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Shogi (Sente) vs Chess (Black, Gote)

#1

www.chess.com/bundles/web/images/image-default.445cb543.svg

Shogi Pieces Promotion (Only Available: Pawn, Lance, Knight, Silver, Bishop, Rook) : 7th~9th Ranks (Leave There Can Promote This Piece), Pawn, Lance, Knight, Silver >>> Gold; Bishop >>> Horse (龍馬), Rook >>> Dragon (龍王)
Chess Pawns Promotion: Only 9th Rank, Pawn >>> Queen/Knight If Been Captured Just Be Crazyhouse.
Nifu: Only Shogi Pawns Has This Restriction.
Perpetual check: Draw
Drops: Yes
Stalemate: Win (Jammed)
Impasse: No

#2

If you can't see the image:
Chess King: 51
Chess Queen: 41
Chess Rooks: 11, 81
Chess Bishops: 31, 61
Chess Knights: 21, 71
Chess Pawns: 12, 22, 32, 42, 52, 62, 72, 82
VS A Shogi Normal Army.

#3

How can you expect that anyone even understands what you're planning to do here?

#5

How would I know? You did a poor job in explaining what you even mean to do.

#6

@goshujin He's describing some kind of variant game with shogi pieces on one side, and chess on the other.

I tried playing a game like this before and I remember it being awfully unbalanced

#7

Oh ... I suppose the chess army won by a landslide, then. The queen alone is like a weapon of mass destruction by Shogi standards. Nowadays I even tend to think that her presence alone is a design flaw in Chess, as imo she concentrates way too much power in her person.

#8

Yeah something like that. Depending on the rules you choose, either the shogi drop rule is way too powerful and swarms the chess side, or the queen and rooks just gobble up the slow-moving shogi army. My roommate and I 10 years ago played like a dozen games and both came to the conclusion that it was super broken. Maybe a more fair ruleset could be found, but we didn't bother to look.

#10

Curious and wonderful.

AI, when asked to come up with a balnced set of rules for the aforesaid, came up wirh this response.

This is a fascinating "clash of cultures" game design problem. As the forum users noted, the primary issue is mobility vs. persistence. Chess pieces are long-range "snipers" (especially the Queen), while Shogi pieces are "zombies" that never leave the board due to the drop rule.
To balance a Shogi (Sente) vs. Chess (Gote) game, we need to nerf the Chess Queen’s raw power while giving the Shogi army a way to survive the opening blitz.
The "Balanced Clash" Rulebook
1. The Board and Setup
* Board: 9x9 Shogi board.
* Shogi (Sente): Standard Shogi setup on Ranks 7, 8, and 9.
* Chess (Gote): Standard Chess setup on Ranks 1 and 2, but with no Queen. Instead, Gote starts with two Kings (The "Twin Princes" rule) or a Gold General in the Queen's spot to bridge the power gap.
2. Piece Movement & Promotion
* Shogi Pieces: Move and promote normally (7th–9th ranks).
* Chess Pieces: Move normally.
* Promotion: Chess Pawns promote only on the 9th rank (Shogi's edge).
* The Queen Cap: A Chess Pawn can only promote to a Queen if the original Queen (if any) is off the board. You cannot have two Chess Queens simultaneously.
* Captured Pieces: * Drops: Both sides use Shogi drop rules. If Chess captures a Shogi piece, they can drop it as a Shogi piece. If Shogi captures a Chess piece, they drop it as a Shogi equivalent (see Conversion Table).
3. The "Power Level" Adjustments
To prevent the Chess Queen from ending the game in 5 moves, apply these constraints:
* Range Limit: The Chess Queen and Rooks cannot move more than 4 squares in a single turn. This preserves their "sliding" nature but prevents "cross-map snipes" that Shogi pieces can't defend against.
* The "Nifu" Equivalent: Chess cannot drop a captured Shogi Pawn on a file where they already have a Chess Pawn.
4. Piece Conversion Table (For Drops)
When Shogi captures a Chess piece, it enters their hand as follows:
| Chess Piece Captured | Shogi Piece in Hand |
| :--- | :--- |
| Pawn | Pawn |
| Knight | Knight |
| Bishop | Bishop |
| Rook | Rook |
| Queen | Dragon King (Promoted Rook) |
Why these rules work
* Slowing down Gote: By limiting the range of the Queen/Rooks and removing the starting Queen, Shogi’s slow-moving Silver and Gold generals actually have time to build a "Yagura" castle for protection.
* The Drop Economy: Since Chess can now drop pieces too, the game doesn't end just because the Shogi player traded their Rook for a Bishop.
* Stalemate vs. Impasse: We follow Shogi logic—Stalemate is a win for the player who delivered it (since you "jammed" the opponent), and Perpetual Check is a draw.