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'''Shogi''' (Japanese Chess),<br/>
a chess variant that evolved directly from [[Shatranj]], just like the western [[Chess|chess]]. It is played on 9x9 board. Compared to chess, Shogi pieces have limited mobility, but this is compensated by the fact that captured enemy pieces can be [[Piece Drop|dropped]] on the board as one's own. This leads to the wild, tactical game. Shogi has greater [[Branching Factor|branching factor]] than chess. Development of Shogi programs has taken slightly different route than in chess programming. The stress is on [[Pattern Recognition|pattern recognition]] and [[Selectivity|selective search]] techniques. However, with the advent of [[NNUE]] <ref>[[Yu Nasu]] ('''2018'''). ''ƎUИИ Efficiently Updatable Neural-Network based Evaluation Functions for Computer Shogi''. Ziosoft Computer Shogi Club, [https://github.com/ynasu87/nnue/blob/master/docs/nnue.pdf pdf] (Japanese with English abstract)</ref> along with adaptations of [[Stockfish]] to Shogi such as [[YaneuraOu]] <ref>[https://github.com/yaneurao/YaneuraOu GitHub - yaneurao/YaneuraOu: YaneuraOu is the World's Strongest Shogi engine(AI player), WCSC29 1st winner, educational and USI compliant engine]</ref>, and [[Kristallweizen-kai]] <ref>[https://github.com/Tama4649/Kristallweizen/ GitHub - Tama4649/Kristallweizen: 第29回世界コンピュータ将棋選手権 準優勝のKristallweizenです。]</ref>, and the consequent [[Stockfish NNUE]] hype <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74059 Stockfish NN release (NNUE)] by [[Henk Drost]], [[CCC]], May 31, 2020</ref>, both worlds seem to reunite again.
=Pieces & Moves=
Shogi pieces capture as they move. <span id="Promotion"></span>Promotion is possible with all pieces except King and Gold General - or already promoted pieces with changed move options.
When such a piece moves to, from or inside (but no [[Piece Drop|drops]]) the promotion zone, that is the three opponent's back-ranks, it has the option to promote.
Promotion is mandatory for the forward only pieces of Knight, Lance or Pawn with no more moves after moving to the 9th or 8th (Knight) rank.
Pieces indicate their promotion state by turning the piece over after the corresponding move, revealing the character of the promoted piece. A drop of a captured piece always appears with the unpromoted side up.
{| class="wikitable"
|-
! Notation
! Image
! colspan="2" | Name
! colspan="2" | Movement
|-
! K
| [[FILE:Shogi king.jpg|none|border|text-bottom|100px]]
| 玉/王
| [[King]]
| moves one square in any direction,<br/> orthogonal or diagonal
| style="font-family: monospace;" |
. . . . .<br/>
. 1 1 1 .<br/>
. 1 K 1 .<br/>
. 1 1 1 .<br/>
. . . . .<br/>
|-
! R
| [[FILE:Shogi rook.jpg|none|border|text-bottom|100px]]
| 飛
| [[Rook]]
| moves any number of squares<br/>in an orthogonal direction
| style="font-family: monospace;" |
. . 1 . .<br/>
. . 1 . .<br/>
1 1 R 1 1<br/>
. . 1 . .<br/>
. . 1 . .<br/>
|-
! +R
| [[FILE:Shogi rook p.jpg|none|border|text-bottom|100px]]
| 龍王
| Promoted Rook<br/>or Dragon King
| moves as a Rook<br/>or as a King
| style="font-family: monospace;" |
. . 1 . .<br/>
. 1 1 1 .<br/>
1 1+R 1 1<br/>
. 1 1 1 .<br/>
. . 1 . .<br/>
|-
! B
| [[FILE:Shogi bishop.jpg|none|border|text-bottom|100px]]
| 角
| [[Bishop]]
| moves any number of squares<br/>in a diagonal direction
| style="font-family: monospace;" |
1 . . . 1<br/>
. 1 . 1 .<br/>
. . B . .<br/>
. 1 . 1 .<br/>
1 . . . 1<br/>
|-
! +B
| [[FILE:Shogi bishop p.jpg|none|border|text-bottom|100px]]
| 龍馬
| Promoted Bishop<br/>or Horse
| moves as a Bishop<br/>or as a King
| style="font-family: monospace;" |
1 . . . 1<br/>
. 1 1 1 .<br/>
. 1+B 1 .<br/>
. 1 1 1 .<br/>
1 . . . 1<br/>
|-
! G
| [[FILE:Shogi gold.jpg|none|border|text-bottom|100px]]
| 金
| Gold General
| moves one square orthogonally,<br/>or one square diagonally forward
| style="font-family: monospace;" |
. . . . .<br/>
. 1 1 1 .<br/>
. 1 G 1 .<br/>
. . 1 . .<br/>
. . . . .<br/>
|-
! S
| [[FILE:Shogi silver.jpg|none|border|text-bottom|100px]]
| 銀
| Silver General
| moves one square diagonally,<br/>or one square straight forward
| style="font-family: monospace;" |
. . . . .<br/>
. 1 1 1 .<br/>
. . S . .<br/>
. 1 . 1 .<br/>
. . . . .<br/>
|-
! +S
| [[FILE:Shogi silver p.jpg|none|border|text-bottom|100px]]
| 成銀
| Promoted Silver
| moves like a Gold General
| style="font-family: monospace;" |
. . . . .<br/>
. 1 1 1 .<br/>
. 1+S 1 .<br/>
. . 1 . .<br/>
. . . . .<br/>
|-
! N
| [[FILE:Shogi knight.jpg|none|border|text-bottom|100px]]
| 桂
| [[Knight]]
| jumps one square straight forward<br/>plus one square diagonally forward
| style="font-family: monospace;" |
. 1 . 1 .<br/>
. . . . .<br/>
. . N . .<br/>
. . . . .<br/>
. . . . .<br/>
|-
! +N
| [[FILE:Shogi knight p.jpg|none|border|text-bottom|100px]]
| 成桂
| Promoted Knight
| moves like a Gold General
| style="font-family: monospace;" |
. . . . .<br/>
. 1 1 1 .<br/>
. 1+N 1 .<br/>
. . 1 . .<br/>
. . . . .<br/>
|-
! L
| [[FILE:Shogi lance.jpg|none|border|text-bottom|100px]]
| 香
| Lance
| moves any number of squares<br/>in straight forward direction
| style="font-family: monospace;" |
. . 1 . .<br/>
. . 1 . .<br/>
. . L . .<br/>
. . . . .<br/>
. . . . .<br/>
|-
! +L
| [[FILE:Shogi lance p.jpg|none|border|text-bottom|100px]]
| 成香
| Promoted Lance
| moves like a Gold General
| style="font-family: monospace;" |
. . . . .<br/>
. 1 1 1 .<br/>
. 1+L 1 .<br/>
. . 1 . .<br/>
. . . . .<br/>
|-
! P
| [[FILE:Shogi pawn.jpg|none|border|text-bottom|100px]]
| 歩
| [[Pawn]]
| moves and captures one square<br/>straight forward
| style="font-family: monospace;" |
. . . . .<br/>
. . 1 . .<br/>
. . P . .<br/>
. . . . .<br/>
. . . . .<br/>
|-
! +P
| [[FILE:Shogi pawn p.jpg|none|border|text-bottom|100px]]
| と金
| Promoted Pawn
| moves like a Gold General
| style="font-family: monospace;" |
. . . . .<br/>
. 1 1 1 .<br/>
. 1+P 1 .<br/>
. . 1 . .<br/>
. . . . .<br/>
|}
<span id="Engines"></span>
* [[20th Computer Olympiad#Shogi|20th Computer Olympiad, Leiden 2017]]
[[FILE:Olympiad2005Shogi.JPG|none|border|text-bottom|640px|link=http://www.jaist.ac.jp/rccg/menu/topic/image007.jpg]]
[[10th Computer Olympiad#Shogi|10th Computer Olympiad, Taipei 2005]], [[Tacos]] by [[Tsuyoshi Hashimoto]] won vs. [[Spear]] by [[Reijer Grimbergen]] <br/>[[Hiroyuki Iida]] (Tacos), [[Hitoshi Matsubara]], and [[Shogo Takeuchi]] posing for the Gold medal winner <ref>clipped from [http://www.jaist.ac.jp/rccg/menu/topic/image007.jpg image007] from [http://www.jaist.ac.jp/rccg/menu/topic.htm Research Center for Computers and Games - Tacos Won Shogi Tournament at the 10th Computer Olympiad], September 18, 2005</ref>
[[FILE:Shogi2006.jpg|none|border|text-bottom|640px|link=http://icga.leidenuniv.nl/icga/news/Olympiad/Olympiad2006/fotos/target100.html]]
Shogi Winners at the [[11th Computer Olympiad#Shogi|11th Computer Olympiad, Turin 2006]]: [[Jun Nagashima]] on behalf of [[Bonanza]] (Silver), <br/>[[Hiroshi Yamashita]] (Gold with [[YSS]]), and [[Hiroyuki Iida]] (Bronze for [[Tacos]]), [[Jaap van den Herik]] congrats <ref>[http://icga.leidenuniv.nl/icga/news/Olympiad/Olympiad2006/fotos/ ICGA Olympiad 2006 Photos]</ref>
