Teletext-Tools 821 — Connect Four

BOARD

VS CPU

TURN: P1

WINS 0-0

READY — TAP A COLUMN

SETUP

P821

Mode

CPU

Tap: anywhere in a column. Keys: 1–7 • U undo • N new

SETTINGS

P821/2

Mode

CPU difficulty

SETTINGS SAVED — RETURN TO PAGE 1

How to win: Connect 4 in a row.

Rows: Horizontal, vertical, diagonal.

Tip: Centre columns are powerful.

FAQ + SEO

P821/3

Updated: 2026-02-22

Is CPU perfect? No — it’s fast and fun, not unbeatable.

Best opener? Take the centre, build threats.

Keywords: connect four online • 2 player connect 4 • connect four against computer • retro board game