57

• Types of double attack

• With which pieces?

• Notes and observations

The double attack

5Unit

58

Think

Colour in the drawing with the colours of your choice.

These types of drawings are called mandalas.They are a series of geometric forms with one centre point, organized at different visual levels. The basic forms most used are: circles, triangles, squares and rectangles.

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59

Learn

Types of double attack

When the king moves, the other piece is captured.

The rook puts the king in check and also attacks another piece.

When black moves the more valuable piece, the other piece is captured.

The knight attacks two pieces at the same time.

In check

Not in check

When two pieces are attacked simultaneously with the same piece.

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60

Learn

Draw arrows to show the moves that create a double threat.

White to play Black to play

Black to play White to play

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61

Learn

The king and the pawn have the least capacity to create double threats.

All of the pieces can create a double threat.This has already been shown with the knight and the rook on page 59.

King

With which pieces?

Pawn

Bishop Queen

The queen can be a threat along diagonals, fi les and ranks.

The bishop can only be a threat along the diagonals.

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62

Learn

Draw arrows to show the moves that create a double threat.

Black to play Black to play

Black to play White to play

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63

Learn

It doesn’t matter if the attacking piece is being threatened by a more valuable opponent’s piece

To win points, the attacking piece must be less valuable than the pieces being attacked or being defended.

Notes and observations

With the attacking piece being defended

With the pieces that are under attack being defended

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64

Learn

Show if the following moves are an effective double threat. Circle the correct answer. In case of a negative answer, explain why.

Yes No Yes NoA piece under attack is less valuable and is being defended.A

BThe attacking piece can be captured.

A piece under attack has the same value and is being defended.A

BThe attacking piece can be captured.

Yes No Yes NoA piece under attack is less valuable and is being defended.A

BThe attacking piece can be captured.

A piece under attack is less valuable and is being defended.A

BThe attacking piece can be captured.

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65

Think

Solve the following 4x4 sudokus with chess pieces.

Place the chess pieces shown under each grid until all the squares are fi lled.Two pieces that are the same must not be together on the same row, column or on the squares of the same colour.

1

3

The cut out pieces can be found on the last page of this book.

66

Think

Draw arrows to match each cartoon vignette with its missing sentence.

Draw arrows to match each cartoon vignette with the type of sentence.

Interrogative

We’re playing chess!

Exclamatory

We’re playing chess.

Explanatory

Shall we play chess?

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We’re going to organize

a tournament. Can we participate? I’ve won!

No, I still have todo my homework.

What are youdoing at 5pm?

What are you doingon the computer?

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67

Think

Look at the prices of these objects and answer the following questions.

9 €15 € 42 €

How much does a chess set cost?

How much does a chess set and a clock cost?

How much do 10 complete chess sets (board, pieces and clock) cost?

What’s more expensive, 5 boards or a clock?

What’s more expensive, 5 boards or 3 boxes of pieces?

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24 €=

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=<

>

=<

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>

68

Think

On each continent there is a chess piece. Match each continent’s silhouette with its name and with the name of the chess piece.

North America

South America

Asia

Africa

Europe

Oceania