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JEV ARCADEConnect Four Ready to play

HUMAN INTUITION / STRUCTURED INTELLIGENCE

Four in a row.
A different kind of opponent.

Make your move. Inspect the evidence. Discover how JEV plays.

CONNECT FOUR7 columns · 6 rows · 1 shared board
H
YouHuman
Local practiceNot JEV
J

Choose a column above. Keyboard: 1–7 or arrow keys + Enter.

Read board as a table
Board, top row to bottom row
MOVE 00 / 42LOCAL PRACTICEYou move first

Local practice stays on this device and never enters a leaderboard.

EVERY MOVE HAS A RECORD

Match timeline

Your match begins here.

Connect Four

Drop a disc into a column. Gravity places it in the lowest open space. Connect four horizontally, vertically, or diagonally before your opponent does. A full board without a connection is a draw.

Controls

Click or tap a column button. Use keys 1–7, or select a column with the arrow keys and press Enter or Space.

JEV with tactical safeguards

Legal moves and tactical facts are computed by the rules engine. JEV scores the remaining candidates. Higher difficulty adds tactical depth and structured factors. Local practice is a separate, deterministic heuristic opponent—not JEV.

Official matches

Sign in with Discord and choose JEV. Official matches assign the starting side, cannot be undone, and have a 24-hour deadline. Resignation or an unfinished deadline counts as a loss. Verified service interruptions do not. Starting sides and opponent versions have separate leaderboards. External assistance cannot be detected reliably.

Privacy & data

Discord sign-in stores your account ID and display name, not your email or messages. Only game state and candidate features go to JEV. A channel launch records the issuing server and channel for result attribution.

Authoritative matches retain moves and decision evidence for audit. Deep diagnostic evidence is retained for the operator-configured period (90 days by default); minimal replay and results remain until deletion. Optional client telemetry expires after 7 days.

Local practice data stays in browser storage. Official world leaderboards show display names and scores, not Discord IDs or channel membership. Diagnostic exports are private to the match owner.

Replay inspector

Imported replays are inspected locally and can never submit a leaderboard result.