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Go opening

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36: 149: 2490: 549:, in which Black imitates White by playing diagonally opposite with respect to the centre stone. There is another style, also called mirror go, where from the beginning of the game White imitates Black in a diagonally-opposite way. The first kind was interesting, for strong players, before the introduction of 881:
Hence the basic definition may be misleading for new players in that joseki can be misconstrued as foolproof and unalterable, and are otherwise optimal for all situations. Some joseki are in fact useful only for study within an artificially confined corner, and in real play are only considered good
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Examples of principles that are generally useful are comments such as 'corner-side-centre', which says that the corner areas of the board are more valuable than the sides (points near an edge but away from the corners). Occupying points in the centre may be good for early fighting, but these points
448:, a Japanese term that has a literal meaning of 'scattering of stones'. This really refers, therefore, to the way the initial plays are distributed around the sides and corners. If the game begins just in one corner, which is rare for high-level play but more common with novices, this is not really 1014:
in many cases come to a definite end, after which both players should move elsewhere. In some cases a sharp local struggle breaks out, which neither player should neglect. For those cases, the result of the opening may develop out of a 10×10 corner area into the rest of the board. Analysis without
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There are 'joseki dictionaries' and 'fuseki dictionaries'. The largest joseki dictionaries contain around 50000 variations; the usual estimate is that a professional player would know about 10% of that number of corner opening lines. Fuseki dictionaries have never been produced in any comparable
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The Chinese opening has an intricate history. According to several historical accounts (both Chinese and Japanese), it was actually first developed by Japanese players, but later was heavily researched and developed by Chinese players. It was very popular from about 1970 onwards, and has by Go
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toward the sides and center. The assessment also takes into account who started and ended the corner sequence: if Black has played one more stone than White in the corner, for example, Black's result should be objectively better than White's, to reflect the extra investment of a play.
1059:(or strength) and thus establish areas of territory. There is no complete theory of go, simply because the number of possible variations makes any literal study impossible. Hence even the opening is subject to changes of fashion, and also some notable periods of innovation. 775:(Chinese fuseki). To be more precise, these are names for the moyo (framework) formations which Black makes on one side of the board. Since White has a choice of perhaps two dozen legitimate variations on the other side, these are in fact large complexes of openings. 1050:
Go openings have been studied in depth for many centuries, and center upon concepts of finding balance with the opponent. Because black moves first, opening moves for black are based on the concept of exploiting that first-move advantage (along with
827:(石) means stone(s). It thus literally means "set stones", as in "set pattern". Variations are shown to lead to different positional advantages and disadvantages for the two players in certain overall game situations. If Black and White both play the 686:
is used by professionals in about 70% of corners. Corner openings for the 4-4 point are still being developed, but it is more accurate to say that almost all contemporary opening theory is implicated in the patterns around the 4-4 point.
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may be commonly used as a description for the pattern adopted by Black, the first player, for example, for Black 1-3-5. This ignores White 2 and White 4, and so is really a name for a side formation (for example,
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Certain professional players are known for their use of specific or innovative types of openings, and their ability to combine their use of those openings with other strengths in competitive play.
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for examples. "Middle game joseki" may not correspond to any definite concept translated from the Japanese technical vocabulary, however, since they may simply be classified as known "techniques".
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as a term (in literature in English) is applied to a set sequence happening in one corner in the opening stage. These sequences are not the only set sequences in the game, however. There are also
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is sometimes taken as synonymous with 'whole-board strategy'. More accurately, it means the 'scattering' or thin distribution of stones that occurs in the early part of the game. In the game of
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should be a player's goal. Hence the study of joseki is regarded as a double-edged sword and useful only if learned not by rote but rather by understanding the principles behind each move.
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is not fixed, but consists of patterns that have gained acceptance in professional games. That is, they form a consensus judgement that might change in the future, or with certain caveats.
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may fall out of use for various reasons, some of which may often seem minor to the amateur player, and professionals may consider one variation suboptimal for a very specific reason.
871:. Other examples are common techniques for invading or reducing frameworks. Learning to apply these so-called "middle game joseki" is one of the steps to becoming strong. 1280: 482:. There are many thousands of these standard variations known, related to developments in just one 10×10 corner of the board. In English, they are almost always called 889:
simply means that one knows a sequence of moves, resulting in a balance or fair trade-off between their positions. This is in practice much easier than appraising how
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should be used as a specific tool that leaves the board in a particular shape. Just as using an improper tool in machinery can be devastating, choosing the wrong
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correctly, they should achieve a balanced result within that particular corner; neither should have a large advantage, unless the opponent makes a mistake.
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dictionaries is similar to that of natural language dictionaries, in that some entries are obsolete and the listing is not likely to be complete. Studying
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professionals into international competitions in the early 1990s saw the use of 'prepared variations' of whole-board openings, in a way not seen before.
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openings. Each type constitutes a series of plays which have been studied for their balance (with the other) as well as for countermoves.
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taking into account what other stones are in place then becomes somewhat meaningless. The longest 'book' corner openings are about 50-
423:. Because of the symmetry of the board (eight-fold), there are certain conventions about displaying opening moves traditional in 467:, where Black 1 and Black 3 are at 4-4 points in the north-east and south-west corners). The Korean-language term equivalent to 682:
Contemporary Go opening strategy is more complicated than the old corner opening/whole-board opening distinction suggests. The
582:. Since there is great freedom of choice, the fundamental opening principles are more useful for all players before they reach 372: 1284: 1991: 1323: 603:
The opening strategy in Go can be said to have undergone some major changes in the twentieth century. Not only have new
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There are some conventional divisions that are applied. Firstly there is the distinction that may be drawn between
79: 2368: 1986: 834:"Balance" typically refers to an equitable trade-off between securing territory in the corner versus making good 647:
of 4.5 points in most top tournaments of the 1950s led to a tighter, territorial style for Black, for example in
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is a kind of experimental opening, and has at times in history been controversial. It may lead to what is called
2049: 1087:, the top player of the time. Go lost the controversial four-month game, which was played over 14 sessions in a 2445: 57: 1022:
Most corner openings do not have special or picturesque names. A few that do are known by Japanese names: the
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is regarded as shallow, when compared with the ability to integrate a strategy into a complex game landscape.
1007:. It is, however, an important component of Go knowledge, though there is no single, codified source for it. 908:
loses two stones in strength," meaning that rote learning of sequences is not advantageous. Rather learning
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are deviated from depending on the needs of the situation, and the opportunities available. While learning
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form when used in proper combination with other plays on the board (i.e. other joseki and fuseki moves).
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plays in the corners are more efficient for making territory than plays on the sides or in the center.
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is a tool to defend against a local loss, players can seek to take advantage by deviating from the
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with older techniques for a more balanced approach, forming the basis of modern professional play
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Opening theory is less dominant in terms of study for those wanting to reach a good amateur
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The opening is conceptually and traditionally divided for study into the sequences that are
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dominated thinking from the early 1970s, and many further ideas were tried, for example the
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Only a relatively small proportion of openings have a recognised name. These include the
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in 1933 and for a few years afterwards, a very different and experimental style called
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On the other hand, the evaluation of the result as fair has to take into account both
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been developed, but some important shifts in thinking have occurred. For example:
408:. There is some specialised terminology for go openings. The precise meanings of 2168: 2154: 2072: 1950: 1900: 1861: 1385: 1380: 1180: 813: 768: 659: 614: 458: 401: 307: 2436: 2253: 2203: 2142: 2065: 1880: 1820: 1795: 1752: 1735: 1723: 1084: 982: 516:
in Go that do not relate to the corner openings. The Korean term equivalent to
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studied and deemed as consisting of optimal (balanced) moves for both sides.
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For a standard board, the most basic single concept for the opening is that
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which is a side opening, rather than a corner opening or whole-board opening
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refers to an opening sequence of plays, almost always laid out the standard
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compared choosing the proper joseki to choosing the proper medicine—
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degree of comprehensiveness; the Large Fuseki Dictionary (布石大事典) of the
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pick the right one, and you feel better. Pick the wrong one and you die.
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seen in the middle game: these include standard follow-ups to earlier
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In Japanese the 10-10 point on the board (i.e. the center) is called
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In application these concepts are in fact very dynamic, and often
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in Japanese, meaning 'set pattern', is current in English usage.
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from 1900 to 1930, the strategy was traditional, the so-called
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and middle-game fighting are considered to be more important.
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the opening phase of the game usually lasts between 15 and 40
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dominated professional go, at least for the younger players
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There are some localised variations of this length in the
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typically begins once the basic foundational areas called
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is the strategy of where, why, in what order, and in what
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are weaker from the aspect of developing one's territory.
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playing joseki is easy choosing the right one is hard.
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The Japanese term for the opening phase of the game is
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can easily be worse than improvising one's own moves.
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the first several moves are played in Go opening. The
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This occurs when moves directly attack an opponent's
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from around 1936, there was a compromise of styles,
60:. Unsourced material may be challenged and removed. 1093:in Tokyo from 16 October 1933 to 19 January 1934. 578:in the way that they occur repeated in games, and 2512: 461:) or perhaps a diagonal formation (for example, 1072:List of Go games § The Game of the_Century 1141:, with the serious possibility of killing it. 977:is only an important part of developing one's 1317: 802:played and documented in high-level play, and 373: 893:relate to the rest of the board—hence 1324: 1310: 779:standards a thoroughly-researched theory. 380: 366: 147: 1267:"Game of the Century at Sensei's Library" 981:as a player at some levels; the study of 798:are "sequences" of moves which have been 120:Learn how and when to remove this message 1231:has around 1000 representative openings. 965:There is no definitive guide to what is 574:, the codified variations that resemble 504:. The literal meaning in Japanese is of 727:are established and "fighting" begins. 567:is the strategy applied in Go opening. 14: 2513: 1305: 677: 427:. These do not necessarily apply in 58:adding citations to reliable sources 29: 1122:Framework in English translates to 1079:played his third move (Black 5) on 589: 24: 2416:Taiwan Chi Yuan Culture Foundation 1109:The opening is normally around 20 1065: 932:A Way of Play for the 21st Century 599:Developments over the last century 396:is the initial stage of a game of 25: 2532: 2488: 823:(定) means "fixed" or "set", and 34: 2369:All Japan Student Go Federation 1273: 1259: 1234: 1215:The Midde Game of Go: Chubansen 1010:The standard sequences for the 45:needs additional citations for 2446:Games played with Go equipment 1220: 1203: 1186: 1173: 1159: 1144: 1131: 1116: 1103: 412:terms is often misunderstood. 13: 1: 1096: 769:"Pinwheel" or Shusaku opening 734:openings and those that are 874:The current body made up of 7: 2411:Singapore Weiqi Association 2356:International Go Federation 1156:is also current in English. 988: 904:that states that "learning 10: 2537: 2123:Long Ode to Watching Weiqi 1069: 1045: 786: 696: 651:, with greater use of the 27:Initial moves of a Go game 2483: 2424: 2334:Chinese Weiqi Association 2316:Australian Go Association 2301: 2179: 2058: 2000: 1943: 1852: 1714: 1436: 1371: 1341: 1194:who started in the corner 1083:, in a 1933 game against 812:is a Japanese word (定石) ( 782: 690: 508:(i.e., fixed or settled) 326:Computers and mathematics 278:Players and organizations 2401:Mind Sports Organisation 2339:Hong Kong Go Association 2050:Lee's broken ladder game 1928:Nihon Ki-in Hall of Fame 951:similarly remarked that 354:AlphaGo versus Lee Sedol 2389:Korea Baduk Association 2351:French Federation of Go 2311:American Go Association 2266:Monte Carlo tree search 2040:The Game of the Century 1040:Magic sword of Muramasa 524:, often transliterated 222:(corner-based openings) 2406:New Zealand Go Society 2346:European Go Federation 2321:British Go Association 2081:The Girl Who Played Go 1935:Professional handicaps 1331: 1198:who ended the sequence 664:mini-chinese formation 417:go whole-board opening 214:(whole-board openings) 2020:AlphaGo vs. Lee Sedol 969:; the situation with 885:Knowing a particular 580:go opening principles 537:. An opening play at 400:. 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2319: 2317: 2314: 2312: 2309: 2308: 2306: 2304: 2303:Organizations 2300: 2292: 2289: 2287: 2284: 2282: 2281:KGS Go Server 2279: 2278: 2277: 2274: 2272: 2269: 2267: 2264: 2262: 2259: 2255: 2252: 2250: 2247: 2245: 2242: 2240: 2237: 2235: 2232: 2230: 2227: 2225: 2222: 2220: 2217: 2215: 2212: 2210: 2207: 2205: 2202: 2200: 2197: 2196: 2195: 2192: 2190: 2187: 2186: 2184: 2182: 2178: 2172: 2171: 2167: 2165: 2164: 2160: 2158: 2157: 2153: 2151: 2148: 2146: 2145: 2141: 2139: 2138: 2134: 2132: 2131: 2127: 2125: 2124: 2120: 2118: 2117: 2113: 2111: 2110: 2106: 2104: 2103: 2099: 2097: 2096: 2095:The Go Player 2092: 2090: 2089: 2088:The Go Master 2085: 2083: 2082: 2078: 2076: 2075: 2071: 2069: 2068: 2064: 2063: 2061: 2059:Art and media 2057: 2051: 2048: 2046: 2043: 2041: 2038: 2036: 2033: 2031: 2028: 2026: 2023: 2021: 2018: 2016: 2013: 2011: 2008: 2007: 2005: 2003: 1999: 1993: 1990: 1988: 1987:Title holders 1985: 1983: 1982: 1978: 1976: 1973: 1969: 1968: 1964: 1962: 1959: 1958: 1957: 1954: 1952: 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1542: 1538: 1536: 1535: 1531: 1529: 1528: 1524: 1522: 1521: 1517: 1515: 1514: 1510: 1508: 1507: 1503: 1501: 1500: 1496: 1492: 1488: 1486: 1483: 1481: 1480: 1475: 1473: 1470: 1468: 1467: 1463: 1461: 1458: 1456: 1455: 1451: 1449: 1448: 1444: 1443: 1441: 1439: 1435: 1427: 1426: 1422: 1420: 1417: 1415: 1412: 1411: 1410: 1407: 1403: 1402: 1398: 1396: 1395: 1391: 1390: 1389: 1388: 1384: 1382: 1379: 1378: 1376: 1374: 1370: 1364: 1361: 1359: 1358: 1354: 1352: 1349: 1348: 1346: 1344: 1340: 1336: 1335: 1327: 1322: 1320: 1315: 1313: 1308: 1307: 1304: 1287:on 2010-02-19 1286: 1282: 1276: 1268: 1262: 1255: 1251: 1248:, and in the 1247: 1243: 1237: 1230: 1223: 1216: 1212: 1206: 1199: 1195: 1189: 1182: 1176: 1169: 1168: 1162: 1155: 1154: 1147: 1140: 1134: 1127: 1126: 1119: 1112: 1106: 1102: 1094: 1092: 1091: 1086: 1082: 1078: 1073: 1063: 1060: 1058: 1054: 1043: 1041: 1037: 1033: 1032: 1027: 1026: 1020: 1018: 1013: 1008: 1006: 1005: 1000: 996: 986: 984: 980: 976: 972: 968: 963: 961: 956: 954: 950: 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284: 283: 282: 281: 277: 276: 271: 270:List of games 268: 266: 263: 261: 258: 256: 253: 251: 248: 247: 246: 245: 241: 240: 234: 233: 229: 227: 224: 221: 220: 216: 213: 212: 208: 205: 201: 197: 194: 192: 189: 187: 186:List of terms 184: 182: 179: 175: 172: 171: 170: 167: 165: 162: 161: 160: 159: 155: 154: 150: 146: 145: 142: 139: 138: 134: 133: 124: 121: 113: 102: 99: 95: 92: 88: 85: 81: 78: 74: 71: –  70: 66: 65:Find sources: 59: 55: 49: 48: 43:This article 41: 37: 32: 31: 19: 2461: 2438: 2374:Kansai Ki-in 2329:China Qiyuan 2209:AlphaGo Zero 2169: 2162: 2155: 2143: 2136: 2128: 2122: 2115: 2109:Hikaru no Go 2108: 2101: 2094: 2087: 2080: 2073: 2066: 1980: 1966: 1906: 1869: 1862: 1842: 1835: 1826: 1805: 1783: 1774: 1767: 1760: 1746: 1729: 1704: 1692: 1687:Shoulder hit 1675: 1668: 1661: 1639: 1632: 1625: 1618: 1611: 1599: 1582: 1575: 1568: 1561: 1554: 1547: 1540: 1533: 1526: 1519: 1512: 1505: 1498: 1494: 1490: 1478: 1465: 1453: 1446: 1424: 1400: 1393: 1386: 1356: 1332: 1289:. Retrieved 1285:the original 1275: 1261: 1249: 1245: 1241: 1236: 1222: 1214: 1205: 1197: 1193: 1188: 1175: 1165: 1161: 1151: 1146: 1133: 1128:in Japanese. 1123: 1118: 1105: 1088: 1080: 1075: 1061: 1049: 1029: 1023: 1021: 1009: 1002: 992: 974: 970: 966: 964: 959: 957: 952: 940: 930: 929:In his book 928: 923: 919: 917: 912: 909: 905: 899: 894: 890: 886: 884: 880: 875: 873: 868: 864: 860: 858: 853: 849: 845: 843: 835: 833: 828: 824: 820: 816: 809: 808: 794: 793: 792: 777: 762: 752: 746: 742: 740: 735: 731: 729: 724: 712: 704: 702: 691: 681: 671:South Korean 642: 635: 631:sugou fuseki 629: 620: 604: 602: 593: 579: 571: 569: 564: 560: 556: 550: 546: 538: 532: 530: 525: 521: 517: 513: 512:. There are 509: 505: 501: 497: 489: 483: 477: 472: 468: 462: 453: 449: 443: 439: 437: 414: 393: 391: 318:Competitions 235:(Go puzzles) 230: 217: 209: 195: 174:professional 116: 110:January 2021 107: 97: 90: 83: 76: 69:"Go opening" 64: 52:Please help 47:verification 44: 2521:Go openings 2379:Nihon Ki-in 2219:Crazy Stone 1992:Tournaments 1944:Competition 1876:Emperor Yao 1606:Monkey jump 1576:Korigatachi 1472:Divine move 1229:Nihon Ki-in 1139:weak groups 900:There is a 732:whole board 721:middle game 464:tasukiboshi 402:19×19 board 344:Go software 339:Computer Go 2468:Capture go 2249:Leela Zero 2224:Darkforest 2130:The MANIAC 1747:Shinfuseki 1291:2019-12-07 1256:may arise. 1211:Sakata Eio 1097:References 1055:) to gain 997:, than in 949:Rui Naiwei 902:go proverb 725:frameworks 649:Sakata Eio 636:shinfuseki 622:shinfuseki 584:dan player 394:Go opening 80:newspapers 2214:AlphaZero 2181:Computers 1896:9 Pin Zhi 1886:Four arts 1801:Mirror Go 1741:Kobayashi 1699:Thickness 1414:Clamshell 1373:Equipment 1351:Handicaps 1077:Go Seigen 1057:influence 1036:avalanche 937:Go Seigen 837:thickness 819:), where 817:jeongseok 754:sanrensei 684:4-4 point 653:3-3 point 644:komidashi 561:komidashi 552:komidashi 543:mirror go 522:jeongseok 500:, but of 492:is not a 255:Equipment 169:Handicaps 2515:Category 2500:Category 2456:Variants 2286:Pandanet 2229:Fine Art 2102:Go World 1907:Oshirogo 1811:Proverbs 1343:Overview 1254:ko fight 989:Concepts 979:strength 859:Usually 764:nirensei 452:. Also, 291:European 260:Variants 204:strategy 181:Proverbs 2276:Servers 2199:AlphaGo 2194:Engines 2156:Shibumi 2067:AlphaGo 1981:Jubango 1913:Players 1891:Hoensha 1854:History 1843:Tsumego 1827:Ponnuki 1753:Shusaku 1736:Chinese 1640:Myoushu 1619:Myoushu 1594:Liberty 1555:Kikashi 1477:Double 1394:Katsura 1046:History 1038:), the 955:(par.) 586:level. 526:jungsuk 494:synonym 286:Players 250:History 232:Tsumego 196:Opening 94:scholar 2385:Korea 2365:Japan 2325:China 2239:KataGo 2234:GNU Go 1836:Tenuki 1791:Ladder 1775:Taisha 1768:Nadare 1761:Jōseki 1730:Fuseki 1693:Tesuji 1662:Sabaki 1651:Pincer 1626:Nakade 1589:Ladder 1583:Kosumi 1534:Kakari 1527:Joseki 1513:Hayago 1499:tenuki 1409:Stones 1250:taisha 1196:, and 1167:Joseki 1153:fuseki 1090:ryokan 1081:tengen 1031:nadare 1028:, the 1025:taisha 1012:joseki 975:joseki 971:joseki 967:joseki 960:joseki 924:joseki 920:joseki 918:Every 913:joseki 906:joseki 891:joseki 887:joseki 876:joseki 869:joseki 865:joseki 861:joseki 854:joseki 850:joseki 846:joseki 829:joseki 814:Korean 810:Joseki 795:Joseki 789:Jōseki 783:Jōseki 736:corner 717:shapes 705:fuseki 699:Fuseki 692:Fuseki 606:joseki 547:manego 539:tengen 534:tengen 518:joseki 514:joseki 510:stones 490:joseki 485:joseki 473:poseok 469:fuseki 454:fuseki 450:fuseki 445:fuseki 296:Female 219:Jōseki 211:Fuseki 200:theory 96:  89:  82:  75:  67:  2462:Batoo 2425:Other 2291:Tygem 2244:Leela 2144:Ranka 1816:Shape 1786:fight 1682:Shape 1676:Sente 1656:Probe 1633:Nerai 1541:Keima 1495:sente 1454:Atari 1438:Terms 1425:Yunzi 1419:Slate 1387:Goban 1381:Bowls 1363:Rules 1181:goban 1113:long. 1053:sente 1004:shogi 999:chess 995:level 557:after 440:joban 433:Korea 429:China 425:Japan 406:plies 164:Rules 101:JSTOR 87:books 2473:Sygo 2439:kifu 1705:Yose 1669:Seki 1646:Peep 1612:Moyo 1600:Miai 1569:Komi 1548:Kiai 1520:Jigo 1506:Hane 1497:and 1491:Gote 1485:Eyes 1479:hane 1466:Dame 1401:Kaya 1357:Komi 1242:kado 1209:See 1125:moyo 945:par. 910:from 825:seki 771:and 658:the 73:news 2254:Zen 1967:Kyū 1961:Dan 1447:Aji 1111:ply 1017:ply 1001:or 947:) 767:), 757:), 520:is 506:set 496:of 471:is 431:or 56:by 2517:: 1784:Ko 1562:Ko 1493:, 1334:Go 1213:, 1019:. 958:A 935:, 821:jo 711:, 709:Go 563:. 528:. 488:; 475:. 415:A 398:Go 392:A 202:; 141:Go 2441:) 1325:e 1318:t 1311:v 1294:. 1269:. 1034:( 943:( 761:( 751:( 381:e 374:t 367:v 206:) 198:( 123:) 117:( 112:) 108:( 98:· 91:· 84:· 77:· 50:. 20:)

Index

Go opening theory

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"Go opening"
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Go

Rules
Handicaps
professional
Proverbs
List of terms
Strategy and tactics
Opening
theory
strategy
Fuseki
Jōseki
Life and death
Tsumego
History
Equipment
Variants

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