Connect Four Blog
Learn the game, sharpen your strategy, and master Connect 4.
Playing Second in Connect Four — A Complete P2 Strategy Guide
Going second in Connect Four is a mathematical disadvantage. But P1 never plays perfectly. Learn how to draw, counter-attack, and win as the second player.
The Double Threat — Connect Four's Most Powerful Attacking Pattern
Learn how to build and use double threats in Connect Four. When your opponent can only block one, two threats always win. Master this core attacking pattern.
Connect Four Is a Solved Game — What That Means and Why It Matters
Connect Four was mathematically solved in 1988. The first player wins with perfect play. Here's how it was proven, what the solution looks like, and what it means for your games.
Connect Four Openings Database - Every First Move Analyzed
Complete analysis of all 7 Connect Four opening columns. Engine evaluations, example games, and winning strategies for each first move.
Odd/Even Threat Strategy — The Concept That Decides Every Endgame
Master odd/even threat theory in Connect Four. Learn how threat parity determines who wins, the undercut rule, and P2's draw strategy. The single most important concept in competitive play.
Allen vs Tromp — A Historic Connect Four Match Between the Game's Two Solvers
The complete analysis of the 1995 Allen vs Tromp Connect Four match — 6 games between two solvers of the game, ending 3-3 with no draws.
What Is Connect Four? The Classic Strategy Game Explained
What is Connect Four? A beginner-friendly introduction to the classic two-player strategy game. Learn why Connect 4 is fun for all ages and skill levels.
Connect Four Rules — How to Play Connect 4
Learn the complete rules of Connect Four. Board setup, how turns work, winning conditions, and tips for your first game of Connect 4.
Connect Four Strategy Guide — How to Win at Connect 4
Master Connect Four strategy with proven tips on center control, double threats, defensive play, and the odd-even rule. Improve your Connect 4 game today.
Connect Four Opening Strategy — Best First Moves
Learn the best Connect Four opening moves and why the center column matters. Understand opening principles to build early advantages in Connect 4.
The History of Connect Four — From Board Game to Digital Classic
Discover the history of Connect Four. From Howard Wexler's invention in 1973 to the mathematical solution in 1988 and the modern online era of Connect 4.
Connect Four Puzzles Guide — How to Solve Tactical Puzzles
Learn how to solve Connect Four puzzles. Understand tactical patterns like forks, threats, and forced wins to improve your Connect 4 puzzle rating.