37 Re4xd4! Black d6-queen cannot defend *both* c7-rook, d4-pawn Topalov vs Kamsky, 2009  (C07) French, Tarrasch, 55 moves, 1-0 31 Rf1-g1! Black c5-bishop,g6-queen defend e7-,h6-mate squares D Stets vs M Oleksienko, 2009  (B80) Sicilian, Scheveningen, 30 moves, 1-0 56 Rc6-c4+! Black b5-pawn cannot block a4-e8 diagonal,defend c4 M Gurevich vs R Ovetchkin, 2007  (D11) Queen's Gambit Declined Slav, 54 moves, 1/2-1/2 21 ... Bd6xg3! White f2-pawn cannot defend *both* e3-,g3-pawns V Chuchelov vs Shirov, 2009  (D45) Queen's Gambit Declined Semi-Slav, 41 moves, 0-1 26 Re1-e2! Black d2-queen cannot attack e2-sq, defend d6-sq Topalov vs Shirov, 2009  (D44) Queen's Gambit Declined Semi-Slav, 30 moves, 1/2-1/2 35 ... Qc6-c5?? leaves Black f7-king to guard e6-,g8-squares Nakamura vs Ponomariov, 2009  (B81) Sicilian, Scheveningen, Keres Attack, 36 moves, 1-0 50 Nc4-e5! Black e7-rook cannot BLOCK 7th rank, DEFEND e5-sq Aronian vs E Inarkiev, 2009  (D45) Queen's Gambit Declined Semi-Slav, 57 moves, 1-0 14 .. Bf8-a3!? White b2-pawn cannot protect a3, interpose to a1 Shirov vs Salov, 1997  (B01) Scandinavian, 29 moves, 1-0 47 ... Bd5xg2! White f2-king cannot defend g2-pawn, e2-base Adams vs Radjabov, 2009  (B30) Sicilian, 47 moves, 0-1 24 Bc5-d6?? Rd5xBd6! e5-pawn cannot protect d6, interpose b2 M Gretzer vs Leko, 1990  (D85) Grunfeld, 24 moves, 0-1 31 e3-e4! Black d5-pawn cannot both blockade d5, protect e4 Carlsen vs Kramnik, 2009  (E32) Nimzo-Indian, Classical, 58 moves, 1/2-1/2 43 ... Rb7xd7! White b5-bishop cannot protect d7-pawn, e2-rook Topalov vs Aronian, 2008  (D47) Queen's Gambit Declined Semi-Slav, 72 moves, 1-0 42 ... Re8-f8! White c5-bishop cannot interpose c3, protect f8 Morozevich vs Kramnik, 2009  (E32) Nimzo-Indian, Classical, 45 moves, 0-1 26 Qd8xRc8! Black f8-rook cannot protect c8-rook,f7-mate square Anand vs Ivanchuk, 2009  (C16) French, Winawer, 26 moves, 1-0 40 g4xf5! Black d7-bishop cannot attack c6, protect f5 R Mamedov vs M Bartel, 2009  (C05) French, Tarrasch, 54 moves, 1-0 69 h6-h7! h5-rook cannot protect h8-promo sq, attack g5-pawn Carlsen vs Karjakin, 2009  (D15) Queen's Gambit Declined Slav, 70 moves, 1-0 40 Nf4-d5? Black f6-knight "overloaded" protecting d5,e4-square J Polgar vs Karpov, 2009  (B13) Caro-Kann, Exchange, 47 moves, 1-0 39 ... Rd3xh3+!! White g2-pawn cannot defend f3-base,h3-pawn I Morovic Fernandez vs Rublevsky, 2009  (D20) Queen's Gambit Accepted, 39 moves, 0-1 32 Rg1-g6!! Black f7-queen,h7-pawn meet threat to other squares J Polgar vs Gelfand, 2009  (C24) Bishop's Opening, 32 moves, 1-0 26 ... Nf4-h3+!! White f3-queen cannot protect h3-,f2-squares A Galliamova vs Rublevsky, 1998  (D20) Queen's Gambit Accepted, 26 moves, 0-1 33 Nc7-e6+! Black f7-pawn cannot interpose e7-sq, protect e6-sq Ivanchuk vs Topalov, 2004  (C45) Scotch Game, 48 moves, 1-0 32 Re1-e2?? Nd5-e3+!! White f2-pawn cannot protect e3, block f1 Carlsen vs Nakamura, 2009  (D17) Queen's Gambit Declined Slav, 45 moves, 1/2-1/2 31 Rf1xf6! Black g7-king cannot protect *both* f6-,h6-squares Smyslov vs Geller, 1951  (B26) Sicilian, Closed, 6.Be3, 48 moves, 1-0 16 Nf3-g5! threatens Ng5xh7!, Black f6-knight protects g4-bisho Morphy vs Anderssen, 1858   (B01) Scandinavian, 25 moves, 1-0 96 ... c2-c1=Q! c8-rook cannot protect c1-promo,f8-mate squares I Kan vs Korchnoi, 1951  (A04) Reti Opening, 96 moves, 0-1 28 ... Qd8-d3! f1-bishop cannot protect *both* g2-mating,d3-sq Gelfand vs Nakamura, 2010  (E97) King's Indian, 33 moves, 0-1 29 - Rb7xb2! White f2-rook cannot protect *both* b2-,f3-squares K Haznedaroglu vs Nakamura, 2010  (B62) Sicilian, Richter-Rauzer, 33 moves, 0-1 30 ... Bd7xh3! White g2-pawn must protect f3-forking square Nisipeanu vs Giri, 2010  (C42) Petrov Defense, 31 moves, 0-1 27 Nf8-e6! Black f6-queen cannot protect *both* e6-sq,d4-bishop Kramnik vs Nakamura, 2010  (A88) Dutch, Leningrad, Main Variation with c6, 44 moves, 1-0 33 Qg5-f6+! Black e7-pawn protects f6-, interposes e8-empty sqs S Zhigalko vs A Iljushin, 2010  (B31) Sicilian, Rossolimo Variation, 33 moves, 1-0 29 - Rd8-d3+! e2-bishop cannot defend h4 by pinning, d3 protect Portisch vs J Pinter, 1984  (D41) Queen's Gambit Declined, Semi-Tarrasch, 33 moves, 0-1 23 Rc4xc5! Black c6-queen cannot protect c5-pawn,b7-checking sq Le Quang Liem vs Naiditsch, 2010  (D39) Queen's Gambit Declined, Ragozin, Vienna Variation, 35 moves, 1/2-1/2 28 Rd3xBd5! e6-pawn cannot protect d5-bishop,f5-tactical base Shulman vs Van Wely, 2009  (D44) Queen's Gambit Declined Semi-Slav, 32 moves, 1-0 14 ... Nd5xf4! White g3-pawn cannot protect f4-pawn,h4-base sq B Savchenko vs Aronian, 2010  (C45) Scotch Game, 34 moves, 0-1 33 ... Ne5-f3+! 0-1 White c3-rook,g2-pawn defend other squares M Bluvshtein vs D Andreikin, 2011  (E46) Nimzo-Indian, 33 moves, 0-1 19.Ng5! Taking advantage of the overloaded bishop to irrevocabl E Najer vs E A Levin, 2011  (C05) French, Tarrasch, 29 moves, 1-0 Le Quang Liem vs Ponomariov, 2011  (D35) Queen's Gambit Declined, 71 moves, 1-0 36 .. Rb4xb3! White c2-queen cannot protect b3-pawn,d2-check sq Carlsen vs Nepomniachtchi, 2011  (B52) Sicilian, Canal-Sokolsky (Rossolimo) Attack, 40 moves, 1/2-1/2 30 Rh6-h8+! Black g7-bishop cannot shield g8-sq, protect h8-sq Tal vs Benko, 1959  (B27) Sicilian, 30 moves, 1-0 21 .. Ba6-d3! White c2-pawn cannot blockade c2-, protect d3-sqs F Pancevski vs S Sjugirov, 2012  (B23) Sicilian, Closed, 44 moves, 0-1 Sutovsky vs Z Kozul, 2012  (B67) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7, 36 moves, 1-0 S Milliet vs C Forestier, 2012  (C11) French, 20 moves, 1-0 42. Rxc6! 1–0 Topalov vs Morozevich, 2012  (C11) French, 42 moves, 1-0 32.Nxf5! gxf5 33.Qxf5! 1–0 Karjakin vs Grischuk, 2012  (B12) Caro-Kann Defense, 33 moves, 1-0 H Melkumyan vs C Balogh, 2013  (D10) Queen's Gambit Declined Slav, 30 moves, 1-0 Ivanchuk vs Kasparov, 1997  (E80) King's Indian, Samisch Variation, 36 moves, 1-0 33 Qd3xRe2! g4-queen must protect both e2-rook & c8-mating sq Koneru vs A Stefanova, 2012  (B14) Caro-Kann, Panov-Botvinnik Attack, 49 moves, 1-0 17 Na4-b6! b7-queen cannot protect *both* b6-sq & d7-mating sq Shankland vs Y Wang, 2013  (B49) Sicilian, Taimanov Variation, 41 moves, 0-1 35 ... Ng4xh2+! e2-queen cannot protect h2-pawn & c4-forking sq L J Bernal Moro vs Sengupta, 2013  (A09) Reti Opening, 37 moves, 0-1 Motylev vs H Wang, 2012  (B94) Sicilian, Najdorf, 19 moves, 1-0 Y Zhou vs J Burnett, 2013  (D31) Queen's Gambit Declined, 38 moves, 1-0 41 ... Ne4-g3! 0-1 f3-rook cannot interpose on f1 & protect g3 J Aagaard vs A Ismagambetov, 2012  (C45) Scotch Game, 41 moves, 0-1 27 .. Rd8-d1+! overload: d1 & e4 e1-rooks protects e4-mating sq X Zhao vs E Danielian, 2011  (D17) Queen's Gambit Declined Slav, 58 moves, 0-1 29 ... Nb4-d5?? White f4-knight overloaded: e6-rook & d5-square D Andreikin vs Svidler, 2013  (A45) Queen's Pawn Game, 30 moves, 1-0 38 Re1xe6! overloaded: e6 & g6 X Bu vs S Tologontegin, 2010  (D30) Queen's Gambit Declined, 39 moves, 1-0 Koneru vs M Muzychuk, 2015  (D45) Queen's Gambit Declined Semi-Slav, 41 moves, 0-1 56 games