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Shusaku historical game · 1847-04-13

1847-04-13 · White won by resignation · Shusaku historical game · 1847-04-13. Go, Black to play, 1847-04-13. Study 170 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 · 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.

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 (170 plies)

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

Black C16
White P17
Black E17
White C5
Black Q4
White O3
Black D3
White F3
Black E3
White G4
Black D5
White D6
Black E5
White B4
Black B3
White C3
Black C2
White C4
Black B2
White G6
Black M3
White P5
Black Q5
White P6
Black Q7
White M5
Black E2
White C11
Black D8
White E7
Black D10
White C15
Black D15
White C14
Black B16
White C10
Black D14
White D13
Black E13
White D12
Black G9
White E12
Black F13
White G11
Black F6
White F7
Black G7
White H6
Black H7
White I7
Black F8
White C7
Black I9
White J6
Black C8
White E6
Black F5
White B8
Black I11
White O8
Black P3
White O2
Black Q15
White F2
Black N17
White E8
Black E9
White H8
Black G8
White F10
Black I8
White K7
Black B6
White B7
Black F12
White F9
Black G12
White L17
Black O16
White I17
Black H18
White H17
Black I18
White J17
Black G17
White G16
Black J18
White F17
Black G18
White K14
Black I15
White E11
Black K17
White K16
Black K18
White J16
Black I14
White H15
Black F15
White J12
Black I12
White J13
Black J11
White I13
Black H14
White K11
Black K8
White F16
Black F18
White E16
Black D16
White K10
Black L7
White L6
Black H13
White J10
Black I10
White L8
Black L15
White L14
Black L16
White K15
Black N15
White R16
Black R15
White R18
Black K9
White L9
Black L10
White M11
Black M10
White N10
Black N9
White L11
Black M9
White M7
Black O9
White N13
Black O12
White N12
Black O11
White M14
Black P8
White Q6
Black R6
White P4
Black Q3
White R7
Black R8
White P7
Black Q8
White O18
Black G5
White H5
Black H4
White H3
Black I4
White I3
Black F1
White G1
Black E1
White G3
Black P2
White P1
Black Q1
White O1
Black S7
White A15
Black B15
White B14

Read the rules with worked examples →