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Shusaku historical game · 1847-08-23

1847-08-23 · Black won by resignation · Shusaku historical game · 1847-08-23. Go, Black to play, 1847-08-23. Study 93 reference plies, try both sides and branch from the replay.

0 pliesBlack starts

Site coordinates run A–S left to right and 1–19 top to bottom; A1 is the top-left intersection.

Read the position, one decision at a time

Try the position first, then open the notes. They explain measurable changes in the reference, not every possible variation.

Reveal step-by-step explanations

1. Black · Q4

This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 4 liberties: Q3, Q5, P4, R4. Diagonal neighbours are not part of the same group. More than one liberty does not by itself establish life; examine the next move.

2. White · Q16

This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 4 liberties: Q15, Q17, P16, R16. Diagonal neighbours are not part of the same group. More than one liberty does not by itself establish life; examine the next move.

3. Black · D3

This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 4 liberties: D2, D4, C3, E3. Diagonal neighbours are not part of the same group. More than one liberty does not by itself establish life; examine the next move.

4. White · C5

This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 4 liberties: C4, C6, B5, D5. Diagonal neighbours are not part of the same group. More than one liberty does not by itself establish life; examine the next move.

Continue with the learning path →

Understand this position

19 ranks × 19 files · 0 black stones · 0 white stones

Replay a few moves before advancing to the end. At each pause, compare the last position with the next one: which lines opened, which groups connected, and which points became contested? Use “Start new trial here” to investigate an alternative, then return to the reference.

Read the reference line (93 plies)

Coordinates match this board: letters left to right, row numbers from top to bottom. These are board coordinates, not traditional score notation.

  1. Black Q4
  2. White Q16
  3. Black D3
  4. White C5
  5. Black C9
  6. White F5
  7. Black G3
  8. White C16
  9. Black O3
  10. White O17
  11. Black Q10
  12. White E17
  13. Black C12
  14. White C3
  15. Black C2
  16. White D4
  17. Black E3
  18. White B3
  19. Black Q14
  20. White Q8
  21. Black R16
  22. White R17
  23. Black P16
  24. White P17
  25. Black Q15
  26. White Q17
  27. Black O10
  28. White O8
  29. Black N15
  30. White M8
  31. Black M16
  32. White I3
  33. Black B2
  34. White I16
  35. Black E4
  36. White E5
  37. Black D6
  38. White D5
  39. Black I4
  40. White J4
  41. Black H4
  42. White C8
  43. Black D8
  44. White B8
  45. Black B9
  46. White D9
  47. Black D7
  48. White C6
  49. Black F7
  50. White D10
  51. Black C10
  52. White D11
  53. Black C7
  54. White B7
  55. Black A8
  56. White B6
  57. Black D12
  58. White F11
  59. Black H7
  60. White F8
  61. Black E8
  62. White C11
  63. Black B11
  64. White A10
  65. Black B10
  66. White B13
  67. Black B12
  68. White F9
  69. Black B15
  70. White C15
  71. Black B14
  72. White C13
  73. Black C14
  74. White D13
  75. Black F12
  76. White D14
  77. Black E11
  78. White E10
  79. Black E12
  80. White G11
  81. Black G12
  82. White H11
  83. Black H12
  84. White I11
  85. Black G6
  86. White I12
  87. Black B16
  88. White F14
  89. Black G14
  90. White B17
  91. Black B4
  92. White H13
  93. Black G13
Read the rules with worked examples →

More positions to explore