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Shusaku historical game · 1847-01-17

1847-01-17 · Black won by resignation · Shusaku historical game · 1847-01-17. Go, Black to play, 1847-01-17. Study 187 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 · 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.

3. Black · P17

This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 4 liberties: P16, P18, O17, Q17. 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 · E17

This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 4 liberties: E16, E18, D17, F17. 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 (187 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 D3
  3. Black P17
  4. White E17
  5. Black C16
  6. White C14
  7. Black D14
  8. White D13
  9. Black E14
  10. White E13
  11. Black E16
  12. White D17
  13. Black C13
  14. White C12
  15. Black B13
  16. White C17
  17. Black D16
  18. White B14
  19. Black B12
  20. White B16
  21. Black C11
  22. White C15
  23. Black F14
  24. White E11
  25. Black F17
  26. White F18
  27. Black G17
  28. White G18
  29. Black H17
  30. White D8
  31. Black E10
  32. White F11
  33. Black D10
  34. White D6
  35. Black F13
  36. White F10
  37. Black F9
  38. White G9
  39. Black F8
  40. White D11
  41. Black D12
  42. White E12
  43. Black C9
  44. White C8
  45. Black H9
  46. White H10
  47. Black G8
  48. White I10
  49. Black J9
  50. White I9
  51. Black G10
  52. White G11
  53. Black I8
  54. White J8
  55. Black K9
  56. White E9
  57. Black J12
  58. White B10
  59. Black B9
  60. White I13
  61. Black B8
  62. White H14
  63. Black D9
  64. White G15
  65. Black I15
  66. White J13
  67. Black F15
  68. White K8
  69. Black L9
  70. White K15
  71. Black K17
  72. White K12
  73. Black E8
  74. White O3
  75. Black L8
  76. White K6
  77. Black P6
  78. White Q15
  79. Black M16
  80. White I7
  81. Black H8
  82. White J11
  83. Black H12
  84. White H11
  85. Black L5
  86. White J4
  87. Black L3
  88. White M7
  89. Black L7
  90. White L6
  91. Black M6
  92. White M5
  93. Black N6
  94. White L4
  95. Black M4
  96. White K5
  97. Black N4
  98. White Q3
  99. Black R3
  100. White P4
  101. Black R4
  102. White R2
  103. Black P5
  104. White G6
  105. Black E6
  106. White E5
  107. Black C6
  108. White P10
  109. Black O4
  110. White C5
  111. Black D7
  112. White D5
  113. Black J2
  114. White B6
  115. Black B7
  116. White N5
  117. Black O5
  118. White I2
  119. Black K2
  120. White I3
  121. Black L14
  122. White M13
  123. Black M14
  124. White N13
  125. Black O9
  126. White P9
  127. Black O8
  128. White P2
  129. Black N2
  130. White O2
  131. Black P3
  132. White J15
  133. Black J16
  134. White P4
  135. Black O14
  136. White P16
  137. Black O17
  138. White Q13
  139. Black R16
  140. White Q7
  141. Black P3
  142. White K16
  143. Black J17
  144. White P4
  145. Black B17
  146. White B18
  147. Black P3
  148. White H18
  149. Black I18
  150. White P4
  151. Black E18
  152. White D18
  153. Black P3
  154. White L16
  155. Black L17
  156. White P4
  157. Black R6
  158. White S2
  159. Black P3
  160. White Q17
  161. Black Q16
  162. White P4
  163. Black P15
  164. White N3
  165. Black L5
  166. White P12
  167. Black M2
  168. White P3
  169. Black O1
  170. White N1
  171. Black M1
  172. White Q1
  173. Black K4
  174. White R7
  175. Black F6
  176. White F5
  177. Black H6
  178. White G5
  179. Black A6
  180. White B5
  181. Black Q14
  182. White H7
  183. Black R13
  184. White R12
  185. Black R14
  186. White O10
  187. Black A5
Read the rules with worked examples →

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