7 7.Qd2 - Blackburne Attack [-0.11] (2)
│ ├── C45x - 4…Bc5 5.Be3 Qf6 6.c3 Nge7 7.Bc4 [+0.18] [+0.18] (20)
│ └── C45y - 4…Bc5 5.Be3 Qf6 6.c3 Nge7 7.Bc4 Ne5 [+0.20] (21)
├── C46 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 - Three Knights Game [+0.09] [+0.09] (11)
│ ├── C46a - 3.Nc3 [+0.15] [+0.15] (0)
│ ├── C46b - 3…f5 - Winawer Defence [+1.23] [+1.23] (0)
│ ├── C46c - 3…d6 [+0.59] [+0.59] (1)
│ ├── C46d - 3…d6 4.d4 [+0.63] [+0.63] (0)
│ ├── C46e - 3…Bc5 [+0.56] [+0.56] (0)
│ ├── C46e - 3…Bc5 4.Bb5 [-0.09] [-0.09] (0)
│ ├── C46f - 3…Bc5 4.Nxe5 [+0.53] [+0.53] (3)
│ ├── C46g - 3…Bb4 [+0.43] [+0.43] (0)
│ ├── C46h - 3…Bb4 4.Nd5 [+0.39] [+0.39] (0)
│ ├── C46h - 3…Bb4 4.Nd5 Nf6 - Schlechter Variation [+0.36] [+0.36] (0)
│ ├── C46i - 3…g6 - Steinitz Variation [+1.04] [+1.04] (1)
│ ├── C46j - 3…g6 4.d4 - Steinitz [+0.94] [+0.94] (0)
│ ├── C46k - 3…g6 4.d4 exd4 5.Nd5 - Steinitz Rosenthal Variation [-0.01] (0)
│ ├── C46l - 3…g6 4.d4 exd4 5.Nxd4 - Steinitz [+0.87] (0)
│ ├── C46l - 3…g6 4.d4 exd4 5.Nxd4 Bg7 - Steinitz [+0.89] (1)
│ ├── C46l - 3…g6 4.d4 exd4 5.Nxd4 Bg7 6.Be3 - Steinitz [+1.04] (2)
│ └── C46m - 3…g6 4.d4 exd4 5.Nxd4 Bg7 6.Be3 Nf6 - Steinitz [+1.12] (1)
├── C47 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 - Four Knights Game [+0.12] [+0.12] (302)
│ ├── C47a - 3…Nf6 [+0.12] [+0.12] (83)
│ ├── C47a - 4.Nxe5 - Halloween Gambit [-1.75] (0)
│ ├── C47b - 4.a3 - Gunsberg Variation [-0.23] [-0.23] (22)
│ ├── C47c - 4.Be2 - Van der Wiel Variation [-0.22] (10)
│ ├── C47d - 4.Bc4 - Italian Variation [-0.07] [-0.07] (3)
│ ├── C47e - 4.g3 - Glek Variation [-0.20] [-0.20] (4)
│ ├── C47f - 4.g3 d5 - Glek [+0.15] (11)
│ ├── C47g - 4.g3 Bc5 - Glek [-0.29] (0)
│ ├── C47g - 4.g3 Bc5 5.Bg2 - Glek [-0.24] (11)
│ ├── C47h - 4.g3 Bc5 5.Bg2 d6 6.d3 a6 - Glek Main Line [-0.11] (8)
│ ├── C47i - 4.d4 - Scotch Variation [+0.03] (0)
│ ├── C47i - 4.d4 d6 - Scotch [+0.61] (0)
│ ├── C47j - 4.d4 Bb4 - Scotch Bogoljubow [+0.28] (2)
│ ├── C47j - 4.d4 Bb4 5.d5 - Scotch Bogoljubow [-0.06] (0)
│ ├── C47k - 4.d4 Bb4 5.Nxe5 - Scotch Krause Variation [+0.29] (6)
│ ├── C47l - 4.d4 exd4 - Scotch [+0.01] [+0.01] (0)
│ ├── C47l - 4.d4 exd4 5.Nd5 - Belgrade Gambit [-0.33] (0)
│ ├── C47l - 4.d4 exd4 5.Nd5 Nb4 - Belgrade Gambit [-0.30] (0)
│ ├── C47l - 4.d4 exd4 5.Nd5 Nxd5 - Belgrade Gambit [+0.37] (0)
│ ├── C47m - 4.d4 exd4 5.Nd5 Nxe4 - Belgrade Gambit [-0.34] (0)
│ ├── C47m - 4.d4 exd4 5.Nd5 Nxe4 6.Bc4 - Belgrade Gambit (Modern Line) [-0.51] (0)
│ ├── C47m - 4.d4 exd4 5.Nd5 Nxe4 6.Qe2 - Belgrade Gambit (Old Line) [-0.23] (0)
│ ├── C47n - 4.d4 exd4 5.Nd5 Be7 - Belgrade Gambit [-0.20] (2)
│ ├── C47o - 4.d4 exd4 5.Nxd4 - Scotch [+0.03] (2)
│ ├── C47p - 4.d4 exd4 5.Nxd4 d6 - Scotch [+0.59] (3)
│ ├── C47q - 4.d4 exd4 5.Nxd4 Bc5 - Scotch [+0.35] (8)
│ ├── C47r - 4.d4 exd4 5.Nxd4 Bb4 - Scotch [+0.02] (0)
│ ├── C47s - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 - Scotch [+0.06] (0)
│ ├── C47s - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 - Scotch Main Line [+0.12] (34)
│ ├── C47t - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 d5 - Scotch Main Line [+0.12] [+0.12] (38)
│ ├── C47t - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.exd5 cxd5 - Scotch Main Line [+0.13] (3)
│ ├── C47u - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.exd5 cxd5 9.O-O O-O - Scotch Main Line [+0.11] (63)
│ ├── C47v - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.exd5 cxd5 9.O-O O-O 10.Bg5 c6 - Scotch Main Line [+0.00] (5)
│ ├── C47w - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.exd5 cxd5 9.O-O O-O 10.Bg5 c6 11.Na4 - Scotch Main Line [-0.20] (5)
│ ├── C47x - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.exd5 cxd5 9.O-O O-O 10.Bg5 c6 11.Qf3 - Scotch Main Line [-0.10] [-0.10] (27)
│ └── C47y - 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.exd5 cxd5 9.O-O O-O 10.Bg5 c6 11.Qf3 Be7 - Scotch Main Line [+0.19] (2)
├── C48 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 - Four Knights [+0.11] [+0.11] (131)
│ ├── C48a - 4…a6 5.Bxc6 dxc6 6.Nxe5 Nxe4 7.Nxe4 Qd4 8.O-O Qxe5 9.Re1 Be6 10.d4 Qd5 - Spanish Spielmann Variation [+0.29] [+0.29] (32)
│ ├── C48b - 4…d6 - Spanish [+0.67] [+0.67] (0)
│ ├── C48c - 4…d6 5.d4 - Spanish [+0.53] [+0.53] (2)
│ ├── C48d - 4…Bc5 - Spanish Classical Defence [+0.29] [+0.29] (3)
│ ├── C48e - 4…Bc5 5.Nxe5 - Spanish Classical Defence [+0.31] [+0.31] (0)
│ ├── C48f - 4…Bc5 5.O-O - Spanish Classical Defence [+0.39] [+0.39] (7)
│ ├── C48f - 4…Bc5 5.O-O O-O 6.Nxe5 Nd4 - Spanish Classical Marshall Variation [+0.66] (0)
│ ├── C48f - 4…Bc5 5.O-O O-O 6.Nxe5 Nxe5 7.d4 Bd6 8.f4 Nc6 9.e5 Bb4 - Spanish Classical Bardeleben Variation [+0.55] (0)
│ ├── C48g - 4…Nd4 5.Be2 - Rubinstein [-0.10] [-0.10] (0)
│ ├── C48h - 4…Nd4 5.Nxe5 Qe7 6.f4 - Rubinstein Bogoljubow Variation [+0.00] [+0.00] (1)
│ ├── C48i - 4…Nd4 5.O-O - Rubinstein Henneberger Variation [-0.06] [-0.06] (5)
│ ├── C48j - 4…Nd4 5.Bc4 - Rubinstein [+0.11] [+0.11] (29)
│ ├── C48k - 4…Nd4 5.Nxd4 - Rubinstein Exchange Variation [+0.05] [+0.05] (5)
│ ├── C48k - 4…Nd4 5.Nxd4 exd4 6.e5 dxc3 7.exf6 - Rubinstein Exchange Variation [-0.09] (2)
│ ├── C48l - 4…Nd4 5.Nxd4 exd4 6.e5 dxc3 7.exf6 Qxf6 8.dxc3 Bc5 - Rubinstein Exchange Variation [-0.01] (9)
│ ├── C48m - 4…Nd4 5.Nxd4 exd4 6.e5 dxc3 7.exf6 Qxf6 8.dxc3 Qe5+ - Rubinstein Exchange Variation [+0.16] (7)
│ ├── C48n - 4…Nd4 5.Ba4 Nxf3+ - Rubinstein [+0.01] [+0.01] (4)
│ ├── C48o - 4…Nd4 5.Ba4 c6 - Rubinstein [-0.26] (4)
│ ├── C48p - 4…Nd4 5.Ba4 c6 6.Nxe5 - Rubinstein [-0.48] (8)
│ ├── C48q - 4…Nd4 5.Ba4 Bc5 - Rubinstein [+0.15] (2)
│ └── C48r - 4…Nd4 5.Ba4 Bc5 6.Nxe5 - Rubinstein [+0.10] (11)
└── C49 - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 - Four Knights [+0.11] [+0.11] (65)
├── C49a - 4…Bb4 [+0.17] [+0.17] (1)
├── C49b - 5.O-O [+0.12] [+0.12] (1)
├── C49c - 5.O-O O-O [+0.10] [+0.10] (1)
├── C49c - 5.O-O O-O 6.Nd5 Nxd5 7.exd5 e4 - Gunsberg Variation [-0.13] (0)
├── C49d - 5.O-O O-O 6.Bxc6 - Nimzowitsch (Paulsen) Variation [+0.09] [+0.09] (10)
├── C49e - 5.O-O O-O 6.d3 - Double Bishops [+0.18] (0)
├── C49f - 5.O-O O-O 6.d3 Bxc3 - Double Bishops [+0.27] [+0.27] (4)
├── C49f - 5.O-O O-O 6.d3 Bxc3 7.bxc3 d5 - Svenonius Variation [+0.44] (0)
├── C49f - 5.O-O O-O 6.d3 Bxc3 7.bxc3 d6 8.Re1 - Janowski Variation [+0.15] (7)
├── C49g - 5.O-O O-O 6.d3 d6 - Symmetrical Variation [+0.16] (1)
├── C49h - 5.O-O O-O 6.d3 d6 7.Ne2 - Symmetrical Maroczy System [+0.25] (7)
├── C49i - 5.O-O O-O 6.d3 d6 7.Bg5 - Symmetrical [+0.05] (0)
├── C49j - 5.O-O O-O 6.d3 d6 7.Bg5 Be6 - Symmetrical Tarrasch Variation [+0.83] (0)
├── C49k - 5.O-O O-O 6.d3 d6 7.Bg5 Ne7 - Symmetrical Pillsbury Variation [+0.00] (2)
├── C49k - 5.O-O O-O 6.d3 d6 7.Bg5 Ne7 8.Nh4 c6 9.Bc4 d5 10.Bb3 Qd6 - Symmetrical Blake Variation [+0.14] (1)
├── C49l - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 - Symmetrical [+0.25] (0)
├── C49l - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 - Symmetrical [+0.15] (10)
├── C49m - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 h6 - Symmetrical [+0.27] (6)
├── C49n - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 - Symmetrical Metger unpin [+0.33] (1)
├── C49n - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 9.Re1 Nd8 10.d4 - Symmetrical Metger [+0.42] (0)
├── C49o - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 9.Re1 Nd8 10.d4 Bg4 - Symmetrical Metger Capablanca Variation [+0.47] (0)
├── C49p - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 9.Re1 Nd8 10.d4 Ne6 - Symmetrical Metger [+0.45] (3)
├── C49q - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 9.Re1 Nd8 10.d4 Ne6 11.Bc1 Rd8 - Symmetrical Metger [+0.63] (5)
└── C49r - 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 9.Re1 Nd8 10.d4 Ne6 11.Bc1 c5 - Symmetrical Metger [+0.87] (4)
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C40 - 1.e4 e5 2.Nf3 - Open Game [+0.36] (4)
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—● d4 (2v1)Cases faibles——Centre● d5 (1v0), ● e5 (1v0)● d4 (2v1) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 5)Bc5●… -
C41 - 1.e4 e5 2.Nf3 d6 - Philidor Defence [+0.40] (201)
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 centre !Droits de roqueO-O / O-O-OO-O / O-O-O Thèmes ♔ Blancs♚ NoirsPhaseOuvertureCentreferméRuptures● c2-c3, ● d2-d3● ...c7-c6, ● ...c7-c5, ● ...d6-d5, ● ...f7-f6, ●… -
C42 - 1.e4 e5 2.Nf3 Nf6 - Russian Game (Petroff Defence) [+0.41] (955)
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… -
C43 - 1.e4 e5 2.Nf3 Nf6 3.d4 - Russian Game [+0.26] (171)
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—● d4, ● d7Pions isolés——Arriérés——Chaînes——Passés——Majorité—● centre 2v1… -
C44 - 1.e4 e5 2.Nf3 Nc6 - Open Game [+0.29] (106)
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 [+0.08] (383)
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 [+0.12] (302)
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 [+0.11] (131)
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 [+0.11] (65)
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 Game [+0.09] (11)
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 centre !Droits de roqueO-O / O-O-OO-O / O-O-O Thèmes ♔ Blancs♚ NoirsPhaseOuvertureCentreferméRuptures●…

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