
Learn Chess.
Think Ahead.
Play Your Principles.
15 principles. A lifetime of chess passion. From 2001 to 2026 and beyond.

Game Strategy · The Rules
How to play — and what to look for
Chess is a game of principles and patterns. Learn the rules, train your eye for tactics, and the moves start to play themselves. The full guide — every principle, every pattern, every worked example — lives inside the book.
Forks
One piece attacks two or more targets at once — forcing your opponent to lose material.
Skewers
A valuable piece is hit first and forced to move, exposing the piece behind it to capture.
Captures
Always scan the board for free pieces and favorable trades before every move.
Checks
A check forces the king to respond — a powerful way to dictate the flow of the game.
Threats
Quiet moves that menace material or mate, building pressure your opponent must answer.
Traps
Set bait that looks tempting, then punish the capture with a tactic that wins material.
Forks · Skewers · Captures · Checks · Threats · Traps
Scan for all six on every move — the heart of the CCTTS method taught in the book.

Think it through
What would you do here, as Black?
A knight forks the king and queen — but every move has a counter-threat. This is the CCTTS method in action: scan for checks, captures, and threats before you commit.
Don't trade for no reason
Every exchange should serve a plan. Trading pieces just to trade hands tempo back to your opponent and erodes your edge.
Develop early
Bring your knights and bishops into the game before pushing pawns or launching attacks. Active pieces win positions.
Castle instead
Tuck your king to safety early. A castled king survives the middlegame storms that wreck an uncastled one.
The complete "how to play" lives in the book
Rules, openings, the full CCTTS method, and every one of the 15 principles — with diagrams and worked examples — are collected in Leonard Barr's book.
Get the BookFree Academy
Start learning today
The Official Book
Leonard Barr's 15 Principles to Go By in Chess
Finding Skewers, Captures, Checks, Traps, and Discovered Mate-in-1s — Notes from 2001–2026.
The Journey
From 2001 to 2026
Timeline milestones coming soon.
Your move.
Join the free academy and start applying the 15 principles today.
Begin the Academy