Preflight Playfilepreflight.com
HomePuzzle library
EN中文
← Back to collectionGo / Modern master games · Game replay

Shusaku historical game · 1847-02-27

1847-02-27 · White won by resignation · Shusaku historical game · 1847-02-27. Go, Black to play, 1847-02-27. Study 154 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 · C16

This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 4 liberties: C15, C17, B16, D16. 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 · 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.

3. 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.

4. 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.

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 (154 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 C16
  2. White P17
  3. Black Q4
  4. White D3
  5. Black E17
  6. White C6
  7. Black O4
  8. White Q15
  9. Black J3
  10. White J17
  11. Black Q10
  12. White C12
  13. Black G3
  14. White P9
  15. Black P10
  16. White O9
  17. Black R8
  18. White O10
  19. Black P12
  20. White M3
  21. Black M5
  22. White P3
  23. Black O3
  24. White P4
  25. Black P5
  26. White Q3
  27. Black O2
  28. White Q5
  29. Black R4
  30. White R3
  31. Black R5
  32. White Q6
  33. Black R6
  34. White O5
  35. Black P6
  36. White Q7
  37. Black R7
  38. White N5
  39. Black O7
  40. White M6
  41. Black Q8
  42. White L5
  43. Black P2
  44. White F4
  45. Black F3
  46. White E3
  47. Black H5
  48. White F6
  49. Black C10
  50. White C15
  51. Black D15
  52. White B16
  53. Black D16
  54. White B15
  55. Black B17
  56. White E11
  57. Black C7
  58. White B7
  59. Black B8
  60. White C8
  61. Black D7
  62. White B9
  63. Black D8
  64. White C9
  65. Black B6
  66. White A8
  67. Black E5
  68. White C5
  69. Black C4
  70. White B5
  71. Black F5
  72. White E6
  73. Black D4
  74. White E4
  75. Black G5
  76. White D5
  77. Black B4
  78. White B2
  79. Black D6
  80. White A6
  81. Black F7
  82. White M8
  83. Black E2
  84. White D2
  85. Black L17
  86. White G4
  87. Black H4
  88. White H3
  89. Black H2
  90. White G6
  91. Black H7
  92. White H6
  93. Black I6
  94. White I5
  95. Black I4
  96. White I7
  97. Black J5
  98. White G7
  99. Black H8
  100. White G8
  101. Black G9
  102. White H9
  103. Black I8
  104. White F9
  105. Black G10
  106. White F8
  107. Black J8
  108. White G17
  109. Black K15
  110. White J15
  111. Black J14
  112. White I15
  113. Black I14
  114. White H14
  115. Black O17
  116. White O16
  117. Black P18
  118. White P16
  119. Black K14
  120. White H13
  121. Black N7
  122. White M7
  123. Black M10
  124. White N2
  125. Black L2
  126. White Q2
  127. Black S3
  128. White L3
  129. Black K3
  130. White K8
  131. Black Q18
  132. White N17
  133. Black O18
  134. White M15
  135. Black N18
  136. White N12
  137. Black L11
  138. White J9
  139. Black P14
  140. White O14
  141. Black M13
  142. White L13
  143. Black M14
  144. White N14
  145. Black M12
  146. White M17
  147. Black M18
  148. White J7
  149. Black M16
  150. White N16
  151. Black L16
  152. White R16
  153. Black Q17
  154. White R14
Read the rules with worked examples →

More positions to explore