907:
number of moves. So, in order to attack the Castle Tower Mino, instead of attacking from the side, an attack from the vertical, aimed at its weak point on the king's head, started to intermingle. In the case of Black (Sente), following the placing of the king on 39, with P-45 the rival won't be allowed to build up his ideal four-pieces Mino, and you will aim at attacking the king's head with P-26. However, if the decision to push P-26 occurs too soon, White can aim to attack with the bishop from 53, so it is necessary to be very careful.
1625:
1390:
1548:
1292:
White (gote) goes instead for an early fight, Black will switch to K-48, and then K-39 and then to a Mino castle. Although it is often thought that the distinctive initial movements are easy to imitate, it is unusually difficult even for professionals to play them thoroughly, hence the popular saying "No one but Fujii can play the Fujii system."
1689:
all the way to the middle rank 5. Black's right silver is advanced to the 67 square and the bishop diagonal has been opened by pushing the sixth file pawn to 65 allowing the bishop to attack the diagonal that White's king is positioned on (22 square) and will continue to be on if White chooses an
Anaguma castle (21 square).
1291:
In Black's (sente) case, a quick attack is started on the king by pushing on the pawn on the 1st file, as if it were a sitting king. If White's lance moves to 12 and the king manages to enter the hole in
Anaguma, Black will then attack with N-25, and then P-45 and by opening the bishop's diagonal. If
1688:
Black is employing a Fourth File Rook Fujii System position. Black's king remains in its start position. The left silver that formed a Mino castle earlier has been moved to the 47 square to protect the head of the knight that has been developed to 37 for attacking. The left edge pawn has been pushed
1314:
Although the
Millenium castle showed new developments against the Fujii system, in terms of the number of moves it took it lacked the solidity of Anaguma and the ranging rook players took advantage of that time by showing counter-measures against the building of Anaguma, so a perfect counter-measure
906:
After breaking through along the rook file, it would turn into an attack from the side, but while the king from the ranging rook's side would be on the rank 1 or rank 2, the Static Rook side's king will be on rank 3, so that when it came to an attacking race
Ranging Rook would often lose in terms of
525:
were found effective. As these castles were as solid or more than ranging rook's Mino castles, this turned further into slow game situations where only the static rook side had the liberty of initiating the attack. Furthermore, as ranging rook players had no effective countermeasure, the number of
424:
castles as well as
Anaguma castles. In the latter case, characteristically, if the opponent is aiming for an Anaguma, the strategy consists of initiating a fight before the king can be completely castled into the Anaguma with the quick attack leading to the abandoning of the opponent's Anaguma and
922:
pushing the bishop to 68 hence making a direct attack on the king's head, and attacking together with the right knight. To put it simply, the measures of ▲P-25, △Px25, ▲Nx25 are harsh, too, and unless the bishop is at 31 the silver cannot be drawn back to 22 (▲P*24 is possible) when keeping the
469:– when playing Static Rook Anaguma. For instance, Satō was achieving a winning percentage of above 70% (except for a 58.8% when playing White), and Habu a total (as Black and White) win rate exceeding 90%. (In comparison, the overall winning percentage when playing Black is slightly above 50%.)
488:, first of all don't let Anaguma to be formed or aim for a battle to occur before it gets formed. This includes attacking the rival's king as they're building Anaguma as if it were a sitting king, going back from ranging rook to static rook, or gathering power along the edge as if
1315:
was actually never reached. As a consequence of these particulars, this opening is almost never played against Fourth File Rook's Fujii system. In turn, against Third File Rook's Fujii system, since it has no effects on the quick attacks it has still considerable popularity.
1684:
1. P-76 2. P-34, 3. P-66 4. P-84, 5. R-68 6. S-62, 7. P-16 8. K-42, 9. S-38 10. K-32, 11. S-78 12. P-54, 13. S-67 14. G61-52, 15. P-15 16. S-53, 17. G69-58 18. P-85, 19. B-77 20. B-33, 21. P-46 22. K-22, 23. P-36 24. P-44, 25. N-37 26. G-43, 27. P-65 28. G-32, 29. S-47
425:
then dominating by way of the solidness of the Fujii System player's Mino castle. Since it typically involves the arrangement of pieces both in defense and offense across the player's whole camp rather than the move of a particular piece, it is called a
472:
For that reason, while taking measures against Left Mino and Static Rook
Anaguma, it became necessary to have a comprehensive, well-equipped way of attacking from the static rock traditional right silver quick attack and so on. In the Fujii system:
533:
against left Mino, in the process of which (in the situation S-2g, K-3i, G-4g, G4i) the rook returned to the right flank with the goal of storming on the Left Mino king's head (e.g., in his 1995 All Japan
Professional Shogi tournament game against
452:
strategies for Static Rook, which allowed as much or more solidness than the
Ranging Rook opponent, the winning percentage of Ranging Rook decreased dramatically. This trend became obvious when comparing the winning percentages of top players –
1287:
strategies. It is become a strategy that combines both a quick vertical attack before the Static Rook
Anaguma castle can be completed, relying on the bishop's diagonal as its key point, and counter-measures against static rook quick attacks.
917:
playing White against Fujii system won after being forced to build a High Mino following black's B-57, by then attacking the knight's head. From there on the usual formation became pushing black's pawn to 56, and after switching to a
1311:" tactic, posing a threat on the Static Rook Anaguma's king by way of the bishop's diagonal. For that reason, the Millenium castle that avoided the bishop's diagonal aimed at by the Fujii system's gained considerable influence.
412:
The Fujii system is a set of strategies for Fourth and Third File Rook openings developed by
Takeshi Fujii. In particular, the Fujii System attracted a good deal of attention as a countermeasure against
1304:. It is characterized by the fact that even though weaker in solidness compared to Anaguma, (white's) king being castled in 21 means not receiving direct attacks on the bishop's diagonal.
517:
Before the Fujii system became widely known, as players using static rook felt uncomfortable in quick attacks against ranging rook strategies, openings which castled the king solidly like
529:
As a ranging rook (Fourth File Rook) player himself, Fujii had been struggling to find ways to cope with Static Rook Anaguma and Left Mino, displaying when playing ranging rook a
1300:
Because the Fujii system made it difficult for the static rook player to build Anaguma, many counter-measures were developed. One of them, appearing around the year 2000, is the
2813:
1283:
What has turned currently into the prevailing variation in the Fujii system is a so-called new version that came to be as a result of the investigation against
444:
to a Fortress and so on, hence choosing advanced castles, particularly due to the fragility to mate races from the side. However, due to the development of
1307:
Up until then, the ranging rook would break down Anaguma by relying on the bishop's diagonal, as well as its subsequent development in 3rd File Rook's "
2123:
1846:
2100:
1757:
1735:
2079:
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This is an unusually completed opening, and Left Mino is now barely ever seen among professionals when playing against Fourth File Rook.
2818:
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2028:
538:). Although this occurred previous to the development of the Fujii system, the attack on the left Mino king's head is a common goal.
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1990:
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bishop's diagonal open, this turns into a development in which the static rook player has to be paying close attention always.
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2015:
1741:『将棋世界』の連載をまとめたもの。藤井システムについては2章を割いて解説している（第3講 後手藤井システムの話（57 - 94ページ）、第4講 先手藤井システムの話（95 - 118ページ））。
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Traditionally, when the Static Rook side went for a slow game strategy, they would use
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2005:
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1930:
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481:, don't allow the ideal formation to occur, aim for a battle for the King's head.
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Originally, the Fujii system developed as an investigation on how to counter
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2053:
1890:
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1547:
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As described below, the Fujii System includes countermeasures against
2777:
899:. Due to the peculiar formation of left Mino, and particularly of
366:
1824:
1781:
Fourth File Rook: Sente Static Rook Anaguma: Gote Fujii's System
903:, it was very difficult for Ranging Rook openings to invade it.
1828:
396:
who invented the strategies, which awarded him the prestigious
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30:
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2109:
2062:
2014:
1951:
1944:
1862:
1775:S6-5g Rapid Attack (against 4th-file Mino Defense)
526:players choosing ranging rook openings declined.
1724:』2006年3月号「勝又教授のこれならわかる! 最新戦法講義」藤井システムはどこに消えた? の巻
1752:. Translated by Kawasaki, Tomohide. Nekomado.
385:strategies. It was created as a way to attack
1840:
417:with Fujii himself playing a prominent role.
8:
400:in 1998. The system can also be applied for
500:Super Fourth File Rook strategy as well as
2296:
2175:
1948:
1868:
1847:
1833:
1825:
1818:Appendix: Basic procedure of Fujii system
1296:The Fujii System and the Millenium Castle
513:The decline in Ranging Rook Strategies
7:
2814:Static Rook vs Ranging Rook openings
1773:YouTube: HIDETCHI's Shogi Openings:
1804:Lectures on the Latest Strategies:
1793:. Episode 1. 銀河将棋チャンネル – via
2586:Left Bear-in-the-hole Central Rook
542:The Fujii System against Left Mino
14:
2400:Bear-in-the-hole Fourth File Rook
2443:Bear-in-the-hole Third File Rook
2410:Bishop Exchange Fourth File Rook
1623:
1546:
1388:
930:The Fujii System against Anaguma
381:strategies used against various
1813:Lecture 4: Black's Fujii System
1808:Lecture 3: White's Fujii System
2198:Straight Line Bear-in-the-hole
551:Fujii System against Left Mino
1:
2357:Bear-in-the-hole Central Rook
429:instead of a single opening.
2183:Static Rook Bear-in-the-hole
939:Fujii System against Anaguma
21:Fujii System vs Static Rook
2835:
2819:Fourth File Rook openings
2621:Bishop-Exchange Bishop*57
2377:Central Rook vs Side Pawn
2299:
2228:Central Rook vs Side Pawn
2203:King's Head Vanguard Pawn
2178:
2034:Primitive Climbing Silver
1871:
438:King's Head Vanguard Pawn
1779:Yet Another Shogi Site:
1881:Static Bishop Left Mino
2425:Yōryū Fourth File Rook
2342:Primitive Central Rook
2244:Left S-57 Rapid Attack
2193:Iijima Bishop Pullback
1926:Extreme Rushing Silver
1876:Right Fourth File Rook
1787:"藤井システムの極意: 対穴熊△3三角講義"
2809:Ranging Rook openings
2606:Wrong Diagonal Bishop
2372:Central Rook Fortress
2347:Cheerful Central Rook
2269:Super High Speed S-37
1996:Yonenaga Rapid Attack
1976:Central Rook Fortress
2274:Three-Pawn Sacrifice
2223:Center Vanguard Pawn
2172:Counter-Ranging Rook
1991:vs Right Fourth Rook
1966:Spearing the Sparrow
1730:『最新戦法の話』（浅川書房、2007年、
490:Spearing the Sparrow
434:Center Vanguard Pawn
2576:Opposing vs Central
1986:Akutsu Rapid Attack
1709:Static Rook Anaguma
1285:Static Rook Anaguma
531:Silver Crown castle
523:Static Rook Anaguma
486:Static Rook Anaguma
450:Static Rook Anaguma
415:Static Rook Anaguma
387:Static Rook Anaguma
2571:Opposing vs Fourth
2405:King's Head Silver
2309:Feint Ranging Rook
1945:Double Static Rook
1750:Joseki at a glance
1674:☗ pieces in hand:
1332:☖ pieces in hand:
1273:☗ pieces in hand:
943:☖ pieces in hand:
885:☗ pieces in hand:
555:☖ pieces in hand:
459:Toshiyuki Moriuchi
392:It is named after
389:castle positions.
355:☗ pieces in hand:
25:☖ pieces in hand:
2791:
2790:
2594:
2593:
2556:Opposing vs Third
2286:
2285:
2282:
2281:
2264:Spearing the Bird
2254:Saginomiya joseki
2167:
2166:
2149:Rapid Attack K-41
2124:Rapid Attack B*33
1936:Feint Static Rook
1759:978-4-9052-2501-0
1736:978-4-86137-016-8
1672:
1671:
1271:
1270:
901:Castle Tower Mino
883:
882:
502:Masataka Sugimoto
398:Kōzō Masuda Award
353:
352:
2826:
2742:Bear-in-the-hole
2495:New Demon Slayer
2304:Bishop Head Pawn
2297:
2188:Maruyama Vaccine
2176:
2134:Double Side Pawn
2072:Reclining Silver
1971:Morishita System
1949:
1906:Reclining Silver
1869:
1849:
1842:
1835:
1826:
1801:
1798:
1763:
1699:Fourth File Rook
1677:
1627:
1550:
1392:
1338:
1335:
1302:Millenium castle
1276:
949:
946:
888:
561:
558:
536:Hisashi Namekata
379:Fourth File Rook
358:
31:
28:
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2825:
2824:
2823:
2794:
2793:
2792:
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2751:
2723:
2635:
2590:
2566:Double Opposing
2542:
2504:
2470:Fourth-to-Third
2429:
2415:Leghorn Special
2381:
2328:
2278:
2232:
2163:
2105:
2091:Climbing Silver
2064:Bishop Exchange
2058:
2039:Tsukada Special
2029:Retreating Rook
2010:
1961:Double Fortress
1940:
1911:Climbing Silver
1901:First File Rook
1858:
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920:Third File Rook
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559:
556:
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510:
498:Kenji Kobayashi
410:
402:Third File Rook
375:fujii shisutemu
363:
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29:
26:
23:
12:
11:
5:
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2806:
2804:Shogi openings
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2101:Wrong Diagonal
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2086:Rushing Silver
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1856:Shogi Openings
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1768:External links
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1309:Isao Nakata XP
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494:
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482:
467:Akira Watanabe
463:Yasumitsu Satō
455:Yoshiharu Habu
409:
406:
377:) is a set of
354:
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2317:
2315:
2314:Twisting Rook
2312:
2310:
2307:
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2302:
2301:
2298:
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2275:
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2270:
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2262:
2260:
2259:Ponpon Knight
2257:
2255:
2252:
2250:
2249:Yamada joseki
2247:
2245:
2242:
2241:
2239:
2235:
2229:
2226:
2224:
2221:
2219:
2218:Takada System
2216:
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2209:
2206:
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2201:
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2077:
2076:Kimura joseki
2073:
2070:
2069:
2067:
2065:
2061:
2055:
2052:
2050:
2047:
2045:
2044:Twisting Rook
2042:
2040:
2037:
2035:
2032:
2030:
2027:
2025:
2024:Floating Rook
2022:
2021:
2019:
2017:
2013:
2007:
2004:
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1917:
1916:Climbing Gold
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1800:(in Japanese)
1796:
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1767:
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1755:
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1747:
1746:Kitao, Madoka
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584:
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569:
566:
563:
562:
552:
541:
539:
537:
532:
527:
524:
520:
512:
507:
505:
504:'s research.
503:
499:
496:It underlies
491:
487:
483:
480:
476:
475:
474:
470:
468:
464:
460:
456:
451:
447:
443:
440:to go from a
439:
435:
430:
428:
423:
418:
416:
407:
405:
403:
399:
395:
394:Takeshi Fujii
390:
388:
384:
380:
376:
372:
368:
348:
345:
342:
339:
336:
333:
330:
327:
324:
321:
320:
316:
313:
310:
307:
304:
301:
298:
295:
292:
289:
288:
284:
281:
278:
275:
272:
269:
266:
263:
260:
257:
256:
252:
249:
246:
243:
240:
237:
234:
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228:
225:
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220:
217:
214:
211:
208:
205:
202:
199:
196:
193:
192:
188:
185:
182:
179:
176:
173:
170:
167:
164:
161:
160:
156:
153:
150:
147:
144:
141:
138:
135:
132:
129:
128:
124:
121:
118:
115:
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100:
97:
96:
92:
89:
86:
83:
80:
77:
74:
71:
68:
65:
64:
60:
57:
54:
51:
48:
45:
42:
39:
36:
33:
32:
22:
2756:Other Theory
2616:Buoyant Rook
2561:Double Third
2490:Demon Slayer
2462:Quick Ishida
2395:Fujii System
2394:
2352:Silver Horns
2292:Ranging Rook
2237:Rapid Attack
2049:Rook on Pawn
2006:Crab Silvers
2001:Ninja Silver
1790:
1749:
1715:Bibliography
1704:Ranging Rook
1687:
1683:
1328:Fujii System
1327:
1313:
1306:
1299:
1290:
1282:
938:
925:
909:
905:
894:
550:
528:
516:
495:
471:
431:
426:
419:
411:
404:strategies.
391:
374:
371:Fujii System
370:
364:
20:
2773:Tsume shogi
2649:Three Pawns
2387:Fourth File
2362:Edge Bishop
2324:Dokkan Rook
2208:Subway Rook
2016:Double Wing
1981:Waki System
1896:Sleeve Rook
1864:Static Rook
1319:Development
911:Akira Shima
442:Boat castle
383:Static Rook
2798:Categories
2699:Rook–Lance
2631:Kamaitachi
2435:Third File
2096:Tempo Loss
1886:Right King
2213:Left King
2111:Side Pawn
897:Left Mino
519:Left Mino
479:Left Mino
446:Left Mino
422:Left Mino
2783:Notation
2768:Strategy
2747:Fortress
2654:10-Piece
2641:Handicap
2626:Pinwheel
2523:American
2510:Opposing
2500:Tomahawk
2480:1...R-32
2420:Tateishi
2367:Flatfish
2054:No Guard
1953:Fortress
1921:Ureshino
1891:Snowroof
1795:Niconico
1791:藤井猛の将棋講座
1748:(2011).
1693:See also
484:Against
477:Against
408:Overview
373:(藤井システム
2763:Tactics
2729:Castles
2694:2-Piece
2689:3-Piece
2684:4-Piece
2679:5-Piece
2674:6-Piece
2669:7-Piece
2664:8-Piece
2659:9-Piece
2611:Pac-Man
2334:Central
2080:G48 R29
915:NHK Cup
913:in the
508:History
2778:Hisshi
2714:Silver
2709:Bishop
2533:Direct
2518:Sakata
2485:1.R-78
2458:Ishida
2453:Manabe
2319:Tonari
1756:
1734:
1662:
1659:
1650:
1647:
1633:
1630:
1620:
1611:
1608:
1605:
1597:
1565:
1562:
1553:
1540:
1537:
1526:
1523:
1520:
1517:
1511:
1505:
1497:
1494:
1482:
1479:
1476:
1473:
1444:
1433:
1424:
1421:
1418:
1415:
1409:
1385:
1382:
1379:
1368:
1261:
1258:
1249:
1246:
1232:
1229:
1223:
1211:
1208:
1200:
1194:
1191:
1185:
1168:
1165:
1159:
1156:
1153:
1147:
1144:
1130:
1124:
1118:
1112:
1104:
1089:
1086:
1083:
1080:
1066:
1060:
1051:
1034:
1031:
1028:
1025:
1022:
1016:
1008:
996:
990:
979:
873:
864:
861:
858:
844:
841:
835:
826:
823:
820:
812:
809:
803:
771:
768:
765:
759:
756:
748:
745:
742:
736:
730:
724:
707:
701:
695:
692:
684:
672:
666:
663:
652:
649:
643:
637:
634:
628:
608:
605:
602:
591:
427:system
369:, the
343:
340:
331:
328:
314:
311:
305:
296:
293:
290:
282:
273:
250:
247:
238:
235:
229:
226:
215:
212:
209:
206:
200:
194:
186:
183:
171:
168:
165:
162:
133:
122:
116:
113:
110:
107:
104:
98:
78:
75:
72:
61:
2719:Lance
2599:Other
2466:3–4–3
2448:Kōyan
2159:Rx33+
367:shogi
2737:Mino
2704:Rook
2528:B-33
2474:R-77
2154:Aono
2144:N-33
2139:P*23
2129:B*45
2119:B-33
1931:Duck
1754:ISBN
1732:ISBN
1728:勝又清和
1722:将棋世界
465:and
448:and
2538:Ōno
521:or
436:or
365:In
2800::
2472:,
2468:,
2464:,
2078:,
1789:.
461:,
457:,
2476:)
2460:(
2082:)
2074:(
1848:e
1841:t
1834:v
1797:.
1762:.
1738:）
1720:『
1676:–
1668:9
1665:香
1656:金
1653:玉
1644:桂
1641:香
1636:8
1617:金
1614:飛
1600:7
1594:歩
1591:桂
1588:銀
1585:歩
1582:銀
1579:角
1576:歩
1573:歩
1568:6
1559:歩
1556:歩
1543:歩
1532:5
1529:歩
1514:歩
1508:歩
1500:4
1491:歩
1488:歩
1485:歩
1468:3
1465:歩
1462:歩
1459:角
1456:金
1453:銀
1450:歩
1447:歩
1441:歩
1436:2
1430:王
1427:金
1412:飛
1404:1
1401:香
1398:桂
1395:銀
1376:桂
1373:香
1365:1
1362:2
1359:3
1356:4
1353:5
1350:6
1347:7
1344:8
1341:9
1334:–
1275:–
1267:9
1264:香
1255:金
1252:王
1243:桂
1240:香
1235:8
1226:銀
1220:金
1217:飛
1214:銀
1203:7
1197:歩
1188:歩
1182:角
1179:歩
1176:歩
1171:6
1162:歩
1150:歩
1139:5
1136:歩
1133:桂
1127:歩
1121:歩
1115:歩
1107:4
1101:角
1098:歩
1095:銀
1092:歩
1075:3
1072:歩
1069:歩
1063:歩
1057:歩
1054:歩
1048:歩
1043:2
1040:香
1037:玉
1019:飛
1011:1
1005:桂
1002:銀
999:金
993:金
987:桂
984:香
976:1
973:2
970:3
967:4
964:5
961:6
958:7
955:8
952:9
945:–
887:–
879:9
876:香
870:王
867:金
855:桂
852:香
847:8
838:銀
832:金
829:飛
815:7
806:桂
800:歩
797:銀
794:角
791:歩
788:歩
783:6
780:歩
777:歩
774:歩
762:歩
751:5
739:歩
733:歩
727:歩
719:4
716:歩
713:歩
710:歩
704:歩
698:歩
687:3
681:玉
678:銀
675:歩
669:歩
660:歩
655:2
646:銀
640:金
631:飛
623:1
620:香
617:桂
614:角
611:金
599:桂
596:香
588:1
585:2
582:3
579:4
576:5
573:6
570:7
567:8
564:9
557:–
492:.
357:–
349:9
346:香
337:金
334:玉
325:桂
322:香
317:8
308:銀
302:金
299:飛
285:7
279:歩
276:桂
270:歩
267:銀
264:角
261:歩
258:歩
253:6
244:歩
241:歩
232:歩
221:5
218:歩
203:歩
197:歩
189:4
180:歩
177:歩
174:歩
157:3
154:歩
151:歩
148:角
145:金
142:銀
139:歩
136:歩
130:歩
125:2
119:王
101:飛
93:1
90:香
87:桂
84:銀
81:金
69:桂
66:香
58:1
55:2
52:3
49:4
46:5
43:6
40:7
37:8
34:9
27:–
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