文）：
http://www.algonet.se/~ath/

E) 国际象棋的战略

E1.国际象棋战略基本教程
http://www.soyouwanna.com/site/minis/mini/chessMINI/chessMINI1.html
http://www.academicchess.com/

F) 国际象棋的战术

Pinning 
Forking
Double Attack
Discovered Attack
Discovered Check 
Double Check 
The Overworked Piece
Removing the Guard 
Clearance 
Interference
Queening Combinations
The Vulnerable First Rank
Queen Sacrifices 
X-ray Attack
Defensive Combinations
Trapped Man
Zugzwang 
The Helpless King
The Weakened Castled Position

F1.战术组合课程
http://www.thechesshouse.com/shop/SearchResults.asp?ProdStock=4092&title=Chess+Middlegame+Combinations

--战术组合课程（德文）
http://www.cartelera2000.com.ar/chess1.htm

F2. 战术组合习题集（1001题）
1001 Brilliant Chess Sacrifices and Combinations（Fred Reinfeld)
ID:　　　 chessplayer19992000@yahoo.com
password: endgame

G) 国际象棋的战略和战术的结合

http://www.clearleadinc.com/site/chess-strategy-tactic.html
http://www.dpsd.org/ChessTeams/endgames.htm
http://www.clearleadinc.com/site/chess-strategy-tactic.html
http://www.dpsd.org/ChessTeams/endgames.htm

--The link is for suicide chess (a variation of chess), not regular chess.
http://www.matf.bg.ac.yu/~andrew/suicide/StanGold/theory.htm

G) 国际象棋的战略和战术的结合
http://www.clearleadinc.com/site/chess-strategy-tactic.html
http://www.dpsd.org/ChessTeams/endgames.htm
http://www.matf.bg.ac.yu/~andrew/suicide/StanGold/theory.htm

The last link is for suicide chess (a variation of chess), not regular chess.