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The most popular response to 2. Bc4 is 2...Nf6, the Berlin Defence, which immediately renders the scholar's mate non-viable. In the continuation 2...Bc5 (the Classical Defence) 3. Qh5, Black can defend against both scholar's mate and the threatened 4. Qxe5+ with 3...Qe7, intending to gain a tempo later with 4...Nf6. The further continuation 4.
The (2,3,7) hyperbolic triangle group is a subgroup of the group of norm 1 elements in the quaternion algebra generated as an associative algebra by the pair of generators i, j and relations i2 = j2 = η, ij = − ji. One chooses a suitable Hurwitz quaternion order in the quaternion algebra. Here the order is generated by elements.
Caldwell catalogue. Montage of Caldwell Catalogue objects. The Caldwell catalogue is an astronomical catalogue of 109 star clusters, nebulae, and galaxies for observation by amateur astronomers. The list was compiled by Patrick Moore as a complement to the Messier catalogue. [ 1]
Scholar-official as a concept and social class first appeared during the Warring States period; before that, the Shi and Da Fu were two different classes. During the Western Zhou dynasty, the Duke of Zhou divided the social classes into the king, feudal lords, Da Fu, Shi, ordinary people, and slaves.
Of the cohort observed, 54 people (13.3%) had this subtype. Inching Pace (PD-I), which has mild baseline symptoms and relatively mild progression. Of the cohort observed, 145 people (35.7%) had ...
History of PDF. The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of ...
The number of sexual assaults in the U.S. military is likely two to four times higher than government estimates, according to a new study out of Brown University. The study, completed by the Costs ...
On a recent walk, Dobby, an adorable Dachshund, and his dad Paul encountered a cat. Paul said that Dobby was trying to be 'big and hard' and intimidating to the cat. It didn't work out that way ...