Rapid development of pieces vital for attack and defence

An attack always becomes dangerous in a chess game is when the pieces have not come out to play or in chess terms when the pieces are undeveloped. Chess basics emphasise on rapid development of pieces in the opening stages of the game so that they can attack as well as defend.

The King is left to fend for himself and his pieces cannot come for defence at the most crucial time when they are undeveloped. This can easily be seen in the game which follows where right till the very end, black’s queen side is highly undeveloped.

White: Emil Sutovsky (2565) – Black: Loek van Wely (2605), Tilburg, 1996, Sicilian Defence:
1. e4 c5
The Sicilian defence
2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. f4 Be7 8. Be3 0–0 9. 0–0
Faithfully sticking to opening theory
9. ..Qc7
The evolvement of chess theory is an ongoing process and this line which was considered a good continuation, has been refuted
10. g4

Sutovsky has the reputation of being an aggressive player and here one can understand why as he makes his aggressive intentions clear, quite early in the game.

10...b5
Black decides to act on the queen side.
If 10...Re8 11. f5
11. g5
An aggressive advance!
11. ..Nfd7 12. Bd3
If 12. f5 b4 13. fxe6 bxc3 14. exf7+ (14. exd7 Nxd7 15. Nf5 Ne5 16. bxc3 Be6 with good compensation for the pawn) 14...Kh8
12...Re8
A nice move! If 12...b4 13. Ne2 and then 14. Ng3 and f4-f5. [If 12...b4 13. Nce2]
13. Qh5
The queen also gets into aggressive mode
13. ..g6
Defensive mode! With two bishops and the queen trained on the King side, Black is smelling danger
14. Qh4 b4
If 14...Bb7 15. Rf3 b4 16. Nce2
15. Nce2 Bb7
A blunder! White is threatening to transpose the rook:Rf1–f3-h3,but black doesn't pay any attention to this threat. The only move was 15...Bf8,bringing the bishop to g7,and the knight to f8; If 15...Bf8 16. Rf3 Bg7 17. f5 (17. Rh3 Nf8 18. f5 exf5 19. exf5 Nc6 with unclear game.) 17...exf5 18. Nxf5
16. Rf3
Another dangerous move by White! He is threatening to play Rah3 and pressurize the King with checkmating threats. Also White is looking at a possibility tos acrifice the knight to open up theg ates towards the King
16...h5
Black obliges White by making the move he wanted . But then Black does not have many good choices. If 16...Nc6 17. Rh3 Nf8 (17...h5 18. Ng3 Nxd4 19. Bxd4 e5 20. Nxh5 and white is check-mating very quickly.) 18. f5 and then f5-f6
17. Ng3 Bf8
If 17...Nc5 18. f5 exf5 19. Ndxf5 gxf5 20. Qxh5
18. Nxh5
It was just a matter of time before White unleashed this knight sacrifice. Black does not have any choice but to accept it
18...gxh5 19. Qxh5 Bg7
If 19...Nc6 20. Nxc6! Bxc6 21. Bd4 e5 22. Bc4 d5 23. fxe5 Nxe5 24. Rh3 Bg7 25. Qh7+ Kf8 26. Bc5+ Re7 27. exd5
20. f5 exf5
Black has run out of moves as 20...Ne5 21. Rh3 (21. f6 Nxf3+ 22. Nxf3 e5 23. Rf1) 21. ..Nbd7 22. Rf1 Nxd3 23. f6 (23. Qh7+ Kf8 24. f6 (24. fxe6 N7e5 25. Nf5) 24...Nxf6 25. gxf6 Bxf6 26. Rxf6+-) ; 20...Nc6 21. fxe6 Nde5 (21...fxe6 22. Qf7+ Kh7 23. Rh3 checkmate) 22. exf7+ Nxf7 23. g6 also end up without any hope
21. Nxf5 Nf8
If 21...Bxe4 22. Nh6+ wins and 21...Ne5 22. Rh3 Kf8 23. Qh8+ Bxh8 24. Rxh8 check-mate and if 21...Re5 22. Nh6+ Bxh6 23. Qxf7+ Kh8 24. Rh3 also wins for White
22. Nxg7 Kxg7 23. Bd4+ Re5
Diagram 1...
Black’s pieces are hopelessly undeveloped on the queen side
24. Raf1 and Black resigned for if
24. Raf1 Ng6 (24...Kg8 25. Rh3 Ng6 26. Qh7+ Kf8 27. Qxg6 loses) 25. Rxf7+ Qxf7 26. Rxf7+ Kxf7 27. Qh7 (27. Bxe5 dxe5 28. Qh7+also loses)
Diagram 2...
Black to play and win
1. .. Rxf1+ 2. Kxf1 Nxe3+ 3. Kf2 Nxc2 and Black wins