The Blunder CheckA ten-second routine before every move.ChessApplied after choosing a move, not instead of choosing one.1What does my move leave undefended?Including the piece that just moved away.2What checks do they have?Every check, including ones that look pointless.3What captures do they have?Every capture, even apparently losing ones.4What threats do they have?Anything hitting two things at once.5Only then, moveTouch the piece after the check, not before.WHY IT WORKSAlmost all club blunders are missed checks or capturesTen seconds catches most of themIt is a habit, not a calculationSit on your hands. Physically not touching a piece until the check iscomplete is the most effective version of this rule.The Blunder Checklearnposters.com
The Blunder Check — printable games wall chart from LearnPosters. Free vector PDF, US Letter and A4.

The Blunder Check, step by step

Applied after choosing a move, not instead of choosing one.

  1. What does my move leave undefended?Including the piece that just moved away.
  2. What checks do they have?Every check, including ones that look pointless.
  3. What captures do they have?Every capture, even apparently losing ones.
  4. What threats do they have?Anything hitting two things at once.
  5. Only then, moveTouch the piece after the check, not before.

Why it works

  • Almost all club blunders are missed checks or captures
  • Ten seconds catches most of them
  • It is a habit, not a calculation

Sit on your hands. Physically not touching a piece until the check is complete is the most effective version of this rule.

Questions about the The Blunder Check poster

What’s on the The Blunder Check poster?
5 numbered steps, with a full worked run-through. Applied after choosing a move, not instead of choosing one. What does my move leave undefended? — Including the piece that just moved away.; What checks do they have? — Every check, including ones that look pointless.; What captures do they have? — Every capture, even apparently losing ones.; What threats do they have? — Anything hitting two things at once.; Only then, move — Touch the piece after the check, not before.. Sit on your hands. Physically not touching a piece until the check is complete is the most effective version of this rule.
Who is the The Blunder Check poster for?
The Blunder Check belongs to the Chess section rather than to a school year, because games is not something one grade owns. Anyone learning improvement can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the The Blunder Check poster?
You have chosen a move. Before playing it, spend ten seconds asking what it allows. A wall chart earns its place by being glanceable from where the work is happening, so The Blunder Check belongs on the wall where that games work actually happens, within glancing distance, rather than filed away.
What other posters go with The Blunder Check?
Analysing Your Games, What to Study First and Playing Stronger Players sit alongside The Blunder Check in the Chess section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Analysing Your GamesWhat to Study FirstPlaying Stronger Players
Is the The Blunder Check poster free to download and print?
Yes. The Blunder Check downloads as a free PDF with no account, no email and no watermark, like everything else in the Chess section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the The Blunder Check poster print at?
The Blunder Check is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of The Blunder Check loses nothing.Printing guide

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