OCTOBEB 1, 1891.] 



KNOWLEDGE. 



199 



satellite at lib. .3m. On the 25tb an eclipse reappearance 

 of the first satellite at 5h. 42m. ISs. On the 2(ith an eclipse 

 reappearance of the second satellite at lOh. 14m. iHs. On 

 the 30th a transit ingress of the third satellite at 7h. 27m. ; 

 an occultatiou disappearance of the first satellite at 9h. 43m.; 

 a transit egress of the third satellite at lOh. r54m. On the 

 31st a transit ingress of the first satellite at Oh. 51m., and 

 of its shadow at 8h. 2m. ; a transit egress of the satellite 

 at Oh. 10m., and an occiiltation disappearance of the fourth 

 satellite at 9h. 20m. During the month Jupiter describes 

 a very short retrograde path in Aquarius, but without 

 approaching any naked-eye star. 



Saturn does not rise before midnight, and Uranus is in 

 conjunction with the Sun on the 25th. We defer an 

 ephemeris of Neptune till November. 



October is rather a favourable month for observations of 

 shooting stars, the most marked shower being that of the 

 Ononids, from the 17th to the 20th of the month, the 

 radiant point of which is situated in 7h. Cm. R.A. and + 

 15 " declination. The radiant point rises at the date named 

 at about 8h. 45m. p.m., and sets shortly after 4 a.m. 



The Moon is new at Oh. 58m. a.m. on the 3rd; enters 

 her first quarter at lOh. 57m. p.m. on the 10th ; is full at 

 Ih. 45m. P.M. on the 17th ; and enters her last quarter at 

 111. 56m. P.M. on the 24th. She is in apogee at 9-8h. p.m. on 

 the 1st (distance from the earth 252,600 miles), in perigee at 

 5-4h. P.M. on the 10th (distance from the earth 222,510 

 miles), and in apogee again at 4-7h. a.m. on the 29th (dis- 

 tance from the earth 252,300 miles). Her greatest eastern 

 libration is at 2h. 16m. p.m. on the 10th, and her greatest 

 western at 2h. 34m. p.m. on the 22ud. 



(!E^css ColttmiT. 



By C. D. LococK, B.A.O.wn. 



Special Notice to Correspondents. — Till farther notice, 

 communications for this column should be addressed 

 " Chess Editor, Knowli'ihjc ()ilii:c,3-i(j, llii/li Jlnlboni, W'.C." 



Solution of Problem No. 3 (% C. J>. L.) : 1. Kt to B6, 

 and mate's next move. 



Correct Solutions from : — Alpha, K, T. E. Kerrigan, 

 J. Landau, W. T. Hurley, M. B. (.Jesmond), H. S. 

 Brandretti, Giu. Pianissimo, T. A. Earl, C. T. Blanshard, 

 R. W. Houghton, W. E. B., F. E., E. B., White Knight, 

 E. T. M., C. S., G. F., J. G. Ellis, A. -J. Luisham, Betula, 

 A. Eutherford, T., and J. Taylor— (23 all correct). 



Alpha.— MiQx 1. . . QQ5, 2. KtB3 is not mate. You 

 also curiously give 2. QB5 in reply to 1. . . QK5. There 

 is another variation, 1. . . Q157, 2. KtQ3. 



11 '. T. lluiiiii. — Duals following purposeless defences are 

 no defect. In the present case, considcrmg the freedom of 

 the Black Queen, it seems surprising that there are not 

 more. 



T. A. Karl. — Positions maybe diagrammed by means of 

 either (1) rubber stamps and coloured inks, or (2) coloured 

 pencils, or (3) circles round letters representing black 

 pieces, <•..'/., rp)=Black Pawn. 



din. I'iniiissimo. — Certainly it is easy: but no two-movers 

 are difficult. 



Wliib' Kniiilit. — As this column goes to press on the 12th 

 of each month, extension of time is an impossibility. 

 Eeply to you last month was sent with proofs. 



T. 11. I!illi)iiit(in. — You did not merely claim "no 

 solution." You assuiiifd the mislakf, and scut in a solution, 

 by which you bad to be judged. 



■ Betida. — The Bishop variations are not new, but they 

 are certainly no defect, except for the fact that they have 

 no connection with the key-move. The duals with the 

 Knight are also harmless. 



A. J. LulsJmin.—Kyevy competitor had three courses 

 open — (1) Simply to claim " no solution," (2) To write for 

 information, (3) To take for granted the very obvious 

 misprint, and send solution accordingly. Merely ignoring 

 the problem is not sufficient. 



C. T. B. — Apropos of " Chess on the brain," did you 

 notice that your three-mover (No. 42) in the Liverpool 

 Mercuri/ is a rudimentary picture of your initials ? 



PROBLEM (No. 4). 

 (From a Foreign Paper. 



BLiCK. 



is 2 ^m 



m^, ?. m 



r/M & '^^ ^m ^m 



\^ 



^ 



p^ 



White. 



White to play, and mate in three moves. 



Special Notice. — Solvers are particularly requested (1) 

 To read the notice at the head of this page ; (2) To send, 

 in addition to White's second moves, the moves of Black 

 which compel them. 



Leading Solvers' Scores. 



