Windmill

Basically a repetition of discovered checks, while taking material. Can be done by a knight or rook.

Knight one in a game  (from move 8): http://www.chess.com/livechess/game?id=442501453

Windmill is moving your rook and checking your opponent king with your bishop in the same time, winning material

thx for your videos green castle block

yeah, the coolest is when you can take out a whole rank of material then ice it with capturing your opponent's queen just before you apply checkmate. 

To see a famous one in action, check out "The Game of the Century" with Bobby Fischer doing a windmill with the black pieces after a queen sac. (moves 18-23 will give you the picture.)

Here's a link where you can (click on the d7 square to flip the board) play through the actual moves of the game to get a feel for it:

http://www.chessgames.com/perl/chessgame?gid=1008361

Oh. But its really hard for me to make a kind of position that after that create a windmill. Is there a kind of strategy?

Your tactics trainer and chess mentor settings can be set to thematic problems consisting of windmills!

Going to your settings and adjust the type of training you want to windmills until you get them down could be a helpful idea. 

You'll know how well you did because they will show you the percent of windmill problems you got correct.

I will say this.  While the Bishop on f6 with the Rook going back and forth along the 7th rank is the most common variant of the Windmill, it's also fairly obvious when it's coming and/or is a threat.  In my 2060+ tournament games, I have NEVER suffered a windmill with the Rook and Bishop, and have only conducted it once or twice.

The variant with the Knight is prettier, and harder to detect.  It's typically a Knight and Bishop where the King only had 4 available squares either due to being in the corner, or in the one that I suffered once, the King was cut off by a White rook on the g-file.  I don't have the game as this happened years ago, but if you can picture a Black King on f8, White Knight on d6, White Bishop on c5 (that much I remember), White Rook on the open g-file, and something covering e6 and f6, not sure what, and either White pieces covering or Black's own pieces blocking d7 and d8 (like maybe a Black Bishop on d7 and Black Rook on d8), and then plop Black pieces on squares that are Knight-moves away from d6.  I did fall victim to this once, where my King had only f8, e8, f7, and e7 with the Knight and Bishop alternating checks, and it's actually a lot more visually attractive than the traditional Rook windmill.

Some particularly anal persons have insisted that the device with Rook and Bishop is known as a "see-saw" and only the device with Knight and Bishop is the "windmill" but I think it's generally okay to refer to either as a "windmill" - it gets the point across.

Thanks everyone. I would never understand a windill without you :) .

Scottrf,    Good example....right to the point.

why does no one consider more than two pieces, I did a small one with K+B+Q that would've been massive if i chose not to checkmate ASAP. This was casual OTB so i sadly have no proof