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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 middlegame on White's kingside; however, it also weakens Black's kingside to an extent (especially the e8–h5 diagonal). [ 1 ] Like its 1.e4 counterpart, the Sicilian Defence, the Dutch is an ...
4.Bc4 Bg7 5.Qe2 is a sharp try for advantage; 5...Nc6 can lead to hair-raising complications after 6.e5, when Black's best line may be 6...Ng4 7.e6 Nxd4 8.Qxg4 Nxc2+, avoiding the more frequently played 6...Nxd4 7.exf6 Nxe2 8.fxg7 Rg8 9.Ngxe2 Rxg7, which has been generally considered to lead to an equal or unclear position, though White has ...
Singapore: Section Automatic Weapon formerly used by the Singapore Armed Forces. [43] Colt IAR6940: 5.56×45mm NATO United States: IAR6940E-SG Current Section Automatic Weapon of the Singapore Armed Forces. [44] [45] M4 carbine: 5.56×45mm NATO United States: Colt M4/M16A2E Early Colt M4 in service with the Naval Diving Unit and Special ...
Black can also play 3...d6, when 4.d4 transposes to the Philidor Countergambit (1.e4 e5 2.Nf3 d6 3.d4 f5!?), which was favoured by Paul Morphy in the mid-19th century and is still seen occasionally today. [28] [30] Today, however, Black's response is considered to be 3...fxe4. 4.Nxe4 d5 5.Nxe5 dxe4 6.Qh5+ g6 7.Nxg6 hxg6 8.Qxh8 Be6 9.Qe5 Kf7 10 ...
Semyon Alapin. Parent. Sicilian Defence. In chess, the Sicilian Defence, Alapin Variation is a response to the Sicilian Defence characterised by the moves: 1. e4 c5. 2. c3. It is named after the Russian master Semyon Alapin (1856–1923). For many years, it was not held in high regard, since 2...d5 was thought to allow Black easy equality. [1][2]
Fire-resistance rating. A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test. This can be quantified simply as a measure of time, or it may entail other criteria, involving evidence of functionality or fitness for purpose.
Passive fire protection. Fire-resistance rated wall assembly with fire door, cable tray penetration and intumescent cable coating. Passive fire protection (PFP) is components or systems of a building or structure that slows or impedes the spread of the effects of fire or smoke without system activation, and usually without movement. [1 ...
Philidor's Defence. The Philidor Defence (or Philidor's Defence) is a chess opening characterised by the moves: 1. e4 e5. 2. Nf3 d6. The opening is named after the famous 18th-century player François-André Danican Philidor, who advocated it as an alternative to the common 2...Nc6. His original idea was to challenge White's centre by the pawn ...