PipionChess

Learn chess, one move at a time.

Animated lessons, daily puzzles and the traps nobody warns you about. Explained by Pipion: a small pawn with one big ambition.

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Nov 6, 2026

7 "Illegal" Chess Moves That Are Actually 100% Legal

Seven chess moves that look completely illegal and are 100% legal, plus one bonus rule and three moves that really are illegal. Settle the argument before your next game.

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Today's puzzle

Three new puzzles every day: easy, medium and hard. Keep your streak alive.

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Series

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2 videos

Chess Basics (Start Here)

Learn chess from zero with Pipion: every piece, every rule, and the habits that win beginner games. Watch in order.

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2 videos

Your Move: Chess Puzzles

Quick chess puzzles with a 3-second countdown. Comment A, B or C before the reveal.

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2 videos

Chess in 60 Seconds

One chess idea in under a minute, cut from the full PipionChess lessons.

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1 video

Legal or Illegal?

Is that move allowed? Guess first, then watch the ruling.

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1 video

Pipion's Office

The chess pieces, as coworkers. Every episode ends with a real chess fact.

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Shorts

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En Passant: The Rule Everyone Thinks Is Fake

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Castle or Not? Only One of These Is Legal

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The Pawn's First Day at Work

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Can a Pawn Ever Move Backwards? Legal or Illegal?

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The Knight Is the Only Piece That Can Jump

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Which Piece Can Take the Pawn? You Have 3 Seconds

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Who is Pipion?

Pipion is the smallest piece on the board with the biggest plan: reach the last rank and become a Queen. Every video is one step of that trip, and you get to learn chess along the way.

More about Pipion

One new lesson every week

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