Eat Chess: Royal Merge
Solo & Versus Board Puzzle
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Merge chess pieces on a tight 4x4 board. Play Solo or local Versus, then personalize the look with optional cosmetic extras.
Royal Merge is a chess merge puzzle played on a compact 4×4 board. Pick one piece, move it by simplified chess rules, and merge it with a matching piece of the same type and level. Pawns become Knights, then Bishops, Rooks, Queens, Kings, and higher-level Pawns.
The board fills fast. A quiet setup move can matter as much as the merge it opens.
HOW IT PLAYS
Select a piece. Legal squares light up. Move to an empty square, merge with a match, or use Castle Swap when a same-level King and Rook line up with a clear path.
Every legal move into empty space and every Castle Swap adds a new Pawn. Pawn Spawn adds a Pawn on every second merge. Royal Reserve drops a Level 1 Pawn, Knight, Bishop, or Rook after every five successful actions. Every arrival can help, and every arrival takes space.
Back-to-back merges build a combo multiplier. A move into empty space or a Castle Swap breaks the chain, so timing matters.
SOLO
Play without a clock, add a Player Clock, set an Increment, or cap the run with a Turn Limit. Official Solo runs can count toward local records, Game Center leaderboards, and achievements.
Solo also includes Hint. It points out possible moves, costs part of your current score, and never plays the move for you.
VERSUS
Two players share one board on the same device. Player 1 starts. After each legal action, the turn passes and the board switches to the active player's chosen chess set. Pieces are shared, not owned. The active player scores only when they make a merge.
Versus supports per-player clocks, Increment, a shared Game Clock, and Turn Limit. If a timed player clock hits zero, Clock Collapse keeps 20% of that player's score, resets the clock, and leaves that player on turn. The match continues.
COSMETIC OPTIONS
Start with free chess sets and the Quiet Royal theme, or add optional cosmetic sets, themes, and the Royal Patron badge. Purchases do not change movement, scores, spawns, hints, timers, Castle Swap, leaderboards, or match results.
APPLE WATCH
Play Solo or Battle from the Watch app with the same 4×4 board, local save and resume, time controls, Solo undo, direct tap controls, optional Digital Crown selection, ten free board presets, and ten free piece styles. Watch play is standalone and does not require an iPhone connection.
Royal Merge now includes more Apple Watch board styles. Play Solo or Battle standalone on watchOS with the same 4×4 board, local save and resume, time controls, Solo undo, direct tap controls, optional Digital Crown selection, and ten free Watch board presets.
The developer, David Lew, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- David Lew
- Size
- 49.6 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 9.0 or later.
- iPhone
- Languages
English and 10 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Royal Bundle $2.99
- Royal Patron $9.99
- Themes Pack $1.99
- Chess Sets Pack $1.99
- Copyright
- © 2026 Eat Chess
