401:, its inventor), like increment, adds a fixed amount of time after each move, but no more than the amount of time spent to make the move. For example, if the delay is ten seconds and a player uses ten or more seconds for a move, ten seconds are added after they complete their move. If the player uses five seconds, only those five seconds are returned to the clock. This ensures that the main time left on the clock can never increase even if a player makes fast moves. As with increment, under FIDE and US Chess rules, the delay time is applied to the first move.
27:
259:
time (verbally) begins once the player falls below a certain threshold of time, such as 10 minutes; when the time is being counted, the player is informed at intervals how much time they have used in their current period, and how many extra periods they have left. (For example, the time may be called at 10-second intervals, and when 55 and 58 seconds have been used; during a player's final minute, the last 10 seconds are counted one by one.) Similarly, in the televised
306:, players stop the clock, and the player in overtime counts out the required number of stones and sets the remaining stones out of reach so as not to become confused, whilst the opponent sets the clock to the overtime period. If all the moves are made in time, then another period of overtime starts — another set of stones and the timer again reset to the overtime period. If all the moves are not made in time, the player has
358:'s patent on it), a specified amount of time is added to the player's main time after each move, unless the player's main time ran out before they completed their move. For example, if the time control is "G/90;inc30" (90 minutes of main time per player, with a 30-second increment each move), each player gets an additional 30 seconds added to their main time after each move, unless the player's main time ran out first.
468:
173:, the time control is standardized to 25 minutes per side with a 10-point penalty for each minute or part thereof that is used in excess, so that overstepping the allotted time by 61 seconds carries a 20-point penalty; a player who oversteps by 10 minutes automatically loses; in this case, their opponent is given enough additional points to win by one point, if they were not already in the lead at that time.
294:, with designations such as "5 minutes + 12 seconds per move". Under this time control each player has twelve seconds added to their clock after every move, starting from the first move, regardless of how much time they spend on each move. Thus if a player thinks for eight seconds before making their first move, they will have five minutes and four seconds on their clock after making it.
2509:
186:: sand empties from one container and fills the other. The sum of both clocks always remains the same, and slow moves give extra time to the opponent. There is no maximum amount of time allotted for a game with this timing method; if both players play quickly enough, the game will continue until its natural end.
274:
uses a similar system, but the byo-yomi time is variable and always covers 25 moves. Thus the time control "20 minutes + 15 minutes byoyomi" on IGS means that after the initial 20 minutes of thinking time are over, a player is granted 15 additional minutes, which may be spent however they choose. If
254:
games and many amateur tournaments, a player has several byo-yomi periods, for example five periods of one minute each. If a player makes their move within a one-minute period, they retain all five periods for their future moves. If a player oversteps one minute, they start the following move in the
246:
A typical time control is "60 minutes + 30 seconds byo-yomi", which means that each player may make as many or as few moves as they choose during their first 60 minutes of thinking time, but after the hour is exhausted, they must make each move in thirty seconds or less. To enforce byo-yomi, a third
404:
The Simple and
Bronstein delays are mathematically equivalent. The advantage of the Bronstein delay is that the player can easily see how much time is remaining without mentally adding the delay to the main clock. The advantage of the simple delay is that the player can always tell whether the delay
258:
In higher-level tournaments, such as the Kisei tournament, the player's time is often composed entirely of byo-yomi periods (for example, in an eight-hour game, the player may have 480 periods of one minute each), rather than having a main block of thinking time. In this case, the actual counting of
454:
in its last two seasons. The rules are similar to the normal counterpart, except each of the two participating teams (of two players each) has 2 minutes on their clock. On each team's turn, a third member would draw out a number (from 0 to 3), and the two playing members must take turns pulling out
168:
Such methods exact a points penalty, or fine, on the player who breaches their time limit. One example occurs in Go, where the Ing Rules enforce fines on breaches of main time and overtime periods. The rules may also provide for a sudden death time control in addition to the penalty. In tournament
426:
uses the classic sudden death format for each round of questioning. Each duel between two players consists of four rounds, and each player is allotted one minute on their clock for each of the first three rounds. The winner of each round has their remaining time added to their clock in the final
218:
After the main time is depleted, a player has a certain number of periods (for example five periods, each of thirty seconds). If a move is completed before the time expires, the time period resets and restarts the next turn. If a move is not completed within a time period, the time period will
440:, pits one minute for each of the player's and the chasers' clocks. However, before the showdown, the player is presented with a list of choices about the number of chasers to face, with their respective cash prizes and time advantages (which would be subtracted from the chasers' clock).
160:, reaching a fixed number of moves can trigger the gain of a fixed amount of extra time. This usually occurs in long games after the 40th move: e.g. 120 minutes to complete the first 40 moves, and another 30 minutes added to the leftover 120 minutes to complete the rest of the game.
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second rather than the first byo-yomi period. In effect, the player has one minute per move plus four extra one-minute packets which may be used as needed, e.g. four moves of two minutes each, or one move of five minutes, or any other combination.
385:), the clock waits for a fixed delay period during each move before the player's main time starts counting down. For example, if the delay is ten seconds, the clock waits for ten seconds each move before the main time starts counting down.
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and stacking as many blocks as required by the number, then stop the clock to end their turn by hitting a button. The first team to make the tower fall or run out of time loses. A rule violation applies a 5-second time penalty.
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Each player's clock starts with a specified time (such as one minute or ten minutes). While one player is deciding a move, their clock time decreases and their opponent's clock time increases. This is analogous to an
85:
The amount of time given to each player to complete their moves will vary from game to game. However, most games tend to change the classification of tournaments according to the length of time given to the players.
278:
Canadian byo-yomi imposes a certain average speed of play, but allows the player to spend more time to ponder on difficult moves. Several byo-yomi periods in one move per period variant (also known as
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and US Chess rules, each player gets the increment for the first move as well. For example, with "G/3;inc2", each player starts with three minutes and two seconds on the first move. Not all digital
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these minutes expire before they have made 25 more moves, they lose. If they make 25 more moves in less than 15 minutes, they are granted another 15 minutes of byo-yomi, and so on indefinitely.
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time or the main time is counting down. The simple delay is the form of delay most often used in the United States, while the
Bronstein delay is more often used in most other countries.
156:
Here the game time is separated into two basic domains: the main time and the overtime. To switch between the two requires some trigger event, often the expiration of the main time. In
69:, which counts time spent on each player's turn separately. A player that spends more time than the time control allows is penalized, usually by the loss of the game. Time pressure (or
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After using all of their main time, a player must make a certain number of moves within a certain period of time — for example, twenty moves within five minutes. In
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This is the simplest methodology. Each player is assigned a fixed amount of time for the whole game. If a player's main time expires, they generally lose the game.
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When analog game clocks are used to enforce byo-yomi, it is more convenient to assign additional time for a block of moves, rather than for each move. In
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113:" games are the fastest, with either a very short time limit per move (such as ten seconds) or a very short total time (such as one or two minutes). "
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to the nearest whole increment, such as one minute, and the actual counting of time occurs toward the end of one player's time.
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the required rate of play alters in additional overtime periods — EG 1hour + 10 in 5, 20 in 5, 30 in 5, 40 in 5 etc.
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automatically give the increment for the first move; for those that don't, the increment time has to be added manually.
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Unused time during one byo-yomi period does not carry forward to future moves. This is in contrast to the
77:) is the situation where one player has very little time on their clock to complete their remaining moves.
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so that each round of the match can finish in a timely way and the tournament can proceed.
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title matches, there is no main time; instead, the time used is rounded
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283:) serve essentially the same purpose, albeit to a lesser extent.
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270:, a player typically gets 5 minutes for 10 to 20 moves. The
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128:, anything under twenty minutes could be considered "blitz".
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person or a game clock with a byo-yomi option is necessary.
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expire, and the next time period begins. This is written as
117:" games typically give five to ten minutes per player, and "
839:
362:
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These are the timing methods most often used in chess.
231:. Using up the last period means that the player has
65:, time controls are typically enforced by means of a
463:
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number of moves to be completed in each time period
448:includes a mini-game based on the dexterity game
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121:" games give between ten and sixty minutes.
608:"Byoyomi Explained - British Go Association"
413:Time control has also been utilised in some
708:US Patent No. 4,884,255 for Fischer's clock
766:
752:
25:
140:to regulate games varies considerably.
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189:Use of this time control is uncommon.
747:
537:from the original on 20 December 2016
430:Likewise, the head-to-head round of
297:
507:List of professional Go tournaments
235:. In some systems, such as certain
207:This timing method is also used in
151:
13:
740:description of how time is called.
638:"The Origins of Canadian Byo-Yomi"
618:from the original on 7 August 2017
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695:FIDE Tournament Time Control rule
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2178:List of strong chess tournaments
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1156:Gökyay Association Chess Museum
723:U.S. Women's Chess Championship
714:Game time controls on BrainKing
673:from the original on 2006-12-06
586:"NSA Official Tournament Rules"
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225:number of byo-yomi time periods
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324:Progressive Canadian Overtime
18:Time control (disambiguation)
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211:. The word is borrowed from
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2058:Bishop and knight checkmate
719:A sudden death time control
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97:of short time limits are: "
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2078:Queen and pawn vs queen
561:American Go Association
23:Mechanism used in chess
1944:Richter–Veresov Attack
1932:Queen's Indian Defence
738:British Go Association
667:British Go Association
557:"Ing's SST Laws of Go"
38:is a mechanism in the
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2205:Candidates Tournament
2093:Rook and pawn vs rook
2063:King and pawn vs king
2014:List of chess gambits
1917:King's Indian Defence
1595:Isolated Queen's Pawn
1119:List of chess players
1061:Top player comparison
860:Internet chess server
310:. This is written as
197:
29:
1922:Nimzo-Indian Defence
1818:Scandinavian Defense
1779:Semi-Italian Opening
1684:King's Indian Attack
1573:first-move advantage
1226:Threefold repetition
1151:Bobby Fischer Center
1036:Charlemagne chessmen
1030:Göttingen manuscript
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835:Correspondence chess
721:determines the 2008
229:byo-yomi time period
30:Chess set with timer
16:For other uses, see
2150:Two knights endgame
1902:Bogo-Indian Defence
1789:Two Knights Defense
1729:Nimzowitsch Defence
1419:Artificial castling
1056:Soviet chess school
931:Dubrovnik chess set
381:(also known as the
2380:endgame literature
1927:Old Indian Defense
1837:Accelerated Dragon
1709:Alekhine's Defence
1441:Checkmate patterns
1310:symbols in Unicode
1305:annotation symbols
1068:Geography of chess
936:Staunton chess set
700:2020-07-27 at the
663:"A. Default Rules"
261:NHK Cup tournament
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2540:Chess terminology
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2333:Chess in the arts
2265:Chess composition
2103:Philidor position
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1986:Trompowsky Attack
1969:Semi-Slav Defence
1859:Queen's Pawn Game
1739:Four Knights Game
1714:Caro–Kann Defence
1679:Zukertort Opening
1466:Discovered attack
1186:Cheating in chess
1023:Versus de scachis
445:Family Game Night
298:Canadian overtime
281:Japanese byo-yomi
268:Canadian byo-yomi
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2514:Chess portal
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2455:Leela Chess Zero
2386:Oxford Companion
2338:early literature
2328:Chess aesthetics
2073:Pawnless endgame
2024:Bongcloud Attack
2002:List of openings
1974:Chigorin Defense
1912:GrĂĽnfeld Defence
1823:Sicilian Defence
1769:Ponziani Opening
1764:Philidor Defence
1759:Petrov's Defence
1701:King's Pawn Game
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1285:Chess notation
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1240:Pawn promotion
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1143:
1141:Women in chess
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1087:
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1080:
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1064:
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1051:Hypermodernism
1048:
1046:Romantic chess
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1041:Lewis chessmen
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879:world rankings
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808:Computer chess
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741:
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730:definition of
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689:External links
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684:
683:
654:
629:
612:www.britgo.org
599:
596:on 2007-09-27.
577:
548:
527:"Instructions"
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494:
489:
487:Rules of chess
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290:often used in
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81:Classification
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53:games such as
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2494:Solving chess
2492:
2490:
2487:
2485:
2484:Chess prodigy
2482:
2478:
2475:
2473:
2470:
2469:
2468:
2467:Chess problem
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2375:opening books
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2363:short stories
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2146:
2143:
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2138:
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2131:
2129:
2128:triangulation
2126:
2124:
2123:Tarrasch rule
2121:
2119:
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2111:
2110:
2108:
2104:
2101:
2099:
2096:
2095:
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2084:
2083:Queen vs pawn
2081:
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1897:Modern Benoni
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1877:Dutch Defence
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1754:King's Gambit
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1672:
1670:
1669:Grob's Attack
1667:
1665:
1662:
1660:
1659:Dunst Opening
1657:
1655:
1652:
1650:
1649:Benko Opening
1647:
1646:
1644:
1642:
1641:Flank opening
1638:
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1396:Transposition
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1146:Chess museums
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1114:Notable games
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903:World records
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874:Rating system
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664:
658:
644:on 2006-11-20
643:
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581:
567:on 2006-12-31
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400:
397:(named after
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368:
364:
359:
357:
356:Bobby Fischer
353:
349:
345:
340:
327:
325:
309:
305:
295:
293:
289:
288:Fischer clock
284:
282:
276:
273:
272:IGS Go server
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56:
52:
47:
45:
41:
37:
28:
19:
2440:Chess engine
2425:Chess boxing
2385:
2155:Wrong bishop
2007:theory table
1981:Torre Attack
1964:Slav Defence
1872:Colle System
1847:Scheveningen
1806:Pirc Defence
1749:Italian Game
1744:Giuoco Piano
1689:RĂ©ti Opening
1612:Piece values
1600:MarĂłczy Bind
1561:the exchange
1551:Compensation
1481:Interference
1471:Double check
1245:Time control
1244:
1232:
1206:by agreement
1134:grandmasters
1078:South Africa
1028:
1021:
997:Score sheets
943:Chess pieces
850:Online chess
796:Chess titles
791:Chess theory
731:
675:. Retrieved
666:
657:
646:. Retrieved
642:the original
632:
620:. Retrieved
611:
602:
594:the original
589:
580:
569:. Retrieved
565:the original
560:
551:
539:. Retrieved
530:
521:
482:Time trouble
474:Japan portal
449:
444:
435:
431:
421:
412:
403:
394:
392:
382:
379:simple delay
378:
376:
373:Simple delay
367:chess clocks
360:
351:
347:
343:
341:
338:
323:
308:lost on time
307:
301:
285:
280:
277:
267:
265:
257:
249:
245:
240:
233:lost on time
232:
217:
206:
193:Game formats
188:
180:
167:
155:
147:
144:Sudden death
135:
123:
118:
114:
110:
106:
102:
98:
88:
84:
74:
71:time trouble
48:
36:time control
35:
33:
2550:Rules of Go
2370:Chess books
2170:Tournaments
2029:Fool's mate
1794:Vienna Game
1784:Scotch Game
1617:Prophylaxis
1533:Zwischenzug
1518:Undermining
1486:Overloading
1446:Combination
1295:descriptive
990:Chess table
985:Chess clock
801:Grandmaster
320:time period
132:Methodology
44:board games
2534:Categories
2477:joke chess
2430:Chess club
2118:opposition
1580:Middlegame
1568:Initiative
1491:Pawn storm
1456:Deflection
1327:Key square
1317:Fianchetto
1250:Fast chess
1234:En passant
926:chessboard
677:2006-11-25
648:2006-11-20
571:2006-11-25
513:References
497:Shot clock
492:Fast chess
423:Grand Slam
415:game shows
409:Other uses
138:game clock
95:categories
67:game clock
51:turn-based
40:tournament
2460:Stockfish
2450:Deep Blue
2445:AlphaZero
2353:paintings
2145:Tablebase
2109:Strategy
2019:Irregular
1774:Ruy Lopez
1734:Open Game
1501:Sacrifice
1461:Desperado
1364:connected
1337:Open file
1332:King walk
1290:algebraic
1221:Stalemate
1196:Checkmate
921:Chess set
913:Equipment
437:The Chase
344:increment
312:main time
184:hourglass
177:Hourglass
2555:Horology
2519:Category
2472:glossary
2133:Zugzwang
2113:fortress
2050:Endgames
1959:Declined
1954:Accepted
1632:Openings
1590:Hedgehog
1556:Exchange
1543:Strategy
1523:Windmill
1374:isolated
1359:backward
1181:Castling
1124:amateurs
1017:Timeline
891:Variants
845:Glossary
828:software
813:glossary
732:byo-yomi
698:Archived
671:Archived
616:Archived
535:Archived
460:See also
383:US delay
354:, after
221:maintime
213:Japanese
203:Byo-yomi
171:Scrabble
105:", and "
2420:Arbiter
2413:Related
2270:Solving
2260:Amateur
1842:Najdorf
1424:Battery
1411:Tactics
1386:Swindle
1369:doubled
1349:Outpost
1280:Blunder
1095:Armenia
1009:History
855:Premove
823:engines
818:matches
783:Outline
377:In the
352:Fischer
75:Zeitnot
2358:poetry
2348:novels
2323:CaĂŻssa
2255:Senior
2245:Junior
1833:Dragon
1828:Alapin
1513:Skewer
1379:passed
1322:Gambit
1129:female
1090:Europe
1073:Africa
968:Knight
963:Bishop
361:Under
111:Bullet
99:bullet
93:, the
2305:WCSCC
2250:Youth
2240:Blitz
2235:Rapid
2225:Women
2188:Women
2140:Study
1995:Other
1528:X-ray
1451:Decoy
1436:Block
1391:Tempo
1354:Pawns
1272:Terms
1191:Check
1173:Rules
1107:India
1100:Spain
1085:China
978:Fairy
953:Queen
884:norms
775:Chess
622:9 May
541:9 May
451:Jenga
348:bonus
330:Chess
322:. In
292:chess
209:shogi
158:chess
119:rapid
115:Blitz
107:rapid
103:blitz
91:chess
59:shogi
55:chess
2343:film
2300:WCCC
2295:TCEC
2285:CSVN
2230:Team
2200:List
1476:Fork
1401:Trap
1201:Draw
973:Pawn
958:Rook
948:King
896:List
865:list
840:FIDE
624:2018
543:2018
393:The
363:FIDE
350:and
109:". "
101:", "
49:For
2280:CCC
1496:Pin
1300:PGN
342:In
318:in
250:In
227:of
124:In
89:In
73:or
61:or
2536::
669:.
665:.
614:.
610:.
588:.
559:.
533:.
529:.
417::
314:+
304:Go
241:up
237:Go
223:+
198:Go
126:Go
63:go
57:,
34:A
1835:/
767:e
760:t
753:v
734:.
680:.
651:.
626:.
574:.
545:.
20:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
