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DISCOVERED ATTACK!
Compiled by notyetagm
--*--

Double attacks from more than one piece.

Never miss the opportunity to unmask one of your masked line pieces with a forcing move.

A great example of a <discovered attack> is Shirov's 32 ... ♗d6-f4! from the game Seirawan v. Shirov Buenos Aires 1993 listed below. By unmasking the Black d5-queen, Black threatens 33 ... ♕x♕. By moving his dark-squared bishop to f4 where it attacks the undefended White e3-bishop, Black also threatens to play 33 ... ♗x♗+. White has no defense to these twin threats since 33 ♕x♕ is refuted by the <zwischenschach> 33 ... ♗x♗+! and only then re-capturing the White queen (34 ... px♕ or 34 ... ♗x♕).

The position after the blunder 32 ♕d8-d7?? and right before Shirov's winning <discovered attack> 32 ... ♗d6-f4! is shown below.


click for larger view

Event "Buenos Aires Najdorf"
Site ""
Date "1993.??.??"
Round "2"
White "Seirawan, Yasser"
Black "Shirov, Alexey"
Result "0-1"
WhiteElo "2595"
BlackElo "2670"
NIC "SL 3.1.14"
ECO "D10"
PlyCount "64"

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. Nf3 b5 6. cxd5 cxd5 7. Ne5 Nbd7 8. f4 e6 9. Bd3 Bb7 10. O-O Bd6 11. Bd2 O-O 12. Be1 Ne4 13. Qb1 Ndf6 14. Bh4 Rc8 15. Rc1 Qa5 16. Bxe4 Nxe4 17. Nxe4 dxe4 18. Nd7 Qd2 19. Nxf8 Qxe3+ 20. Bf2 Qxf4 21. g3 Rxc1+ 22. Qxc1 Qf5 23. Be3 Bxf8 24. Qc7 Qf3 25. Qf4 Qe2 26. Qf2 Qd3 27. Qd2 Qc4 28. b3 Qd5 29. Rc1 Bd6 30. Qa5 h6 31. Qd8+ Kh7 <32. Qd7?? Bf4!>
0-1

P H Nielsen vs Kamsky, 2006

What a <DISCOVERED ATTACK> exhibition this is by Kamsky (Black).

Position after 27 ... ♕f6-g6:


click for larger view

Here Kamsky has not one but -two- <DISCOVERED ATTACK CHAINS>:

White b7-♖ + Black c7-♗ + Black e7-♖
White c2-♕ + Black e4-♘ + Black g6-♕

So Kamsky is threatening a <DISCOVERED ATTACK> against the <UNDEFENDED> White b7-rook -and- a <DISCOVERED ATTACK> against the <UNDEFENDED> White c2-queen.

Final position 39 ... ♖a1-d1! 0-1:


click for larger view

And in the final position, Kamsky threatens yet another <DISCOVERED ATTACK> which prevents the White d7-pawn from promoting: 40 d7-d8=♕ ♗e7x♕d8 41 ♖c8x♗d8 ♘d5xe3+ <discovered attack> 42 f2xe3 ♖d1x♖d8, leaving Black a rook(!) ahead.

So this final <DISCOVERED ATTACK CHAIN> would be

White d8-♖ + Black d5-♘ + Black d1-♖


20 ... Qa4xRd1+!! Black d8-rook,d5-bishop control d1-sq *TWICE*
Li Chao vs Bu Xiangzhi, 2009 
(C42) Petrov Defense, 20 moves, 0-1

Decoy Black king to e7 to set up a winning discovered attack
Anand vs Leko, 1994 
(B57) Sicilian, 31 moves, 1-0

14 Nd4-f5! discovered attack, threatening 15 BxB and mate on g7
Fritz vs Hertneck, 1998 
(C01) French, Exchange, 25 moves, 1-0

White e5-knight can give check, makes a great discoverer
J Stocek vs Eingorn, 1998 
(C03) French, Tarrasch, 36 moves, 1-0

(VAR) 21 a5! Bxa5?? 22 Nc3xd5! and White wins a piece
Kasparov vs Kramnik, 1994 
(D19) Queen's Gambit Declined Slav, Dutch, 86 moves, 1-0

31 ... g5?? allows winning discovered attack 32 c6!
Carlsen vs Navara, 2007 
(D86) Grunfeld, Exchange, 50 moves, 0-1

Aronian vs Gelfand, 2007 
(D43) Queen's Gambit Declined Semi-Slav, 36 moves, 1-0

22 ... Qc7-a5+ completes discovery chain with b4-pawn, d2-rook
Anand vs Judit Polgar, 2003 
(B90) Sicilian, Najdorf, 39 moves, 0-1

8 Ne4-d6+!! both a discovered pin and discovered deflection(!)
P Horn vs Shabalov, 1992 
(B21) Sicilian, 2.f4 and 2.d4, 53 moves, 1/2-1/2

35 ... Re2+! 36 Qd3xRe2?? creates TM=Q for a discovered check
Mamedyarov vs Kamsky, 2007 
(D10) Queen's Gambit Declined Slav, 38 moves, 1-0

27 ... Be4-f3! unmasks the Black e5-rook, wins material
S R Burns-Mannion vs Nunn, 1992 
(B33) Sicilian, 52 moves, 1/2-1/2

29 ... Qf3?? lines up Black queen, White c3-rook for discovery
Leko vs Piket, 1997 
(B39) Sicilian, Accelerated Fianchetto, Breyer Variation, 30 moves, 1-0

31 - Rf4xf3! unmasks Black g5-queen vs undefended White e3-quee
Stahlberg vs Alekhine, 1930 
(E23) Nimzo-Indian, Spielmann, 31 moves, 0-1

27 Qh4-f4! gains time on Black d2-rook to form DISCOVERY CHAIN
Smyslov vs Pachman, 1947 
(C11) French, 33 moves, 1-0

36 Rd4xf4?? hangs White queen 36 ... Re6-e1+ and 37 ... Qf5xQd7
A Ilic vs H Aghalarov, 2007 
(B28) Sicilian, O'Kelly Variation, 38 moves, 0-1

32 ... Nc4-d6+ threatens both 33 ... Nd6xKe4 and 33 ... Rc8xBc1
M Erdogdu vs R Almond, 2006 
(B01) Scandinavian, 32 moves, 0-1

50 e5-e6? Bf7-h5+! Black g7-rook attacks undefended a7-rook
Carlsen vs Short, 2004 
(D37) Queen's Gambit Declined, 54 moves, 1-0

Kamsky wins a game in which he sets up 3(!) discovery chains
P H Nielsen vs Kamsky, 2006 
(D15) Queen's Gambit Declined Slav, 39 moves, 0-1

38 Be7-f6+! unmasks an attack on the undefended Black e8-queen
Kasparov vs G Gonda, 1988 
(D32) Queen's Gambit Declined, Tarrasch, 38 moves, 1-0

33 Qe8-e5+! tempo to create chain Black c7-queen, White d6-rook
Epishin vs Polugaevsky, 1993 
(E15) Queen's Indian, 36 moves, 1-0

34 Qe2xg4! discovers attack on Black e3-queen by White e1-rook
Anand vs Kasparov, 1996 
(B90) Sicilian, Najdorf, 54 moves, 1-0

35 Qd7-g4 Nf4-e2+! discovery on White g4-queen from e4-queen
Eljanov vs Radjabov, 2008 
(E77) King's Indian, 33 moves, 0-1

21 d5-d6!,22 c4-c5!! Fischer's incredible blitz discovery combo
Fischer vs Uhlmann, 1970  
(C15) French, Winawer, 29 moves, 1-0

25 Be3-h6! unmasks White e2-queen, threatens loose g7-bishop
Fischer vs Michael Bedford, 1964 
(B06) Robatsch, 25 moves, 1-0

42 g4-g5+! unmasks White h5-queen attack on unde Black f3-queen
Bronstein vs Korchnoi, 1962 
(C83) Ruy Lopez, Open, 39 moves, 1-0

35 f5-f6+ discovery by White g6-queen on undef Black e4-queen
Carlsen vs Van Wely, 2006 
(B43) Sicilian, Kan, 5.Nc3, 34 moves, 1-0

40 Be5-c7! vacates e-file for 41 Re1-e8+ gaining time on queen
Fischer vs A Di Camillo, 1956 
(C78) Ruy Lopez, 41 moves, 1-0

20 Bd3xb5+! discovers an attack on undefended Black d5-queen
Korchnoi vs Tal, 1965 
(D48) Queen's Gambit Declined Semi-Slav, Meran, 34 moves, 1-0

35 Qe6-e7+ completes discovery chain with d6-rook, c5-queen
Kasparov vs Shirov, 2000 
(C11) French, 35 moves, 1-0

41 ... Rb3-d3! completes discovery chain with d5-knight,d7-rook
Alekhine vs Lasker, 1914 
(C68) Ruy Lopez, Exchange, 89 moves, 0-1

Ivanchuk vs Anand, 2008 
(E55) Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation, 16 moves, 1-0

21 - Nd5-e3! based on discovery 22 - Bg5xe3+ and 23 - Rg8xQg4
Shirov vs Karjakin, 2008 
(D44) Queen's Gambit Declined Semi-Slav, 36 moves, 1/2-1/2

29 Rb7xf7+!! Qf3xRf7 30 f2xRe3 Black f7-queen,h5-rook both hang
Carlsen vs Anand, 2008 
(A20) English, 48 moves, 1-0

33 ... Nd3xRf2+ clears 3rd rank with tempo for 34 ... Qg3xQc3
J Parker vs N Pert, 1999 
(A92) Dutch, 32 moves, 0-1

35 .. Nc4-e3! discoverer covers the g2-flight square of g1-king
E Piankov vs Psakhis, 1977 
(A64) Benoni, Fianchetto, 11...Re8, 35 moves, 0-1

22 .. Nf3-e1+! unmasks Black f6-queen,f8-rook against f2-square
H Ibrahim vs Sadvakasov, 1995 
(A65) Benoni, 6.e4, 22 moves, 0-1

25 Rg3-g7!! threat of Qd2xQd6 after Nf4-f5+ is a GM discovery
J Werle vs P K Wells, 2008 
(D39) Queen's Gambit Declined, Ragozin, Vienna Variation, 27 moves, 1-0

35 Nd6-f5!! traps Black f8-king on back rank and unmasks d-file
L Dominguez vs Morozevich, 2009 
(B90) Sicilian, Najdorf, 36 moves, 1-0

20 Nd4-f3 puts both Black d7-knight, Black g5-bishop en prise
Kramnik vs Topalov, 2006 
(E04) Catalan, Open, 5.Nf3, 38 moves, 1/2-1/2

20 Ne5xc6+ discovered attack with check on undef Black e6-queen
Short vs Timman, 2008 
(C67) Ruy Lopez, 40 moves, 0-1

Keres vs Smyslov, 1973 
(C97) Ruy Lopez, Closed, Chigorin, 41 moves, 0-1

18 ... Nc6-e5??, 30 ... Bb2-e5?? GM walks into simple discovery
Svidler vs P Nikolic, 2009 
(C03) French, Tarrasch, 36 moves, 1-0

Alekhine vs Janowski, 1924 
(A53) Old Indian, 40 moves, 1-0

37 Qxf8+! and 38 Qxg7+! are decoys to set up discovered attacks
Ivanchuk vs M Turov, 2006 
(E00) Queen's Pawn Game, 38 moves, 1-0

Keres vs Sliwa, 1955 
(C75) Ruy Lopez, Modern Steinitz Defense, 37 moves, 1-0

Aronian genius 42 Ra6-b6!! is all-time great discovered attack
Aronian vs Nakamura, 2010 
(E98) King's Indian, Orthodox, Taimanov, 9.Ne1, 53 moves, 1-0

24 Nd3xf4!
Kramnik vs Nakamura, 2010 
(A88) Dutch, Leningrad, Main Variation with c6, 44 moves, 1-0

15 ... Nc6xd4! wins pawn by discovery on undef White c4-bishop
J Smeets vs Ponomariov, 2011 
(C18) French, Winawer, 40 moves, 0-1

Ivanchuk vs Carlsen, 2011 
(A15) English, 29 moves, 1-0

Vaganian vs Karpov, 1969 
(E20) Nimzo-Indian, 53 moves, 1/2-1/2

40 Qf5-h7+! decoy into discovered mate 40 .. Kg8xQh7 41 Re4-e8#
V Iordachescu vs S Williams, 2013 
(B51) Sicilian, Canal-Sokolsky (Rossolimo) Attack, 40 moves, 1-0

Kiril D Georgiev vs B Gundavaa, 2013 
(E94) King's Indian, Orthodox, 60 moves, 0-1

22 Ne5-g6+ checks f8-king & uncovers attack on undef d6-queen
G Vescovi vs C A Martinez, 1991 
(B28) Sicilian, O'Kelly Variation, 25 moves, 1-0

Eljanov vs Y Kryvoruchko, 2013 
(D30) Queen's Gambit Declined, 38 moves, 0-1

20 Nf4-g6! exploits disc against undef e5-queen to win exchange
D Andreikin vs Khenkin, 2013 
(B12) Caro-Kann Defense, 27 moves, 1-0

29 ... Nb4-d5?? 30 Qg3-b3! 1-0 e6-rook + g8-king = discovery
D Andreikin vs Svidler, 2013 
(A45) Queen's Pawn Game, 30 moves, 1-0

26 Nc3xd5! is a wicked discovered attack by tactician Zhao Xue
Zhao Xue vs B Bok, 2014 
(D83) Grunfeld, Grunfeld Gambit, 44 moves, 1-0

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