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Shusaku vs Inoue Gennan · Ear-reddening game

1846-09-11,14,15 · Black won by 2 points · Shusaku vs Inoue Gennan · Ear-reddening game. Go, Black to play, 1846-09-11,14,15. Study 325 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 · O3

This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 4 liberties: O2, O4, N3, P3. 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 (325 plies)

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

Black Q4
White D3
Black P17
White O3
Black C16
White C6
Black E16
White Q15
Black P5
White N16
Black P15
White P16
Black O16
White Q16
Black O17
White O15
Black P14
White Q17
Black N17
White O14
Black P13
White O13
Black P12
White M16
Black M17
White O12
Black P11
White L17
Black L18
White K18
Black L16
White K17
Black Q18
White R18
Black R19
White M18
Black N18
White P18
Black P19
White Q19
Black N15
White M15
Black Q18
White R13
Black R12
White Q19
Black L15
White M14
Black Q18
White Q13
Black O18
White Q12
Black Q10
White R10
Black R9
White R11
Black L14
White M13
Black Q9
White R17
Black J14
White L19
Black N19
White G17
Black G15
White C11
Black K3
White I3
Black P3
White N10
Black K5
White O7
Black O8
White P2
Black Q2
White N7
Black M9
White M10
Black N4
White P8
Black Q7
White P7
Black H17
White H18
Black I18
White I17
Black H16
White J18
Black F3
White L3
Black L4
White M3
Black L2
White M2
Black M4
White Q6
Black P6
White Q8
Black R7
White R8
Black S8
White R6
Black S7
White P10
Black P9
White O9
Black O10
White N9
Black Q11
White O11
Black Q5
White K2
Black J2
White K1
Black J3
White O2
Black J1
White L1
Black D2
White C3
Black F5
White C14
Black G18
White I19
Black F17
White I15
Black J9
White E2
Black F2
White E7
Black D10
White D11
Black E10
White C10
Black D8
White I10
Black H13
White G10
Black E8
White F12
Black F7
White E18
Black D13
White F14
Black D14
White G14
Black J10
White J11
Black K11
White I9
Black I11
White J12
Black K12
White I12
Black J8
White C15
Black D15
White I8
Black H14
White H12
Black B12
White D7
Black G8
White C8
Black I7
White E3
Black C18
White F4
Black G4
White E4
Black G3
White B11
Black C13
White G19
Black G16
White L9
Black K7
White I14
Black L10
White L7
Black G13
White J6
Black J7
White I13
Black F13
White K6
Black L6
White M6
Black L5
White G6
Black H6
White F6
Black G7
White L11
Black K10
White K13
Black L13
White L12
Black J13
White G5
Black H5
White E6
Black E1
White C2
Black F18
White F19
Black D18
White Q1
Black R1
White P1
Black R2
White D1
Black G9
White F10
Black F9
White F1
Black G1
White G12
Black E11
White E13
Black H15
White E12
Black E14
White J15
Black K14
White C9
Black L8
White M8
Black M7
White D9
Black E9
White L7
Black Q14
White R14
Black R5
White S12
Black M7
White B13
Black A13
White L7
Black E17
White E19
Black M7
White H1
Black G2
White L7
Black D19
White H19
Black M7
White S10
Black S9
White L7
Black S18
White S17
Black M7
White H4
Black H2
White L7
Black R15
White S15
Black M7
White S19
Black Q19
White L7
Black S14
White R16
Black M7
White C12
Black B14
White L7
Black M12
White M11
Black M7
White P10
Black S6
White L7
Black N14
White N12
Black M7
White I2
Black I1
White L7
Black N3
White N2
Black M7
White J4
Black K4
White L7
Black M1
White N1
Black M7
White Q3
Black R3
White L7
Black J19
White K19
Black M7
White H3
Black I4
White L7
Black F11
White H10
Black M7
White H8
Black H7
White L7
Black G11
White H11
Black M7
White A11
Black L7
White A12
Black B13
White N6
Black O4
White K9
Black M19
White K16
Black I16
White J16
Black L18
White O10
Black M18
White E1
Black S18

Read the rules with worked examples →