208 



• KNOWLEDGE • 



[Sept. 5, 1884. 



1574, and Tycho Brahe determined its place with some accuracy. 

 There is a minute telescopic star (No. 129 of d'Arrest's Catalogue) 

 within 1' of this position, which was discovered to be slightly 

 variable by Hind and Plummer in 1873. There is no record of the 

 appearance of any new star in Virgo, B.C. 4 ; but that very doubt- 

 ful authority, the Bohemian astronomer, Cyprianns Leovitius, asserts 

 that he found, in a manuscript, a record of the appearance between 

 Cepheus and Cassiopeia in 945, and again, iu the same neighbour- 

 hood, in 1264, of a new star, which it has been thought may have 

 been Tycho's. Assuming such conjecture to have been correct, the 

 star should have reappeared in 1880. "Jlercator" is wrong, im 

 limine, in his dates, and quite obviously ignorant of the veiy rudi- 

 ments of astronomy, or he could never have imagined two stars, 

 separated by an arc of more than 120' in the heavens, to be one 

 and the same object. 



(Bur Ct)t6s! Column. 



By Mephisto. 



P to Q6. Thus 33. 



" Deak Sir, — I have been much interested in the game published 

 in this week's Knowledge. But, on going over the moves sug- 

 gested as a probable continuation, I cannot see that White can 

 really force the game. I enclose a rough analysi s to show y on 

 where my difBculty lies. It seems to me that 33. Ktto K7 (ch) is 

 a complete answer to 33. P to Q6. After 32. Kt^x Kt, Black has a 

 Book to the good, and therefore can afford a consid erable sacr ifice 

 to beat off White's present attack. I tried 33. K x P (ch;, but 

 the Whit« King can escape. I cannot see any escape after 

 33. KttoK7 (ch). 



" I think White's best play is to get his B to Q3 before playing 

 BtoRTJch) gj Bto Q3 (ch) 35 pj^Qg. gut 



KtoRsq. Kt oKtsq. 



even then Black may follow with 35. KttoK7 (ch), and I don't 

 think White can dare capture the Knight. Then, again, if 

 Black can get one more check and then attack the White Queen 

 with Kt, he can safely challenge the exchange, or can sacrifice his 

 Knight to give his Queen time to take the QP and retire to defend 

 KBP. 



" Altogether, the position is such a good one, that I think yon 

 would interest other readers as well as myself if you would analyse 

 it for us a little further. " W." 



We agree with our correspondent that the position is an 

 interesting one. We ought to have been a little more 

 remark about 32. Kt x Kt. It is all-im- 

 portant in such critical posi- 



explicit in onr 



Position after White's 32nd 

 move. 



Buck. 



37 



■Whits 

 R X Kt(a) 



38. 



K to R sq. 



tions to find the correct way of 



playing, as without it a sure game 



may be lost. If in this position 



32. Kt x Kt then we must first 



avoid losing the important B by 



a ch with Kt on Kt6 ; we, there- 



, „„ B to R7 (ch) „■ 



I ore play 33. r— i — - . The 



^ ■' K to R sq. 



]i being now very well posted, we 

 proceed to 34. P to Q6, which 

 valiant P the Q cannot take on 

 account of a mate in three. 

 But if 34. Kt to K7 (ch) 

 K to R sq. gg ^ ^^ JJ2. To 



KttoKtG(ch) 



avoid the threatened 

 three Black has 

 better than 36, 



mate m 

 nothing 

 Kt to B8 (ch) 



- , , (best). 



QxP(ch) QtoB2 ^ ' 



We did not play R to B4 as Black could have replied with Q x B, 



followed by KxB remaining with two R's against the Q and a 



bettor game. Now White cannot do better than play 



B t o Q3 (ch) ,„ Q to R7 (ch) ^^ Q to R8 (ch) 



■ K to Kt sq. ■ K to B sq. " K to K2 



4&. Q"^^"''^ 43. Qx Rand White wins. 

 K to B sq. 



(a) This leads to a win if correctly followed up. A more 

 decisive yet simpler move is 37. K to E3, which wins at once, as 

 Black cannot check with the (Q) on account of B coming on 

 B5 ^vith a check. If QxP 38. B to KtG (ch), K to Kt sq. 

 39. Q to R7 (ch), K to B sq. 40. QxP mate, or if Q to R2, the Q 

 mates in two moves on R8. 



PROBLEM No. 126. 



By I. G. 



Black. 



m WMn^wm ¥M 





TVhitb. 

 White to play and mate in two moves. 



ANSWERS TO CORRESPONDENTS. 

 »*, Flease address Chess Editor. 

 Jas. G. Reeve. — See above letter. Solution incorrect as 

 1. K to R sq. 



Correct solutions received Problem No. 124. — Fred Kingley, J. K. 

 Milne, H. A. N., M. T. Horton, A. W. Overton. 



CONTKKTS OP Xo. 148. 



Xeit Year's Exhibition. By In- 



Tentor 169 



Tbe Entomolo^ of a Pond. IIUkk.) 



BtE. A. Buller 170 



The' Physics of the Earth's Cmst. 



Bt R. A. Proctor 171 



The" Chemistry of Cookery. XLI. 



Authorities on Tea and Coffee. 



By W. Matlieu Williams 172 



The" Electro-Magnet. (Illut.) By 



W. Slingo 173 



The Earth's Shape and Motions. 



III. The Annual Motion of the 



Sun and Stars. By E. A. Proctor 175 



Pie* 



Our Supply of Coal 176 



A Practical Method of EstimatiDg 



Distances. (Uluf.) 177 



Pleasant Hours with the Micro- 

 scope. (lUvn.) By H. J. Slack . 17S> 



Photo^aphr for Amateurs 190 



Editorial Gossip 182 



Face of the Sky. By F.K.A.S 182 



Reviews 183 



Miscellanea 184 



Correspondence : Sunflowers — Is 

 Tea Injurious? — Small-Poi and 

 Vaccination — August Meteors, &c. 185 

 Our Chess Column 188 



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