96 



KNOWLEDGE 



[April 1, 1898. 



CORBESPONDENCE GAME. 



(Concluded.) 

 Position after White's Thirteenth Move 



Black (i:). 



14. Q to ESeh (j) 



15. QxKtP 



16. Kt to Q2 (l) 



17. P to KKt3 (m) 



18. Kt to K4 (o) 



19. R to Qsqeh 



Black. 



13. R to Q4 (J) 



14. K to Q2 



15. ExP (/.') 



16. R to KKt4 ! 



17. KB to B4 (n) 



18. QxKt 



19. B to Q4 



Notes. 



(i) The most attacking continuation. 13. . . . Q to Q5 

 ■would be perfectly safe, as Black must exchange Queens 

 with a slightly inferior development. 



(j) He should certainly keep the check in reserve. 

 Other continuations are most interesting, cr/. ■ — 



I. 14. Kt to B-l (.'), RxP; 15. E to Qsq, B to Q3 (if 



15. P to KKt3, Q to E6, threatening Q x Rch ! as well as 

 E to KE4) ; 16. Q to E8ch (?J, K to Q2 ; 17. Q x E, and 

 Black mates in four moves. 



II. 14. Kt to tji', B to KKt5; 15. Kt to B3 (if 15. Kt to 

 B4, B to QB4 ; and if then White checks and wins the R, 

 Black mates in two moves), 15. . . . BxKt; 16. PxB, 

 RxP (or ... P to KKt4!); 17. E to Qsq, E to Q4 ; 

 18. B to K3, Q to E6 (threatening B to Q3) ; 19. R x R, 

 P X R ; 20. P to KB4, P to KKt4, etc. 



III. 14. B to KS! RxP; 15. R to Qsq (if 15. Kt to 

 Q2, B to Q4), 15. ... B to Q4 (or a) ; 16. Kt to B3 ! (if 



16. P to QB4, Q to KKt5, or Q x BP). 



(a) 1>. . . . B to Q3 ; 16. Q to RHch, K to Q2 ; 17. 

 Q x R, E X B ; 18. P to KKt3, Q to Kt5 ; 19. Kt to B3, 

 R moves, etc., with a good game. 



IV. 14. Pto£:A'(3(.'), QtoR6(orQtoQ5); 15.BtoB4, 

 B to QB4; 16. Q to RBch, K to Q2 ; 17. QxR, B to 

 KKt5! (17. ... RxP, or 17. ... R to Q7, is very 

 tempting, but is met by 18. Kt to B3, the only move in 

 each case) ; IS. P to K6ch, K to K2 ; 19. R to Ksq (best) 

 (if 19. PxP, Black mates in three moves), 19. . . . 

 B X Pch probably wins. 



(/,•) 15. . . . B to QB4 would threaten Q xPch, but is 

 much inferior to the Rook's move. 



(l) Natural enough, but he overlooks the bolt from the 

 blue. In any case he has a bad game now. 



(jn) There is no good defence to the numerous mates 

 latent in the position, e.g. : — 



I. 17. Kt to B3 (or anywhere except to K4), RxPch 

 and wins. 



II. 17. R to Ksq, Q to R6 ! 18. P to KKt3, B to Q4 ; 



19. Kt to K4, E to E4 ; 20. B to B4, Black mates in 

 three moves. 



III. 17. P to KB4, B to B4ch ; 18. K to Esq, RxP 

 and wins. 



IV. 17. R to Qsq, RxPch; 18. KxE, Q to Kt5ch wins, 

 v. 17. Q X RP, Q to R6 (B to Q4 is even stronger j ; 



18. P to KKt3, B to Q4 ; 19. P to KB3, R x Pch. 



VI. 17. Kt to Ki, E X Pch (or a ; but if 17. ... R 

 toQKt4, 18; QxEP, QxKt; 19. E to Qsqch prolongs the 

 game); 18. KxE, BtoEGch! 19. K to B3 (best), Q to 

 Kt5ch ; 20. K to K3, B x E and wins, for if 21. Q to Kt3, 

 P to KB4. 



(a) 17 BtoQ3(?); 18. Pto KKt3 (?) (or i.), Q xKt; 



19. B x E, B to Q4 ! 20. P to KB3, B to B4ch ; 21. K to 

 Kt2 (if 21. K to Esq. mate in two), 21. ... Q to K7ch ; 

 22. K to E3, B to K3ch ; 23. P to Kt4, B to Q3 ! and 

 wins. 



(i.) 18. KttoKtS! Eto KR4 ; 19. Pto KE3, BxP; 



20. E to Qsq ! (not 20. Kt x E, on account of the winning 

 reply, Q to Kt5). 



yn) Much stronger than the more showy move, 17. . . . 

 B to Q4 (threatening Q x EPch), for White could then 

 reply 18. Kt to B3 (forced), BxKt; 19. BxE, QxB 

 (best) ; 20. Q X EP, B to Q3 ; 21. KE to Ksq, etc. The 

 waiting move made leaves White absolutely without re- 

 source. 



(o) Any reader who may have persevered so far will be 

 able to work out for himself the forced (and in some cases 

 beautiful) mates resulting from any other move. We give 

 only one variation: 18. E to Qsq, RxPch; 19. K to 

 Esq (A), B to Q4ch ; 20. Kt to B3 (or 20. P to B3, Q to 

 Kt5!), 20. ... R to Kt8ch; 21. ExE, QxBP! 



(a) If 19. K to Esq, R to KtSch ; otherwise Q x Pch, 

 B to Q4ch, and Q to B6ch. 



KNOWLEDGE, PUBLISHED MONTHLY. 



Contents oi No. 148 (February). 



The Floor of u Contiueut. By 

 Grenville A. J. Cole, m.r.i.a., 



F.G.s. {lUuhtratcd) 25 



Eccuiomic Botany. By John E. 



Jackson, a.l.s., etc., 28 



From a Hole in the Mudflats. By 

 Harry F. Witherby, F.z.s., 



M.B.o.c. (Ulustraled) 29 



Liqnid Fluorine. By C. F. 

 Townseud, f.c.s. (Illustrated) 31 



Letters 33 



British Ornithological Notes 36 



Science Notes 37 



Notices of Books 37 



Total Solar Eclipse, January 22nd, 



Contents of No. 149 (March). 



PAOE 



The Total Solar Eclipse, January 

 22,1898. By E.Walter Maunder, 

 F.E.A.S. (lUvMrntti) 49 



British Bees, — I. By Fred. Enock, 

 F.L.S., F.E.S., etc. [UlusirateA) 50 



The Vinesrar EeL By C. Ains- 

 worth Mitchell, b.a., f.i.c 53 



Botanical Studies. — II. Coleo- 

 chaete. By A. Vanghan Jennings, 

 F.L.S., F.o.S. {lUustrated) 54 



Cloud Belts. By Wm . Shackleton, 



F.E.A.S 



56 



Photograph of the Spiral Nebula 



Messier 33 Trianguli. By Isaac 



Roberts, D.sc, F.R.S 39 



Moon in Eclipse, January 7th, 



1898. By L. Paxton 40 



The Spectra of Brisht Stars. By 



E. W. Maunder. F.K.A.s 40 



Ancient Red Deer Antlers. Bv 



E.Lydekker,B.A.,F.B.s. (Illiis.) 43 

 Notes on Comets and Meteors. 



B.7 W. F. Denning. F.E.A.S 46 



The Face of the Sky for February. 



By Herbert Sadler. F.R.A.S 47 



Chess Column. By C. B. Locock 47 



Plate.— Spiral Nebula Messier 

 33 Trianguli. 



A New Theory of the Milky Way. 



ByC. Eastoo 57 



Letters 60 



The Masses and Distances of 



Binary Stars. By J. E. Gtore, 



j F.E.A.S (12 



i Science Notes 63 



i Notices of Books 63 



] British Ornithological Notes 66 



Obituary 67 



The Karkinokosm, or World of 

 Crustacea.— II. By the Rev. 

 Thomas R. R. Stcbbing, ma., 



F.E.S., y.L.S. {llhu^trateA) 67 



Notes on Comets and Meteors. 



By W. F. Denning, f.b.a.s. . 70 

 The Face of the Sky for March. 



By Herbert Sadler, f.e.a.s, 71 



Chess Column, By C, D. Locock 71 

 Plate,— The Equatorial Cloud-Belt. 



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