This page is written by the game's inventor, Adam DeWitt. This game is a favorite of its inventor.

# Suzumu Shogi

When I first came across Tenjiku Shogi via Wikipedia back in 2017, I decided to use some of the piece names when I first came up with Shosu Shogi. When I came across H. G. Muller's Interactive Diagrams page, I began messing around with it and creating diagrams of some of my own games. Eventually, I came across images of some of his Mnemonic pieces (I had been looking for images of just the pieces without them being a board for a while at that point) thanks to his CVP page on Chu Shogi. Shortly after that, I started using those pieces to create a makeshift interactive diagram for my own version of Tenjiku Shogi. After nearly a year of experimenting with piece moves, I settled on a set of moves that I deemed suitable at the time. I decided to name the game Suzumu Shogi (進将棋 suzumu shōgi, literally "advance shogi," but meant in the sense of "hexadecimal shogi") after looking up Japanese translations of the word hexadecimal. Over time, however, I considered the movesets for the Fire Demon and range-jumping generals to be too weak, and worked on making them more interesting. I found suitable movesets for the jumping generals, but I eventually considered the Fire Demon to still be too weak. Eventually I settled on the current Fire Demon move, but the new starting position didn't solve all of the problems I was facing due to the new ranged-jumping move, so I added the Violent Dragon and Violent Horse from Chushin Shogi. It wouldn't be until December 18, 2021 that the rules would be set in stone for good.

## Setup

Suzumu Shogi uses the same pieces as Tenjiku Shogi, plus the Violent Dragons and Violent Horses, and a similar initial position. An interactive diagram has been provided (The Javascript source code was written by H. G. Muller) to make it easier to understand how each piece moves. The Mnemonic piece directory uses H. G. Muller's Mnemonic pieces. The Shogi pieces used in the diagram and the table in the Pieces section are my own pieces, made using a free online pixel art drawing tool called Pixilart.

 files=16 ranks=16 holdingsType=1 promoOffset=37 promoZone=5 maxPromote=32 promoChoice=+ royal=47 royal=70 graphicsDir=../membergraphics/MSmitsugumi-shogi/ whitePrefix=w blackPrefix=b lightShade=#FFFF80 darkShade=#FFFF80 graphicsType=png squareSize=41 symmetry=rotate pawn:P:fW:p:a5-p5 dog:D:bFfW:d:e6,l6 knight:N:N:n:b1,o1 iron general:I:fFbW:i:d1,m1 copper general:C:fFvW:c:e1,l1 silver general:S:FfW:s:f1,k1 blind tiger:BT:FsbW:bt:f2,k2 ferocious leopard:FL:FvW:fl:c1,n1 gold general:G:WfF:g:g1,j1 drunk elephant:DE:FsfW:de:i1 reverse chariot:RV:vR:rv:a2,p2 lance:L:fRbW2:l:a1,p1 kirin:KY:FD:ky:e2 phoenix:PH:WA:ph:l2 side mover:SM:WsR:sm:a4,p4 vertical mover:VM:WvR:vm:b4,o4 bishop:B:B:b:c3,n3 side soldier:SS:WsRfW2:ss:a3,p3 vertical soldier:VS:WfRsW2:vs:b3,o3 rook:R:R:r:c4,n4 dragon horse:DH:BW:dh:d3,m3 dragon king:DK:RF:dk:e3,l3 chariot soldier:CS:BvRsW2:cs:b2,d2,m2,o2 horned falcon:HF:BbsRfWfDfcavWfmabW:hf:d4,m4 soaring eagle:SE:RbBfFfAfcavFfmabF:se:e4,l4 lion:LN:KNADcaKmcabK:ln:g2 queen:Q:Q:q:j2 bishop general:BG:(paf)2cBmcB:bg:f4,k4 rook general:RG:(paf)2cRmcR:rg:g4,j4 violent horse:VH:R3(paf)2cBmcB:vh:h4,i4 violent dragon:VD:B3(paf)2cRmcR:vd:c2,n2 water buffalo:WB:BsRvW2:wb:f3,k3 free eagle:FE:QADcaFmcabF:fe:i3 lion hawk:LH:BWNADcaKmcabK:lh:h3 vice general:VG:(paf)2cBmcB(a)2KmabK:vg:i2 great general:GG:(paf)2cQmcQ:gg:h2 fire demon:FD:QympacabQ(a)2KmcabK(a)2mpacabK:fd:g3,j3 tokin:+P:WfF:p2: multi general:+D:bBfR:d2: side soldier:+N:WsRfW2:n2: vertical soldier:+I:WfRsW2:i2: side mover:+C:WsR:c2: vertical mover:+S:WvR:s2: flying stag:+BT:KvR:bt2: bishop:+FL:B:fl2: rook:+G:R:g2: crown prince:+DE:K:de2: whale:+RV:bBvR:rv2: white horse:+L:fBvR:l2: lion:+KY:KNADcaKmcabK:ky2: queen:+PH:Q:ph2: free boar:+SM:BsR:sm2: flying ox:+VM:BvR:vm2: dragon horse:+B:BW:b2: water buffalo:+SS:BsRvW2:ss2: chariot soldier:+VS:BvRsW2:vs2: dragon king:+R:RF:r2: horned falcon:+DH:BbsRfWfDfcavWfmabW:dh2: soaring eagle:+DK:RbBfFfAfcavFfmabF:dk2: heavenly tetrarch:+CS:jQcabK:cs2: bishop general:+HF:(paf)2cBmcB:hf2: rook general:+SE:(paf)2cRmcR:se2: lion hawk:+LN:BWNADcaKmcabK:ln2: free eagle:+Q:QADcaFmcabF:q2: vice general:+BG:(paf)2cBmcB(a)2KmabK:bg2: great general:+RG:(paf)2cQmcQ:rg2: horse master:+VH:(paf)2cBmcBKaKmabK:vh2: dragon master:+VD:(paf)2cRmcRKaKmabK:vd2: fire demon:+WB:QympacabQ(a)2KmcabK(a)2mpacabK:wb2: king:K:K:k:h1

Only the location of the pieces of one side are mentioned below, in normal (Chess-like) coordinates. The setup for the other side can be obtained by rotating the board 180 degrees. XBetza notation is included for easier reference.

### First rank

• a1, p1 Lance (fRbW2)
• b1, o1 Knight (N)
• c1, n1 Ferocious Leopard (FvW)
• d1, m1 Iron General (fFbW)
• e1, l1 Copper General (fFvW)
• f1, k1 Silver General (FfW)
• g1, j1 Gold General (WfF)
• h1 King (K)
• i1 Drunk Elephant (FfsW)

### Second rank

• a2, p2 Reverse Chariot (vR)
• b2, d2, m2, o2 Chariot Soldier (BvRsW2)
• c2, n2 Violent Dragon (B3(paf)2cRmcR)
• e2 Kirin (FD)
• e2, l2 Blind Tiger (FbsW)
• h2 Great General ((paf)2cQmcQ)
• i2 Vice General ((paf)2cBmcB(a)2KmabK)
• j2 Queen (Q)
• l2 Phoenix (WA)

### Third rank

• a3, p3 Side Soldier (WsRfW2)
• b3, o3 Vertical Soldier (WfRsW2)
• c3, n3 Bishop (B)
• d3, m3 Dragon Horse (BW)
• e3, l3 Dragon King (RF)
• f3, k3 Water Buffalo (BsRvW2)
• g3, j3 Fire Demon (QympacabQ(a)2KmcabK(a)2mpacabK)

### Fourth rank

• a4, p4 Side Mover (WsR)
• b4, o4 Vertical Mover (WvR)
• c4, n4 Rook (R)
• d4, m4 Horned Falcon (BbsRfWfDfcavWfmabW)
• e4, l4 Soaring Eagle (RbBfFfAfcavFfmabF)
• f4, k4 Bishop General ((paf)2cBmcB)
• g4, j4 Rook General ((paf)2cRmcR)
• h4, i4 Violent Horse (R3(paf)2cBmcB)

### Fifth and sixth rank

• a5-p5 Pawns (fW)
• e6, l6 Dog (bFfW)

## Pieces

The move of pieces from the initial setup is already given in Betza notation above, and should also be clear from the mnemonic piece glyphs in the image above. The Betza notation move of the piece types that can only be obtained through promotion is given below.

• Prince (K)
• Heavenly Tetrarch (jQcabK)
• Dragon Master ((paf)2cRmcRKaKmabK)
• Horse Master ((paf)2cBmcBKaKmabK)
• Flying Ox (BvR)
• Free Boar (BsR)
• White Horse (fBvR)
• Whale (bBvR)
• Flying Stag (KvR)
• Multi General (bBfR)

The pieces in the table are the same pieces used in the interactive diagram above.

## Rules

### Deciding who moves first

furigoma (振り駒 piece toss) is used to decide who moves first. One of the players tosses five pawns. If the number of tokins (promoted pawns, と) facing up is higher than unpromoted Pawns (歩), then the player who tossed the pawns plays Gote (後手 White) (that is, getting the second move).

The players may also decide who goes first through a game of chance or a mutual agreement.

Sente (先手 Black) moves first, then players alternate making a move. Making a move is required – skipping a move is illegal, even when having to move is detrimental. Play continues until a player's last remaining royal piece is captured, a player resigns, or a draw is declared.

### Skipping a turn

The fire demon, vice general, dragon master, horse master, lion hawk, free eagle, lion, soaring eagle, and horned falcon have the ability to skip a turn if at least one adjacent square is empty. (The free eagle can only do this on the squares diagonally adjacent to it, the horned falcon can only do this on the square directly in front of it, and the soaring eagle can only do this on either of the two squares diagonally in front of it.) However, it is illegal for a player to skip a turn if the immediately preceding turn was skipped by the opponent.

If a piece promotes while staying in place without capturing anything, this does not count as skipping a turn.

### Promotion

A player's promotion zone consists of the furthest five ranks of the board, at the original line of the opponent's pawns and beyond. The zone is typically delineated on the game board by two inscribed dots. When a piece is moved, if part of the piece's path lies within the promotion zone (that is, if the piece moves into, out of, or wholly within the zone, but not if it passes in and out of the zone without starting or ending its move within it), then the player has the option to promote the piece at the end of the turn. Promotion is indicated by turning the piece over after it moves, revealing the character of the promoted piece. The pieces promote as follows:

 Water Buffalo -> Fire Demon Side Soldier -> Water Buffalo Iron General -> Vertical Soldier Lion -> Lion Hawk Kirin -> Lion Queen -> Free Eagle Phoenix -> Queen Violent Dragon -> Dragon Master Rook General -> Great General Soaring Eagle -> Rook General Dragon King -> Soaring Eagle Rook -> Dragon King Gold General -> Rook Pawn -> Tokin Dog -> Multi-General Reverse Chariot -> Whale Violent Horse -> Horse Master Bishop General -> Vice General Horned Falcon -> Bishop General Dragon Horse -> Horned Falcon Bishop -> Dragon Horse Ferocious Leopard -> Bishop Chariot Soldier -> Heavenly Tertarch Vertical Soldier -> Chariot Soldier Knight -> Side Soldier Vertical Mover -> Flying Ox Silver General -> Vertical Mover Lance -> White Horse Blind Tiger -> Flying Stag Drunk Elephant -> Crown Prince Side Mover -> Free Boar Copper General -> Side Mover

Because promotion doesn't happen until the end of the turn, multi-capturing pieces that promote have a chance to make a double capture before doing so.

The King, Fire Demon, Great General, Vice General, Lion Hawk, and Free Eagle do not promote, nor can already promoted pieces promote further.

### Check

When a player’s last remaining royal piece (a King or Prince) is under immediate attack by at least one enemy piece, it is in check. A player who's last remaining royal is in check is not required to remove the the check, but this is almost always the best option, since a player who has no more royal pieces on the board loses the game. If a player has both a King and a Prince in play, that player may sacrifice one of them. A check can be removed in one of three ways, depending on the situation:

• Blocking the check by placing a piece in between the royal piece and the attacking piece
• Capturing the attacking piece
• Moving to a safe square

The King and Prince need not move out of check, and can even move into check, though this is almost always a blunder. If it is not possible for a player who only has a King or a Prince to get out of check, that piece is checkmated and the game is effectively over.

### Illegal Move

A player who makes an illegal move loses immediately. Illegal moves include:

• Making more than one move per turn
• Skipping a turn when the immediately preceding turn was skipped by the opponent
• Moving a piece contrary to how its movements are defined

This rule may be relaxed in casual games, where a player can take back the illegal move and make a legal move.

### End of the game

A player who captures the opponent's last remaining royal piece (a King or Prince) wins the game.

Checkmate and Stalemate

If a player’s last remaining royal piece is placed in check and there is no legal move that will resolve the check, the checking move is also checkmate, and effectively wins the game.

If a player’s last remaining royal piece is not in check but that player has no legal moves, the game is a stalemate. Stalemate, like checkmate, leads to a win for the stalemating player.

Resignation

At any point in the game, a player may resign and their opponent wins the game.

### Draw

There are only two ways for a draw to occur - 千日手 sennichite (repetition) and impasse.

Repetition Draw 千日手 sennichite - If the same game position occurs four times with the same player to move, then the game ends in a draw, as long as the positions are not due to turn-skipping violations.

Impasse – If neither player can hope to force checkmate or stalemate on the other player’s last remaining royal piece or gain any further material through a series of legal moves, the players may agree to a draw.

## Notes

### Differences from Tenjiku Shogi

Suzumu Shogi has eight main differences from its predecessor, Tenjiku Shogi:

1. The rule set is complete, with no lacunae whatsoever.
2. The initial setup is different.
3. Suzumu Shogi has the Violent Dragon and Violent Horse in addition to the pieces from Tenjiku Shogi.
4. A few pieces have different moves from their Tenjiku Shogi counterparts
1. Fire Demon's burning ability is much weaker (but still quite terrifying).
• Only has an active burning ability (activates after stopping at destination), and can only burn one adjacent enemy piece per move.
• Burning ability is optional.
• Can also capture a piece on an adjacent square without moving.
2. Fire Demon can slide in all 8 directions, rather than just along diagonals and ranks (or files) to compensate for the reduced burning ability.
3. Jumping Generals can only jump up to two pieces when taking, but they have no restrictions on what they can jump over or capture.
4. Lance moves like the Liberated Horse from Wa Shogi.
5. Knight moves like it does in Chess.
6. Iron General moves like the Tile General found in larger Shogi variants (i.e. Maka Dai Dai Shogi).
5. Promotion rule is the same as in standard Shogi, but you cannot promote by skipping a turn.
6. Cannot skip a turn when the immediately preceding turn was skipped by the opponent.
7. Fourfold repetition is a draw.
8. Impasse rule allows draws if neither player can hope to make any progress.

### Computer Play

This 'user submitted' page is a collaboration between the posting user and the Chess Variant Pages. Registered contributors to the Chess Variant Pages have the ability to post their own works, subject to review and editing by the Chess Variant Pages Editorial Staff.