x
Chess - Play & Learn

Chess.com

FREE - in Win Phone Store

# Rules of chess

Summary.

White best openings..from better to the best

1. d4 Nf6 2. Bg5

1. d4 Nf6 2. c4 c5 3. d5 b5

1. e4 e5 2. Nf3 Nc6 3. Bc4

1. d4 d5 2. c4

1. e4 e5 2. Nf3 Nc6 3. Bb5

1. e4 e5 2. Nf3 Nc6 3. d4

1. e4 e5 2. Bc4

1. e4 e5 2. Nc3

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6

1. e4 e5 2. f4

1. d4 d5 2. Nc3 Nf6 3. e4

1. d4 Nf6 2. c4 e5

1. e4 e5 2. Nf3 d6

1. d4 d5 2. e4

1. e4 e5 2. Nf3 f5

1. e4 e5 2. Nf3 Nc6 3...exd4 4. c3 dxc3 5. Bc4 cxb2

1. e4 e5 2. Nf3 Nc6 3. Bb5 3...d6

1. d4 d5 2. c4 2...c6 3. Nf3 Nf6 4. Nc3 Bf5

Black's Best  Openings

1. e4 c5 2. c3 or 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 or e6

1. e4 c5  2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4

1. e4 g6

1. d4 d5 2. Nc3 Nf6 3. Bg5

better openings side has less chance to reach a draw

when the last step of the opening book is finished,then its the midde game

Middle game

combination Concepts

A new point…the position is under two or three pieces protection than under one piece protection,and at least one different piece is involved in protecting this point.

a New combination

A new flush,at least one more different piece involved in 5 same color pieces connection.

A new three of a kind,3 protecting pieces protect a new point.

A new high card,2 protecting pieces protect a new point.

New two A pair,new big piece under two pawns protection,or New pawn chain,which means 3  different   pawn chain.

New A pair,new big piece under one pawns protection or under one pawns attack,or different 2 pawn chain.

move concept

Active exchange means that after one or more than one piece trading,the opponent can not capture the piece in the next step.

Passive exchange means after one or more than one piece trading,the opponent can keep capturing or threatening a piece in the next step ,or he can check.

threatening step,the piece you moved can capture the opponents piece in the next step(regardless of the capturing piece under other pieces attack as long as its not under the attack of the piece it attacks,regardless of the opponents piece to be captured is under protection)

Most importantly,if one move you make can make more than one combination,then its much better than the move that only makes one combination.

First check  opponents move

if he has made a new combination,considering the issue that most new combinations are made with some other new combinations or threating moves,so the best reply is to actively exchange the pieces of the last new combination.

make the move to actively exchange his last combination pieces as the following...

When he made a new flush ,first actively exchange piece of opponents  piece of last connected five on the weak square

When he made a new three of kind ,first actively exchange piece of opponents last three of a kind piece.

When he made a new high card (with two pieces protecting one new position)  ,first actively exchange the last pieces which formed two protecting one position.

When he made a new two A pair,exchange actively the piece under two pawns protection,or first actively exchange the pawn chain head with pawn

Second,Make the threatening steps.
When the move to exchange actively his LAST combination piece  isnt possible( passive exchange situation or the blocked way,far away  for exchange pieces)
threatening step...the capturing piece can not under the attack of the piece it attacks

Make a threatening step towards one piece of the existing flush,or

Create a new flush.5 same color pieces connection(at least one different piece involved) +37.5

make an threatening step towards piece of opponents  existing main three of a kind piece,or

Create a  new three of a kind (three pieces protecting one new position) +19.7

make an threatening step towards the existing main high card piece(two protect one position),or
Create a  new high card(two pieces protecting one new position) +4.74

make a threatening pawn step to a big piece under two pawns protection, make a non pawn threating  step towards the 3 pawn chain head,or
Make a new two A Pair (move a new big piece under two pawns protection),or Make a  new  three pawns chain +3.26

the order to decide which step to move is the essence of chess,the evalution give you an answer.

Step Evalution
Break any combination is also the first and best reply,the score would be ignored,as it cant accurately be measured.

make ,or threaten one new flush +37.5
make ,or threaten  one new three of a kind +19.7
make ,or threaten one new high card+4.74
make,or threaten  one new two pair+3.26
make ,or threaten  one new pair +1.28

How to make a better move..

1.exchange actively pieces of the last new combination pieces.
2.Always make a better move score than opponents last move score.
3.one move that creates more new combinations or threatening more existing combinations than one would be much better.
4.Issue of threatening existing combinations or making  new combinations.when threatening or making more combinations have a conflict,the total score speaks.

Material value compared with the step evalution.
when you make a weaker move,and lose the score,or you make a better move,and rise the score,it equalize the material of both sides.

Defense pawn 17
attacking pawn 22
bishop 29
knight 26
rook 33
queen 70
King priceless.

To make a even better step,then dont make a step against the below rules,regardless of the move score above.
This part is from my personal observation of many engine competitions,and I have noticed that they never make steps below in a certain condition.
So I take it that the below steps in a certain condition would destory the potenial struture of our own,mainly a sense part of chess.
concept

The king is the opponents king,the piece is the opponents last piece.The side to look at pieces is from our side.

The defense line is the bottom line for each side,and the attack line is the another line above the defense line.

The line refers to the horrizonal line.

when King in black,last piece in black, then
Bishop can not be moved to the defense line.
Knight can not be moved to the black line.
Rook  can not be moved to the black line.
Queen can not be moved to the black attack line.

when King in black,piece in white,then
Bishop can not be moved to the black line.
knight can not be moved to the black attack line.
rook can not be moved to the white line or the black attack line.
Queen can not be moved.

when King in white,piece in white,then
Pawn can not be moved to the black attack line.
knight can not be moved to the black defense line.
Rook can not be moved to the attack line.
Queen can not be moved to the black line.

when King in white,piece in black,then
Pawn can not be moved to the attack line.
knight can not be moved to the white attack line.
rook can not be moved to the attack line.

when King in white,piece in black,then

Bishop better be moved to the black defense line.
Queen better be moved to the black defense line.
King better be moved to the white attack line or the black defense line.

Knowledge used in the article
Poker combination statistic
Main situation control measurement
Attack and defense relation
Harmonious relationship between pieces,from war strategy.
computer engines defination of piece value
Rybka engine knowledge about piece potenial value
Lottery matrix rule for numbers under certain condition

Online Now