View source for Duncan Suttles

{{Short description|Canadian chess grandmaster (born 1945)}}
{{Infobox chess biography
| name        = Duncan Suttles
| image       = 
| caption     = 
| full_name   = <!-- if different -->
| country     = {{flagu|Canada}}
| birth_date  = {{Birth-date and age|21 December 1945}}
| birth_place = [[San Francisco]], California
| title       = {{ubl|class=nowrap|[[FIDE Grandmaster]] (1973)|[[ICCF Grandmaster]] (1982)}}
| rating      = [https://www.olimpbase.org/Elo/player/Suttles,%20Duncan.html 2420] (January 1985)
| peakrating  = 2485 (July 1973)
| peakranking = No. 94 (July 1973)
| ICCF_rating = [https://www.iccf.com/player?id=90074&tab=3 2632] (January 1992)
}}

'''Duncan Suttles''' (born 21 December 1945) is a Canadian [[Grandmaster (chess)|chess grandmaster]].<ref>{{Cite web |last=Day |first=Lawrence |date=2008-07-08 |title=Duncan Suttles |url=https://www.thecanadianencyclopedia.ca/en/article/duncan-suttles |access-date=2023-03-13 |website=The Canadian Encyclopedia}}</ref> Canada's second grandmaster after [[Daniel Yanofsky|Abe Yanofsky]], Suttles was recognized internationally for the originality of his strategic play in the mid-1960s and 70s. He retired from competitive chess in 1985.<ref>{{Cite web |last=Jamal |first=Suleman |date=February 1994 |title=Interview of Duncan Suttles, Grandmaster |url=http://www.chessbc.ca/suttles.html |access-date=2023-03-13 |website=chessbc.ca}}</ref><ref>{{Cite web |last1=Lubin |first1=Gus |last2=Cortez |first2=Samantha |date=2012-06-24 |title=28 Executives Who Are Excellent At Chess |url=https://www.businessinsider.com/29-executives-who-are-exceptional-at-chess-2012-7#duncan-suttles-20 |access-date=2023-03-13 |website=Business Insider}}</ref>

== Early years ==

Born in San Francisco, Suttles moved to Canada at age 8 when his father began teaching at the University of British Columbia. Mentored by [[Elod Macskasy]], he was of national master strength by his mid-teens, which was unusual for Canadian chess at that time.<ref name=":1">{{Cite book |last1=Harper |first1=Bruce |title=Chess on the Edge |last2=Seirawan |first2=Yasser |publisher=Chess'n Math Association |year=2008}}</ref> 

Suttles was 15 when made his first appearance in the Closed [[Canadian Chess Championship]] at [[Brockville]], 1961, scoring 3/11.<ref>{{Cite web |title=56th Canadian Championship, Brockville, 1961 |url=https://www.bcchesshistory.com/canchslate.html |access-date=2023-03-13 |website=bcchesshistory}}</ref> Suttles won the [[British Columbia]] Championship in 1963 and 1966.<ref>{{Cite web |title=BC Champions |url=https://www.chess.bc.ca/bcchamps.php |access-date=2023-03-13 |website=BC Chess Federation}}</ref> In his second Closed, he scored 8½ from 15 games at [[Winnipeg]] 1963, finishing just above the middle of the strongest and youngest field yet seen in a Canadian final. Suttles tied for 3rd–5th places in the 1964 [[Canadian Open Chess Championship]] in [[Toronto]], and as the top junior, qualified for the 1965 [[Junior World Chess Championship|World Junior Chess Championship]].<ref name="autogenerated3">''Chess on the Edge'', p. xii.</ref> He took part in the Gijon International Chess Tournament (1965), placing 2nd behind [[Luis Marcos Bronstein|Luis Bronstein]].<ref>{{Cite book |last1=Mendez |first1=Pedro |url=https://mcfarlandbooks.com/product/the-gijon-international-chess-tournaments-1944-1965/ |title=The Gijon International Chess Tournaments |last2=Mendez |first2=Solar |publisher=McFarland |year=2019 |isbn=978-1-4766-7659-3 |pages=189}}</ref> At home in Vancouver for the 1965 Canadian Championship, Suttles scored 8/11, finishing second behind eight-time champion [[Daniel Yanofsky|Abe Yanofsky]].  As a dual citizen (he became a Canadian citizen in 1966), Suttles was also eligible for the [[US Chess Championship|US Championship]] in [[New York City]] in 1965–66, where he finished last with 2½/11; [[Bobby Fischer]] won.<ref>{{Cite news |date=January 1966 |title=Fischer's Seventh Title |pages=3 |work=Chess Life |url=http://uscf1-nyc1.aodhosting.com/CL-AND-CR-ALL/CL-ALL/1966/1966_01.pdf |access-date=2023-03-13}}</ref>

Suttles attended the University of British Columbia and represented the school in inter-university chess competition.<ref>''Chess on the Edge'', pp. 768–69.</ref> He earned his undergraduate degree in [[mathematics]] and began to study for a doctorate, but eventually quit the program to work in private industry.<ref>{{Cite news |last=Berry |first=Jonathan |date=1980-07-05 |title=What ever happened to Duncan Suttles? |pages=36 |work=Ottawa Citizen |url=https://www.newspapers.com/image/42368747/?clipping_id=264637&fcfToken=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmcmVlLXZpZXctaWQiOjQyMzY4NzQ3LCJpYXQiOjE2Nzg2NTUyMzUsImV4cCI6MTY3ODc0MTYzNX0.zJXPYJq--S4Z_1tNQl5A168z4CTmposEktQ5IUFYOrA |url-access=limited |access-date=2023-03-13}}</ref> He married his wife Dobrila in 1968.

== Represents Canada ==

Suttles represented Canada at the Junior [[World Chess Championship]], [[Barcelona]], 1965. He scored 1½/4 playing in a strong preliminary group which included the eventual winner, [[Bojan Kurajica]].<ref>{{Cite web |title=8th World Junior Championship: Barcelona, 1965 |url=https://www.olimpbase.org/ind-junior/wu20-1965.html |access-date=2023-03-13 |website=OlimpBase: The Encyclopedia of Team Chess}}</ref> He did win the B final, however, ahead of [[Raymond Keene]].<ref>''Chess on the Edge'', p. xiii.</ref> He represented Canada in the qualifying [[Interzonal]] event for the [[World Chess Championship]] at [[Sousse]], 1967, scoring 9½/21 for 15th place.<ref>{{Cite web |title=World Chess Championship: 1967 Sousse Interzonal Tournament |url=https://www.mark-weeks.com/chess/6769$iix.htm |access-date=2023-03-13 |website=markweeks.com}}</ref><ref>{{Cite news |last=Horowitz |first=Al |date=1968-01-04 |title=Chess: Korchnoi-Suttles Game Was A Grand Style Cliff-Hanger |pages=34 |work=New York Times |url=https://www.nytimes.com/1968/01/04/archives/chess-korchnoisuttles-game-was-a-grand-style-cliffhanger.html |url-access=subscription |access-date=2023-03-13}}</ref> Suttles won the [[Canadian Chess Championship]] held at [[Pointe-Claire]] 1969, after a playoff match against [[Zvonko Vranesic]] in [[Toronto]], which Suttles won 2½–1½.<ref name=":1" /> This qualified him for the [[Interzonal]] at [[Palma de Mallorca]], 1970, where he tied for 15th-16th place with a 10/23 score.<ref>{{Cite news |last=Horowitz |first=Al |date=1970-12-10 |title=Chess: Suttles and Smyslov Draw After Complex Middle Game |pages=44 |work=New York Times |url=https://timesmachine.nytimes.com/timesmachine/1970/12/10/issue.html |url-access=subscription |access-date=2023-03-13}}</ref><ref>{{Cite web |title=Palma de Mallorca Interzonal Tournament |url=https://www.chessgames.com/perl/chess.pl?tid=79415 |access-date=2023-03-13 |website=chessgames.com}}</ref>

== Olympiad stalwart ==

At 18, Suttles was chosen for the Canadian Olympiad team in [[16th Chess Olympiad|Tel Aviv, 1964]], the first of his eight appearances, including six in a row over a period of 20 years.<ref>{{Cite web |title=Duncan Suttles - Men's Chess Olympiads |url=https://www.olimpbase.org/players/tjrtx31f.html |access-date=2023-04-19 |website=OlimpBase}}</ref> He frequently played a large number of games in these team events, near the maximum. His totals for Canada in the Olympiads were +49 &minus;30 =43, for 57.8 percent. He also played Board 1 on the Canadian team at the 1971 Student Olympiad that won the bronze medal.<ref>{{Cite web |title=18th World Student Team Chess Championship: Mayagüez 1971 |url=https://www.olimpbase.org/1971y/1971can.html |access-date=2023-04-22 |website=OlimpBase: The Encyclopedia of Team Chess}}</ref>

* [[16th Chess Olympiad|Tel Aviv 1964]]: 1st reserve, 5½/10, +4 &minus;2 =3;
* [[17th Chess Olympiad|Havana 1966]]: 4th board, 10/18, +8 &minus;5 =5;
* [[18th Chess Olympiad|Lugano 1968]]: 2nd board, 11½/17, +7 =9 &minus;1;
* [[19th Chess Olympiad|Siegen 1970]]: 2nd board, 8/16, +3 &minus;3 =10;
* [[Mayagüez]] Student Olympiad 1971: 1st board, 6½/11, +6 &minus;4 =1, team bronze;
* [[20th Chess Olympiad|Skopje 1972]]: 1st board, 9½/17, +6 &minus;4 =7;
* [[21st Chess Olympiad|Nice 1974]]: 1st board, 10½/19, +8 &minus;6 =5;
* [[25th Chess Olympiad|Valletta 1980]]: 2nd board, 3/8, +2 &minus;4 =2;
* [[26th Chess Olympiad|Thessaloniki 1984]]: 1st board, 5/11, +4 &minus;5 =2.
==Grandmaster==

Suttles was already of grandmaster strength by 1968, and in fact qualified for the grandmaster title at the [[Lugano]] Olympiad. However, he was denied the title on the basis of a technicality, namely that he had played (and won) one more than the required number of games in the event.<ref>{{citation |url=http://www.library.ubc.ca/archives/pdfs/chronicle/AL_CHRON_1972_3.pdf |title=The chess odyssey of Duncan Suttles |first=N. E. |last=Omelusik |pages=11–14 |journal=UBC Alumni Chronicle |volume=26 |issue=3 |date=Autumn 1972}}.</ref><ref name=":3">{{Cite news |last=Raugust |first=Paul |date=1974-07-19 |title=World chess title gambits |work=Calgary Herald}}</ref> Instead, Suttles settled for the [[International Master]] title earned at the [[Interzonal|Sousse Interzonal]] in 1967. He finally achieved the grandmaster title at the [[San Antonio 1972 chess tournament|San Antonio tournament of 1972]], gaining the last half-point needed by drawing his game against the former world champion, [[Tigran Petrosian]].<ref name=":3" />

He won the [[Canadian Open Chess Championship]] at [[Ottawa]] 1973. He also won the 1973 ''[[La Presse (Canadian newspaper)|La Presse]]'' Open in [[Montreal]]. Suttles tied for first place in the [[U.S. Open Chess Championship]] at [[Chicago]] 1973, scoring 10/12 and defeating GM [[Walter Browne]] in the last round.<ref>''Chess on the Edge'', pp. 216–19.</ref><ref>{{Cite news |date=1973-10-01 |title=Record US Open in Chicago |volume=28 |pages=556 |work=Chess Life & Review |issue=10 |url=https://uscf1-nyc1.aodhosting.com/CL-AND-CR-ALL/CL-ALL/1973/1973_10.pdf |access-date=2023-05-15}}</ref> Suttles placed clear second in the 1974 [[Canadian Open Chess Championship]] in [[Montreal]] with 9½/11, losing only to the winner, [[Ljubomir Ljubojević]]. That same  year, Suttles finished third in a strong field at an international tournament in Venice.<ref name=":0">{{Cite news |last=Benko |first=Pal |date=1975-02-01 |title=In the Arena: Venice 1974 |pages=80 |work=Chess Life & Review |url=http://uscf1-nyc1.aodhosting.com/CL-AND-CR-ALL/CL-ALL/1975/1975_02.pdf |access-date=2023-03-13}}</ref> 

He won the International Open at the Vancouver International Chess Congress in 1981, defeating [[Tony Miles]] and [[Yasser Seirawan]] in the final two rounds.<ref>{{Cite web |title=Vancouver International Chess Congress |url=http://www.chessbc.ca/games3.html |access-date=2023-03-13 |website=chessbc.ca}}</ref> The 1984 Vancouver Futurity marked Suttles's final Canadian event.<ref name=autogenerated3 />

While taking a break from over-the-board chess, Suttles won a major international correspondence chess tournament, the Heilimo Memorial, played from 1978&ndash;1981. Awarded the title of [[International Correspondence Chess Grandmaster|International Grandmaster of Correspondence Chess]] in 1982, he is one of the few players in chess history to hold both over-the-board and correspondence GM titles.<ref name=autogenerated3 />

== Playing style and legacy ==
{{algebraic notation|pos=section}}
In his youth, Suttles was strongly influenced by [[Aron Nimzowitsch]], and became, like Nimzowitsch, well-known for his unorthodox treatment of [[Hypermodernism (chess)|hypermodern openings]].  

Suttles championed the [[Modern Defence]] from the mid-1960s, showing that the line, which had previously been regarded with skepticism, was a fully playable universal defence against any White opening move. The line was dubbed The Rat, after the Black fianchettoed [[bishop (chess)|bishop]] which kept dodging around in its holes.<ref name=":2">{{Cite book |last1=Keene |first1=R.D. |title=The Modern Defence |last2=Botterill |first2=G.S. |publisher=B.T. Batsford |year=1972 |pages=}}</ref> 

As White, Suttles favoured 1.e4, with a predilection for the Closed Variation against the [[Sicilian Defence]], and the baroque [[Vienna Game]] after 1.e4 e5. He occasionally played the [[English Opening]] (1.c4) as well. By the early 1970s, he was frequently opening with 1.g3 as White, aiming for a reversed Modern Defence, another new opening idea. His unique skills – such as the avoidance of main opening lines, use of a defensive kingside [[fianchetto]], development of [[Knight (chess)|knights]] to unusual squares, and sudden eruption of tactics – are illustrated in the games listed below. 

Suttles was the leader in the group of young masters mentored by Macskasy.<ref>{{Cite news |last=North |first=Robert |date=2005 |title=An interview with Duncan and Dobrilla [Dobrila] Suttles |work=British Columbia Chess Federation Bulletin |issue=73 |url=https://www.chess.bc.ca/Bulletins/bccfbulletin73.pdf}}</ref><ref>{{Cite news |last=Berry |first=Jonathan |date=2005 |title=A Personal Remembrance |work=British Columbia Chess Federation Bulletin |issue=74 |url=https://www.chess.bc.ca/Bulletins/bccfbulletin74.pdf |access-date=2023-03-14}}</ref> The players fought each other over-the-board, but they also collaborated and learned from each other, and employed original playing styles to largely dominate Canadian chess for the better part of a decade. Other group members from the late 1960s were [[Peter Biyiasas]], Bruce Harper, [[Jonathan Berry]], and Robert Zuk.

Suttles' originality gained the attention of the chess world, but it also sparked some degree of incomprehension.<ref>{{Cite news |last=Harper |first=Bruce |date=1974-12-20 |title=Admirers call Suttles a genius |work=The Province (Vancouver) |url=https://www.newspapers.com/image/500699153 |url-access=limited |access-date=2023-05-03}}</ref> [[Robert Byrne (chess player)|Robert Byrne]], chess columnist for the ''New York Times,'' wrote:

<blockquote>
The taciturn Suttles is notorious for the most eccentric style in current chess – what might be called "outlandish hypermodernism." Not only does he develop his bishops on the wings, he also frequently sends his knights to the edges of the board too. If one can speak of antecedents for Suttles, it would have to be the crotchety British master [[Henry Bird (chess player)|Henry E. Bird]] or the defiant [[Wilhelm Steinitz]] at his most bizarre.<ref>{{Cite news |last=Byrne |first=Robert |date=1972-12-17 |title=Chess: Outlandish or Not, Suttles aims at a Grandmastership |pages=78 |work=New York Times |url=https://timesmachine.nytimes.com/timesmachine/1972/12/17/93425558.html?pageNumber=78 |url-access=subscription |access-date=2023-03-13}}</ref>
</blockquote>

However, [[Pal Benko]] commented that: 
<blockquote>
It is getting more and more difficult to find new ideas in theory, and for this reason one must admire those masters who are able to direct the game according to their original imagination and avoid the commonplace. One of these masters is Suttles, who has been called the Canadian Nimzovich. His wife Dobrila tells me that Duncan has no chess books at home, but this does not mean that he is unprepared for his opponents. He takes the time before each game to go over his systems.<ref name=":0" />
</blockquote>

Raymond Keene and [[George Botterill]] discussed Suttles' games and the strategy of the Rat in their book-length study, ''The Modern Defence'' (1972).<ref name=":2" />

''The World of Chess'' (1974), by [[Anthony Saidy]] and [[Norman Lessing]], said that Suttles was the "most original strategist since Nimzowitsch."<ref>{{Cite book |last1=Saidy |first1=Anthony |title=The World of Chess |last2=Lessing |first2=Norman |publisher=Random House |year=1974}}</ref>

"Suttles' style is unusual and he specializes in irregular openings," according to ''The Batsford Encyclopedia of Chess''. "His positions look awkward but his play is sound and he is remarkably good at finding ingenious defences in what seem to be hopeless positions."<ref>{{Cite book |last=Divinsky |first=Nathan J. |url=https://archive.org/details/batsfordchessenc0000divi/page/206/mode/2up |title=The Batsford Encyclopedia of Chess |publisher=Batsford |year=1990 |pages=206 |isbn=9780713462142 |access-date=2023-08-17 |url-access=registration}}</ref>

The largest annotated collection of Suttles' games (more than 600 in all) is ''Chess on the Edge.'' Published in three volumes in 2008, the effort was led by Bruce Harper with assistance from [[Yasser Seirawan]], [[:nl:Gerard_Welling|Gerard Welling]], and Jonathan Berry.<ref>{{Cite news |last=Mulgrew |first=Ian |date=2008-03-08 |title=The play of Duncan Suttles shows how it's done |pages=40 |work=Vancouver Sun |url=https://www.newspapers.com/image/497461141 |url-access=limited |access-date=2023-04-23}}</ref>

== Notable chess games ==
* [http://www.chessgames.com/perl/chessgame?gid=1135781, Gyozo Forintos vs Duncan Suttles, Tel Aviv Olympiad 1964, Modern Defence / Queen's Pawn Game (A40), 0–1] White responds in quiet and unusual fashion, but the game soon intensifies to Black's advantage.
* [http://www.chessgames.com/perl/chessgame?gid=1135817, Milan Matulovic vs Duncan Suttles, Sousse Interzonal 1967, Modern Defence, Averbakh Variation (A42), 0–1] The strong [[Milan Matulović|Yugoslav Grandmaster]] is seemingly perplexed by Black's unusual strategy.
* [http://www.chessgames.com/perl/chessgame?gid=1135824, Bent Larsen vs Duncan Suttles, Sousse Interzonal 1967, Modern Defence (B06), 0–1] Larsen was the Chess Oscar winner for 1967, so this win was perhaps the biggest so far for the young Canadian.
* [http://www.chessgames.com/perl/chessgame?gid=1135859, Hans-Joachim Hecht vs Duncan Suttles, Belgrade 1969, Modern Defence (B06), 0–1] Another Modern win over a strong European; the game was decided after a very long endgame.
* [http://www.chessgames.com/perl/chessgame?gid=1063134, Duncan Suttles vs Borislav Ivkov, Belgrade 1969, Modern / Hungarian Opening (A00), 1–0] One of the first games for the new variation, which turns out successfully for White.
* [http://www.chessgames.com/perl/chessgame?gid=1135903, Larry Evans vs Duncan Suttles, San Antonio 1972, Modern Defence (B06), 0–1] The five-time US champion gets schooled in the new ways.
* [http://www.chessgames.com/perl/chessgame?gid=1135935, Ken Rogoff vs Duncan Suttles, Canadian Open, Ottawa 1973, Modern Defence (B06), 0–1] Two young stars debate leading-edge opening ideas.
* [http://www.chessgames.com/perl/chessgame?gid=1131002, Duncan Suttles vs Kevin Spraggett, Canadian Open, Ottawa 1973, Sicilian Defence, Closed Variation (B26), 1–0] Spraggett was one of the best young Canadians at this stage; he would go on to become Canada's top player.
* [http://www.chessgames.com/perl/chessgame?gid=1035282, Walter Browne vs Duncan Suttles, U.S. Open, Chicago 1973, Modern Defence (B06), 0–1] The rising star Browne, an eventual six-time American champion, learns painfully about Suttles's ability to exploit weak squares.
* [http://www.chessgames.com/perl/chessgame?gid=1135939, Duncan Suttles vs Pal Benko, Hastings 1973–74, Modern / Hungarian Opening (A00), 1–0] Benko himself first introduced this variation in the early 1960s, but Suttles shows a few new twists.
* [http://www.chessgames.com/perl/chessgame?gid=1116860, Karl Robatsch vs Duncan Suttles, Nice Olympiad 1974, Modern Defence (A41), 0–1] Suttles shows that he is still one of the world's best with the Modern.
* [http://www.chessgames.com/perl/chessgame?gid=1135960, Lubomir Kavalek vs Duncan Suttles, Nice Olympiad 1974, Pirc Defence (B08), 0–1] Suttles subtly undermines Kavalek's classical opening with an impressive pawn roller at the end.
* [http://www.chessgames.com/perl/chessgame?gid=1135973, Duncan Suttles vs Bent Larsen, Canadian Open, Montreal 1974, English Opening (A13), 1–0] Suttles takes on the four-time world championship candidate, this time on home soil.
* [http://www.chessgames.com/perl/chessgame?gid=1135980, Duncan Suttles vs Samuel Reshevsky, Lone Pine 1975, English Opening (A26), 1–0] Reshevsky was the epitome of orthodoxy in chess, so this game is a fascinating clash of styles.
* [http://www.chessgames.com/perl/chessgame?gid=1097366, Duncan Suttles vs Tony Miles, Vancouver 1981, Modern/Hungarian Opening (A00), 1–0] Miles, after losing this game, would go on to use the variation himself with success.
* [http://www.chessgames.com/perl/chessgame?gid=1135989, Yasser Seirawan vs Duncan Suttles, Vancouver 1981, English Opening (A21), 0–1] Seirawan was one of the world's top young players, and he would develop a style that resembled Suttles's.
* [http://www.chessgames.com/perl/chessgame?gid=1135780, Pal Benko vs Duncan Suttles, Boston 1964, Modern Defence, 1–0] Although Suttles loses the game due to an oversight at the end, it is a wonderful encounter full of tactics and playing like one long combination. [[Lawrence Day]] chose it as his favourite for the book, ''Learn from the Grandmasters''.<ref>{{Cite book |url=https://archive.org/details/learnfromgrandma0000unse/page/82/mode/2up |title=Learn from the Grandmasters |publisher=Batsford |year=1998 |editor-last=Keene |editor-first=Raymond |edition=New algebraic |pages=82–88 |isbn=9780713481389 |access-date=2023-05-13 |url-access=registration}}</ref>

== References ==

{{reflist}}

== Further reading ==
* {{cite book |author=[[Harry Golombek |Harry Golombek, ed.]] |url=https://archive.org/details/golombeksencyclo0000golo/page/312/mode/2up |title=Golombek's Encyclopedia of Chess |publisher=Crown Publishers |year=1977 |isbn=0-517-53146-1 |url-access=registration}}
* {{cite book |author=Harper |first1=Bruce |title=Chess on the Edge |last2=Seirawan |first2=Yasser |volume=1 |publisher=[[Chess'n Math Association]] |year=2008 |isbn=978-1-895525-15-1}}
* {{cite book |author=Harper |first1=Bruce |title=Chess on the Edge |last2=Seirawan |first2=Yasser |volume=2 |publisher=Chess'n Math Association |year=2008 |isbn=978-1-895525-16-8}}
* {{cite book |author=Harper |first1=Bruce |title=Chess on the Edge |last2=Seirawan |first2=Yasser |volume=3 |publisher=Chess'n Math Association |year=2008 |isbn=978-1-895525-17-5}}

== External links ==
* {{FIDE}}
* {{ICCF}}
* {{CFC|105101}}
* {{OlimpBase FIDE ratings|Suttles,%20Duncan}}
* {{Chessgames player}}
* [http://www.canadianchess.info/canadianchesshistory/CanadianChessBiographiesS.html#SUTTLES Duncan Suttles] player profile and list of selected games, Canadian Chess Hall of Fame
* [http://www.chessmetrics.com/cm/CM2/PlayerProfile.asp?Params=199510SSSSS3S128302000000111000000000028310100 Duncan Suttles] Chessmetrics player profile
* [http://www.chessbc.ca/suttles.html Interview with Duncan Suttles, Grandmaster] February 1994
* [https://www.youtube.com/watch?v=-IEBhUK3Xgk Great Players of the Past: Duncan Suttles.] [[Ben Finegold]], video (47:48),  March 2023

{{Authority control}}
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{{DEFAULTSORT:Suttles, Duncan}}
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