ecocodes
Volume C · Open games and the French Defense‹ C23C25 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

C24 Bishop’s Opening: Berlin Defense

C24 holds ten named lines, all under the name Bishop’s Opening. It leaves C23 (Bishop’s Opening) with 2...Nf6. Lines filed under C28 and C30 reach one of its named positions by a different move order. Material is no longer level at the end of two of its lines; the widest gap, one pawn in Black’s favour, comes in Bishop’s Opening: Pachman Gambit.

Score sheet
#WhiteBlack
1e4e5
2Bc4Nf6

Moves only C24 plays

Same as C23 up to 2.Bc4, then:

  1. 2...Nf6 The knight leaves g8 for f6, opening a line for the rook on h8.

Lines filed under C24

All ten share their first four plies, the whole reference line and then split five ways at White’s move 3.

NameAfter the shared startPliesAt the end
Bishop’s Opening: Berlin Defense(the shared start itself)4
Bishop’s Opening: Berlin Defense, Greco Gambit3.f45
Bishop’s Opening: Ponziani Gambit3.d45
Bishop’s Opening: Paulsen Defense3.d3 c66
Bishop’s Opening: Pachman Gambit3.Ne2 Nxe4 4.Nec37Black +1
Bishop’s Opening: Vienna Hybrid3.d3 Nc6 4.Nc37
Bishop’s Opening: Warsaw Gambit3.d4 exd4 4.c37Black +1
Bishop’s Opening: Kitchener Folly3.d3 Be7 4.Nf3 O-O8Black castled
Bishop’s Opening: Krejcik Gambit3.f3 Bc5 4.Ne2 Nc6 5.b49
Bishop’s Opening: Urusov Gambit, Panov Variation3.d4 exd4 4.Nf3 d5 5.exd5 Bb4+ 6.c3 Qe7+12check

The road to C24

  1. 1.e4one earlier stop: B00
  2. 1...e5C20 King’s Pawn Game
  3. 2.Bc4C23 Bishop’s Opening
  4. 2...Nf6C24

The position after 2...Nf6

White has brought out the bishop on c4; Black the knight on f6. White could capture with Bxf7+. White is to move and has 33 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed11Moves spent on pawns11Pawns on d4, e4, d5, e511Squares attacked in the other half76not castlednot castled

Closest boards in other codes

CodeLineDiffers on
B02Alekhine Defensefour squares: f1, c4, e5, e7
C20King’s Pawn Gamefour squares: f1, c4, f6, g8
C26Vienna Game: Falkbeer Variationfour squares: b1, f1, c3, c4
C27Vienna Game: Frankenstein-Dracula Variationfour squares: b1, c3, e4, f6
C28Vienna Game: Stanley Variation, Three Knights Variationfour squares: b1, c3, c6, b8
C42Petrov’s Defensefour squares: f1, g1, f3, c4
C55Italian Game: Two Knights Defensefour squares: g1, f3, c6, b8

Where lines continue from here

Three named lines filed under other codes pass through the position after 2...Nf6. They belong to C26, C43.

Volume C

  1. 00
  2. 01
  3. 02
  4. 03
  5. 04
  6. 05
  7. 06
  8. 07
  9. 08
  10. 09
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. 16
  18. 17
  19. 18
  20. 19
  21. 20
  22. 21
  23. 22
  24. 23
  25. 24
  26. 25
  27. 26
  28. 27
  29. 28
  30. 29
  31. 30
  32. 31
  33. 32
  34. 33
  35. 34
  36. 35
  37. 36
  38. 37
  39. 38
  40. 39
  41. 40
  42. 41
  43. 42
  44. 43
  45. 44
  46. 45
  47. 46
  48. 47
  49. 48
  50. 49
  51. 50
  52. 51
  53. 52
  54. 53
  55. 54
  56. 55
  57. 56
  58. 57
  59. 58
  60. 59
  61. 60
  62. 61
  63. 62
  64. 63
  65. 64
  66. 65
  67. 66
  68. 67
  69. 68
  70. 69
  71. 70
  72. 71
  73. 72
  74. 73
  75. 74
  76. 75
  77. 76
  78. 77
  79. 78
  80. 79
  81. 80
  82. 81
  83. 82
  84. 83
  85. 84
  86. 85
  87. 86
  88. 87
  89. 88
  90. 89
  91. 90
  92. 91
  93. 92
  94. 93
  95. 94
  96. 95
  97. 96
  98. 97
  99. 98
  100. 99

Other move orders

  • Bishop’s Opening: Vienna Hybrid is also reached inside C28 Bishop’s Opening: Vienna Hybrid, Hromádka Variation, whose order is 1.e4 e5 2.Nc3 Nc6 3.Bc4 Nf6 4.d3.
  • Bishop’s Opening: Vienna Hybrid is also reached inside C30 King’s Gambit Declined: Classical, Svenonius Variation, whose order is 1.e4 e5 2.Bc4 Nc6 3.Nc3 Nf6 4.d3.

Open this line in the finderAll Bishop’s Opening codes