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JEV ARCADE 2048 Duel SCORE 0
THE TWO-BOARD CHALLENGE 01

2048 Duel.

Your board. JEV’s board. The same chance.

STRUCTURED INTELLIGENCE. REAL PLAY.

READY TO PLAYMATCHED SPAWNSROUND 0 / 2,048
YOU

Make your move.

SCOREYOUR NEXT MOVE COUNTS
Best tile —Empty 16Ready
JEV

Structured, not scripted.

SCORE0AWAITING YOUR MOVE
Best tile —Empty 16Ready

Choose an opponent and start a duel.

Arrow keys / WASD · Swipe your board · No speed bonus

OBSERVE THE DECISION, NOT HIDDEN REASONING

Inside the move.

DECISION SOURCENot started
LEGAL CANDIDATES—
RUBRIC CONFIDENCE—
SERVER DECISION TIME—
Candidate move evidence. Higher model utility is preferred; confidence is not a win probability.
MoveMerge gainEmpty cellsBlock riskSearch valueModel utilityConfidence
Play a move to inspect candidate features and the selected action.
Raw structured decision evidence
No decisions yet.

Exact mechanics are computed by the rules engine. JEV evaluates positional rubrics. Confidence describes a rubric distribution—not the chance of winning.

JEV ARCADE / 2048 DUELNative HTML · deterministic rules · no tracking SDK

Same chance. Separate boards.

Slide tiles with arrow keys, WASD, the direction buttons, or a swipe. Equal tiles merge once per move. A merge adds the new tile’s value to your score.

You and the opponent start identically. Every successful move advances both active boards once and adds the same tile value using a shared, hidden position priority. Different empty cells can produce different spawn locations.

The higher final merge score wins. Reaching 2048 does not end the match. A blocked board freezes; the other continues. Each board is capped at 2,048 successful moves. Equal final scores are a draw. There is no undo or speed bonus.

Live JEV judges structured candidate rubrics; JavaScript handles exact rules and lookahead. Difficulty changes the evidence and search budget—not luck. Its strength has not been established by a live-provider benchmark.

Ranked play needs Discord and the real JEV service. Use /2048 in an approved Discord channel for channel/server attribution. A local heuristic is always unranked and clearly labeled.

Start a new duel?

Your active match will be marked resigned. Its audit evidence remains available, but it cannot submit a high score.

Your data and the evidence.

Required gameplay records include boards, actions, spawns, candidate features, JEV requests and answers, usage, and event hashes. Secrets and future seeds are never included in active-match exports.

Discord login stores your user ID, display name, and avatar reference. No email scope is requested. Community context proves a recent launch, not perpetual channel access.

Optional browser analytics records game input timing, network timing, visibility, and frame gaps. These are labeled untrusted and are never used to score a match. It is off by default and can be turned off in Analytics.

Exports are private to the match owner. World leaderboards show verified scores and display names, not community identifiers. The host controls retention and deletion; the package includes a maintenance tool. There are no third-party tracking services.