EVENT WHITE Cheong, 5d, Singapore BLACK Jim Bates, 4d, UK RESULT B+8.5 BOARDSIZE 19 KOMI 5.5 SOURCE BGJ 66 November 1985 page 20 COM Copyright British Go Association 1985, 1999 Black Rank: 4 dan Write Rank: 5 dan Black Rank: 5325952 dan Write Rank: 5325952 dan ENDCOM B 1 R15 W 2 D4 B 3 P4 W 4 C17 B 5 F3 W 6 R4 B 7 K3 W 8 P3 B 9 O3 W 10 Q3 B 11 O4 W 12 R6 B 13 F16 W 14 D14 B 15 J16 W 16 Q17 B 17 O17 W 18 Q15 B 19 Q14 W 20 P15 B 21 S16 W 22 R16 MARK A@P17 B@R18 COM White 22: He must play at 30 (A). Black's kikashi at 25 (B) is too good to allow. ENDCOM VAR W 1 P17 ENDVAR B 23 S15 W 24 S17 B 25 R18 W 26 R17 B 27 R11 W 28 M17 MARK A@N16 B@Q18 COM White 28: An overplay, but black 29 (B) is worse - black must come out with 34 (A). Even if white gets to play at 29, he is not completely alive. ENDCOM B 29 Q18 VAR B 1 N16 ENDVAR W 30 P17 B 31 P18 W 32 O16 B 33 N17 W 34 N16 B 35 M18 W 36 N18 B 37 O18 W 38 L18 B 39 N19 W 40 L16 B 41 K17 W 42 L17 B 43 M15 MARK K17 COM Black 43 should be played before 41. It is unreasonable to hope for answers to both these moves. ENDCOM W 44 M16 MARK A@L15 M15 COM White 44: However it works - white absolutely must play 44' at A. In the game, black 43 becomes light, and white is under severe attack. ENDCOM VAR W 1 L15 ENDVAR B 45 K14 W 46 P13 B 47 Q13 W 48 P12 B 49 D6 W 50 F4 B 51 E3 W 52 E4 B 53 G4 W 54 D3 B 55 G5 W 56 G3 B 57 G2 W 58 H3 B 59 H2 W 60 E6 B 61 E7 MARK A@C12 E@J4 C@D5 D@C6 B@D8 COM Black 61 seems natural, preparing to play 63 (A) and make some territory on the side, but its main effect is to help white expand his corner, both by pulling out with 64 (E) and by forcing with 80 (D) and 82 (C). 61' at B would be normal. ENDCOM VAR B 1 D8 ENDVAR W 62 F6 B 63 C12 W 64 J4 B 65 J3 MARK D@K4 C@J5 E@S15 COM Black 65' should be at 67 (D) first. This forces C, after which 65 gives white an empty triangle. ENDCOM VAR B 1 K4 W 2 J5 B 3 J3 W 4 H4 ENDVAR W 66 H4 B 67 K4 W 68 H6 B 69 C15 W 70 E16 B 71 E17 W 72 D16 B 73 C14 W 74 F17 B 75 G17 W 76 F18 B 77 G16 MARK D@F15 E@E14 COM Black 77: Too slow - the black group becomes weak as well as overconcentrated. The ordinary move here would be D, but 92 (E) might be even better. ENDCOM VAR B 1 F15 ENDVAR VAR B 1 E14 ENDVAR W 78 E18 B 79 D9 W 80 C6 B 81 C7 W 82 D5 B 83 D7 W 84 D13 B 85 C11 W 86 K15 B 87 J15 W 88 J14 B 89 F14 W 90 J13 B 91 G13 W 92 E14 B 93 P14 W 94 O14 B 95 J6 MARK A@O13 E@P11 COM Black 95: A ladder breaker, so that 97 (A) does not die simply, but even so, 97 feels like a bit of an overplay. If 98' had simply extended downwards at E, black would have a lot of work to do. ENDCOM W 96 H5 B 97 O13 W 98 O12 B 99 N13 W 100 N12 B 101 N14 W 102 O15 B 103 M12 W 104 L14 B 105 M11 W 106 M13 B 107 L13 W 108 N15 MARK A@K13 COM White 108: Incomprehensible - white could have forced 109 with 110 (A), and it is hard to imagine that he would then have continued at 108. ENDCOM VAR W 1 K13 B 2 M14 ENDVAR B 109 M14 W 110 K13 B 111 O10 COM Black 111: Very sharp - there is no way for the four white stones to escape. ENDCOM W 112 P10 B 113 P11 W 114 Q12 B 115 R12 W 116 L19 COM White 116: Strange - if this had been one point to the left, he could have connected along the edge. [webmaster:] Can't he now connect along the edge anyway, with G19? ENDCOM VAR W 1 K19 ENDVAR B 117 M19 W 118 E11 B 119 G11 W 120 H14 B 121 F13 W 122 E9 B 123 D10 W 124 E10 B 125 G9 W 126 H10 B 127 G10 W 128 F8 B 129 H9 W 130 H12 B 131 G12 W 132 J9 B 133 G7 W 134 G6 B 135 F7 W 136 D12 B 137 H7 MARK F@L9 A@B6 B@R8 COM Black 137: Now that the last weak group is connected to safety, black is clearly ahead. But a string of slack moves lets it get close. Black 137 does nothing except save black's stones. If Jim was really worried about the connection in this area, at least he could have played F, preparing an attack on the big white group at the top. Actually it was quite safe to take one of the big points at 138 (A) and 149 (B). ENDCOM W 138 B6 B 139 B7 W 140 Q10 B 141 Q11 W 142 O9 B 143 N9 W 144 N8 B 145 O8 W 146 P9 B 147 M9 W 148 O7 B 149 R8 W 150 Q8 B 151 R9 W 152 D2 B 153 F2 COM Black 153-159: It is hard to believe that Black is trying to win. The golden rule of yose is not to answer your opponent unless it is absolutely forced. If White had played 160' at 171 he would probably be a few points ahead. ENDCOM W 154 B16 B 155 B14 W 156 A7 B 157 A8 W 158 A6 B 159 C8 W 160 S18 MARK A@O2 COM If White had played 160' at 171 (A) he would probably be a few points ahead. ENDCOM VAR W 1 O2 ENDVAR B 161 R7 COM Black 161: What happens if this is played one point to the left? ENDCOM VAR B 1 Q7 ENDVAR W 162 Q6 B 163 N6 W 164 M8 B 165 L6 W 166 L9 B 167 M10 W 168 K7 B 169 P2 COM Black 169: Worth 10 points, which is more than most of the preceding 30 moves. ENDCOM W 170 Q2 B 171 O2 W 172 K6 B 173 K5 W 174 L7 B 175 M6 W 176 S6 B 177 S7 W 178 T16 B 179 T14 W 180 A15 B 181 T6 W 182 T5 B 183 T7 W 184 S4 B 185 R10 W 186 A14 B 187 B13 W 188 G18 B 189 H18 W 190 J18 B 191 H19 W 192 J17 B 193 H17 W 194 K16 B 195 J19 W 196 K18 B 197 F15 W 198 H15 B 199 H16 W 200 L12 B 201 M13 W 202 L11 B 203 J10 W 204 L10 B 205 H11 W 206 R14 B 207 R13 W 208 O6 B 209 O5 W 210 J7 B 211 D11 W 212 E12 B 213 Q1 W 214 R1 B 215 P1 W 216 R2 B 217 E8 W 218 F9 B 219 J12 COM Black won by 8.5 ENDCOM