Competitive checkers has extensive opening theory, but the underlying principles are few and they follow directly from the fact that men move only forward.
1. Control the centre
A piece in the centre of the board has more available moves than one at the edge, and it attacks more squares. Edge pieces are safe from capture on one side but they are also nearly inert.
The practical rule: advance through the middle files, and avoid pushing pieces to the outer columns without a reason.
2. Advance in connected groups
A piece with a friendly piece diagonally behind it cannot be profitably captured — the recapture is automatic. A piece advancing alone can be taken for free.
So push pieces in pairs or in a phalanx, with support behind. The shape to aim for is a wedge advancing together, not a spearhead that gets picked off.
3. Do not move the back row too early — or too late
Back-row pieces block kinging, which is valuable. But four pieces sitting still is four pieces not playing, and the opponent will eventually have more force in the centre.
Standard practice is to keep two back-row pieces in place and develop the other two. Which two depends on where the opponent is advancing; hold the squares on the side they are pressing.
4. Think about what the opponent is forced to do
Because captures are compulsory, every advance should be checked against one question: if they take this, where do they land and what does that allow me? This is more important in the opening than any general principle, because the two-for-one shot is available very early.
Count before you advance
Any piece you push into contact will be taken. Before pushing, count the exchange to the end — often the piece you appear to lose comes back with interest.
The 'first move' openings
There are seven legal first moves for Light, and they are traditionally named. Competitive players study them in depth; casual players do not need to. What matters is that some of them commit your position more than others.
The safest general choice is to advance a centre piece and see what the opponent does. Edge openings are playable but they narrow your options and give up central squares early.
Avoiding early weaknesses
- Do not create holes in your own formation that let a piece slip through to your back row.
- Do not chase a single enemy piece with a single piece of your own — you will be the one left exposed.
- Do not push both centre pieces forward simultaneously without support behind them.
When the opening ends
Roughly when the first exchanges have happened and both sides have pieces past the middle of the board. At that point the game becomes about kinging races and trapping, and the opening principles give way to concrete calculation.