Editing Shogi (section)

=====Entering King=====
{{shogi diagram
| floatright
| '''Black's king in an Entering King state'''
| 角 銀 桂 香
| kg | ng | gg |    |    |    |    | ks |
| lg | sg | gg |    | ts | ts | ts | hs |
|    | pg | pg | pg | ts |    | pg | pg | pg 
| pg |    |    |    | pg | pg |    |    |
|    | ps | ps |    |    |    |    | rg | rg 
| ps |    | gs | ss | ps |    | ps |    |
|    |    | ns |    |    |    |    |    |
|    |    |    |    |    |    |    |    |
| ls |    |    |    |    |    |    |    |
| 金 銀 桂 香
| 
}}

As a practical matter, when an opponent's king has entered a player's own territory especially with supporting defending pieces, the opponent's king is often very difficult to mate given the forward attacking nature of most shogi pieces. This state is referred to as '''entering king''' (入玉 ''nyū gyoku''). If both players' kings are in entering king states, the game becomes more likely to result in an impasse.

In the adjacent diagram example, although White's king is in a strong [[Bear-in-the-hole castle]], Black's king has entered White's territory making it very difficult to mate. Therefore, this position favors Black.<ref>滝瀬, 竜司 [Takise, Ryuji] and 田中, 哲朗 [Tanaka, Tetsuro]. 2012. 入玉指向の将棋プログラムの作成 [Development of entering-king oriented shogi programs]. ''Information Processing Society of Japan, 53'' (11), 2544–2551.</ref>
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{{shogi diagram 
|  
| '''Kimura vs Toyoshima 2019'''
| 桂<sub>1</sub> 歩<sub>4</sub>
| hs |    |    | hs | pg |    |    |    |
|    |    |    |    |    | sg | gg |    |
| pg |    |    | ns | ps | ng | sg |    | pg 
|    |    |    |    | ds | pg |    | pg |
|    |    |    |    |    |    | pg |    |    
| ps |    | ps | ps |    |    | gg | dah|
|    | ps | ss |    |    |    |    | kgl|
|    | ks | gs | gs |    | ps |    | psg|
| ls | ns |    |    |    |    | rg | plg|
| 香<sub>2</sub> 歩<sub>2</sub>
| After 150 moves.
}}
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{{shogi diagram 
|  
| '''Kimura vs Toyoshima 2019'''
| 金<sub>1</sub> 銀<sub>1</sub> 桂<sub>2</sub> 歩<sub>3</sub>
|    | hs |    |    |    |    |    |    |
|    | ks | hs |    |    |    |    |    |
|    | ssl| ts |    |    |    | ds |    |    
| ps | uah|    | ps |    | ps |    |    | gs 
|    | dg |    |    | gg |    |    | lg |    
|    |    |    |    |    |    |    |    |
|    |    |    |    |    | tg | tg |    |
|    |    |    |    | gg |    |    | psg| lg 
|    |    |    |    |    |    |    | plg| kg 
| 銀<sub>1</sub> 桂<sub>2</sub> 香<sub>1</sub> 歩<sub>9</sub>
| After 285 moves.
}}
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An example of Entering King occurred in the fourth game of the 60th [[Ōi (shogi)|Ōi]] title match between [[Masayuki Toyoshima]] and [[Kazuki Kimura]] held on August 20{{ndash}}21, 2019. After being unsuccessful in attacking Kimura and also in defending his own king within his camp, Toyoshima (playing as White) moved his king away from Kimura's attacking pieces by fleeing up the second file, ultimately entering his king into Kimura's camp by move 150. Although Toyoshima had achieved Entering King, he still had only 23 points{{mdash}}one point shy of the required 24 points for an [[#Impasse|Impasse]] draw{{mdash}}while Kimura (Black) had 31 points. Toyoshima then spent the next 134 moves trying to bring his point total, which fluctuated between 17 and 23, up to the necessary 24. By the 231st move, the game had reached a Double Entering Kings state, and by move 285 Kimura had successfully kept Toyoshima's point total at bay. Here, Toyoshima with 20 points (and Kimura at 34 points) resigned.<ref>{{cite web |title=King's War - 60th Oi title match, seven-game series, game 4 |website=live.shogi.or.jp |url=http://live.shogi.or.jp/oui/kifu/60/oui201908200101.kif }} 2019/08/20 09:00 to 2019/08/21 21:12</ref><ref>{{cite news|last=Mizuta|first=Yukihiro|url=https://www.kobe-np.co.jp/news/sougou/201908/0012628486.shtml|script-title=ja:将棋王位戦第4局 木村が勝ち2勝2敗に|title=Shōgi Ōisen Daiyonkyoku Kimura ga Kachi Nishō Nihai|language=ja|trans-title=Game 4 of the Ōi title match: Kimura wins to even match at two games apiece|date=August 21, 2019|newspaper=[[Kobe Shimbun]]|access-date=August 22, 2019}}</ref> Incidentally, this game broke the record of longest game in a title match.<ref>{{Cite web|url=https://news.yahoo.co.jp/byline/matsumotohirofumi/20190821-00139300/|title=王位戦七番勝負第４局、タイトル戦最長手数の285手！ 木村一基九段が豊島将之王位を降す（松本博文） - Yahoo!ニュース|website=Yahoo!ニュース 個人|access-date=2019-08-22|archive-date=2023-04-10|archive-url=https://web.archive.org/web/20230410211417/https://news.yahoo.co.jp/byline/matsumotohirofumi/20190821-00139300|url-status=dead}}</ref>
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