ecocodes
a1b2c3d4e5f6g7h8
After 1.f4 · Black to move

Bird Opening

The list files 28 lines under the name Bird Opening, spread over three codes (A02–A03, B21). A02 alone holds 19 of them. From the starting position of Bird Opening, the most-travelled continuation is 1...e5, with 9 lines. The deepest, Bird Opening: From’s Gambit, Lipke Variation, runs to 5.d4. At the end of 11 lines one side is ahead on material; 20 names contain the word Gambit.

Score sheet
#WhiteBlack
1f4

Where the lines split

Twenty-six of the 28 lines continue from 1.f4; the bars show how many take each next move, and the indented rows the most common reply. The other one reach the opening by a different move order.

  1. 1...e59
    1. 2.fxe56
    2. 2.Nc31
    3. 2.d41
  2. 1...d58
    1. 2.e43
    2. 2.g41
    3. 2.Nf31
    4. 2.c41
  3. 1...f53
    1. 2.e42
    2. 2.d41
  4. 1...Nf62
    1. 2.Nf31
    2. 2.c41
  5. 1...Nh61
  6. 1...b51
  7. 1...g51
  8. 1...h61
    1. 2.Nf31

Codes holding Bird Opening lines

Volume A

  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

Volume B

  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
CodeReference lineLinesLongest line (plies)
A02Bird Opening19Bird Opening: From’s Gambit, Lipke Variation (9)
A03Bird Opening: Dutch Variation8Bird Opening: Thomas Gambit (9)
B21Sicilian Defense: McDonnell Attack1Bird Opening: Dutch Variation, Batavo Gambit (6)

Longest Bird Opening lines

  1. Bird Opening: From’s Gambit, Lipke Variation 9
  2. Bird Opening: Thomas Gambit 9
  3. Bird Opening: From’s Gambit, Lasker Variation 8
  4. Bird Opening: Siegener Gambit 7
  5. Bird Opening: Swiss Gambit 7
  6. Bird Opening: Williams Gambit 7
  7. Bird Opening: Williams-Zilbermints Gambit 7
  8. Bird Opening: From’s Gambit, Langheld Gambit 6