Go Seigen - Fujisawa Hosai, 1951
(;SZ[19]DT1951-10-20PBFujisawa HosaiBR9dan?PWGo SeigenWR9dan?TM13 hours?REW+R?UStasukiEVGame 1 of a ten-game match sponsored by the Yomiuri Shinbun.?;Bqd?;Wdc?;Bpq?;Wdq?;Bod? (;Wqn?C[Nowadays the approach at "a" is most common. "b" is not recommended. ];Bqp?;Wqk?;Bce?;Wdh?;Bco?;Wcl?;Bdl?;Wcm? (;Bdm?C[Black 15 should be at "a". ];Wdn?C[White's hane at 16 puts Black into an inconvenient position. ];Bep?;Wcn?;Bdo?;Wen?;Beq;Wcd?;Bgq?C[Black 23 secures the left corner and prevents the single stone having any aji. ];WdeC[White 24 is a honte move. ] (;BqiC[Black could also play 25 at "a". ];Wjc? (;Bie?C[Black 27 is a good erasure. To play at "a" is bad. ];Wmc?C[White avoids playing at A because it would be submissive. ]LB[hd:A];Bld?C[Black 29 is a tesuji. ] (;Wje?C[Similarly, White avoids playing at "a" because it would also be submissive. ];Blc?;Wkf?C[White 32 is unusual; it would normally be at A. ]LB[if:A];Bdj;Wmf?;Bne?;Wfi?C[With the moves of 34 and 36, White is in a good position. ]LB[mf:34][ne:35];Bfl?;Wfm? ;Bek?;Whp?;Bhq?;Wip?;Biq?;Wck?;Bjp?;Wjo?;Bkp?;Whl?;Bhi?;Wgj?;Beh? ;Wei?;Bdg?C[Black 51 and 53 is a forceful attack, but perhaps a little unreasonable. White is able to press Black hard. ]LB[eh:51][ei:52];Wfh?;Beg?;Wfg?;Bee?;Wff?;Bef?;Wch?;Bed?;Wdd? ;Bid?;Wjd?;Bec?;Wgd?;Bge?C[Black 67 was the sealed move at the end of the second day. ];Wfe?;Bdb?;Wcb?;Bfb?;Whb?;Bbc?;Wbd?;Bbb? ;Wda?;Beb?;Wcc?;Bcf?;Wba?;Bab?;Wad?;Bib?C[Black 83 is a clever move. ] (;Wic?C[White could kill Black by playing 84 at "a".. ];Bgb?;Wha?C[White tries to kill everything with 84 and 86. ]LB[ic:84][gb:85];Bbg?;Wbh?;Bbe?;Wae?C[Both Go Seigen and Fujisawa misread the corner fight after this. ] (;Bgc?C[Both assumed that if Black 91 was played at "a".. ];Whc?;Bql?;Wfd?C[94 moves. White wins by resignation. After 94 the fight becomes a proper ko, so of course White ignores any ko threat Black makes. White used 7 hours 5 minutes. Black used 12 hours 47 minutes. ]) (;Baf?;Wcg?;Bdf?;Wea?;Bfa?;Wgc?C[They assumed that if Black plays 1 here, White would win the semeai after 6 by one move. After the game, the game recorder, Shiori Itsuzo 4-dan, pointed out the extraordinary tesuji that follows. ]LB[af:1][cg:2][df:3][ea:4][fa:5][gc:6][qd:1][dc:2][pq:3][dq:4][od:5][qn:6][qp:7][qk:8][ce:9][dh:10][co:11][cl:12][dl:13][cm:14][dm:15][dn:16][ep:17][cn:18][do:19][en:20][eq:21][cd:22][gq:23][de:24][qi:25][jc:26][ie:27][mc:28][ld:29][je:30][lc:31][kf:32][dj:33][mf:34][ne:35][fi:36][fl:37][fm:38][ek:39][hp:40][hq:41][ip:42][iq:43][ck:44][jp:45][jo:46][kp:47][hl:48][hi:49][gj:50][eh:51][ei:52][dg:53][fh:54][eg:55][fg:56][ee:57][ff:58][ef:59][ch:60][ed:61][dd:62][id:63][jd:64][ec:65][gd:66][ge:67][fe:68][db:69][cb:70][fb:71][hb:72][bc:73][bd:74][bb:75][da:76][eb:77][cc:78][cf:79][ba:80][ab:81][ad:82][ib:83][ic:84][gb:85][ha:86][bg:87][bh:88][be:89][ae:90] ;Bac?;Waa?;Bbb?;Wab?;Bbc?;Wfd?;Bca?;Wda?;Bea?C[Black 7 forces White 8. After 11 and 12, the position is an approach-move ko for White. Even if Black had seen the correct sequence, the game would not have been lost for White. He would have switched to A and fought on. ]LB[ab:10][fd:12][bb:9][bc:11][aa:8][ac:7][ca:13][da:13][da:14][ko:A] )) (;Wgb?;Bic?;Wfd?;Bjb?C[Black would be satisfied with linking up to the right with the moves to 4. ]LB[gb:1][ic:2][fd:3][jb:4][qd:1][dc:2][pq:3][dq:4][od:5][qn:6][qp:7][qk:8][ce:9][dh:10][co:11][cl:12][dl:13][cm:14][dm:15][dn:16][ep:17][cn:18][do:19][en:20][eq:21][cd:22][gq:23][de:24][qi:25][jc:26][ie:27][mc:28][ld:29][je:30][lc:31][kf:32][dj:33][mf:34][ne:35][fi:36][fl:37][fm:38][ek:39][hp:40][hq:41][ip:42][iq:43][ck:44][jp:45][jo:46][kp:47][hl:48][hi:49][gj:50][eh:51][ei:52][dg:53][fh:54][eg:55][fg:56][ee:57][ff:58][ef:59][ch:60][ed:61][dd:62][id:63][jd:64][ec:65][gd:66][ge:67][fe:68][db:69][cb:70][fb:71][hb:72][bc:73][bd:74][bb:75][da:76][eb:77][cc:78][cf:79][ba:80][ab:81][ad:82][ib:83] )) (;Wlc?;Bic?;Wib?;Bjd?;Wkc?;Bhc?C[This is the result that Black hopes for. ]LB[lc:1][ic:2][ib:3][jd:4][kc:5][hc:6][qd:1][dc:2][pq:3][dq:4][od:5][qn:6][qp:7][qk:8][ce:9][dh:10][co:11][cl:12][dl:13][cm:14][dm:15][dn:16][ep:17][cn:18][do:19][en:20][eq:21][cd:22][gq:23][de:24][qi:25][jc:26][ie:27][mc:28][ld:29] )) (;Blc?;Wje?C[Black 1 just prompts White to jump to 2. ]LB[lc:1][je:2][qd:1][dc:2][pq:3][dq:4][od:5][qn:6][qp:7][qk:8][ce:9][dh:10][co:11][cl:12][dl:13][cm:14][dm:15][dn:16][ep:17][cn:18][do:19][en:20][eq:21][cd:22][gq:23][de:24][qi:25][jc:26] )) (;Bjc?)) (;Beo?;Wfp?;Bdm?C[This would give Black better shape. ]LB[eo:1][fp:2][dm:3][qd:1][dc:2][pq:3][dq:4][od:5][qn:6][qp:7][qk:8][ce:9][dh:10][co:11][cl:12][dl:13][cm:14] )) (;Wpo?;Bqo?;Wqn?;Bqp?;Wpm?;Bnq?;WqiLB[po:1][qo:2][qn:3][qp:4][pm:5][nq:6][qi:7][qd:1][dc:2][pq:3][dq:4][od:5] ) (;Wqo?;Bqk?C[White would not be so good since Black 2 is a perfect extension and pincer. ]LB[qo:1][qk:2][qd:1][dc:2][pq:3][dq:4][od:5]))
SGFs taken from Vit Brunner's page http://www.ta5uki.tk/