Chess that arranges its board around the Duo's fold, with controls in the side bar
Does Deep Green work on iPhone Duo?
Yes, the developer says so: version 2.1.2 keeps the board on the upper half in laptop pose, centers it on the fold like a book, and spans the fold when open flat.
- App Store confirmedJoachim Bondo, the developer, in the App Store release notes and the changelog on deepgreen.app for version 2.1.2 (released October 13, 2026), which describe support for both displays and every fold pose. The App Store lists Cocoa Stuff as the developer and Joachim Bondo as the seller.
Adapted for the fold
- Book · Partly folded
A board shaped around the fold
In a laptop-like pose the board stays on the upper half. Held like a book, it centers on the fold, like a folding chess board.
- Open · Inner display
A board across the open display
Open flat, the board spans the fold and takes the space the bars leave it. The game controls move into the vertical bar.
About Deep Green
Deep Green is a chess game. Version 2.1.2, released October 13, 2026, is made for the iPhone Duo: it arranges the board around the fold and puts the game controls in the side bar.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store release notes for version 2.1.2 (released October 13, 2026) mention iPhone Duo: "Deep Green 2.1.2 is made for iPhone Duo and gives the board more room everywhere."
App version: 2.1.2.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗· Developer statement reviewed
Developer claimed · iphone-duo
Read the developer's changelog for version 2.1.2, which describes the Duo layouts and the controls in the side bar.
App version: 2.1.2.
Based on the developer's description alone: no screenshots, recording or build were seen. The App Store's release notes for 2.1.2 say the same.
View reviewed evidence ↗
Related guides
iPhone Duo games: what's coming, and what the fold does for play
Which games have been shown on iPhone Duo, how un-updated games look on the open display, and the new kinds of play builders are making with the hinge, the half fold and two screens.
iPhone Duo poses: closed, open, book, standing and Split View
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Sources: Deep Green's changelog for version 2.1.2 (deepgreen.app) · Deep Green's website (deepgreen.app) · Deep Green on the App Store (apps.apple.com)
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