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Shusaku historical game · 1846-12-24

1846-12-24 · White won by 4 points · Shusaku historical game · 1846-12-24. Go, Black to play, 1846-12-24. Study 311 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 (311 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 Q5
White P3
Black D3
White F4
Black E3
White E5
Black G3
White C10
Black Q15
White C14
Black H3
White Q12
Black Q17
White Q18
Black P16
White O17
Black R17
White M16
Black Q9
White R18
Black P14
White O12
Black N14
White O9
Black N3
White N4
Black M4
White O4
Black M3
White Q7
Black P6
White Q8
Black O7
White P9
Black M5
White Q4
Black R5
White R4
Black D8
White G6
Black E9
White I6
Black H5
White H6
Black E11
White D12
Black E12
White D16
Black C15
White D15
Black D17
White B14
Black B15
White C17
Black B17
White C18
Black D14
White F16
Black D13
White C13
Black B18
White A15
Black B16
White D11
Black D10
White B12
Black E16
White E15
Black F15
White E14
Black E13
White F14
Black G15
White G14
Black G16
White C9
Black H14
White G13
Black G11
White H13
Black I11
White I14
Black K11
White G17
Black H16
White F17
Black D18
White I16
Black H17
White I17
Black H18
White I18
Black F7
White G5
Black J5
White I9
Black G9
White F3
Black F2
White E2
Black G2
White C3
Black C2
White D2
Black E1
White M7
Black N6
White J6
Black C8
White K5
Black J4
White K9
Black J15
White I15
Black J13
White M14
Black O16
White N16
Black J14
White K16
Black B8
White D4
Black C11
White C12
Black B10
White B9
Black A9
White B11
Black A10
White A11
Black A8
White A13
Black D1
White N13
Black O13
White M12
Black J16
White J17
Black K17
White K18
Black J10
White J9
Black K15
White L16
Black S4
White S3
Black S6
White S5
Black Q13
White R12
Black S4
White F18
Black G19
White S5
Black B3
White O2
Black S4
White R13
Black R3
White S5
Black P18
White O18
Black S4
White C19
Black B19
White S5
Black P12
White P11
Black S4
White S2
Black R2
White S5
Black O11
White N12
Black S4
White P5
Black Q6
White S5
Black Q11
White P10
Black S4
White E19
Black D19
White S5
Black R14
White S4
Black P13
White R11
Black R7
White R8
Black N2
White O3
Black L6
White K6
Black L7
White M8
Black M6
White K4
Black K3
White B4
Black C4
White J3
Black J2
White C3
Black M11
White I12
Black L12
White F10
Black G10
White H11
Black H10
White G12
Black I10
White E10
Black D9
White F11
Black N9
White L8
Black K7
White N8
Black N11
White H15
Black E18
White M13
Black M9
White H8
Black F9
White F12
Black O8
White I5
Black I3
White C4
Black A2
White D6
Black F6
White F5
Black C6
White B6
Black C7
White G7
Black L9
White K8
Black J7
White I7
Black H4
White E7
Black F8
White K10
Black M15
White L15
Black L14
White N15
Black L13
White O14
Black L10
White A5
Black J8
White O15
Black I8
White G8
Black P15
White S17
Black S16
White S18
Black A6
White A7
Black B7
White A6
Black A4
White A3
Black O1
White P1
Black A4
White E6
Black H9
White R16
Black E4
White A3
Black R15
White B2
Black Q16
White N1
Black B1
White A1
Black P8
White Q10
Black A2
White D2
Black E2
White A1
Black S8
White S9
Black A2
White B3
Black O5
White S7
Black R6
White M1
Black P4
White Q3
Black C11
White J12
Black L2
White K12
Black K13
White C10
Black S8

Read the rules with worked examples →