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Compiled by Korora

Under construction, will be another hundred games with awful blunders.

See also Game Collection: ARGH!

9. Ng5 weakened things, and there are doubts r.e. the followup.
E D'Andre vs De Vere, 1867 
(A02) Bird's Opening, 14 moves, 0-1

Unguarding the back rank
J S Stanley vs C G Heydon, 1872 
(C42) Petrov Defense, 28 moves, 0-1

40. ... Re1?
Bird vs W Pollock, 1889  
(B01) Scandinavian, 56 moves, 1-0

Bishop exchange -- very bad idea
M Porges vs Winawer, 1892 
(B06) Robatsch, 22 moves, 0-1

Resigned immediately after 44.c4??
Lasker vs F R Gittins, 1897 
(C45) Scotch Game, 44 moves, 0-1

Ceci n'est pas un Amos Burn.
Marshall vs Burn, 1900  
(D55) Queen's Gambit Declined, 18 moves, 1-0

With the K-side weakened, the Pawn hunt loses to a King hunt.
L Karpinski vs Marshall, 1901 
(C43) Petrov, Modern Attack, 27 moves, 0-1

"Take my wife--Please!"
K B Finn vs W C Palmer, 1903 
(D08) Queen's Gambit Declined, Albin Counter Gambit, 10 moves, 0-1

When setting up a mate net, still mind your opponent's threats!
Duras vs A E Post, 1904 
(C77) Ruy Lopez, 23 moves, 1-0

Queened the Pawn--and then threw it away.
Dus Chotimirsky vs Alapin, 1908 
(D02) Queen's Pawn Game, 78 moves, 1-0

Hanging a piece as recapturing leads to back-rank mate
Tarrasch vs Lasker, 1908 
(C49) Four Knights, 26 moves, 0-1

Too greedy in the opening
J Krejcik vs Baumgartner, 1914 
(C40) King's Knight Opening, 7 moves, 1-0

Blundered away the Knight
J Mieses vs Euwe, 1921 
(C45) Scotch Game, 12 moves, 1-0

Poaching crows--a terrible mistake
H Walkerling vs Hanssen, 1928 
(B40) Sicilian, 10 moves, 1-0

Opening errors walk the White K into Black's masterful net.
Glucksberg vs Najdorf, 1929 
(A85) Dutch, with c4 & Nc3, 22 moves, 0-1

5.Nc3 did nothing to parry My Little Checkmate.
M Warren vs Jan Selman, 1930 
(B20) Sicilian, 5 moves, 0-1

Watch out for peer pressure!
A Ebralidze vs Ragozin, 1937 
(E60) King's Indian Defense, 45 moves, 0-1

The P isn't truly pinned if capturing the R is a blunder.
V G Kirillov vs Blankstein, 1938 
(C04) French, Tarrasch, Guimard Main line, 10 moves, 0-1

exd3?? == falling for one fast-acting poisoned Pawn.
H Haberditz vs Hysek, 1938 
(A04) Reti Opening, 8 moves, 1-0

Black's QBP was a golden dart frog for White's Q!
W Adams vs G Kramer, 1946 
(B12) Caro-Kann Defense, 9 moves, 0-1

Petrosian has Bronstein skunked--and blunders away his Q
Petrosian vs Bronstein, 1956 
(E66) King's Indian, Fianchetto, Yugoslav Panno, 36 moves, 0-1

Missed chance to refute sac, then missed chance to draw.
A G Murphy vs C Witte, 1957 
(B20) Sicilian, 23 moves, 0-1

19. Kh1 didn't work, then a later Queen trade lost fast.
M Tamburini vs E Paoli, 1957 
(A44) Old Benoni Defense, 30 moves, 0-1

Opening enemy lines for a mate in two
Sliwa vs B Malich, 1957 
(A43) Old Benoni, 45 moves, 0-1

Naturally, the first Chess computer was a total patzer.
Bronstein vs M20, 1963 
(C34) King's Gambit Accepted, 23 moves, 1-0

Knight-snatching enables checkmate net.
A Matanovic vs J H Donner, 1965 
(C70) Ruy Lopez, 21 moves, 0-1

Blue-bearded Pawn-snatching
D Walker vs Almeida, 1965 
(C19) French, Winawer, Advance, 11 moves, 1-0

No time to prepare a fianchetto!
P Pantelidakis vs F Rhine, 1974 
(A02) Bird's Opening, 6 moves, 0-1

Wrong stable for that horse!
A Seppelt vs Leganki, 1950 
(C07) French, Tarrasch, 6 moves, 0-1

Pawn-snatching into a two-pin combination.
Robatsch vs Jansa, 1974 
(A10) English, 14 moves, 1-0

Forty minutes of thought for THAT sort of blunder!?
Gligoric vs Ulf Andersson, 1974 
(E44) Nimzo-Indian, Fischer Variation, 5.Ne2, 49 moves, 1-0

4. d4 parried mate aspect but not the rest of the threat.
A Riemslag vs P Cameron, 1978 
(A02) Bird's Opening, 9 moves, 0-1

In the opening, watch out for threats to King Bishop 2!
J Henningsen vs R Borik, 1979 
(A00) Uncommon Opening, 7 moves, 1-0

Enabled a disastrous fork with check on move 3
Z Djordjevic vs M Kovacevic, 1984 
(A45) Queen's Pawn Game, 3 moves, 0-1

A fork of King and Rook that did nada to address White's attack
G Minchev vs B Ganchev, 1986 
(B02) Alekhine's Defense, 13 moves, 1-0

11. Na3 did nothing to stop the checkmate.
B Wall vs S Millimaci, 1988 
(B22) Sicilian, Alapin, 11 moves, 0-1

Yes the Queen was left en prise/Yes Black right away did seize
R Suess vs O Zenker, 1989 
(A80) Dutch, 7 moves, 0-1

This was an easily-won K+P+P vs. K endgame, right?
Dreev vs R Wessman, 1990 
(D45) Queen's Gambit Declined Semi-Slav, 77 moves, 1/2-1/2

What sort of opening play is THAT!?
M Mas vs R Guerrero, 1991 
(C00) French Defense, 12 moves, 1-0

That horse left Her Majesty badly overworked.
R Gonzalez vs Tal, 1992 
(B32) Sicilian, 26 moves, 0-1

Uh, that Bishop was guarding the mate square.
Karpov vs Bareev, 1994 
(C07) French, Tarrasch, 36 moves, 1-0

For Pete's sake, don't castle onto a pawnless side!
Ivanchuk vs Topalov, 1996 
(B81) Sicilian, Scheveningen, Keres Attack, 23 moves, 0-1

Leaving the Rook en prise
Piket vs Anand, 1998 
(D86) Grunfeld, Exchange, 60 moves, 1-0

Hangs a Bishop for a Pawn
Nisipeanu vs Ivanchuk, 1999 
(C45) Scotch Game, 14 moves, 1-0

Leading with the Lady against a former World Champion?
Boris Becker vs Kasparov, 2000 
(C20) King's Pawn Game, 18 moves, 0-1

Castling into it
U Capo Vidal vs E Gonzalez Chavez, 2001 
(A54) Old Indian, Ukrainian Variation, 4.Nf3, 19 moves, 1-0

Bye-bye Queen.
Bacrot vs M Vukic, 2004 
(A46) Queen's Pawn Game, 29 moves, 1-0

Developing the Queen directly into the line of fire
A Gautam vs J Worell, 2004 
(C65) Ruy Lopez, Berlin Defense, 8 moves, 1-0

16. ... Ne3?? turns White's opening blunder into a sac.
A Smirnov vs V Shepelev, 2005 
(A00) Uncommon Opening, 22 moves, 1-0

Carlsen vs Bareev, 2005 
(B12) Caro-Kann Defense, 46 moves, 0-1

Critical failures on both their spot checks.
Wen Yang vs Z Almasi, 2007 
(A20) English, 39 moves, 0-1

A N move in self-offense--B cannot now capture K-&-R-forking N.
Shirov vs Kramnik, 2010 
(E20) Nimzo-Indian, 38 moves, 1-0

4. Bg5?? and Black gets to kick White's K around.
M Murara vs I Scott, 2012 
(A51) Budapest Gambit, 13 moves, 0-1

131.Rc4?? 131.Ka2 with the perpetual would have been better.
A Giri vs Karjakin, 2014 
(A35) English, Symmetrical, 131 moves, 0-1

Taking the Pawn did nothing to stop the fork.
Sengupta vs Srinath Narayanan, 2018 
(A45) Queen's Pawn Game, 10 moves, 0-1

Blundered away a vital Bishop in the opening.
Ameyalli Avila Fraire vs S Logothetis, 2019 
(A07) King's Indian Attack, 11 moves, 1-0

Dodged the 77. a6? trap, but blundered a different way.
Nepomniachtchi vs Anand, 2019 
(A21) English, 77 moves, 0-1

150. ... Kc1 loses just four moves away from a 50-move draw
V Kovalev vs D Gavrilescu, 2019 
(C07) French, Tarrasch, 152 moves, 1-0

A fatal misclick about to cost the Queen
Nepomniachtchi vs Carlsen, 2020 
(C60) Ruy Lopez, 38 moves, 1-0

Marshall's 1940 P-pushing opening against Ragosin this wasn't.
NN vs F Rhine, 2020 
(A40) Queen's Pawn Game, 13 moves, 0-1

White missed 61.Ka4! winning.
A Giri vs A Firouzja, 2021 
(C11) French, 67 moves, 1/2-1/2

61 games

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