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Chess situation in which one player can force a draw by repeatedly checking
In the game of chess, perpetual check is a situation in which one player plays an unending series of checks from which the other player cannot escape
Perpetual_check
Chess variant native to China
three pieces before considering the action perpetual. Lau specifies perpetual check as a player giving check with the same piece more than three times
Xiangqi
Chess maneuver
can be effected in many different ways, themes such as stalemate, perpetual check, and surprise mating attacks are often seen. The ability to swindle
Swindle_(chess)
Chess endgame
where the queen is immediately lost, or because a draw by stalemate or perpetual check can be forced. However, the win is difficult to achieve in practice
Queen_versus_rook_endgame
1996 and 1997 chess matches
little un-defended. And Garry could have threatened a perpetual check, not a win but a perpetual check." The moves that surprised Kasparov enough to allege
Deep Blue versus Garry Kasparov
Deep_Blue_versus_Garry_Kasparov
Japanese strategy board game
a thousand days"), as long as the positions are not due to perpetual check. Perpetual check (連続王手の千日手) is an illegal move (see above), which ends the game
Shogi
Chess rule
for a claim to be valid. The rule applies to positions, not moves. Perpetual check is no longer specifically mentioned in the rules of chess; such a situation
Threefold_repetition
Chess match between Ian Nepomniachtchi and Ding Liren
appearing to threaten a draw by perpetual check; Nepomniachtchi would later call it a "bluff", as White can escape perpetual check and win after taking the rook
World_Chess_Championship_2023
Result of a chess game ending in a tie
defining perpetual check—a situation in which one player gives a series of checks from which the other player cannot escape—as a draw. Any perpetual check situation
Draw_(chess)
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
King's_Indian_Attack
2500 + 2700, divided by 4). perpetual check Often shortened to perpetual. When a player puts the opponent in check and the check could be repeated endlessly
Glossary_of_chess
Chess game played in 1872
attempted king hunt, but White spectacularly manages to force a draw by perpetual check. The game itself has often been replayed as a prearranged draw. Its
Immortal_Draw
Fairy chess piece
the amazon to give perpetual check; otherwise, the side with the empress can force a simplification or give their own perpetual check. King and amazon versus
Amazon_(chess)
Rules of play for the game of chess
Adjournment (games) (rare now) Castling Check Checkmate Draw Draw by agreement En passant Fifty-move rule Perpetual check (former rule) Promotion Stalemate
Rules_of_chess
Chess position where the King is attacked
checking: Repetitive checking to prevent losing the game (draw by perpetual check) Royal fork (fork of the king and queen) or other forks involving the
Check_(chess)
Type of move in chess
the defense usually tries for a perpetual check and sometimes the stronger side can stop it only by a cross-check. This article uses algebraic notation
Cross-check_(chess)
Fairy chess piece
the amazon to give perpetual check, as otherwise the side with the empress can force a simplification or give its own perpetual check. King and empress
Empress_(chess)
Fairy chess piece
Sb5+ Ka8 5. Nd2# With nightriders on the board, a mutual discovered perpetual check is possible. A possible continuation would be: 1. Kd3+ Kc5+ 2. Kc3+
Nightrider_(chess)
2026 chess competition
Atwell's game turned around and even her opponent had to draw by perpetual check, while Alice Lee extended her winning streak to five games with a win
Women's event at the 46th Chess Olympiad
Women's_event_at_the_46th_Chess_Olympiad
Chess piece
enough to force victory by the blind swine mate, or at least a draw by perpetual check. Rooks are most powerful towards the end of a game (i.e., the endgame)
Rook_(chess)
Chess variant native to Korea
Janggi Association, there is no draw in any form, including draw by perpetual check or repetition of position. If a position repeats three times, a referee
Janggi
2003 Canadian film
the time, it was reported that both Kasparov and Deep Blue missed a perpetual check that could have given Kasparov a draw, but the strongest computer chess
Game Over: Kasparov and the Machine
Game_Over:_Kasparov_and_the_Machine
Game piece for playing chess
rook involved are unmoved, if the king is not in check, if the king would not travel through or into check, and if there are no pieces between the rook and
Chess_piece
Composed chess endgame position
Qe2+ or 7.Kb4? Qh4+ with perpetual check) Qxg5+ 8. Ka6 (the queen is deflected from the white diagonal where she could give check) 8... Bxa7 (or 8...Qb5+
Endgame_study
Chess-playing automaton hoax (1770–1854)
acquisition by Mälzel, allowing the machine to say "Échec!" (French for "Check!") during games. The operator inside the machine had tools to assist in
Mechanical_Turk
Situation in chess without a legal move
threatens 4.Rxb2 and 5.Rxa2+, forcing stalemate or perpetual check) 3... Bc4 (trying to get in a check; 3...b1=Q, 3...b1=B, and 3...Bb1 are all stalemate;
Stalemate
In chess, the sacrifice of a queen
benefit for the sacrificer, usually in the form of a quick checkmate (or perpetual check or stalemate if seeking a draw), or the recouping of the sacrificed
Queen_sacrifice
Chess game played by Garry Kasparov
visualize. 32. Qxa6+ Kxb4 33. c3+ Kxc3 34. Qa1+ Kd2 35. Qb2+ Kd1 White gives checks to invite Black's king into White's back rank. 36. Bf1!! Rd2 If Black plays
Kasparov's_Immortal
Advantage of White over Black in chess
the main line of this variation leads, with best play, to a draw by perpetual check. They wrote that the following game "will probably remain the last
First-move_advantage_in_chess
Norwegian chess grandmaster (born 1990)
a draw. In spite of this, he eschewed several opportunities for a perpetual check, and successfully took aim at sole first place. He was awarded the
Jon_Ludvig_Hammer
fifty-move rule have been refined and now require a formal claim. Perpetual check is no longer included in the rules of chess. There have been no recent
History_of_chess
Chess piece
announcing "gardez la reine" or simply "gardez", similar to the announcement of "check". Some published rules even required this announcement before the queen
Queen_(chess)
Rule in shogi
game ends in sennichite iff the positions are not due to perpetual check. (Perpetual check is an illegal move, which ends the game in a loss in tournament
Sennichite
Chess pattern of development
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Fianchetto
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Queen's_Gambit
List of codes used to classify chess openings
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
List_of_ECO_codes
Small shogi game variant
position three turns in a row, the game is a draw. Unlike in shogi, perpetual check is also a draw. There are two ways to win the game: capturing ("catching")
Dōbutsu_shōgi
Internet chess server
computer analysis of games, and the chess variants of crazyhouse, three-check chess, king of the hill, chess960, atomic and bughouse. In June 2017, the
Chess.com
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Fried_Liver_Attack
Open-source online chess platform
Horde (a variant of Dunsany's chess) King of the Hill Racing Kings Three-check chess It also has a mode that enables one to play from a set position, whether
Lichess
Ukrainian chess grandmaster (born 1996)
had a winning position, but did not see a variation that permitted a perpetual check, which allowed Vocaturo to maintain his half point lead, thereby winning
Illia_Nyzhnyk
Chess game played in London in 1851
depriving White of the right to castle, and is less popular than 3.Nf3. This check, however, also exposes Black's queen to attack with a gain of tempo on the
Immortal_Game
Englishman acquitted of murder on appeal
maddening, frustrating fascination of a chess problem that ends in perpetual check. ... Any set of circumstances that is extracted from it will readily
William_Herbert_Wallace
Chess opening
continues 4.Nf3 Nc6 (4...c5 allows 5.e3 because Black no longer has the bishop check) and now White's primary options are 5.a3, 5.Nbd2, and 5.g3. Perhaps White's
Albin_Countergambit
Chess opening
has mapped out many forcing lines leading to balanced positions or perpetual check. The 8.a4 Anti-Marshall is the most popular way for White to avoid
Ruy_Lopez
Set of chess variants played on a board with hexagonal cells
negligible number (0.0019%) of perpetual check draws); king + rook beats king + bishop (no fortress draws and no perpetual check draws); king + two bishops
Hexagonal_chess
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
London_System
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Danish_Gambit
Finding an optimal algorithm for playing chess
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Solving_chess
Chess opening
threat to his queen, in view of 11.Nxd8 Bf2+ 12.Kd2 Be3+ with a draw by perpetual check. White can instead try 11.Nxb5, with complicated play. White can also
Pirc_Defence
American chess player (1933–2024)
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Lisa_Lane
Chess opening
f8, threatening to win the f2-pawn by Bxf2+, Kxf2 and Nxd5+ discovered check. 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 Bxf2+ 6. Ke2?? This way
Traxler_Counterattack
Chess maneuver
seventh rank and perpetually checks Black's king. 47. h4! Re2+ 48. Kh1 Qxg3?? 49. Qg8+! Kxg8 50. Rxg7+ As with any perpetual check, a draw by agreement
Desperado_(chess)
Chess piece
inferior to a knight which can jump over them. A knight check cannot be blocked but a bishop check can. Furthermore, on a crowded board a knight has many
Bishop_(chess)
Chess match between Viswanathan Anand and Veselin Topalov
Qc1+ 82. Kg3 Qg1+ 83. Kf4 ½–½ A draw by threefold repetition (with perpetual check). Anand moved 40. Rh8+?, hoping to repeat moves in order to make time
World_Chess_Championship_2010
Chess endgame study by Fernando Saavedra
were on b1, 6...Rc2+ would win, so White must acquiesce to a draw by perpetual check. 3. Kb4 Rd4+ 4. Kb3 Rd3+ 5. Kc2 It looks like Black is out of squares
Saavedra_position
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Italian_Game
Style of chess, 18th to 19th century
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Romantic_chess
Chess opening
..Qg5, the main line continues 8.Qe2 Nf6 9.f4 Qxf4 10.Ne5+ (discovered check) c6 11.d4 Qh4+ 12.g3 Qh3, which was played in the game Timman vs Speelman
Jaenisch_Gambit
One of the four Marian dogmas
The perpetual virginity of Mary is a Christian doctrine that Mary, the mother of Jesus, was a virgin "before, during and after" the birth of Christ. In
Perpetual_virginity_of_Mary
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Sicilian Defence, Sveshnikov Variation
Sicilian_Defence,_Sveshnikov_Variation
Chess endgame where both sides have a queen and one side has an extra pawn
advanced to the seventh rank only if the queen is in place to prevent perpetual check. If the pawn is on h7, the best square for the queen is e4. In favorable
Queen and pawn versus queen endgame
Queen_and_pawn_versus_queen_endgame
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Nimzowitsch_Defence
Chess opening
playoffs, Yusupov sacrifices most of his pieces, including a rook with check, to checkmate White on the kingside. 1.c4 e5 2.g3 d6 3.Bg2 g6 4.d4 Nd7 5
King's_Indian_Defence
Chess match between Vladimir Kramnik and Veselin Topalov
queen and rook endgame, with both kings open, Topalov forced a draw by perpetual check. This left the score tied 6–6 at the end of regular time-control play
World_Chess_Championship_2006
Chess match between Magnus Carlsen and Ian Nepomniachtchi
difficult to win due to the threat of perpetual check. Nepomniachtchi made a last-ditch effort to create perpetual checks, but Carlsen calmly spent his available
World_Chess_Championship_2021
Chess opening
and lost quickly after 9.c4. Black should therefore acquiesce to the perpetual check with 8...Kf7 9.Qh5+ Ke6 etc. Instead, 8.c4 can be played if White is
Alekhine's_Defence
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Berlin_Defence
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Caro–Kann_Defence
Chess championship in Tripoli, Libya
In the end, though, Kasimdzhanov did manage to hold the draw with a perpetual check. This meant that rapid tie-breaks were required to decide the match
FIDE World Chess Championship 2004
FIDE_World_Chess_Championship_2004
Match between Bobby Fischer and Boris Spassky
position, Fischer had two extra pawns but had to execute a draw by perpetual check in order to escape being checkmated by Spassky's two rooks and knight
World_Chess_Championship_1972
Final phase in the game of chess
passed pawn outweighs the number of pawns. The defender must resort to perpetual check. These endings are frequently extremely long affairs. For an example
Chess_endgame
Shogi variant
trade it for more capable pieces. A player is not allowed to give perpetual check. This is not a rule in itself, but arises from the repetition rule
Chu_shogi
Chess opening
setting up a Maróczy Bind formation with a later c2–c4, or interpose a check with 5.Bb5+ Nbd7 6.Bd3 or 5.Bb5+ Bd7 6.Bxd7+ Nbxd7. The Najdorf Variation
Sicilian_Defence
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Réti_Opening
Reference work on chess openings
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Encyclopaedia of Chess Openings
Encyclopaedia_of_Chess_Openings
Unusually bad move in chess
defenseless against the mate threat. The game was eventually drawn by perpetual check on move 48. The sixth game of the World Chess Championship 2014 in
Blunder_(chess)
Russian chess player (1932–1992)
better than to accept perpetual check. All other 3rd Black moves result in mate in at most 6 moves, either by White capturing the checking piece (if 3...Nc6+
Leopold_Mitrofanov
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Catalan_Opening
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Bishop's_Opening
Chess opening
The black queen cannot capture the knight because 8...Qxb5 9.Bxb5+ is check, gaining time for the white queen to escape the threat from the bishop.
Blackmar–Diemer_Gambit
Chess opening
line; after 6...Kxf7 7.Qh5+, White can force a draw by repetition (perpetual check) or force Black to accept an inferior position. This line is significantly
Petrov's_Defence
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Grob's_Attack
Austrian-American chess player (1836–1900)
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Wilhelm_Steinitz
Chess opening
dubbed this the "Patzer Variation" (from the phrase "patzer sees a check, gives a check"); however, he considers it playable and underrated. 3...Qe6+?! is
Scandinavian_Defense
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Chess_database
System of points scoring in the game of chess
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Chess_scoring
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Barnes_Opening
Shogi variant invented by Vladimír Pribylinec starting in 2000
not move). Check, checkmate, and draws follow the same conditions as in classical chess. However, it is not permitted to give perpetual check in EuroShogi
EuroShogi
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Smith–Morra_Gambit
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Sicilian Defence, Accelerated Dragon
Sicilian_Defence,_Accelerated_Dragon
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Sicilian Defence, Scheveningen Variation
Sicilian_Defence,_Scheveningen_Variation
Computer chess competition
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
World Computer Chess Championship
World_Computer_Chess_Championship
Chess championship held between chess engines
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Top_Chess_Engine_Championship
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Tennison_Gambit
Game of chess
g7 d1=Q 50.Rxd1 Kxd1 51.gxh8=Q b1=Q+, when Black cannot engineer a perpetual check. 47... b1=Q 48. Rxb1 Kxb1 49. Kxg6 d2 50. h8=Q d1=Q The race to queen
Kasparov_versus_the_World
Chess opening
World Rules Castling Cheating in chess doping Check Checkmate Draw by agreement Fifty-move rule Perpetual check Stalemate Threefold repetition En passant
Sicilian Defence, Najdorf Variation
Sicilian_Defence,_Najdorf_Variation
Basic chess fundamentals and ideas developed to better understand the game
manuals, analyzed one line of the Botvinnik Variation to a draw by perpetual check after 44 moves. John Nunn, Graham Burgess, John Emms, and Joe Gallagher
Chess_theory
Chess positions with few pieces where none of them are a pawn
lone rook, unless there is an immediate draw by stalemate or due to perpetual check (or if the rook or king can immediately capture the queen). In 1895
Pawnless_chess_endgame
Large-board variant of shogi, or Japanese chess
these pieces as part of a gambit. A player is not allowed to give perpetual check to the sole objective piece. A player who captures the opponent's general
Ko_shogi
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