A practical framework for Chess, Checkers, Reversi, and Backgammon
Four classic boards, four different scoring systems, and one useful habit: evaluate what the position allows next, not just what the last move gained.
Mobility is often worth more than material
Capturing a piece or flipping a large group looks decisive, but a move that restricts the opponent can be stronger. In Chess, development and king safety can outweigh an early pawn. In Checkers, keeping a connected formation may matter more than grabbing an exposed man. In Reversi, taking many discs early often gives the opponent useful frontier squares.
After every candidate move, ask how many sensible replies it gives the opponent. Strong moves frequently reduce that number.
Edges, centres, and safe destinations
Board geometry changes value. Reversi corners are permanent; adjacent squares can accidentally concede them. Chess central squares increase piece reach. Checkers promotion rows transform a man into a king. Backgammon points with two or more checkers are safe landing places, while a single checker is a blot that can be hit.
Do not memorise “centre good, edge bad” as a universal rule. Instead ask what control that square creates in the rules of the specific game.
Race only when the position has become a race
Backgammon can switch from contact to racing when the last opposing checkers pass one another. Checkers endgames may become promotion races. Chess pawn endings often turn on a single tempo. Recognising the phase change prevents you from using a fighting plan after contact has disappeared.
In a pure race, count distance and forced moves. In a contact position, include the probability or tactical possibility of interruption.
Use a three-question move check
This short routine catches hanging chess pieces, forced checkers captures, dangerous Reversi frontier moves, and exposed backgammon blots. It also turns Undo into a learning tool: compare the reply you expected with the reply the game produced.
- What does my opponent threaten right now?
- What changes if I make this move: material, mobility, safety, or tempo?
- What is the opponent’s strongest reply, not merely the most obvious one?
Work through a decision
Read the position, make your choice, then open the explanation. These teaching examples describe specific positions, not your current deal.
Chess: why the bishop on c6 cannot move
The position. White's king is on c1 and bishop on c6. Black's bishop is on f4; e3 and d2 are empty. White has a rook on e1 with e2 clear. It is White's turn.
Your decision. The c6 bishop has open diagonals. Why does selecting it show no legal destination?
Reveal the answer and reasoning
The answer. White is in check along f4–e3–d2–c1. No move by the c6 bishop removes that attack. Moving the rook from e1 to e3 can block this check, provided no other attack on the king remains.
A bishop always stays on its starting square colour. The bishop on c6 cannot reach the checking bishop or either interposing square. Legal movement is therefore not just a piece's geometric pattern: after the move, its own king must be safe. This example comes from a position inspected in Niora Games, where the restriction was correct but the short Check label was easy to miss.
Try this next. When a piece seems frozen, read the turn status first. If checked, look for a safe king move, capture of the attacker, or a block. A knight's check cannot be blocked because it does not travel through intermediate squares.
Reversi: why an empty square is not necessarily playable
The position. On one row, a1 is empty, b1 and c1 are opposing discs, and d1 is your disc. Elsewhere, a candidate square has empty space between it and the nearest opposing disc.
Your decision. Which candidate satisfies the capture rule?
Reveal the answer and reasoning
The answer. a1 does: your new disc would bracket b1 and c1 against d1 and flip both. The candidate with a gap does not form a continuous captured line.
Each direction is checked independently. At least one adjacent opposing disc must be followed, without an empty gap, by your own disc. A move may flip lines in several directions at once. If no square meets this test, the player passes; that is not the same as the whole game ending.
Try this next. Compare the opponent's replies after a large flip. Taking many discs now can expose a corner later, while a quiet move may preserve a stable edge.