PATCH NOTES · 22 OCTOBER 2026

What changed, build by build.

Every change players can see, newest build first: what playtesters told us and what we changed, the other changes, and what is still rough.

22 OCTOBER 2026 · BUILD P20

Candidate for the planned 22 October playtest

Build 0.1.0-autochess-p20

Prepared as a local candidate on 13 October 2026 for the planned 22 October playtest. Published as an owner-authorized closed-alpha preview on 15 October 2026; these selected notes still await playtest review.

Other changes

Balance

Known issues

These are selected candidate changes, not a final Playtest Night note. The planned date is not evidence of a completed playtest or a publication.

15 OCTOBER 2026 · BUILD P19

What changed: Playtest Night, 15 October 2026

Build 0.1.0-autochess-p19

The build of Playtest Night #1 on 15 October. It went live on this site on 8 October. These are the changes since build p14, the build of the 7 October playtest.

You said, we changed

Fixed in code. A fix counts as confirmed once players have checked it at a later Playtest Night.

Other changes

Known issues

7 OCTOBER 2026 · BUILD P14

What changed for the 7 October playtest

Build 0.1.0-autochess-p14

Build p14 was the Linux download for the testers of the 7 October playtest; it was never offered on this site. Everything in it is also in the live build. These are the changes since the browser build of 22 September.

You said, we changed

Fixed in code. A fix counts as confirmed once players have checked it at a later Playtest Night.

Other changes

Balance

Before the 7 October playtest, these balance changes had been checked only with automated tests and bots, not by players. What players said about them there led to several of the changes in p19, above.

22 SEPTEMBER 2026 · BUILD P12

What changed since the 17 September playtest

Build 0.1.0-autochess-p12

Everything players could see that landed after the 17 September playtest, in the browser build of 22 September.

Other changes

Balance

Passing tests prove the rules compute deterministically, not that any team wins more often. No win-rate claims follow from this list.