Blocking & Threats
📋 What it is
You must block an opponent’s three-in-a-row before completing your own — defence first when they’re about to win.
🗣️ Coach says
The golden rule of turn order: if your opponent can win NEXT move, block it — even if you have your own plan. A win you don’t reach doesn’t count if you’re already beaten. Scan for THEIR threats every turn.
🧠 Memory hook
Block their win first. Scan for their threats before you chase yours.
😂 Giggle
Why did the Dots and Boxes player avoid the third side?
Because giving away a box is a hard line to draw!
😲 Whoa!
Beginners lose most grid games by focusing only on their OWN line and missing the opponent’s winning move.
✅ Quick check: Your opponent has three in a row AND you have three in a row. What must you usually do first?
Say your answer out loud first — then reveal.
Block their three-in-a-row — if they move first next turn they win, so defence comes before your own completion (unless YOUR move wins immediately).
Reading whose threat is faster is core grid-game defence.
🪄 Trick question: True or false: you should ALWAYS block instead of completing your own four.
Careful — think it through, then reveal.
False — if your OWN move wins the game immediately, take the win; you only block when they would win first.
A common beginner over-correction — win-now beats block.
🧪 Try it! (2 minutes)
In a game, name your opponent’s biggest threat BEFORE you plan your own move.