EVENT BOARDSIZE 19 BLACK Unknown WHITE Unknown HANDICAP 4 RESULT B+Resign SOURCE BGJ 8, Spring 1969, Page 14 SETUP B d16 q16 q4 d4 COM Copyright British Go Association 1969, 2000 ENDCOM W 1 r14 B 2 o16 W 3 f3 B 4 d6 W 5 o3 B 6 r7 W 7 k4 B 8 r15 W 9 q14 B 10 r10 MARK #9 A@o14 #6 B@q11 COM The manoeuvres up to 9 are perfectly alright, but 10' would have been better placed at B. It is 'well-balanced' with black 6 in Fig 1, and looks for a chance to attack the white group by playing at A next thereby blocking it in to the side. ENDCOM VAR B 10 q11 MARK A@o14 ENDVAR W 11 c14 B 12 c10 W 13 f17 B 14 e15 COM 14 is an easy way of playing, allowing White considerable freedom to do what he likes. It is unfavourable in this case because the black left hand side is rather open to attack with 19 etc. and so white can invade the corner without coming under any disadvantage at all. Hence 14' should have been replaced by 1 in the two variations. Both of these are advisable joseki in this case. ENDCOM VAR B 14 f16 W 15 g16 B 16 f15 W 17 e17 B 18 d17 W 19 d13 B 20 c15 W 21 b15 B 22 d14 W 23 b14 B 24 b16 W 25 f13 B 26 g14 MARK ALL ENDVAR VAR B 14 f16 W 15 g16 B 16 f15 W 17 c17 B 18 e17 W 19 g17 B 20 c16 W 21 b16 B 22 b18 W 23 b17 B 24 c18 W 25 c12 MARK ALL ENDVAR W 15 c17 B 16 c16 W 17 d17 B 18 g15 W 19 e10 B 20 d8 W 21 c11 B 22 b11 MARK A@d11 COM The sequence up to 28, though safe and secure, has resulted in a rather unsatisfactory formation for black. A more positive and offensive alternative would be to play as the variation. If white reacts with 25' as the second variation, then black is alright if he replies as shown. ENDCOM VAR B 22 d11 W 23 d10 B 24 c12 W 25 b11 B 26 c9 W 27 d12 B 28 e11 W 29 b12 B 30 f10 ENDVAR VAR B 22 d11 W 23 d10 B 24 c12 W 25 c9 B 26 b11 PRISONER c11 W 27 b10 B 28 c11 W 29 d9 B 30 e8 MARK ALL ENDVAR W 23 b10 B 24 b9 W 25 d10 B 26 c9 W 27 b12 B 28 a10 PRISONER b10 COM The sequence up to 28, though safe and secure, has resulted in a rather unsatisfactory formation for black. A more positive and offensive alternative would be to play the variation to move 22. ENDCOM W 29 d12 B 30 h17 COM Black 30 is a good move, preventing White from playing here, which would be a natural extension from the corner, attacking white and building up his influence on the upper side. ENDCOM W 31 e16 MARK A@q11 B@h16 COM 31 is not so good. it should have been played at A, which aims next at playing at B. This could then not be captured by black in a ladder because of A and so this cut would then threaten black's four upper left stones. ENDCOM VAR W 31 q11 ENDVAR B 32 f16 W 33 e17 B 34 g17 W 35 d15 MARK A@o14 C@n16 COM Though white gains greatly by capturing two black stones with 35, black 36(A) gives much trouble to his two stones and at the same time continues the build up of black influence on the upper side. Playing C goes a long way to prevent the expansion of black's sphere of influence, while saving his two stones from great hardship. ENDCOM VAR W 35 n16 ENDVAR B 36 o14 W 37 p11 B 38 r12 COM 38 strikes at the vital point of the white group in preventing it from gaining any eyes along the side, but 40' should have continued the attack as the variation here, then black gains an advantage with ease by being able to attack two white groups simultaneously. ENDCOM VAR B 38 r12 W 39 p13 B 40 n12 W 41 o10 B 42 m10 W 43 o8 B 44 o4 W 45 n4 B 46 o5 ENDVAR W 39 p13 B 40 q3 W 41 r17 B 42 q17 MARK D@p18 COM If Black tries to resist 41 by playing at 43, white will be able to get a live group inside the corner, and thereby ruin it by playing at D. So 42-46 are forced. ENDCOM VAR B 42 s15 ENDVAR W 43 s15 B 44 r16 W 45 s16 B 46 s17 MARK D@p18 W 47 r8 COM 47 is an advanced play, seeing how black will respond before making a direct invasion of the lower right corner or the right side. ENDCOM B 48 q8 W 49 q7 B 50 s8 W 51 r6 B 52 r9 PRISONER r8 W 53 q6 B 54 s4 MARK A@p5 COM Black answers correctly up to 54. This should have been played at 65(A), thereby dividing White's army into two weak groups. Protecting the corner is all very well, but not at the cost of being shut out of the centre and being able to attack strongly. ENDCOM W 55 s7 B 56 o8 W 57 n12 B 58 o5 W 59 r8 PRISONER r7 B 60 p9 W 61 s9 B 62 r7 PRISONER r8 W 63 o6 B 64 r8 W 65 p5 COM With 65 White has managed to connect his two groups, but his upper right group is still precarious. ENDCOM B 66 o2 W 67 n3 B 68 s13 W 69 s14 B 70 n2 MARK A@m2 B@p2 COM 70 is not good. Black is forced to play at 72(B) to secure the corner on gote and, because of 71(A), he can't intrude much further into the lower side. He should simply have played at 72; this would then have threatened to play later at 71 and destroy nearly all this side. ENDCOM W 71 m2 B 72 p2 W 73 l15 COM Black answers the attack on the upper side, starting with 73 with commendable coolness, and, though he gives up three stones, 90 and 92 weaken the White group on the right further. ENDCOM B 74 l17 W 75 n15 B 76 m16 W 77 k17 B 78 k16 W 79 l16 B 80 l18 W 81 m17 B 82 m18 W 83 m15 B 84 n16 W 85 j16 B 86 k15 W 87 k14 B 88 j15 W 89 h15 B 90 j14 COM Black answers the attack on the upper side, starting with 73 with commendable coolness, and, though he gives up three stones, 90 and 92 weaken the White group on the right further. ENDCOM W 91 h14 B 92 j13 W 93 h16 B 94 j17 W 95 g16 B 96 o15 W 97 c3 COM White invades black's last open corner with 97, which is correctly answered with 98-102, keeping sente, protecting his left hand side and letting the corner group connect to the lower side because a disconnection would gain him nothing of any value. ENDCOM B 98 d3 W 99 d2 B 100 c4 W 101 b2 B 102 b3 MARK #97-102 COM White invades black's last open corner with 97, which is correctly answered with 98-102, keeping sente, protecting his left hand side and letting the corner group connect to the lower side because a disconnection would gain him nothing of any value. ENDCOM W 103 c2 B 104 m3 W 105 l2 B 106 m4 MARK #104-106 A@n5 COM However, 104 and 106 are premature; they are nullified by 105 and 107(A), whereas black could have gained later by playing at 105 when White cannot stop his connection without losing two stones. ENDCOM W 107 n5 B 108 m11 COM 108 starts a vicious attack on this large white group, which has no eyes along the edge and only one by capturing 108 itself. This results in White being unable to stop the capture of five stones, thereby saving the three black ones which had been lost earlier! ENDCOM W 109 n10 B 110 m9 W 111 m10 B 112 l10 W 113 l11 B 114 k10 W 115 l12 B 116 o13 W 117 o12 B 118 q12 W 119 p12 B 120 h13 W 121 n9 B 122 n8 W 123 m8 B 124 l9 W 125 j12 B 126 j11 W 127 h12 B 128 k13 W 129 k12 B 130 g14 PRISONER g16 h16 h15 h14 j16 W 131 m7 COM A quick count of the game at this point shows that white is about 25 points down at a conservative estimate, because all Black's territory is secure and White's large territory on the lower side is still very open. This coupled with the fact that, should Black try to retrieve his stones 104 and 106, White's lower right group would be in serious danger, means that White must stake all on 131, challenging Black to a life-or-death struggle in the centre. From this point on all the moves are forced by this necessity for White. ENDCOM B 132 g10 W 133 j9 B 134 h11 W 135 g12 B 136 g8 W 137 f9 B 138 g9 W 139 e7 B 140 g6 W 141 f5 B 142 k7 W 143 j6 B 144 j7 W 145 h6 B 146 h7 W 147 l8 B 148 k8 W 149 k11 B 150 g11 W 151 j10 B 152 k9 W 153 h9 MARK A@f13 B@e6 COM Notice 153; White could have saved his large group by playing at 165(A), but if he does so then Black will play at 159(B) and his stones in the centre will at worst be a seki, so he cannot afford to do so but must continue his attack. ENDCOM B 154 f8 W 155 e8 B 156 f6 W 157 f7 B 158 g7 W 159 e6 B 160 g5 MARK A@l5 #143 #145 COM 160 threatens the play at 161(A), for then black could either cut off White's stones on the right, or capture immediately 143 and 145 and thus gain two eyes. So 161 is forced. ENDCOM W 161 l5 B 162 f10 W 163 e9 B 164 f12 W 165 f13 B 166 g13 COM White resigns because Black's group will connect to the upper side, either by capturing 165, or by playing one point above 108 and capturing White's seven stones. In either case White's upper right group can't get two eyes and will die. ENDCOM