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LPDO -> LOOSE PIECES DROP OFF! (GM DR J. NUNN)
Compiled by notyetagm
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Dr. John Nunn created this phrase about the danger of loose pieces; they tend to drop off the board to various tactics.

NM Heisman uses the term <Inadequately Guarded Pieces> to describe what I would call N attackers, N defenders <LOOSE>. But regardless of the nomenclature, one fact is undisputable:

LPDO - LOOSE PIECES DROP OFF!!!

2 loose pieces drop: 5 ... Bb4?? 6 Qa4+ and 8 ... Nxd5?? 9 Qb5+
S Dian Cheri vs Y Makhlouf, 2004 
(D20) Queen's Gambit Accepted, 9 moves, 1-0

42 Qg5+ and the loose c1-rook created by 40 ... Rc1?? drops off
Radjabov vs Svidler, 2006 
(D16) Queen's Gambit Declined Slav, 41 moves, 1-0

Loose Black b4-knight and c8-bishop? 24 Qc3! forks them both
Gligoric vs V Tukmakov, 1975 
(D86) Grunfeld, Exchange, 24 moves, 1-0

Undefended Black e2-rook drops off after 51 Qxh5+, 52 QxRe2
Leko vs Kramnik, 2007 
(C78) Ruy Lopez, 49 moves, 1-0

Loose White c2-knight costs White material after 28 ... Bf3xRd1
S R Burns-Mannion vs Nunn, 1992 
(B33) Sicilian, 52 moves, 1/2-1/2

White has loose a4-rook, e3-bishop, loses one after 24 - Qe8!
O Renet vs Nunn, 1989 
(C89) Ruy Lopez, Marshall, 22 moves, 0-1

6 ... d5xc4 makes Black d8-queen loose; she promptly vanishes
J Henningsen vs R Borik, 1979 
(A00) Uncommon Opening, 7 moves, 1-0

16 ... Nb6? gives Black a loose b6-knight and a loose h8-rook
Chandler vs W Beckemeyer, 1987 
(B80) Sicilian, Scheveningen, 33 moves, 1-0

32 Be1xa5? makes loose piece, drops off to FORK 34 ... Qe4-e1+
Saidy vs Fischer, 1968  
(A25) English, 35 moves, 0-1

42 Ra2? makes a loose piece, 42 - Bc2+! drives off its defender
J Trevelyan vs F Jenni, 2005 
(C68) Ruy Lopez, Exchange, 43 moves, 0-1

39 ... Rd8xd6?? makes a loose piece, drops off after 40 Qa7-b8+
Topalov vs Kasimdzhanov, 2007 
(E06) Catalan, Closed, 5.Nf3, 70 moves, 1-0

Loose White g6-knight vanishes after LINE-CLOSING 19 .. Nd6-e4!
Short vs Harikrishna, 2007 
(C01) French, Exchange, 19 moves, 0-1

31 ... Re8xe2 creates a LOOSE piece that =almost= drops off
Van Wely vs Judit Polgar, 2007 
(E17) Queen's Indian, 40 moves, 0-1

34 ... Rc2xNe2?? makes a loose rook, drops off to fork 35 Qg4+!
Keene vs Botvinnik, 1966  
(A04) Reti Opening, 35 moves, 1-0

Loose White g6-rook drops off if White tries to escape perp
Capablanca vs Alekhine, 1927 
(D63) Queen's Gambit Declined, Orthodox Defense, 38 moves, 1/2-1/2

37 .. Rf7-d7? d7-rook defended only by e5-knight, 38 f2-f4! RTG
Wang Hao vs Deepan Chakkravarthy J, 2007 
(D44) Queen's Gambit Declined Semi-Slav, 39 moves, 1-0

18 ... Ra8xa4?! loose Black a4-rook almost drops to queen fork
Ivanchuk vs Leko, 2007 
(C45) Scotch Game, 27 moves, 1/2-1/2

5 Nf3-g5?? Qd8-a5+ undefended g5-knight drops off to queen fork
I Farago vs V Bliumberg, 1994 
(D21) Queen's Gambit Accepted, 5 moves, 0-1

30 Qc1-g5+ undefended Black a5-knight drops off to queen fork
Kasparov vs Timman, 1994 
(C42) Petrov Defense, 30 moves, 1-0

32 ... Nb4-a2?? undefended Black a2-knight drops off to fork
Ivanchuk vs P Aderito, 2007 
(E10) Queen's Pawn Game, 36 moves, 1-0

Loose White d7-rook, 28 ... Bg7-d4+! interference wins material
Mamedyarov vs Carlsen, 2007 
(A57) Benko Gambit, 58 moves, 0-1

35 Rf6-c6?? defends White c5-bishop, 35 - Nc4-a5! drives it off
Karpov vs Kasparov, 1987 
(D87) Grunfeld, Exchange, 50 moves, 0-1

62 ... Qh8-h3+ loose White g3-knight drops off from queen fork
Petrosian vs Larsen, 1966 
(A16) English, 61 moves, 0-1

39 Bf6-g7+! Black e8-lady vanishes after f8-king driven off
Kasparov vs G Gonda, 1988 
(D32) Queen's Gambit Declined, Tarrasch, 38 moves, 1-0

29 .. Ba7-f2! White g3-knight drops off to fork on f2-flight sq
Gelfand vs Aronian, 2008 
(D11) Queen's Gambit Declined Slav, 30 moves, 0-1

38 - Bg7-c3+! 39 Qe1xBc3 loose queen drops off to remove guard
Topalov vs Kramnik, 1995 
(B57) Sicilian, 40 moves, 0-1

32 Bf4xd6! Qe7xBd6?? loose Black lady vanishes to remove guard
Capablanca vs Menchik, 1935 
(E85) King's Indian, Samisch, Orthodox Variation, 32 moves, 1-0

22 c4-c5!! undefended Black a6-bishop permits discovered attack
Fischer vs Uhlmann, 1970  
(C15) French, Winawer, 29 moves, 1-0

25 Be3-h6! loose Black g7-bishop makes this discovery possible
Fischer vs Michael Bedford, 1964 
(B06) Robatsch, 25 moves, 1-0

27 ... Bc8xBe6 28 Rb1xb7+ loose Black e6-bishop falls to RTG
Kasparov vs Korchnoi, 1995 
(D44) Queen's Gambit Declined Semi-Slav, 27 moves, 1-0

51 Qb5xb3?? makes loose White b3-queen, drops off to deflection
Eljanov vs Ivanchuk, 2008 
(E00) Queen's Pawn Game, 56 moves, 0-1

Loose White e4-rook drops off to 28 ... Nc4-e3! line-closing
Portisch vs Fischer, 1966 
(E45) Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation, 35 moves, 0-1

37 ... Re6-e2?? loose Black e2-rook drops off to a queen fork
Carlsen vs Korotylev, 2007 
(A56) Benoni Defense, 39 moves, 1-0

31 Re1-e2?? Ra1-a2+ 32 Kc2-d3 loose White e2-rook drops off
A Schoene vs Fischer, 1957 
(E70) King's Indian, 32 moves, 0-1

30 Re6-e8? loose White e8-rook drops off to interference shot
Taimanov vs Fischer, 1971 
(E97) King's Indian, 42 moves, 0-1

23 ... Qg5xg2?? loose Black g2-queen drops off to a deflection
Rubinstein vs Lasker, 1909  
(D30) Queen's Gambit Declined, 40 moves, 1-0

19 - Qg5-e5+ undefended White d4-knight drops to queen fork
Sinkel Th vs Keres, 1942
(C55) Two Knights Defense, 19 moves, 0-1

32 Qb5xb7?? makes loose queen, 32 - Rc2-c1+! deflects defender
B Franciskovic vs R Svaljek, 2001 
(A12) English with b3, 32 moves, 0-1

23 Qd5xa5?? undefended White d3-bishop,a5-rook drop to fork
W Napier vs Marshall, 1898 
(D08) Queen's Gambit Declined, Albin Counter Gambit, 23 moves, 0-1

20 ... Ne5xf3! plans 21 ... Qb6-f6+ to pick off undef a1-rook
Van Wely vs Aronian, 2008 
(D80) Grunfeld, 34 moves, 0-1

29 Qa4-c6+ drives off Black c7-king defender from loose d7-rook
Mamedyarov vs P Tregubov, 2006 
(D31) Queen's Gambit Declined, 28 moves, 1-0

13 Bc4xf7+! undefended Black b7-bishop drops off to queen fork
Zsuzsa Polgar vs E Ivanov, 1981 
(A57) Benko Gambit, 15 moves, 1-0

17 a4-a5! loose Black b4-knight drops off due to upcoming pin
K Kuderinov vs M Arnold, 2008 
(B90) Sicilian, Najdorf, 18 moves, 1-0

21 Re1-e4! undefended Black g4-bishop drops off to rook fork
A David vs Rozentalis, 2008 
(D20) Queen's Gambit Accepted, 21 moves, 1-0

43 ... Qh5-g5+ picks up the undefended White d8-rook with fork
C F Ekeberg vs Carlsen, 2003 
(E94) King's Indian, Orthodox, 42 moves, 0-1

32 .. h7-h5! drives off a defender of the loose White e5-knight
J Plenca vs Yifan Hou, 2008 
(C11) French, 32 moves, 0-1

29 Rb2-b1?? creates second loose piece, 29 - Qe7-e4! forks both
R Sander vs Carlsen, 2002 
(C01) French, Exchange, 29 moves, 0-1

39 Rg6-h6+! Bf4xRh6 loose h6-bishop soon drops off to skewer
Kramnik vs E Alekseev, 2008 
(A37) English, Symmetrical, 41 moves, 1-0

Loose White f4-bishop drops off to the skewer 33 ... Rb6-b4!
Zagrebelny vs Morozevich, 2003 
(C03) French, Tarrasch, 33 moves, 0-1

22 .. Rf8-h8? 23 Qf3-h3+! loose h8-rook drops off to queen fork
Marshall vs Spielmann, 1908 
(A83) Dutch, Staunton Gambit, 22 moves, 1-0

Tal vs K Klaman, 1957 
(B61) Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2, 34 moves, 1-0

50 Ke1-e2 2-2 loose Black d5-bishop drops off to remove guard
A Gupta vs A Braun, 2008 
(D15) Queen's Gambit Declined Slav, 50 moves, 1-0

20 Re3-e5 forks the undef a5-knight and the undef f5-bishop
Anand vs Kramnik, 2005 
(C42) Petrov Defense, 20 moves, 1-0

28 Qd7-d4?? Re2-e1+! fork-overload trick strikes yet again!
S Maus vs Tal, 1990 
(A30) English, Symmetrical, 28 moves, 0-1

22 Qa8-a7! undef Black f2-knight drops off to fork with e7-sq
Tal vs Larsen, 1979 
(B63) Sicilian, Richter-Rauzer Attack, 22 moves, 1-0

48 ... Ne5-c4?? 49 Bf3xd5+! loose c4-knight drops off to RTG
Morozevich vs J Smeets, 2009 
(D12) Queen's Gambit Declined Slav, 49 moves, 1-0

21 c2-c4 loose Black f6-bishop drops off to remove guard tactic
V Zvjaginsev vs A Belozerov, 2006 
(B12) Caro-Kann Defense, 21 moves, 1-0

34 Ne3xc4?? loose c4-knight drops to queen fork 34 ... Qa5-c7+!
W So vs Holzke, 2009 
(C78) Ruy Lopez, 42 moves, 0-1

12 Be2-f3?? leaves White c4-knight undefended for disc attack
P Skovgaard vs Carlsen, 2001 
(A56) Benoni Defense, 37 moves, 0-1

34 .. Qb4-d2! loose White c1-rook,g5-knight cost White material
Tal vs Geller, 1966 
(C84) Ruy Lopez, Closed, 42 moves, 0-1

22 Rf1xf7+! l1-1 loose Black b7-bishop drops off to queen fork
Rublevsky vs Navara, 2007 
(C28) Vienna Game, 35 moves, 1-0

38 Rd1xd6?? newly undefended d6-rook drops off to knight fork
Bakhmatov vs E Ghaem Maghami, 2005 
(B87) Sicilian, Fischer-Sozin with ...a6 and ...b5, 38 moves, 0-1

35 ... Qg2xBe4+ undefended White f5-knight drops to queen fork
Anand vs Aronian, 2009 
(D47) Queen's Gambit Declined Semi-Slav, 53 moves, 0-1

39 Re8-e6+ undef Black d6-bishop drops to rook fork with check
A Bitalzadeh vs Nijboer, 2009 
(A85) Dutch, with c4 & Nc3, 39 moves, 1-0

60 Rf6-g6+ undef Black g4-bishop drops to rook fork with check
D Howell vs Nijboer, 2009 
(B22) Sicilian, Alapin, 60 moves, 1-0

35 ... Rd8xd6?? loose Black d6-rook drops off to a queen fork
Svidler vs P Nikolic, 2009 
(C03) French, Tarrasch, 36 moves, 1-0

22 Nd3-c5! 1-1 loose Black c2-rook drops off to interference
V Belov vs Wang Hao, 2009 
(B52) Sicilian, Canal-Sokolsky (Rossolimo) Attack, 49 moves, 1-0

15 ... Bc8-a6?? loose bishop drops off to RTG shot 16 Bd6-b4!
B Grachev vs Vaganian, 2009 
(D37) Queen's Gambit Declined, 38 moves, 1-0

32 ... h6-h5?? newly undefended Black g5-rook drops to Q fork
R Ruck vs Krasenkow, 2001 
(D38) Queen's Gambit Declined, Ragozin Variation, 33 moves, 1-0

31 .. Qb5-b3! White has two undefended rooks, loses one of them
G Sargissian vs Li Chao, 2009 
(A16) English, 31 moves, 0-1

78 ... g5-g4+ drives off White h3-king from 1-1 loose h2-queen
Rublevsky vs Areshchenko, 2009 
(B74) Sicilian, Dragon, Classical, 78 moves, 0-1

19 ... Nb4xd5?? loose Black d5-knight drops to queen fork
Adams vs C G Ward, 2001 
(A07) King's Indian Attack, 49 moves, 1-0

35 Ra6xNf6! loose d5-queen costs Black a piece by remove guard
Bologan vs S Brunello, 2009 
(C84) Ruy Lopez, Closed, 35 moves, 1-0

44 ... Re2-e3?? undef Black e3-rook drops to Q fork 46 Qa8-a7+
Y Drozdovskij vs Karjakin, 2010 
(D45) Queen's Gambit Declined Semi-Slav, 45 moves, 1-0

48 Qe4-f4+ wins the loose Black f8-rook by a fork with check
Ruan Lufei vs Yifan Hou, 2010 
(B81) Sicilian, Scheveningen, Keres Attack, 47 moves, 1-0

23 ... b7-b5 0-1 loose White e4-bishop falls to remove guard
Karjakin vs Carlsen, 2009 
(B20) Sicilian, 23 moves, 0-1

McShane vs W So, 2011 
(B12) Caro-Kann Defense, 40 moves, 1-0

29 Bc5-e7 drives off d8-rook dfndr from LOOSE,pinned d7-knight
Sasikiran vs Anand, 2011 
(D45) Queen's Gambit Declined Semi-Slav, 48 moves, 1/2-1/2

N Zhukova vs Ju Wenjun, 2012 
(E71) King's Indian, Makagonov System (5.h3), 41 moves, 1/2-1/2

32 Rd1-d5! loose c5-bishop drops off to a fork against h5-sq
Koneru vs Qi Guo, 2012 
(D08) Queen's Gambit Declined, Albin Counter Gambit, 40 moves, 1-0

40 Ra3-a1?? leaves the a1-rook unprotected, drops to queen fork
Ivanchuk vs Mamedyarov, 2013 
(E10) Queen's Pawn Game, 43 moves, 0-1

25 ... Rb2-a2?? unpro rook drops off to queen fork 27 Qb8-b1+
Kramnik vs Wang Hao, 2013 
(D16) Queen's Gambit Declined Slav, 26 moves, 1-0

33 Rd5xf5?? loose f5-rook drops to queen fork 33 .. Qb2-b1+ 0-1
L Galojan vs D Cornette, 2013 
(D02) Queen's Pawn Game, 33 moves, 0-1

24 ... Qa5-c3! forks both the unprotected b2-rook and g3-knight
E Bronnikova vs J Zawadzka, 2013 
(C92) Ruy Lopez, Closed, 38 moves, 0-1

4 Nf3xe5?? Qd8-a5+! queen fork picks up the unprotected knight
R F Combe vs W Hasenfuss, 1933 
(A43) Old Benoni, 4 moves, 0-1

18 Rd1xNd4! Bc5xRd4 19 Qf3-g4+ picks up the loose d4-bishop
I Bulmaga vs A Rakhmangulova, 2013 
(B01) Scandinavian, 36 moves, 1-0

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