EVENT WHITE Terry Stacey, 5d BLACK Matthew Macfadyen, 6d RESULT B+R BOARDSIZE 19 KOMI 5.5 SOURCE BGJ61. March 1984. Page 10. COM Black: Matthew Macfadyen, 6d White: Terry Stacey, 5d Komi: 5.5 Timelimit: 3hours Result: B+Resign Source: BGJ61. March 1984. Page 10. Copyright British Go Association 1984,1999 Black Rank: 6 dan Write Rank: 5 dan ENDCOM B 1 Q16 W 2 D17 B 3 Q4 W 4 C4 B 5 E4 W 6 E3 B 7 F3 W 8 D3 B 9 F4 W 10 C6 B 11 K4 W 12 O17 B 13 Q10 W 14 R14 B 15 P15 W 16 Q12 B 17 N16 W 18 S16 B 19 C15 W 20 R17 B 21 F16 W 22 D15 B 23 D16 W 24 E16 B 25 C16 W 26 E17 B 27 E15 W 28 F15 B 29 D14 W 30 E14 B 31 S15 COM Black 31: The first crisis of this game came early, with my play at 31. The purpose of this stone is to create a huge ko threat, so that the sequence in Dia 1 (variation to move 32) becomes possible. Actually it would have been better for Terry to follow Dia 1. ENDCOM W 32 D15 VAR W 1 R15 B 2 F14 W 3 D15 B 4 R16 W 5 S18 B 6 E15 W 7 G15 B 8 E13 W 9 G16 B 10 Q6 MARK A@R13 COM Actually it would have been better for Terry to follow Dia 1 (this variation). Although he loses out in the top lef t corner there, his upper right position has been strengthened considerably (black A may be useful later but there is hardly any other useful aji), and the marked white stone is ideally placed to restrict the influence of black's stones in the upper left. ENDCOM ENDVAR B 33 R15 W 34 P18 B 35 E15 W 36 E13 B 37 C17 W 38 D13 B 39 D15 W 40 G16 B 41 G15 W 42 F17 B 43 F14 W 44 F16 B 45 G14 W 46 J16 B 47 C13 W 48 C12 B 49 D12 MARK 48@C12 A@D11 COM Black 49: The next crisis came with black 49. Terry should have prepared an answer to this before playing 48 - if he couldn't find one then 48' must be at 53(A). ENDCOM W 50 B13 B 51 C14 W 52 E12 MARK A@C11 B@F12 COM White 52 is definitely bad - he should either play 54(A), letting black capture 3 stones in a ladder and then try to disrupt the lower right corner with a ladder breaker - or play 52' at 63(B), which gets tricky. In the game, black captures four stones cleanly and is left clearly ahead. ENDCOM B 53 D11 W 54 C11 B 55 D10 W 56 C10 B 57 F11 W 58 O13 B 59 N14 W 60 N13 B 61 M14 W 62 H15 MARK A@F12 B@C9 C@B8 COM White 62 threatens to save his four stones in the centre (do you see how?) and forces 63(A), but this exchange loses out on the left, since black now has the 71(B), 73(C) exchange which either captures three stones or breaks up the white side position. ENDCOM B 63 F12 W 64 L12 B 65 Q14 W 66 R8 B 67 R6 MARK A@R12 COM Black 67, White 68: The exchange of 67 for 68 allows white to secure his position on the side, which is bad locally, but I was trying to find a satisfactory way to complete my eyeshape with the group at the top. If 68' had jumped out two points to the left of 66, then I would have played at 70(A) which would have been ideal, leaving White's side position overconcentrated and Black's group alive with territory. In the game the black group is still not quite secure, but white has farther to reach to get into the lower side. It is hard to say which is better for him. ENDCOM W 68 R10 B 69 R13 W 70 R12 B 71 C9 W 72 B9 B 73 B8 W 74 C8 B 75 D9 W 76 B7 B 77 P3 MARK 72@B9 74@C8 COM Black 77: It is tempting to cut above 72 and capture three stones, which is worth 20 points, but 77 is about the same size even if we only count the value of the corner and it also threatens to make a huge territory on the lower side. I felt that 78 was going to be too slow for White, and expected him to invade the lower side. My plan was then to let him live, but concentrate on keeping sente with which to go back to the left side. Note also that, depending on what happens in the centre, black might prefer the atari to the right of 74 instead of the one above 72. ENDCOM W 78 A8 B 79 Q17 W 80 Q18 B 81 N17 W 82 N18 B 83 M18 W 84 O16 B 85 N19 W 86 O18 B 87 L16 MARK 84@O16 COM Black 87: After 87, the white corner can be killed in ko ( see the problem on page 17. White could chose to save it by pushing out below 84, but this would be dangerous, since his group in the upper left is not quite secure. The momentum of the game is going against White, however, and it seems necessary to do something to disrupt it. When Black plays 89, the game runs right out of White's control. ENDCOM W 88 S18 B 89 Q8 W 90 Q9 B 91 P9 W 92 R9 B 93 Q7 W 94 M3 COM White 94: White's invasion is very deep indeed, and it is tempting to try to kill it unconditionally. However black has enough territory to win without killing this group (count the game for yourself and see) and can afford to concentrate on making everything solid so as to leave no chance for white to do anything alarming. ENDCOM B 95 K3 W 96 R3 B 97 R4 W 98 M5 B 99 L6 W 100 O3 B 101 P2 W 102 N7 B 103 L8 W 104 N9 B 105 K18 W 106 J18 B 107 E7 W 108 S13 B 109 S14 W 110 Q13 COM White 110 tempts black to start a ko in which his whole group could get into trouble. ENDCOM B 111 K17 COM Black 111 makes sure of black's eye shape while aiming at the upper left group. ENDCOM W 112 P14 B 113 O14 W 114 P13 B 115 O15 W 116 E6 B 117 F6 W 118 F7 B 119 E8 W 120 G6 B 121 F5 W 122 J8 B 123 M9 W 124 M8 B 125 L9 W 126 J10 B 127 N10 W 128 O9 B 129 O10 MARK A@O8 B@N8 COM Black 129' should be one point below 128(at A), making miai of 129 and 136(B). This would prevent white from making an eye and probably kill the group. ENDCOM W 130 P8 B 131 P10 W 132 P7 B 133 P6 W 134 O7 B 135 M7 W 136 N8 B 137 O5 W 138 N5 B 139 L11 W 140 O4 B 141 L5 W 142 L4 B 143 N2 W 144 P5 B 145 K11 W 146 H12 B 147 J13 W 148 J12 B 149 H9 W 150 H10 B 151 K14 W 152 K12 B 153 H18 W 154 C18 B 155 B18 W 156 B19 B 157 D18 W 158 D19 B 159 C19 W 160 H17 B 161 G18 W 162 C18 B 163 S12 W 164 S11 B 165 C19 W 166 J14 B 167 H14 W 168 C18 B 169 O6 W 170 N6 B 171 C19 W 172 K7 B 173 L7 W 174 C18 B 175 M13 W 176 J15 B 177 K13 W 178 M12 B 179 C19 W 180 H13 B 181 F13 W 182 C18 B 183 Q6 W 184 N3 B 185 C19 W 186 J6 B 187 J5 W 188 C18 B 189 G9 W 190 J9 B 191 C19 W 192 K6 B 193 K5 W 194 C18 B 195 J17 W 196 B17 B 197 C19 W 198 S5 B 199 S6 W 200 C18 B 201 N11 W 202 N12 B 203 C19 W 204 S4 B 205 R2 W 206 C18 B 207 L3 W 208 O2 B 209 C19 W 210 S2 B 211 Q3 W 212 C18 B 213 M2 W 214 N1 B 215 C19 W 216 S3 B 217 S1 W 218 C18 B 219 L2 W 220 M4 B 221 C19 W 222 S7 B 223 T6 W 224 C18 B 225 T13 W 226 A18 COM Terry successfully connected his centre group out, but now the upper left corner was isolated. The huge white group in the centre was too thin to allow white to fight the ko in the corner. Eventually Terry decided to ignore a ko threat and hope he could find a way to live. It didn't work. ENDCOM B 227 S9 W 228 H7 B 229 S8 W 230 H5 B 231 G5 W 232 H4 B 233 H3 W 234 R7 B 235 T7 W 236 G3 B 237 G2 W 238 G11 B 239 J11 W 240 F10 B 241 F8 W 242 M11 B 243 M10 W 244 G10 B 245 G7 W 246 J3 B 247 H2 W 248 F9 B 249 G8 W 250 P1 B 251 S10 COM White resigns after Black 251. ENDCOM