Shogi

   Shogi, also called Japanese chess, is an old Asian board [1]game, very
   similar to [2]chess, and is greatly popular in Japan, even a bit more than
   [3]go, the second biggest Japanese board game. Shogi is yet more complex
   (and [4]bloated) than chess, has a bigger board, more pieces and more
   complex rules that besides others allow pieces to come back to play; for a
   chess player shogi is not that hard to get into as the basic rules are
   still very similar, and it may offer a new challenge and experience. Also
   similarly to chess, [5]go, [6]backgammon and similar board games, [7]LRS
   sees shogi as one of the best games ever as it is legally not owned by
   anyone (it is [8]public domain), is relatively [9]simple, cheap and
   doesn't even require a computer to be played. The [10]culture of shogi is
   also different from that of chess, there are many rituals connected to how
   the game is conducted, there are multiple champion titles, it is not
   common to offer draws etc.

   { Lol apparently (seen in a YT video) when in the opening one exchanges
   bishops, it is considered [11]rude to promote the bishop that takes, as it
   makes no difference because he will be immediately taken anyway. So ALWAYS
   DO THIS to piss off your opponent and increase your chance of winning :D
   ~drummyfish }

   Quick sum up for chess players: Games are longer. When you get back to
   chess from shogi your ELO will bump 100 points as it feels so much easier.
   Pawns are very different (simpler) from chess, they don't take sideways so
   forget all you know about pawn structure (prepare for bashing your head
   thinking a pawn guards something, then opponent takes it and you realize
   you can't retake :D just write gg and start a new game). The drop move
   will fuck up your brain initially, you have to start considering that
   opponent can just smash his general literally in front of your king and
   mate you right there { still fucking happens to me all the time lol :D
   ~drummyfish }. Exchanges and sacrifices also aren't that simple as any
   piece you sacrifice YOU GIVE TO THE OPPONENT, so you better not fuck up
   the final attack on the king or else the opponent just collects a bunch of
   your pieces and starts his own attack right in your base by dropping those
   pieces on your king right from the sky. You have to kill swiftly and
   precisely, it can turn over in an instant. There is no castling (but king
   safety is still important so you castle manually). Stalemate is a loss
   (not a draw) but it basically never happens, Japanese hate draws, draws
   are rare in shogi.

   The game's disadvantage and a barrier for entry, especially for westeners,
   is that the traditional design of the shogi pieces sucks big time, for
   they are just same-colored pieces of wood with Chinese characters written
   on them which are unintelligible to anyone non-Chinese and even to Chinese
   this is greatly visually unclear -- all pieces just look the same on first
   sight and the pieces of both player are distinguished just by their
   rotation, not color (color is only used in amateur sets to distinguish
   normal and promoted pieces). But of course you may use different, visually
   better pieces, which is also an option in many shogi programs -- a popular
   choice nowadays are so called international pieces that show both the
   Chinese character along with a simple, easily distinguishable piece
   symbol. There are also sets for children/beginners that have on them
   visually indicated how the piece moves.

Rules

   As with every game, rules may slightly differ here and there, but
   generally they are in principle similar to those of [12]chess, with some
   differences and with different pieces. The goal of the game is to deliver
   a checkmate to the opponent's king, i.e. make him unable to escape capture
   (same as in chess). The details are as follows.

   Shogi is played on a 9x9 rectangular board: the squares are not square in
   shape but slightly rectangular and they all have the same color. There are
   two players: sente (plays first) and gote (plays second); sente is also
   sometimes called black and gote white, like in chess (though unlike in
   chess black starts first here), but the pieces actually all have the same
   color (as they can be exchanged).

   The pieces are weird pentagonal arrow-like shapes that have on them
   written a Chinese character identifying the piece; on the other side there
   is a symbol representing the promoted version of the piece (i.e. if you
   promote, you turn the piece over). The arrow of the piece is turned
   against the enemy and this is how it is distinguished which player a piece
   belongs to.

   The table showing all the types of pieces follows. The movement rules are
   same as in chess, i.e. pieces cannot jump over other pieces except for the
   knight. (F, R, B, L mean forward, right, bottom, left.)

   piece         symbol letter ~value move rules         comment              
                                                         also takes forward   
   pawn          歩      P      1      1 F                (not complicated     
                                                         like in chess)       
                                                         can't go backwards   
   lance         香      L      4      F (any distance)   or sideways, just    
                                                         forward!             
                                      2 F., then 1 L or  similar to knight in 
   knight        桂      N      5      R                  chess, only one that 
                                                         jumps over pieces    
   silver                             1F1L, 1F, 1F1R,    like king but can't  
   general       銀      S      7      1B1L, 1B1R         go directly back,    
                                                         left or right        
                                                         similar to silver    
   gold general  金      G      8      1F1L, 1F, 1F1R,    but has 6 squares    
                                      1L, 1R, 1B         (s. only has 5),     
                                                         can't promote        
   bishop        角      B      11     diagonal (any      same as bishop in    
                                      distance)          chess                
   rook          飛      R      13     horiz./vert. (any  same as rook in      
                                      distance)          chess                
                                                         more valuable than   
   promoted pawn と      +P     10     like gold general  gold because when    
                                                         captured, enemy only 
                                                         gets pawn            
   promoted      杏      +L     9      like gold general  
   lance         
   promoted      圭      +N     9      like gold general  
   knight        
   promoted      全      +S     9      like gold general  
   silver        
                                      like both king and can now move to      
   p. bishop     馬      +B     15     bishop             other set of         
                                                         diagonals!           
   p. rook       龍      +R     17     like both king and 
   (dragon)                           rook               
   king          王      K      inf    any neighboring 8  same as king in      
                                      squares            chess, can't promote 

   At the beginning the board is set up like this:

   9 8 7 6 5 4 3 2 1
   _________________
  |L N S G K G S N L| a   gote      promotion
  |. R . . . . . B .| b  (white)      zone
  |P P P P P P P P P| c ----------------------
  |. . . . . . . . .| d
  |. . . . . . . . .| e
  |. . . . . . . . .| f
  |p p p p p p p p p| g ----------------------  
  |. b . . . . . r .| h   sente     promotion
  |l n s g k g s n l| i  (black)      zone
   """""""""""""""""

   So called furigoma is used to decide who starts (has the black pieces):
   one player throws 5 pawn pieces, if the number of unpromoted pawns ending
   up facing up is higher than the number of promoted ones, the player who
   tossed starts.

   Then the players take turns in making moves, one can either:

     * Move one own piece (according to its movement rules), possibly
       capturing (taking) one enemy piece by landing on it. If a piece is
       captured, it goes to the hand of that who captured it. After making
       this move the moved piece MAY (or may not) be promoted if: it can be
       promoted (as some pieces can't promote) AND its movement path went
       through the enemy promotion zone (his three starting rows, for example
       if the piece entered the zone or left it or moved within it).
       Promotion is mandatory if otherwise the piece would be unable to ever
       move again (e.g. a pawn entering the last row has to be always
       promoted). OR
     * Drop one of the held pieces (captured from the enemy's army) anywhere
       on an empty square as a new piece of the player who drops it. After a
       drop the piece CANNOT be immediately promoted (it has to move to be
       promoted). One only cannot drop a piece so that it wouldn't ever have
       any legal move (e.g. a pawn to the last row), also a pawn mustn't be
       dropped into a column where there already is an unpromoted friendly
       pawn (there may only ever be at most one unpromoted pawn of each
       player in any column) AND one mustn't deliver an immediate checkmate
       by dropping a pawn (but can deliver a check etc.).

   If a piece is immediately endangering the enemy king (so that it could
   capture it the next turn), a check happens. The player in check has to
   immediately avoid it, i.e. make a move that makes his king not be
   endangered by any enemy piece. If he cannot do that, he got checkmated and
   lost.

   TODO

Playing Tips

   TODO

     * Opening: moving the pawn right-up from your bishop seems to be the
       best first move, also most commonly played on top level.
     * ...

See Also

     * [13]chess
     * [14]go
     * [15]xiangqi
     * [16]backgammon

Links:
1. game.md
2. chess.md
3. go.md
4. bloat.md
5. go.md
6. backgammon.md
7. lrs.md
8. public_domain.md
9. kiss.md
10. culture.md
11. unsportmanship.md
12. chess.md
13. chess.md
14. go.md
15. xiangqi.md
16. backgammon.md