The bishop moves diagonally. It may move any number of squares along the diagonal as long as there is nothing in the way.

In picture 1 there is a bishop in the centre of the board. The green lines show all the squares it may go to. If a bishop starts off on a black square it can only reach black squares. Similarly a bishop which starts the game on a white square must remain on white squares. A bishop can only reach half of the squares on the board.  In picture 2 the bishop is on b2 and the green line shows the squares it can reach. It cannot reach d1 because there is a white rook in the way. It may capture the black knight on a4

Picture 1                                                                                 Picture 2

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In picture 3 the bishop which was on  b3 in the last picture has captured the knight on a4. We write Bxa4.

Now in picture 4 we have a bishop on d5. It will now move to e6. This is shown by the blue line.

Picture3                                                                                 Picture4

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Picture 5.     Be6                                                                Picture 6.             Bf7