Irish Championship 2021 sources

Irish Championship 2021

[ Information | Pairings & results | Crosstable | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | Openings | Annotations | Sources ]

Sources and notes

Sources
FIDE records	Tournament 263567
Flyer	The 100th Irish Championship 2021 (3-page pdf)
ICU web site	Tournament page Irish Championship: Terms and Conditions (T & C as of July 30, 2021) The 100th Irish Championship 2021: Build-up, John McMorrow, Seán Coffey, David McAlister, Sam O'Neill, April 20-July 28, 2021 (profiles of entrants and past champions) The 100th Irish Championship 2021, John McMorrow, March 1, 2021 onwards (9 additional news items) Ratings report
Chess24.com	Irish Championship (all boards, with engine analysis)
LiveChessCloud	The 100th Irish Championship 2021 (live boards)
Chess-Results.com	Pairings & results Games (all 156 games)
TWIC	TWIC 1395, item 15 (all scores after two rounds) and TWIC 1396, item 36 (all final scores) TWIC 1395 pgn file (36 games, rounds 1-2) and TWIC 1396 pgn file (120 games, rounds 3-9)
Newspapers	Irish Times: “Irish chess champ follows in father's footsteps to win title”, Ronan McGreevey, August 8, 2021 (including video, by Enda O'Dowd, 5m., 9s.) Sunday Independent: August 15, 2021 p. 29, Alexander Baburin (report, annotation of Heidenfeld - S. Murphy (9))
Web	Irish Championships 2021, Boards.ie, February 24, 2021 onwards Tipping Competition, Boards.ie, July 24, 2021 onwards (tipping competition 1st CremeDeLaHarvey; 16 participants) 100th Irish Chess Championships, July 22, 2021 (notice) and Heidenfeld wins the 100th Irish Championships, August 9, 2021 (summary report), Rory Quinn, Ennis Chess blog Irish Championship (final totals), Irish Chess History web site
Facebook	Irish Chess Union Facebook page: Post, April 19, 2021, and subsequent posts (profiles of all previous Irish champions, plus current field) Video, July 31, 2021 (opening remarks of the chief arbiter) (5m., 14s.); see also regular posts during the championship, including Post, August 2, 2021 (puzzle based on Tarun Kanyamarala - Leon Putar, round 3) Post, August 2, 2021 (update after round 3), Post, August 4, 2021 (update after round 5), and Post, August 8, 2021 (result) European Chess Union Facebook page: Post, August 8, 2021, European Chess Union page

Notes
Key	In "Pairings & results", "age" denotes the player's age on his or her birthday that year (even if the birthday fell after the event) "x-ch" denotes former Irish champions "ol" denotes players selected for the 2020 Olympiad (which is postponed to 2021). (Note: Trisha Kanyamarala and Alice O'Gorman were selected for the Women's Olympiad.) "ch#" denotes the number of championships the player played in, including this one
Times	The Chess-Results.com pgn file contains time stamps for all moves.
Olympiad place	The winner was guaranteed an automatic Olympiad place for the next Olympiad after the 2021 Olympiad.
Débuts	Aherne, Burke, Murchadha, and Sam Murray made their Irish championship débuts.
Eligibility	Under rules approved at the 2018 AGM, some players could have the rating requirement ignored provided they were nominated by: a. The ICU Executive (maximum 2 players); or b. The tournament organisers (maximum 1 player). In addition, the Irish Women’s Champion, Irish 50+ and 65+ Champions, and all previous IRL winners of this event were automatically eligible to play in the Irish Championship irrespective of rating. For this event, the rating requirement was applied strictly. Sam Murray played as a filler to ensure no player had an unwanted bye.
Tiebreak	The tiebreak method (see Terms and Conditions) was adopted for the 2018 championship, based on ICU Executive Committee decision, and subsequently ratified at the 2018 AGM for all Irish championships.
Possible tiebreaks	Heading into the last round, four players had a chance of finishing first or equal first, but only three had a chance of becoming champion. Conor Murphy could only have finished equal first by winning his last round game (as he did), and by Seán Murphy winning against Heidenfeld, instead of losing. That would have produced a three-way tie for first between Heidenfled, C. Murphy, and S. Murphy, which would have led to a playoff match between Heidenfeld and S. Murphy. Seán Murphy was guaranteed at least a playoff if he had won his last-round game; he would have won immediately if O'Gorman won or drew.
Withdrawals	Several players entered and withdrew before the event started, including at least Sam Collins, Mark Quinn, Joe Ryan, Stephen Brady, Killian Delaney, John Delaney, Shane Melaugh, Daire McMahon, Jacob Flynn, Colin Menzies, John McMorrow, Jonathon Peoples, Diana Mirza, Eamon Keogh, Colm Quigley, and Conor Nolan (16 players).
Ratings	FIDE ratings are from the August 2021 list. ICU ratings are from the December 2020 list (last list published before start of event).
Versions	v1.0 (1 Sep 2021): first published version. v1.1 (23 Aug 2022): corrected link to terms and conditions document in Sources and notes → Sources → ICU web site; added _tables file in directory; added XML directory and file; changed "tie break" and "tie-break" to "tiebreak" throughout v1.2 (8 Feb 2023): changed Sam Murray's round 8 and 9 results from "Travelling bye" to "Did not play", and changed tables accordingly throughout; added accent to Oissíne Murchadha's first name throughout
Contributors	Seán Coffey