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Topics referred to by the same term
Look up d4 or D4 in Wiktionary, the free dictionary. D4, D.IV, d4 or variants may refer to: 22-Dihydroergocalciferol, vitamin D4 D4-isoprostane, a type
D4
Small bulldozer
The Caterpillar D4 track-type tractor is a small bulldozer manufactured by Caterpillar Inc. Caterpillar first introduced the RD4 in 1936, as the diesel
Caterpillar_D4
New Zealand rock band
The D4 were a rock band from Auckland, New Zealand. Their music was released by Hollywood Records in the U.S., Flying Nun Records in New Zealand and by
The_D4
Digital single-lens reflex camera
The Nikon D4 is a 16.2-megapixel professional-grade full frame (35mm) digital single-lens reflex camera (DSLR) announced by Nikon Corporation on 6 January
Nikon_D4
Chess opening
to White's first move 1.e4. Like 1...e5, the move contests control of the d4-square, but breaks symmetry immediately, often leading to dynamic and sharp
Sicilian_Defence
Japanese video game publisher
D4 Enterprise Co., Ltd. (株式会社D4エンタープライズ, Kabushiki-gaisha D4 Entāpuraizu; often shortened to D4E) is a Japanese video game publisher currently specializing
D4_Enterprise
Protein-coding gene in the species Homo sapiens
The dopamine receptor D4 is a dopamine D2-like G protein-coupled receptor encoded by the DRD4 gene on chromosome 11 at 11p15.5. The structure of DRD4 has
Dopamine_receptor_D4
Soviet/Russian command and control system
9S52 Polyana-D4 ASU (Russian: АСУ зенитной бригады 9С52 «Поляна-Д4» English: Meadow) is a Soviet/Russian automated command and control system for air defence
Polyana-D4
Chess opening
lines with 2.d4) Landau Gambit: 1.e4 c6 2.d4 d5 3.Bd3 Nf6 4.e5 Nfd7 6.e6 Mieses Gambit: 1.e4 c6 2.d4 d5 3.Be3 Diemer–Duhm Gambit: 1.e4 c6 2.d4 d5 3.c4 Advance
Caro–Kann_Defence
Motor vehicle
D4 are high-performance compact executive cars manufactured by the German automobile manufacturer, Alpina. Based on the BMW 4 Series, the B4 and D4 are
Alpina_B4
Chess opening
prevents White from playing d2–d4. In response, White can either force d4 with 8.h3 Bh5 9.Bxc6 bxc6 10.d4, or postpone d4 for the time being and play 8
Ruy_Lopez
2010 American film
D4 (or D4 Mortal Unit) is a 2010 horror film, directed and written by Darrin Dickerson. It stars Vicki Askew, Ella Bell and Eric Berner. D4 follows a
D4_(film)
Topics referred to by the same term
D4 motorway may refer to: D4 motorway (Slovakia) D4 motorway (Czech Republic) This disambiguation page lists articles associated with the title D4 motorway
D4_motorway
2014 video game
D4: Dark Dreams Don't Die is an episodic graphical adventure video game developed by Access Games and published by Microsoft Studios for the Xbox One.
D4:_Dark_Dreams_Don't_Die
Chess opening
Games are a family of chess openings beginning with the moves: 1. d4 d5 After 1.d4, when Black maintains symmetry by replying 1...d5, the result is a
Closed_Game
Pharmaceutical compound
DMT-d4 have been studied. The chemical synthesis of DMT-d4 has been described. A notable analogue of DMT-d4 is 5-MeO-DMT-d4. Other analogues of DMT-d4 include
DMT-d4
Submarine of the Royal Navy
HMS D4 was a British D-class submarine built by Vickers, Barrow. D4 was laid down on 24 February 1910, launched 27 May 1911 and was commissioned on 29
HMS_D4
Japanese manga series
D4 Princess (D4プリンセス, D4 Purinsesu) is a manga series created by Shotaro Harada (原田将太郎, Harada Shōtarō). The story was adapted into an anime series. The
D4_Princess
Chess opening
against White's opening move 1.d4. The original form of the Benoni, now known as the Old Benoni, is characterized by 1. d4 c5 This leaves Black a few options
Benoni_Defense
Former division of Nintendo
Nintendo Research & Development No.4 Department (abbreviated as Nintendo R&D4), was the largest software development division within the Japanese video
Nintendo Entertainment Analysis & Development
Nintendo_Entertainment_Analysis_&_Development
Submachine gun
The Gevarm D4 is a submachine gun that was developed in 1956 by the French company Gévarm, a subsidiary of the Gévelot cartridge company. It was used by
Gevarm_D4
Type of chess opening
chess opening in which White plays 1.d4 but Black does not make the symmetrical reply 1...d5. (The openings starting 1.d4 d5 are the Closed Games.) By far
Semi-Closed_Game
Postal district in Leinster, Ireland
Dublin 4, also rendered as D4 and D04, is a historic postal district of Dublin, Ireland including Baggot Street Upper, the southernmost fringes of the
Dublin_4
Full-size luxury sedan
unveiled in 2010 at the Beijing Auto Show. The D4 series Audi S8 4.0 TFSI quattro went on sale in 2012. The D4 S8 was based on the A8 platform, considered
Audi_A8
Chess opening
common, among others. This allows players to avoid certain responses to 1.d4 if they desire to, such as the Nimzo-Indian and Grünfeld. The opening is considered
English_Opening
Motorway in Slovakia
The D4 motorway (Slovak: Diaľnica D4) is a Slovak motorway which, when completed, will form the outer ring road around Bratislava, speed up access to motorway
D4_motorway_(Slovakia)
Chess opening
The Queen's Pawn Game is any chess opening starting with the move: 1. d4 It is the second most popular opening move after 1.e4 (the King's Pawn Game).
Queen's_Pawn_Game
Chess opening
divert the bishop on c5. If Black accepts, White can follow up with c3 and d4, ripping open the centre, while also opening diagonals to play Ba3 or Qb3
Evans_Gambit
Chess opening
opening moves: 1. e4 g6 Black allows White to occupy the center with pawns on d4 and e4, then proceeds to attack and undermine this "ideal" center without
Modern_Defense
Chess opening
other players tended to play 4.0-0. He developed the old main line 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+, and particularly the sharp variation 7.Nc3, which is still
Italian_Game
Reciprocating internal combustion engine
two-litre engines were developed in 2010 and marketed as the Volvo D3 and D4. It is an all-aluminium five-cylinder engine with 20 valves and double overhead
Volvo_D5_engine
Variation of mandolin
tuning (G3 G3 G3 • D4 D4 D4 • A4 A4 A4 • E5 E5 E5), while tricordias use either unison tuning or octave tuning (G2 G3 G3 • D3 D4 D4 • A3 A4 A4 • E4 E5
Tricordia
Chess opening
White's usual response is to immediately challenge Black in the centre with 3.d4. Black's most common reply is 3...exd4; 3...Nf6 and 3...Nd7 are the main alternatives
Philidor_Defence
Chess opening
Minor variations include O'Sullivan's Gambit, 3.d4 b5 (intending 4.Bxb5 c5 5.dxc5?? Qa5+), and 3.d4 d6 4.Bc4, the Balogh Variation. The Four Pawns Attack
Alekhine's_Defence
Chess opening
The Dutch Defence is a chess opening characterised by the moves: 1. d4 f5 Black's 1...f5 stakes a claim to the e4-square and envisions an attack in the
Dutch_Defence
Motorway junction in Slovakia
The D1/D4 Interchange (officially referred to as the Ivanka North Junction) is a partially opened motorway junction located in the Bratislava Region in
Ivanka_North_Junction
Chess opening
pawn to divert the black e-pawn. If Black accepts the gambit, White may play d4 and Bxf4, regaining the gambit pawn with central domination, or direct their
King's_Gambit
Chess opening
that begins with the moves: 1. e4 e5 2. Nf3 Nc6 3. d4 White strikes in the centre early with 3.d4. Black almost always responds with 3...exd4. White's
Scotch_Game
Chess opening
Gambit Declined (or QGD) is a chess opening beginning with the moves: 1. d4 d5 2. c4 e6 Black declining the pawn offered by White in the Queen's Gambit
Queen's_Gambit_Declined
Chess opening
characterised by the moves: 1. e4 e6 This is most commonly followed by 2.d4 d5. Black usually plays ...c5 soon after, attacking White's pawn centre and
French_Defence
Tabular arrangement of the chemical elements
f1 f2 f3 f4 f5 f6 f7 f8 f9 f10 f11 f12 f13 f14 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 p1 p2 p3 p4 p5 p6 s1 s2 1s H He 2s Li Be 2p 3s B C N O F Ne Na Mg 3p 4s Al
Periodic_table
Chess opening
Attack is a chess opening system characterized by White playing pawns to d4 and e3, bishop to d3, knight to d2, and then completing the Stonewall structure
Stonewall_Attack
Chess opening
The Queen's Gambit is the chess opening that begins with the moves: 1. d4 d5 2. c4 It is one of the oldest openings and is still commonly played today
Queen's_Gambit
algebraic chess notation. Alekhine Gambit – B02 – 1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.d4 d6 5.Nf3 Bg4 6.Be2 dxe5 7.Nxe5 John Tracy Gambit – B02 – 1.e4 Nf6 2.Nf3 Krejcik
List_of_chess_gambits
Chemical compound
Deuterated methanol (CD3OD) is a form (called an isotopologue) of methanol (CH3OH) in which the hydrogen atoms ("H") are replaced with deuterium (heavy
Deuterated_methanol
Motor vehicle
The Delage D4 was a 4-cylinder compact luxury car in the 8CV car tax band produced by the manufacturer between 1933 and 1934. With the D4, the manufacturer
Delage_D4
Sacrificial chess opening
Blackmar–Diemer Gambit (BDG): 1.d4 d5 2.e4 dxe4 3.Nc3 followed by 4.f3 From's Gambit: 1.f4 e5 Staunton Gambit: 1.d4 f5 2.e4 Budapest Gambit: 1.d4 Nf6 2.c4 e5 Scotch
Gambit
2016 Indian TV series or programme
D4 - Get Up and Dance is an Indian dance fiction television series that premiered on Channel [V] India on February 22, 2016. The show incorporates elements
D4_-_Get_Up_and_Dance
1.d4 d5 2.c4 Amazon Attack of the Queen's Pawn Opening – 1.d4 d5 2.Qd3 American Attack of the Dutch Defense, variation of the Staunton Gambit – 1.d4 f5
List of chess openings named after places
List_of_chess_openings_named_after_places
Species of plant
5-quinide 4′-Hydroxyflavanone 4',7-Dihydroxyflavone 6β-Naltrexol 6β-Naltrexol-d4 18-MC α-Gliadin β-Chlornaltrexamine β-Funaltrexamine Akuammine Alvimopan AM-251
Mitragyna_speciosa
Swedish compact hatchback
January 2015, these engines are available in the new V40 D4 (replacing the previous five cylinder D4) and V40 T5 (replacing the petrol five cylinder T5).
Volvo_V40_(2012–2019)
Motorway in the Czech Republic
D4 motorway (Czech: Dálnice D4) connects Prague and the western half of the South Bohemian Region. It follows the route of the historic Golden Trail and
D4_motorway_(Czech_Republic)
Group of symmetries of a regular polygon
of order 8 (D4) is the smallest example of a group that is not a T-group. Any of its two Klein four-group subgroups (which are normal in D4) has as normal
Dihedral_group
Chemical compound
Leukotriene D4 (LTD4) is one of the leukotrienes. Its main function in the body is to induce the contraction of smooth muscle, resulting in bronchoconstriction
Leukotriene_D4
Chess opening
be followed by 5.d4 or 5.Re1. The main alternative is 4.d3, the Anti-Berlin, where White gives up the possibility of playing d2-d4 in one move in order
Berlin_Defence
Initial moves of a chess game
controlling d4, they invite transposition into a 1.d4 opening, White may use the English in an attempt to avoid certain lines after 1.d4. For example
Chess_opening
- originally launched by Bothtec on November 24, 2001, and now managed by D4 Enterprise. There have been a total of 1173 titles added to the service, originating
List_of_Project_EGG_games
Association football tournament in Qatar
Mexico C4 Poland Group D Pos Team D1 France D2 Australia D3 Denmark D4 Tunisia Group E Pos Team E1 Spain E2 Costa Rica E3 Germany E4 Japan Group
2022_FIFA_World_Cup
Chess opening
Game is a broad term for a group of openings characterised by the moves: 1. d4 Nf6 They are all to varying degrees hypermodern defences, where Black invites
Indian_Defence
Reciprocating internal combustion engine
injection, some have D4 direct injection, and others have a combination of direct injection and multi-port fuel injection or D4-S. The GR series replaces
Toyota_GR_engine
Swiss railway station
Root D4 railway station (German: Bahnhof Root D4) is a railway station in the municipality of Root, in the Swiss canton of Lucerne. It is an intermediate
Root_D4_railway_station
Motor vehicle
seconds. It has a curb weight of 1,940 kg (4,277 lb). Audi S8 (D3) Audi S8 (D4) was produced from 2012 to 2018, with a mid-facelift in 2015. It is powered
Audi_S8
Chess opening
correspond to a 1.d4 line. After 2.c4 c6: 3.d4 transposes to the Slav Defense. After 3.e3 Nf6: 4.d4 transposes to the Slow Slav. After 4.Nc3 e6, 5.d4 transposes
Réti_Opening
Chess opening
Ufimtsev Defence. Black allows White to establish a centre with pawns on d4 and e4, but plans to undermine it later. It can lead to both sharp and solid
Pirc_Defence
New Zealand rock band
Zealand rock band led by Jimmy Christmas, formerly of The D4. Christmas formed Luger Boa after The D4 decided to take an indefinite break. Christmas describes
Luger_Boa
Chess opening
system in chess characterized by the moves (with any first move by Black): 1. d4 2. Bf4 In addition to these moves, in the standard system, White supports
London_System
Chess opening
which John Nunn recommends 4.d4, preferring principled opening play to the unclear tactics resulting from 4.Qh5+. After 4.d4, if 4...Qh4? (Kosten's original
Latvian_Gambit
Psychoactive drug, often called ecstasy
α2B 1,785 α2C 1,123–1,346 β1, β2 >10,000 D1 >13,600 D2 25,200 D3 >17,700 D4 >10,000 D5 >10,000 H1 2,138–>14,400 H2 >10,000 H3, H4 ND M1 >10,000 M2 >10
MDMA
Chess opening
chess opening where White plays d4 and c4 and fianchettoes the white bishop on g2. A common opening sequence is 1.d4 Nf6 2.c4 e6 3.g3, although various
Catalan_Opening
Chess opening
Blackmar–Diemer Gambit (or BDG) is a chess opening characterized by the moves: 1. d4 d5 2. e4 dxe4 3. Nc3 White intends to follow up with f3, usually on the fourth
Blackmar–Diemer_Gambit
American singer and actress (1963–2012)
Effective Set / 'I Look to You' by Whitney Houston". Los Angeles Times. pp. D1, D4. NewsBank 12A548F75CFCF1B8, 12A548F7598FB768. ProQuest 1964993656, 422428401
Whitney_Houston
Semi-submersible offshore drilling rig
decompression chamber as seen from above at the moment the accident occurred. D1–D4 are divers; T1 and T2 are dive tenders. The trunk is the section that joins
Byford_Dolphin
Andean stringed instrument
armadillo shell (in the manner of older charangos). Common tunings include: D4 D4, G4 G4, B4 B3, E4 E4, B4 B4 (A fourth below charango, sometimes called Argentinian
Ronroco
Chess opening
popular of the twenty legal opening moves White has, behind only 1.e4 and 1.d4. Sometimes the name "Réti Opening" is used for the opening move 1.Nf3, although
Zukertort_Opening
Chess opening
line which Fischer aimed to avoid. White almost always replies with either 4.d4 or 4.Bc4. In the Encyclopaedia of Chess Openings, the Fischer Defense is given
King's Gambit, Fischer Defense
King's_Gambit,_Fischer_Defense
Chess opening
Horwitz Defence) is a chess opening defined by the moves: 1. d4 e6 This response to White's 1.d4 is so named "because it may lead to the French Defence, or
Franco-Indian_Defence
Chess opening
Gambit) 4.Nf3 g5 5.Bc4 g4 6.0-0 (Hamppe–Muzio Gambit) 4.Nf3 g5 5.d4 (Pierce Gambit) 4.d4 (Steinitz Gambit) 3.Bc4 Nf6 4.d3 (Berlin-Vienna Hybrid Variation)
Vienna_Game
Chess opening
the Scotch Game (3.d4) after 3...exd4 4.Nxd4 Nf6 5.Nc3. The most common continuations are 4.Bb5, the Spanish Variation, and 4.d4, the Scotch Variation
Four_Knights_Game
D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D20 D19 D18 D17 D16 D15 D14 D13 D12 D11 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D40 R.I. Running D39 Ore. Running D38 N
2026 United States Senate elections
2026_United_States_Senate_elections
Its vertex figure is a 24-cell. The vertex arrangement is called the B4, D4, or F4 lattice. Hexadecachoric tetracomb/honeycomb Demitesseractic tetracomb/honeycomb
16-cell_honeycomb
Class of G protein-coupled receptors
receptors, D1, D2, D3, D4, and D5. The D1 and D5 receptors are members of the D1-like family of dopamine receptors, whereas the D2, D3, and D4 receptors are members
Dopamine_receptor
Chess opening
popular option. White can choose from multiple setups. A common line is 4.d4 c6 (or 4...e5) 5.Nf3 Nf6 6.Bc4 Bf5 (6...Bg4 is a different option. Even though
Scandinavian_Defense
Chess opening
Queen's Gambit Accepted (QGA) is a chess opening beginning with the moves: 1. d4 d5 2. c4 dxc4 The Queen's Gambit Accepted is the third most popular option
Queen's_Gambit_Accepted
Chess opening
The Trompowsky Attack is a chess opening that begins with the moves: 1. d4 Nf6 2. Bg5 White prepares to exchange the bishop for Black's knight, inflicting
Trompowsky_Attack
Group of symmetries of the square
In mathematics, D4 (sometimes alternatively denoted by D8) is the dihedral group of degree 4 and order 8. It is the symmetry group of a square. As an example
Dihedral_group_of_order_8
Chess opening
Nc6, leading to the Ruy Lopez (3.Bb5), Italian Game (3.Bc4), Scotch Game (3.d4), and others. Black's most important alternative to 2...Nc6 is 2...Nf6, Petrov's
Open_Game
Chess opening
named after Aron Nimzowitsch. Play usually continues 2.d4 d5 (the Scandinavian Variation) or 2.d4 e5 (the Kennedy Variation). White can also play 2.Nf3
Nimzowitsch_Defence
Chess opening
the move: 1. e4 It is the most popular opening move in chess, followed by 1.d4, the Queen's Pawn Game. Black's most common replies are 1...c5 (the Sicilian
King's_Pawn_Game
Chess match between Ding Liren and Gukesh Dommaraju
(ECO A08) 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. 0-0 cxd4 6. Nxd4 Nge7 7. c4 Nxd4 8. Qxd4 Nc6 9. Qd1 d4 10. e3 Bc5 11. exd4 Bxd4 12. Nc3 0-0 13. Nb5
World_Chess_Championship_2024
Chess opening
opening characterised by the moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Other move orders, such as 1.c4 e6 2.Nc3 Nf6 3.d4 Bb4, are also feasible. In the Encyclopaedia
Nimzo-Indian_Defence
Geometric arrangements of points, foundational to Lie theory
symmetry construction of the cuboctahedron. D4 has additional symmetry called triality. The twenty-four D4 root vectors are expressed as the vertices of
Root_system
Chess opening
the pawn on f4, aiming to prevent it from being recaptured after a later d4 and Bxf4 from White. The move also threatens to kick White's knight on f3
King's Gambit, Classical Variation
King's_Gambit,_Classical_Variation
Chess opening
Queen's Indian Defense (QID) is a chess opening defined by the moves: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 The opening is a solid defense to the Queen's Pawn
Queen's_Indian_Defense
Chess opening
develops the bishop to an active square. The classical main line is 4.c3 Nf6 5.d4 exd4, credited to 17th century player Gioachino Greco and extensively analyzed
Giuoco_Piano
Chemical compound
vitamin D, also known as vitamin D4. It has the systematic name (5Z,7E)-(3S)-9,10-seco-5,7,10(19)-ergostatrien-3-ol. Vitamin D4 is found in certain mushrooms
22-Dihydroergocalciferol
Type of chess opening
Open Sicilian, where White plays 2.Nf3, intending 3.d4 cxd4 4.Nxd4. The Najdorf Variation (2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6) is the most frequent of
Semi-Open_Game
Pharmaceutical compound
5-MeO-DMT-d4, also known as α,α,β,β-tetradeutero-5-MeO-DMT, is a serotonin receptor modulator and putative psychedelic drug of the tryptamine and 5-methoxytryptamine
5-MeO-DMT-d4
German band (1980–1988)
P16.D4 was a German (Frankfurt-based) electronic noise music collective, active primarily from 1980 to 1988. P16.D4's core techniques centered on analog
P16.D4
Chess opening
Italian Game, and Scotch Game. White's most common response is 3.Nxe5, but 3.d4 and 3.Nc3 (most often leading to the Four Knights Game) are also common, and
Petrov's_Defence
Human mitochondrial DNA (mtDNA) haplogroup
3%). There are two principal branches, D4 and D5'6. D1, D2 and D3 are subclades of D4. D1 is a basal branch of D4 that is widespread and diverse in the
Haplogroup_D_(mtDNA)
D4
D4
D4
D4
Boy/Male
Tamil
Arpil name comes from Arpit, Dedicated
Boy/Male
Arabic
Lion
Girl/Female
Hindu, Indian
Wonder
Girl/Female
Gujarati, Hindu, Indian, Sanskrit
Beautiful Deer
Male
Egyptian
, a son of Rameses II.
Male
Italian
Italian form of Latin Antoninus, possibly ANTONINO means "invaluable."Â
Surname or Lastname
English, German, and Jewish
English, German, and Jewish : patronymic from Joseph.
Male
Italian
Italian form of Hebrew David, DAVIDE means "beloved."
Male
Iranian/Persian
(جهانگیر) Persian name JAHANGIR means "world-conqueror."
Boy/Male
Muslim/Islamic
Inevitable lion, powerful
D4
D4
D4
D4
D4