No. 52 (Vol. IV)

July 1978 (3 months late)

ENDINGBURGH . . .Five out of nine papers presentedat a two-day conference on "Ad-vances in Computer Chess" relatedto some aspect of the endgame. Itherefore made sure that I wouldbe there — "there" being Edin-burgh (in one of University buil-dings) on 10-ll.iv.78.

The 'End-Papers'No. 1: For GBR class 0000.10 Bealand Clarke (M.R.B.) described howthe data base of all possible po-sitions had been built up, completewith the correct result and thebest move(s). The data base isthen used, not to play chess,which is trivial, but to test thevalidity of reasoning about pat-terns.No. 2: Bratko described the com-ponents of a system designed toallow a chessplayer to pass on (ie,have converted into a program)his knowledge and skill for anelementary endgame. Using AL1(a specially developed 'AdviceLanguage One') tables comprising'conditions', 'rules' and 'advicelists' are constructed, rather likethe well know 'decision tables'. Analgorithm for 0100 was created inonly a few days, and for the farmore difficult 0103 six weeks werespent finding 12 pieces of 'advice'.Proving there correctness isanother matter . ..No. 3. Niblett and Kopec descri-bed, and later demonstrated, theoptimal 0103 data base. (This workwas in fact first done and pu-blished by Thomas Strohlein, Mu-nich, in 1970, but only a singleanalytical line is contained in hisdoctoral thesis.)l found this topic the most fasci-

nating of the five, since it showedthat the long-awaited contribu-tions of computers to endgametheory are about to begin.Unfortunately, the motivation ofthe workers in the field is thepursuit of artificial intelligence,not the resolution of endgametheory. Developments will be slow.(More in the next issue.)No. 4; Max Bramer described an"optimal algorithm" for 000.10, anending in which the longest wintakes 38 ply. Among many cogentobservations was one concerningthe use of master players to testalgorithms. A master player cannever prove that an algorithm iscorrect. At most he can demon-strate its incorrectness.No. 5: Clarke (M.R.B.) showed theuse of computer programs for dis-secting examples of 'correspondingsquares' (also called 'related' or'coordinate' squares) in OOOO.nnendings. His principal examplewas the Lasker and Reichhelmposition. AJR

"E G" welcomes Neil McKelvie.ANALYTICAL NOTES to replaceWalter Veitch's SpotlightEG-readers with claims of un-soundness now have an address towrite to again. It is on the back pa-ge. Neil McKelvie emigrated fromEngland to the U.S.A. in 1954. Be-fore that he played for the Batter-sea Club in the London League,and for Cambridge University from1950-53. Neil's grandfather was D.O. McKelvie, senior, a well knowdraughts (checkers) player. Neil'scurrent o-t-b ELO (USCF) ratingis 2343. He recalls losing a gameto Heinz Fraenkel — in 14 moves!

AJR

25

REVIEWSSACHOVE KONCOVKY, by Fran-tisek Pithart, Prague 1974. Authoris a Czech o-t-b master. There are246 diagrams on 132 pages in thisnicely produced book. The con-tents are intended to be practical,with each of 6 chapters devoted tothe appropriate piece/pawn ending.Some unusual game positions inthe Q-chapter. The author bor-rows the "+/ = ", " + /-" style no-tation introduced by David Hooperto denote economically the resultswith respectively, W to move, Blto move, from a position.

ZAUBER DES ENDSPIELS, byHenrich Kasparjan, Rau Verlag.Dusseldorf, 1974. The 250 Kaspar-yan studies were selected by thewell-known West German proble-mist Werner Speckmann, who pro-vides an enthusiastic introductionand who also translated from thesource, apparently '269'. Bold typefrom the main line makes the of-ten complex analyses as easy tofollow as one can reasonably ex-pect. Definitely recommeded foranyone with a knowledge of Ger-man but no Russian. (GrandmasterKasparyan himself did not knowthe book was being prepared.)

Shakhmatnaya Kompozitsia 1974-1976 (Moscow, 1978, 225 pages, 139studies and many problems; arti-cles Ed. R M. Kofman. Printing:50,000.)Before reading E. Umnov's articleI was unaware that Troitzky pu-blished 90 studies prior to Rinckpublishing his first. The 18-pagearticle devoted to Troitzky and hisimportance for the study in the20th Century draws on TTC libe-rally for non-Russian sources, buttakes me to task for not explicitlyacknowledging Troitzky's place.On a technicality, p.340 of TTCdoes acknowledge it, though else-where (p.91) I prescribe cautionin attributing personal influencesand specific trends — one is farsafer with events! . . . The remain-der of the Soviet book's studiesare the cream of USSR Individualand Team Championships; selectedWCCT, Petrov Memorial, "Soyuz-Apollo" (ie, Tbilisi 1975 'blitz'tourney) and Socialist CountriesTeam Tourney studies (the com-plete result of the latter still doesnot seem to have been published).Except insofar as other 'foreign'tourneys may be named as sourcesfor Individual Championship dia-grams, they get no mention, theunstated assumption is that thebook is primarily concerned withUSSR performance. AJR

AN ILLUSTRATED DICTIONA-RY OF CHESS, by Edward R.Brace, Hamlyn (London, etc.a, '77.Whatever this 2,000 items work'svalue to players and to the Auto-lycus in all of us, there is no 7aluehere to studies enthusiasts. Theauthor's preface states "Defini-tions are given for all terms usedin . . . endgame studies". This is sountrue as to make one wonderhow William Hartston and Sveto-zar Gligoric allowed their namesto be associated with the 'dictio-nary'. Even the 'illustrations' arebarely more than ordinary dia-grams. AJR

"MODERN CHESS THEORY" isthe title of a new monthly maga-zine. It is devoted exclusively to(guess what) openings.

26

*C* The endgame Rook againstKnight

Computer contributions to ourknowledge of the endgame arehere to stay. We believe that theyare both interesting and impor-tant. We intend to use *C* to iden-tify articles based on computermaterial, and in particular to iden-tify a position generated by a com-puter program.Thomas Strohlein was a post-gra-duate mathematics student at theTechnische Hochschule in Munichwhen he obtained his doctoratewith a 64-page thesis on combina-

torial games. This was in 1970. Histhesis was published, but unnoticedby chessplayers in general. Thethesis sports no diagrams, and theonly chess moves in it relate toour diagramposition, which hashistoric importance. So have hiscomputed findings.Ftrohlein develops an algorithmfor generathing all optimal playwith three or four chessmen, ap-plies it via a computer, and givesthe major results. We summarisethem in a table.

GBRClass

1000

0100

0130

0103

1300

Maximumlength

10

16

18

27

31

No. of positions

1

121

28

2

4

Example

wKal wQb2 bKe6

wKal wRb2 bKc3wKal wRh8 bKd5

wKa4 wRc3 bKa7 bBa6

see diagram

wKa2 wQa3 bKe4 bRh2

Movespublished

no

no

no

yes

no

*C* Thomas Strohlein, 1970p.62 of Untersuchungen iiber

Komfoinatorische Spiele

Win

Solution in EG53.

5+2

The table reproduces, in its centralthree columns, material in Stroh-lein's thesis. 'Maximum length'means that there are no positionswith longer solutions. 'No. of po-sitions' gives the total of distinctpositions showing the maximumlength of solution. W is to play inall cases. In the 1000 and 0100 caseslength includes the mating move.In. the other cases it terminateswith win of the Bl piece (or mate,but without stalemate). 'Movespublished' relates to the contentsof the thesis. AJR

27

DIAGRAMS AND SOLUTIONS

No. 3286 C. M. Bent(x.73)

CommendedMagyar Sakkeletj 1973

Draw 4+5

No. 3286: C. M. Bent. 1. Ke2 Sxdl2. SfIt Kg2 3 Sxh2 Sb2 (Sf2; Se5)4. Sb6 Bc6 (Be6; Sfl) 5. Sg4 Bf3t6. Kel Bxg4 7. Sc4 Sdl/i 8. Se5.i) 7. ... Sxc4 stalemate. Or 7. . .Sd3t 8 Kd2 Bf5 9. Se3t-

No. 3287 J. VandiestOriginal

Win 34-3

No. 3287: J. Vandiest.This study encloses in one and thesame position several previousideas which were published in LaNation Beige (1951), SchakendNederland (1959). (JRH traced!)No. 390 in EG 10. All notes are byJV.I. Sf5/i,A) 1. ... Qb4//ii 2. Kg6/iii Qb6f/iv 3. Kh5/v Qb4/vi 4. Sd6/vii Qbl/viii 5. Qe8f/ix Kg7 6. Qd7f Kg8;x7. Sf5/xi Qgl/xii 8. Se7t/xiii Kf(g)7/xiv 9. Sg6t Kf6 10. Qe7t Kf5II. Qe5 mate;

B) 1. ... Qclf 2. Kh5/xv Qa3/xvi3. Qb8t/xvii Kf7 4. Sd6t Ke6/xviii5. Qg8t Kd7/xix 6. Qe8f Kc.7 7Sb5t wins.i) 1. Kg6? Qg4t 2. Kh6 (2. Kh7Qh4t 3. Sh5 Qe7t) Qh4t 3. Sh5 h2,or 1. Kh6? Qh4t, o r 1. Kf6? Qf7t 2.Kg5 Qxg7t, or 1. Qf6t? Kg8, orfinally 1. Se6t? Kf7 2. Qg7t (Or 2.Qf6t Ke8 3. Sg7t Kd7 =) Ke8 3.Qf8t Kd7 -ii) 1. ... Kf7? 2. Qe7t Kg8 3. Qg7mate, or 1. ... Qg8t? 2. Kh6 Qf7 (2.... Kf7? 3. Qe7 mate) 3. Qb8t Qe84. Qd6t Kg8 5. Qg3t Kf8 6. Qg7mate.iii) Threatening 2. Qh8 mate. Not2. Sd6? Qd2t 3. Kh5 (Best) Qdlt4. Kh6 Qglt 5. Kh7 Qblf 6. Sf5Qb7 = (B)iv) Or 2. ... Qg4| 3. Kf6 (3. Kh7?Qh5t 4. Sh6 Qxe5, or 3. Kh6? Qb44. Kg6 . 4. Sd6 Qh4t 5. Kg6 Qg4t,etc.) Qb4 (3. ... Kg8? 4. Sh6t) 4.Qg7 (4. Qe6?. Qb2t 5. Kg6 Qg2t:B) Qb2t 5. Kg6 Qg2t 6. Kh6 (6.Kh7? Qe4 7. Kg6 Qe6f 8. Kg5 h2)Qd2t (Or 6. ... Qe2 7. Qd7t Qe8 -7. ... Kf7 8. Sd6t Ke6 9. Qe8t - 8.Qd6t Kg8 9. Qg3t Kf8 10. Qg7mate; not 6. ... Qe4? 7. Qg7t Ke88. Sd6t) 7. Kh7 Qg5 (7. ... Qe2 8.Qd8t, etc, or 7. ... Qb4 8. Kg6 Qg4f9. Kf6 wins) 8. Qg5f Kf7 9. Sh6tKf6 10. Qd6 mate.v) Not 3. Kh7? Qb7t (B), nor 3.Sd6? Qblt 4. Kh6 Qclf 5. Kh7Qblt 6. Sf5 (6. Kh8? Qg6 =) Qb7t.etc., nor finally 3. Kg5? Qb4.vi) 3. ... Qd8? 4. Qh8t, or 3. ...Qb(a)7? 4. Qh8t Kf7 5. Qg7t, or3. ... Qgl? 4. Qe7t Kg8 5. Qe8 mate,vii) Threatening 5. Qf6t Kg8 6.Qg6f, followed by mate.viii) 4. ... Qbl? 5. Kh6 mates, or 4.Kg8? 5. Qe8t Kg7 6. Qg6t-ix) After 5. Qf6t? Kg8, the squareg6 is under Bl's control.x) 6. ... Kf6? 7. Se8t Ke5 8. Qd6tKf5 (e4) 9. Qg6t, or 6. ... Kh8? 7.Sf7t Kg(h)7 8. Sg5t Kg8 9. Qf7fKh8 10. Qf8 mate or 6. ... Kh8?7. Sf7t Kg8 8. Sh6t Kh8 9. Qe8fKg7 10. Qf7t Kh8 11. Qg8 mate.

28

xi) Not 7. Qf7t? Kh8 8. Qf6f Kg89. Sf5 Qdlf 10. Kh6 Qd2f.xii) 7. ... Qb2(al) 8. Sh6f Kh8 9Qe8f Kg7 10. Qf7f Kh8 11. Qg8mate.xiii) 8. Sh6f? Kh8 9. Qe8| Kh7 10.Qf?t Qg7, or 10. Qe4f Kh8 = .xiv) Or 8. ... Kf(g)7 9. Sg6| Kg810. Qe8f Kg7 11. Qf8f Kh7 12. Qh8mate.xv) 2. Kg6? Qg6f 3. Kh7 (3. Kh5Qf3t 4. Kh6 Qg6f 5. Kg5 Qglf, etc.,or 5. Sd6 Qglf 6. Kh7 — 6. Kg6Qg2f 7. Sf5 Qg6f, etc. — Qblf 7.Sf5 ~ 7. Kh8 Qg6 — Qb7f, etc )Qb7f 4. Kh8 h2 5. Qf6f Qf7 (5. ...Ke8? 6. Sd6t Kd7 7. Qf7f and 3.Qxb7) 6. Qd6f (Cr 6. Qd8f Qe8 7.Qd6f Kf7f) Ke8 7. Qb8| Kd7 8.Qb7| Kd8 9. Qxf7 hlQf = . If 2. ...Qg4f (A), then 3. Kf6 Qb4 4. Qe6?!(A 'study within a study') Qb2f5. Kg6 Qg2f 6. Kh7 Qb7f 7. Kh8Qb2f 8. Kh7 Qb7f 9. Kg6 (Or 9.Kh6 h2 10 Qf6t Kg8 11. Se7f Qxe712. Qxe7 hlQt) Qg2f 10. Kh5 Qb7!(But not 10. ... Qf3f? 11. Kh6 Qf4f12. Kg6 Qg7 — 12. ... Qg4f 13. Kf6etc. — 13. Qf6f Ke8 14. Se7f Kd715. Qe6f Kd8 16. Qe8 mate) draws11. Qf6f Qf7f, or 11. Sd6 Qh7f 12.Kg- Qg8t, or still 11. Kg2 Qg2|, orfinally 11. Kh6 h2. Some refuta-tion!xvi) Or 2. ... Qdlf 3. Kg6 Qg4fKf6., etc. (A). Not 2. ... Qgl? 3.Qf6f Kg8 4. Se7t Kh7 5. Qh6 mate.And if 2. ... Qdlf, then 3. Kg6 Qglf4. Kh6 Qglf 5. Kh7.xvii) But not 3. Sd6? Qd3! 4. Kh6(4. Qe8f Kg7 5. Qd7f Kf6 6. Se8tKe5 7. Qd6f Ke4 =) Qd2f 5. Kh7(5. Kg6? Qg2f 6. Sf5 Qg6f, etc.)Qd3f 6. Sf5 (6. Kh8 Qg6 =) Qd7f7. Kh8 (7 Kg6? or 7. Kh6? Qg6f,etc.) h2.xviii) 4. ... Ke7 5. Qe8f Kf6 6. Qf7fKe5 7. Sg4f, or 4. ... Kf6 5. Qf7fKe6 6. Qf7t, or still 4. ... Kg7 5.Qg7f Kh8 6. Qd8f Kh7 7. Qe7f Kg88. Qg5f Kf(h)8 9. Qf(h)6f Kg8 10.Qg6f mates.xix) Or 5. ... Kf6 6. Qf7f Ke5 7.Sg4f.There are quite a lot of quiet mo-ves.

No. 3288 J. VandiestOriginal

Win 3+2

No. 3288: J. Vandiest.I. Bg4/i d3 2. Kd6 d2/ii 3. Ke7 dlQ4. f8Qt Kg6/iii 5. Qf6f Kh5/iv 6.Qf5f Kh6/v 7. Qe6t/vi Kg5/vii 8.Qe3t Kh4 9. Qf2f Kg5 10. Be2 Qal/viii 11. Qg3f mates in 5/ix.i) 1. Bg6? d3 2 Kd6 d2 = .ii) 2. ... Kf8? 3. Ke6 d2 4. Bb3.iii) Or directly 4. ... Kh7 5. Qf5f.iv) 5. ... Kh7? 6. Kf8 Qg4 7. Bd3t,or 6. ... Qd7 7. Bg8 mate,v) 6. ... Kh4 7. Qf2f.vi) The trap being 7. Bd3, whichseems unanswerable (7. ... Qelt8. Kf7, or 7. ... Qh5 8. Qf6f, or still7. ... Qgl 8. Qh7f Kg5 9. Qg6f), butafter 7. ... Qg4! the win is gone (8.Qxg4? stalemate, or 8. Qh7f Kg5= ); nor does 7. Qf4f? do the jobbecause of 7. ... Kh7 8. Be6 Qe2!9. Qf5| Kh6 = .vii) 7. ... Kh5? 8. Be2t, or 7. ...Kg7? 8. Qf6f Kh7 9. Kf8, or still7. ... Kh7? 8. Bd5 Qfl (8. ... Qh59. Be4f Kg7 10. Qf6f Kg8 11. Qf8mate, or 8. ... Qd4 9. Be4f Kg7 10Qg4f Kh8 11. Qg8t Kg7 12. Qf8mate) 9. Be4f Kg7 10. Qg4f Kh8II. Qh5f Kg- 12. Qh7 mate,viii) Must prevent 11. Qf6 mate,ix) 11. ... Kh6 12. Qh4f Kg7 13.Qg5f Kh7 14. Bd3f Kh8 15. Qh6fKg8 16. Qh7.

29

No. 3289 J. VandiestOriginal

'The Discovered Checks'

Win 3+3

No. 3289: J. Vandiest.1. d7 hlQ/i 2. d8Qf!/ii Kg3f/iii 3.Bxhl alQ 4. Qg5f Kf2/iv 5. Qd2fKg3/v 6. Qg2f Kh4/vi 7. Qf2f Kg4/vii 8. Bf3f Kf5/viii 9. Bb7f/ixKe6/x 10. Qb6f Kd7/xi 11. Qg6f/xii Ke7/xiii 12. Qg5f Kd7/xiv 13.Bg6f Kg7 (g8)/xv 14. Bb5f/xviKb7 15. Qg6f Kb8 16. Qd6f Kb717. Bg6f wins (17. ... Kb6 18. Bd5fKa5 19. Qg7f Kb4 20. Qb6f).i) 1. ... alQ? 2. d8Qf Kh3 (2. ...Kg4? 3. Qg5f Kh3 4. Bg2 mate, or2. ... Kg3 3. Qg5f Kf2 4. Qg2f, etc.)3. Qd7f! Kg3 (3. ... Kh4 4. Qe7tKh3 5. Bf5f, etc.) 4. Qd6f Kh3 (4.... Kg4 5. Qg6f, or 4. ... Kh4? 5-Qf4f Kh3 6. Qf3f Kh4 7. Qf2f K-8. Bf5 mate, or still 4. ... Kf2? 5.Qd2f! Kg3 6. Qe3f, etc.) 5 Qe6t!Kg3 (5. ... Kh4 6. Qe7f Kh3 7. Bf5tKg2 8. Qe2f Kg3 9. Qe3f Kg2 10.Bh3f Khl 11. Qf3f Kgl 12. Qg2mate) 6. Qg6f Kf4 (6. ... Kh3? ?.Bf5f Kh4 8. Qg5 mate, o r 6. . .Kh4? 7. Qg5f Kh3 8. Bf5 mate, or6. ... Kf2 7 Qg2f, etc.) 7. Qf5f Ke3(7. ... Kg3 8. Qf3f Kh4 9. Qi4f,etc.) 8. Qf3f Kd2 9. Qf2f Kcl (Kc310. Qf6f, or 9. ... Kdl 10. Qflf) 10.Qg2 mate.ii)Not immediately 2. Bxhl? alQ3. d8Qt Kh3 4. Qd3 Kh2 = .iii) 2. ... Kg4f 3. Bxhl alQ 4. Qg5tKh3 5. Qg2| Kh4 6. Qf2f, etc., or2. ... Kh3 3. Qd3f Kh2 (3. ... Kh44. Bxhl alQ 5. Qe4f K-3 6. Qf3f.etc. or 3. ... Kg4f 4. Bxhl alQ 5.Qf3f Kh4 6. Qf2f) 4. Qe2f Kg3f (1... Kh3? 5. Qh5f and 6. Qxhl) 5.Bxhl alQ 6 Qf3f.

iv) Or 4. ... Kh3 5. Qg2f Kh4 6Q£2f.v) 5. ... Kgl? 6. Qg2 mate, or 5. ...Kfl? 6. Qg2f Kel 7. Qglf.vi) 6. ... Kf4? 7. Qg5 mate.vii) Not 7. ... Kh3? 8. Bg2| Kg4 9.Qf3f Kh4 10. Qf4 mate, or 8 . .Kh2 9. BfIf Khl 10. Qg2 mate.'viii) Offering more possibilitiesthan 8. ... Kf4 9. Bb7t.ix) The only move, as it will turnout.x) Cr 9. ... Ke5 10. Qg5t- Not 9. ...Kg4? 10. Bg8 mate.xi) Or directly 10. ... Ke7 11. Qg5f,etc. Not 10. ... Kf5? 11. Qg6t Kf412. Qg5 mate, or 10 ... Ke5? 11.Qg5t Kf6 (11. ... Ke6 12. Bg8t Kf713. Qg7t Kf8 14. Qg6t, etc.) 12.Qd6t Kf7 (12. ... Kf5? 13. Qg6t)13 Bd5f Ke8 14. Bg6t Kf 7 15. Qd7fKf8 (Or 15. ... Kf6 16. Qg7t) ±6.Qe8 mate.xii) There is nothing in 11. Bg6f?Kd6 12. Bg2t Ke7 13. Qg5t Kd8 14.Qd6t Kg8 15. Qg6t Kd8 16 QbofKe7.xiii) 11. ... Kd8? 12. Qd6t Ke8 13.Bg6f Kf7 14. Qd7t-xiv) 12. ... Ke6? 13. Bg8t Kf7 14.Qd5f Kf8 (14. ... Kf6? 15. Qe6 ma.te) 15. Qd6f Kf7 16. Be6t Kf6 17.Bg4t Kf7 18. Bh5t Kg8 19. Qd8matexv) 13. ... Ke6? 14. Qd5t Kf6 15.Qd6t Kf5 (15. ... Kf7 16. Qd7t, etc.)16. Qg6t Kf4 17. Qg5 mate.xvi) But not 14. Bd5t? Kd7 15.Qg6t Kd8 16. Qb6f (16. Qd6t Kg817. Be6f Kb7 = ) Kd7 17. Bg6t Kd618. Bb7t Kd7!, and not an inch ofprogress has been made.

No. 3290 J. VandiestOriginal

Win 4+4

30

No. 3290: J. Vandiest.1. Bd3f/i Kd7/ii 2. Qa7f Kg6 3.Qa6f Kd7/iii 4. Qb7f Kd6/iv 5.Qb6f Kd7/v 6. Bf5f Ke7 7. Qe6tKf8 8. Bg6.A) 8. ... Kg7 9. Qe5f Kg8 10. Qd5fKg7 11 Qd4f Kg8 12. Qxg4f Kg713. Qd4| Kg8 14. Bf7f Kh7 15.Qxh4f Kg7 16. Qd4f Kh7 17. Bg6tKg8 18. Qd5f Kg7 19. Qf7f Kh6 20.Bd3 Qg7/vi 21. Qf5 Qb7f/vii 22.Kg3 Qb8t/viii 23. Kh3 Kg7/ix 24.Qg6f Kf8 25. Qf6t Kg8 26. Bg4fKh7 27. Qe7f Kh6/x 28. Kg4 Qbl/xi 29. Qf8f Kh7 30. Bg8f Kg6/xii31. Bf7f Kh7/xiii 32. Qg8f Kh6 33.Qh8f Qh7 34. Qf6f mates.B) 8. ... Qc3t/xiv 9. Kg4 Qd4f/xv10. Kh5 Qf2/xvi 11. Qe8f Kg7 12.Qe7f Kg8 13. Bh7f Kh8 14. Be4Qe2f/xvii 15 Kg6/xviii Qg4f 16.Kh6 Qf4f 17. Kh5 Kg8 18. Bd5fKh8 19. Qe8f Kg7 20. Qg8f Kf6 21Qf7| Ke5 22. Qg7f Kf5 23. Be6fKe4 24. Qxg4f K- 25. Qxf4f Kxf426. Kxh4 Ke5 27. Kg5 Kxe6 28.Kg6 wins.i) A 'problematic' move.ii) 1. ... Kf7 2. Bxg4f, or 1. ... Kf82. Qg5f, or 1. ... Kd8 2. Qb6f, shor-ter.iii) 3. ... Kg5, 3. ... Kg7 or 3. ..Kd5, in each case followed by 4.Qxg4f, is longer, but allows for afew minor duals.iv) 4. ... Ke6? 5. Bxg4f Kd6 6. QbofKd7 7. Bb5f Ke7 8. Qg7f Kf8 9.Qb8f Kg7 10. Qe5f Kg8 11 Bg4fKh7 12. Qe4f Kg7 13. Qd4f Kh7 14.Qxh4f, suppresses, for Bl, varia-tion B.v) 5. ... Kd5? 6. Be4f Ke5 7. Qb2f,or 5. ... Ke7? 6. Qg7f Ke6 (6. ... Kf87. Qd8f Kg7 8. Qd4f, etc.) 7. Bxg4fKf5 8. Qf4f Kg6 9. Qg4f Kh6 10.Qxh4f, and off goes variation Bagain.vi) 20. ... Qa8f? 21. Be4 Qa3f (21.... Qa6 22. Qh7f Kg5 23. h4f Kf624. Qg6f) 21. Kg4 mates,vii) 21. ... Qg5? 22. Qh7 mate, or21. ... Qgl? 22. Qh7t Kg5 23. Qg6f,or 21. ... Qg8? 22. Qf6f Kh5 23. Kf2Qg5 24. Be2f Kh4 25. Qh8f.viii) 22. ... Qg7f? 23 Kh3 Qg7 (23.... Kg7? 24. Qh7t, or 23. ... Q-6?24. Qh7t Kg5 25. Qh4 mate) 24.

Qf4f Qg5 25. Qf8| Qg7 (25. ... Kh5?26. Qf7f Kh6 27. Qh7 mate) 26. Qf5Qg8 (26. ... Qg5 27. Qh7 mate, or26. ... Qgl 27. Qh7f Kg5 28. Qh4mate) 26. Qf6f Kh5 27. Be2f ma-tes, or 22. ... Qg7f? 23. Kh3, etc.ix) 23. ... Qg8? 24. Qf6f Kh5 25.Be2f, or 23. ... Q-6? 24. Qh7f Kg525. Qh4 mate.x) 27. ... Kg6? 28 Bd3t Kh- 29.Qh7f Kg5 30. Qh4 mate, or 27. ...Kh8? 28. Qh4f Kg7 29. Qg5f Kh730. Bd3f Kh8 31. Qh6f Kg8 32. Bc4mate.xi) 28 ... Qg8f? 29. Be6 Qg6 (29... Qh8 30. Qg5f Kh7 31. Bf5 mate)30. Qf8f Kh7 31. Bf5f.xii) 30. ... Kh8? 31. Ba2f.xiii) 30. ... Kf6? 31 Ba2f.xiv) 8. ... Qg7? 9. Qe8 mate, or 8.... Qg8? 9. Qf6f.xv) 9. ... Kg7? 10. Qf7f and 11.Qh7 mate.xvi) 10. ... Qg5f? 11. Kh6 Qe7 12.Qg8f, or 10. ... Qa7? 11. Qe8f Kg712. Qe5t Kg8 (12. ... Kf8? 13. Qh8tKe7 14. Qg7f) 13. Kh6 Qd7 14.Qb8f, or 10. ... Qf4? 11. Qe8f Kg712. Qe7| Kg8 13. Qh7f Kf8 14. Qh8tKe7 15. Qe8f Kf6 16. Qf7f Ke5 17.QQgt.xvii) 14. ... Kg8? 15. Bd5f Kh8 16.Qe8f Kg7 17. Qg8f Kf6 18. Qg5mate.xviii) But not 15. Kg5? Qe3f 16.Kh5 Qe2f."The idea of variation A won afirst prize in Ceskoslovensky Sach(1960) and, later on, in an impro-ved setting, again a first prize inSchakend Nederland (1961).In both versions, however, wPh2remained a mere dud, its mainfunction being to prevent a stale-mate. I had to set up this thirdversion to feel finally 'satisfied"about its presence on the board:in variation A it is now indispens-able after 20. ... Qa8f 21. Be4 Qa622. Qh7f Kg5 23. h4f (no winwithout this possibility!), whereas,in variation B, it even decides thegame after the queens get off theboard. So perhaps these two firstprizes were not entirely justified"

(JV)

31

No. 3291 L. Mitrofanov andV. Razumenko

1st Prize.IX All-Russian Tourney. 1976

Draw 4+4

No. 3291: L. Mitrofanov and V. Ra-zumenko. 1. Sd5 a2 2. a8Q/i Sxa83. e7 Sc7 4 Sxc7 alQ 5. e8Q Qd4f6. Kel Qgl 7. Kd2 Qf2f 8. KdlQd4| 9. Kel Qgl 10. Kd2.i) A 'thematic try' is 2. Sxc7? alQ3. a8Q Qd4f 4. Kel Qgl 5 Qa3Ba6t 6. Kd2 Qh2f 7. Kc3 Qxc7f 8.Kd4 Qf4f 9. Kd5 Bb7f 10. Kc5 Qf8f.Judge: V. A. Bron.

No. 3292 T. Dorogov andD. PIkhurov

2nd Prize,IX All-Russian Tourney, 1976

Win 6+5

No 3292: Y. Dorogov and D. Pik-hurov. 1. Rb3f Ka4 2. Sxc8 Bc6f 3.Kb8 h2 4. Sb6f Kb5 5. a4f Kxb6 6.Rxc3 hlQ 7. Rxc6f Qxc6 8. a8SfKa6 9. Sc7f Kb6 10. a5 mate.

No. 3293 V. Kozyrev3rd Prize,

IX All-Russian Tourney, 1976

Draw 4+5

No. 3293: V Kozyrev. 1. d8Q Ba3f2. Kc6 Sb4f 3. Kc7 Sa6f 4. Kc6Sb8f 5. Kc7 Bd6f 6. Qxd6 Sa6f 7.Kc6 ed 8. e7 flB/i 9. e8S draw,i) 8. ... flQ 9. e8Q Qb5f 10. Kxd6Qxe8 stalemate.

No. 3294 F. AitovSpecial Prize,

IX All-Russian Tourney, 1976

Win 3+2

No. 3294: F. Aitov. 1. Sc3 Kxc3 2.h7 12 3. h8Qf Kd3/i 4. Qb2 flQ 5.Qb5.i) 3. ... Kd2 4. Qh2 Kel 5 Kd4 flQ6. Ke3.JRH: Nearest seems Rinck (1932)No. 987 in '1414'. H. M. (1,2,3,4):A. Sadykov; E. Pogosjants; B.Clympiev; E. Asaba. Comm: (1,2,3,4): V. Kondratyev; P. Gaidukov;E. Asaba; V. Kondratyev. But nopositions were printed in '64'.

32

No. 3295 E. Dobrescu (xi.76)1st Prize,

Magyar Sakkelet, 1976Award: vii.77

Win 5+4No 3295: E, Dobrescu. Judge wasArpad Foldeak. 1 Sg2 Rc4f 2. Kh5Rc5f 3. Kh6 Rc6f 4. Se6 Kxg2/i 5.g8Q| Kh2/ii 6. Qb8 elQ/iii 7. c8QtKh3 (else Qg8|) 8. Qh8 Rxe6f 9.Kg5f Kg2 10. hQh2t Kfl 11. bQf4fmates.i) 4. ... Rxe6f 5. Kh7 Re8 6. Sel.ii) 5. ... Khl 6 Qg3, or 5. ... Kf26. Qf7t.iii) 6. ... Kgl 7. c8Q Rxc8 8. Qg3fKfl 9. Qf3f Kel 10. Sd4. Or 6 ...Kh3 7. c8Q Rxc8 8. Qe5 Rc2 9. Sd4.

No. 3296 B. Perenyi (v.76)2nd Prize,

Magyar Sakkelet, 1976

Win 4+4

No. 3296: B. Perenyi. A new namein composition. 1. Bg2/i g5/ii 2.Bh3f/iii 2. ... g4 3. Bfl Ke4 4. Bg2fwins.i)l. Bxb7? h4 2. Ec8f Ke4 3. f5 hg4. fg g2 5. Bb7f Kf5.1. Pe2? h4 2. Bd3f Kg4 3 gh Kxf4.1. Kd5? h4 2. Kd4 hg.ii) 1. ... h4 2. Bh3f Ke4 3. f5 gf 4.gh wins.

1. ... b5 2 Kd5 Kg4 3. Ke5 Kxg3 4.Be4 h4 5. Bxg6 h3 6 Be4 h2 7. f5b4 8. f6 b3 9. f7 b2 10. f8Q hlQ 11.Qf4f Kh3 12. Qh6f wins,iii) 2. fg? Kxg5 3. Bh3 Kf6.

No. 3297 K. Honfi (x.76)3rd Prize,

Magyar Sakkelet, 1976

Win 4+5No. 3297: K. Honfi. Another newname! 1. Sd2 b2/i 2. Bc5 g2 3. Bd4/ii glQ 4. Bxgl blQ/iii 5. Bd4f Qb26. Bg7 Qxg7 7. hg wins, for instance7. ... Kb2 8. Sb3 Kxb3 9. g8Qt, or8. g8Q alQ 9. Qg7, 10. Qa7f, 11.Qd4f, 12. Qa4f and 12. ... Kb2 13.Sc4f wins.i) 1. ... g2 2. Sxb3f Kbl 3. Kxg2alQ 4. Sxal Kxal 5. Kg3.ii) 3. Kxg2? blR 4. Bd4f Rb2 draw.iii) 4. ... blR 5. Bd4f Rb2 6. Sc4wins.JRH: A similar idea is in Lilja(1948), No. 10 in '123a'.

No. 3298 E. Pogosjants (v.76)4th Prize

M?

Sxb4 7. Kxb4 Kd5 8. Kc3 e3 9. Kd3e2 10. c4f wins.i) 1. Qb2? Sb6f 2. Kb5 Sd7f 3. Ka5Ra7f 4c Kb5 Rb7f 5. Kc4 Sb6fdraws, though not 6 Kxc5? Sa4f.ii) 5. c3? Se3f.5. Qel? Rb4f 6. Qxb4 Se3f 7. Kc3Sd5|.

No. 3299 Cs. Meleghegyi(iv.76)

1 H.M.,Magyar Sakkelet, 1976

No. 3300 G. A. Umnov Cxi.76)2 H.M.,

Magyar Sakkelet, 1976

Win 3+3

No. 3300: G. A. Umnov 1. b7 Sd3f/i2. Kc2/ii Sb4f 3. Kc3 Rbl 4. Rb5Sd5f 5. Kc4 Sb6f 6. Kd3 Rxb5 7.b8Q wins.i) 1 ... Rh2f 2. Kc3 Rh3| 3. Kc4Rh4f 4. Kb5 Sc2 5. Kb6 wins.

Win 44-4

No. 3299: Cs. Meleghegyi. 1. Rf7(a5? Ra3;) 1. ... f3/i 2 a5 Rg6f/ii3. Ke7 Rg7/iii 4. e6 12 5. Ke8 Rg66. e7 Ra6 7. Rxf2 Ra8f 8. Kd7 Ra7f9. Kd6 Ra6f 10. Kc5 Rxa5f 11. Kc6Pa8 12. Ra2 winsi) 1. ... Rg6f 2. Rf6 Rxf6t 3. ef Kf84. a5 wins.ii) 2. ... f2 3. Rxf2 Ra3 4. Kf6 Rxa55. e6 wins.iii) 3 ... Rg5 4. e6 Rxa5 5. Rxf3Ra7f 6. Kf6.3. ... R.a6 4. Rxf3.JRH: The final phase was shownby Grigoriev (1937), No. 107/8 onp. 263 of Awerbach Lehrbuch derEndspiele, III.

No. 3301 V. A. Bron (vi.76)3 H.M.,

Magyar Sakkelet, 1976

Win 3+9

No. 3301: V. A. Bron. 1. Sc6 (Re8?Sd6;) 1. ... d2 (else 2. Rc7) 2 Re8fSd8 3. Rxd8f Kb7 4. Sa5f Kb6 5.Rxd5 Sc2 (Kxa5; Kxb2) 6. Rxd2Sb4t/i 7. Kbl Kxa5 8. Rd6 Ka4 9.Kxb2 a5 (Ka5; Kb3) 10. Rd4 a6 11.Rd6 wins.i) 6. ... Sa3 7. Kxb2 b4 8. Rd5.JRH: This way of confining bS wasshown by Kasparyan (1946), No.1937 in Cheron III.

34

No. 3302 E. Janosi (iv.76)4 H.M.

Magyar Sakkelet, 1976

Draw 5+5

No. 3302: E. Janosi 1. a7/i Be6f 2.Ke8/ii Bd7f (Rh6; b6) 3. Ke7 Ra64. ba Ec6 5. Kd6 Ba8 6. Kd7/iii Kb47. Kc8 Kc5 8. Kc7 Bc6 9. Kb8 Kb610. a8Q Bxa8 11 Kxa8 draw,i) 1. Kc7? d4 2. e4 Bg6 3. e5 Rf7f4. Kc8 d3 wins.ii) 2. Kc7? Rf7t 3. Kb6 Rf8 4. Kb7Kc5 5. a8Q Rxa8 6 Kxa8 Kb6.iii) 6. Kc7?Kc5 7. Kc8 Kc6 8, Kb8Kb6 9. Kxa8 Kc7 10. e4 d4 wins.

No. 3303 Z. Fekete (x.76)5 H.M.,

Magyar Sakkelet, 1976

Win 6-|-6

No. 3303: Z. Fekete. Yet anothernew name 1. d4 Bxd4/i 2. Bxd4d6 3. Bc5/ii dc/iii 4. Kc3 Kf7/iv 5.Kxc4 Kg6 6. a5 ba 7. Kxc5 Kg5/v8. Kd6 Kf5 9. a4 wins.i) 1. ... Bd6 2. edf Kxd6 3 Ka3Kd.5 4. Kb4.ii) 3. Bxb6? de 4. a5 Kd7 5. a6 Kc86. Ea7 e4 draw.

iii) 3. ... be 4 a5 Kd7 5. a6 Kc7 6.ed.iv) 4. ... Kd7 5. Kxc4 Kc6 6. a3.v) 7. ... Kf5 8. Kd6 a4 9. a3.JRH: There is one prior studyshowing wB pinning bP and si-multaneously offering to that P:Genttner (1935), No. 177 in '1357'.

No. 3304 J. Lamoss (x.76)6 H.M.,

Magyar Sakkelet, 1976

Win 4+8

No. 3304: J. Lamoss. 1. Bf3 g4f 2.Kxg4 (Bxg4f? Kc6) 2. ... e4 3. Bxe4f5t 4. Kxf5 Bd5 5. Bxd5 e6f 6.Bxe6f Kd6 7. Bd5/i ab 8. a7 wins,i) 7. b7? Kc7 8. Bd5 Kb8 draw.JRH: The last phase is known, egKorn (1957), No. 85 in 'AmericanChess Art'.

No. 3305 C. M. Bent (xii.76)Commended,

Magyar Sakkelet, 1976

Draw 5+5

No. 3305: C. M. Bent. 1. Bh4f g52. Bxg5f Sxg5 3. Sg8f Kg7 4. Kxd6Sxh7/i 5. Se6f Kxg8 6. Ke7 draw.i) 4. ... Kxh7 5. Sf6f Kg7 6. Ke7.JRH: Cf, Pogosjants (1966), No.1956 in EG 34.

35

No. 3306 J. Koppelomaki(xi.76)

Commended,Magyar Sakkelet, 1976

Win 4+9

No. 3306: J. Koppelomaki. 1. Ra6f/i Kb4 2. Scl h2/ii 3. Kd2 c3f 4.Kd3 c4f 5. Kd4 c5f 6. Ke3 c2 7. Kd2c3f 8. Kd3 c4f 9. Kd4 c5f 10. Ke3and 11. a3 mate.i) 1. Sxc5f? Kb4 2. Rxc6 h2.ii) 2. ... Kc3 3. Se2f Kb2 4. Rxc6.

No. 3308 J. Lazar (viii.76)Commended,

Magyar Sakkelet, 1976

Draw 4+2

No. 3308: J. Lazar. 1. f7f Kf8 2.Bf6 Qf2/i 3. Bd8 Qg3 4. Bf6 Qf2 5.Ed8 Kg7 6. Bf6f Qxf6 7. f8Qf andeither 7. ... Kxf8 8. Sh7|, or 7. ...Qxf8 8. Se6f.i) 2. ... Qc6f and 3. ... Qxf6 met by4. Sh7f.JRH: Cf. Belokon (1972), No. 2226in EG 38; Zababurin (1973), No.2275 in EG 39; van den Ende ('65),No. 84 in EG 3.

No. 3307 V. S. Kovalenko(iv.76)

Commended,Magyar Sakkelet, 1976

Win 3+3

No. 3307: V. S. Kovalenko. 1. Bd4(Bd8? Bc7;) 1. ... Ba7 2. Bb6 Bb83. Ka5/i Kb7 4. Kb5 Kc8 (Ka8;Kc6) 5. Ka6 wins, but not 5. Kc6?Fc7.i) 3. Kb5? Kb7 4. Ka5 Ba7 draw.

No. 3309 L. Lindner (xii.76)Commended,

Magyar Sakkelet, 1976

Draw 8+8

No. 3309: L. Lindner. 1. Ra8 blQ/i2. h8Q Rb5f/ii 3. Ka6 Rb6f 4. Ka5Rb5f 5. Ka6.i) 1. ... blS 2. h8Sf Ke7 3. Sg6fKd7 4. Se5f wins, but not 2. h8Q?Exc3f wins.ii) 2. ... Bxc3f 3. Qxc3 e5 4. Qc4fKe7 5. Ra6.

36

No. 3310 D. Gurgenidze andV. Neidze (vi.76)

1st Prize, Szachy, 1976Award: ix.77

No. 3312 E. Dobrescu (x 76)3rd Prize, Szachy, 1976

Draw 5+7

No. 3310: D. Gurgenidze and V.Neidze. Jan Rusinek judged thisinformal tourney that also celebra-ted the 50th anniversary of thePolish Chess Federation. No. ofentries: 36. Mr Harman was con-sulted for anticipations.1. b4f Ka6 2. Be2f b5 3. h7 Rh3 4.Bg4 Rxh7 5. Bc8f Bb7 6. Bd7 andnow either 6. ... Rxd7 with W beingstalemated, or 6. ... Ba8 7. Bc8fRb7 8. Kc6 and' Bl being stale-mated!

Draw 4+3

No. 3312: E Dobrescu. 1. Re8f Se72. Bg4|/i Kf7 3. Bh5f Kf6 4. Rf8tKe6 5. Bg4f Ke5 6. Re8/ii Kd6 7.Ed8t Kc5 8. Re8/iii Kd6 9. Rd8fKe5 10. Re8 Kf6 11 Rf8f Kg5 12.Re8 Kf6 13. Rf8f Kg7 14. Re8 Kf715. Bh5f, positional draw.i) 2. Bb3f? Kd6 3. Rd8f Kc5 4. Rd7glQ 5. Rxe7 Qg5f.ii) 6. Rf7? Sg6 7. Rf5f Kd4 8. Rg5glQ 9. Rxg6 Qe3f.iii) 8. Rd7? Sc6 9. Rd5f Kb6.

No. 3311 D. Makhatadze (ii.76)2nd Prize, Szachy, 1976

Win 5+4

No. 3311: D. Makhatadze 1. Kfl Bh22. Bb5/i d6 3. Bc4 f6 4. Bd5 Be5 5.f4 Bxf4 6. e5f Kh2 7. e6 winsi) 2. Bc4? f6 3. Bb5 d6 4. Bc6 Be55. f4 Bxf4 6. e5| d5 7. Bxd5 Kh2.

J. Fritz (v.76)Szachv, 1976

Draw 4+5

No. 3313: J. Fritz. 1. e7 Kf7 2. Sb3Rbl 3 e8Qt Kxe8 4. Re5f Kf7 5.Sxd2 Rdl 6. Re2 Sf3 7. Rg2 Sxd28. Ke2 Rbl 9. Rgl Bh4 10. Rg4 Bel11. Rgl, positional draw.

37

No. 3314 E. Janosi (xii.76)2 H.M., Szachy, 1976

No. 3316 H. Aloni (iii.76)Commended, Szachy, 1976

Win 4+3 Draw 3+4

No. 3314: E. Janosi. 1 Sc6f Kc7 2.Se5 Be3 3. Sd3 Kd6 4. Kc4 Ke7 5.Be4/i Kf6 6. Bg2 Kf5 7. Bh3f Ke48. f5 ef 9. Pg2 matei) 5. Bh7? Kf6 6. Be4 Bxf4.JRH: The same mate concludesKasparyan (1933), No. 725 in'2500'.

No. 3316: H. Aloni. 1. Rb3 Sf5/i 2.e6 e2 3. e7 elQ 4. e8Q Qxe8 (Qh4f;Kg6) 5. Rblf Ka2 6. Rb2f Ka3 7.Rb3| Ka4 8. Rb4f.i) 1. ... Sfl 2. Ra3f Kb2 3. Rxa5 e24. Rb5f Kc2 5. Rc5f Kd2 6. Rd5fKe3 7 e6 Kf4 8. Re5 wins.

No. 3315 V. Nestorescu (x.76)3 H.M., Szachy, 1976

Draw 5+6

No. 3315: V. Nestorescu. 1. Rb3fKal/i 2. c8Q Bxc8 3. Kxd3 and twomain lines: 3. ... Bf5f 4. Kd4 Be65. Rb7 Bc8 6. Rb3 Be6 7. Rb7, and3 ... Be6 4. Rb6 Bf5f 5. Ke2 Bd76. Bb2f Kbl 7. Be5f.i) 1. ... Sb2 2. Rxb2f Kcl 3. Rxa2fKdl 4. Ralf Ke2 5. Bel Bb7f 6.Kd4 Rg7 7. d3 Rxe7 8 Bf4.

No. 3317 V. Kalandadze,V. Korolkov and

A. Maksimovskikh (v.76)Commended, Szachy, 1976

Draw 5+5

No. 3317: V. Kalandadze. V. Korol-kov and A. Maksimovskikh. 1. Bf4clQ 2. Bxcl Rg2f 3. Kh6 b2 4. Bxb2ab 5. Rb7 baR/i 6 Ra7 Rbl 7. Rb7Rcl 8. Rc7.i) 5. ... baQ 6. Rblf Qxbl stale-mate.

38

No. 3318 A. Lewandowski(i.76)

Commended, Szachy. 1976

No. 3319 Y. Dorogov (iii-iv.76)1st Prize,

Tidskrift for Schack, 1976Award: viii.77

Draw 5+4Draw 6+4

No. 3318: A. Lewandowski. 1. Sd5Sf3t 2. gf Rg7f 3 Rg6 Rxg6f 4.Khl E- 5. Sf4f Bxf4 stalemate.

No. 3319: Y. Dorogov. Judge wasAxel Ericsson, who celebrated his75th birthday on 9.viii.76. His stu-dies number about 50 dating from19531. g7 ed 2. g8Qf Bg5f 3. Qxe8 dc 4.Qe3t Bxe3 5. Rg7f Kh2 6. Rh7f Kg37. Rg7f Kh4 8. Rh7f Kg5 9. Rg7fKh6 10. Rh7t Kg5 11. Rg7f Kf6 12Rf7t Ke5 13. Rf5f Ke4 14. Bd3fKxd3 15. Rd5f Bd4 16. Rxd4f Kxd417. Kd2.JRH: For final phase see Sehwers(1922), p. 25 of Rueb (B) IV.

39

No. 3320 J. Koppelomaki(xii.76)

2nd Prize,Tidskrift for Schack, 1976

Win 12+4

No. 3320: J Koppelomaki. 1. Sc3Qxc3 2. e8B (e8Q? Qf3f) 2. ... Kxd83. f8B/i Kxe8 4. g8B/ii Kd7 5. Bd5Qxe5 6. Bf3 Kc7 7. Bc5 Qxc5 8. f7wins.i) 3. f8Q? Qc8f 4 Ka7 Qb7f.ii) 4. g8Q? Qc8f 5. Ka7 Qc7f 6.Kxa6 Qc6f 7. Kxa5 Qd5f.JRH: The study is not anticipated,but Lommer has 4 wB promotions(No. 1048 in '1357').

No. 3321 A. Maksimovskikh(viii.76)

3rd Prize,Tidskrift for Schack, 1976

Draw 2+5

No. 3321: A. P. Maksimovskikh. 1.Be6f Kc7 2. Bxf5 Sg3 3. Bh3 Sg44. Bg2 Se2f/i 5. Khl Sf2f 6. Kh2Bh5 7. Bf3 Sg4t/ii 8. Kh3 Sglf 9.Kh4, drawi) 4. ... Bdl 5. Bf3 Se2f 6. KflSh2| 7. Kel.

ii) 7. ... Bxf3 is stalemate, the sameone, turned through 90°, as after 5.... Bxf3 in (i).

No. 3322 V. Gerasimov (xii.76)4th Prize,

Tidskrift for Schack, 1976

Win 7+8

No. 3322: V. Gerasimov 1. f6 Rxe52. Rf7t Qxf7 3. Rd8f Kxd8 4. Sc6|Kd7 5. Sxe5f Kd8 6. Sxf7f Kd7 7.Se5f Kd8 8. f7 Ke7 9. feQf Kxe810. Sxf3."Draughts" theme, a la Kubbel.

No. 3323 V. Kozirev (viii.76)5th Prize,

Tidskrift for Schack, 1976

Draw 5-f5

No. 3323: V. Kozirev. 1. Sb4 dcS 2.Sxd3f Sxd3 3. f7 Se5 4. f8S Sxf3f5. Kh3 e5 6. Sd7 e4 7 Sf6 e3 8.Sd5 e2 9. Sf4 elS 10. Sd3f Sxd3stalemate.

No. 3324: J. Rusinek. 1. e7 Kd7 2.e6f Ke8 3. Bxh8 Sxe7f 4 Kg7 Sg65. Kg8 Be4 6. Se3 Se7f 7. Kg7 Sf5t8. Sxf5 g2 9. Kg8 glQ 10. Sg7f Kd811. e7| Kxe7 stalemate.

40

No. 3324 J. Rusinek(vi-viii.76)

1 H.M.,Tidskrift for Schack, 1976

Draw 5+5

No. 3325 F. S. Bondarenkoand Al. P. Kuznetsov (xii.76)

2 H.M.,

Win 7 + 5

No. 3325: F. S. Bondarenko andAl P. Kuznetsov.A Novotny exercise - see W's mo-ves 2 and 4. 1. b8Sf Ka5 2. d5 Rxd53. Cc6t Kb5 4. Se5 Rxe5 5. Sxd6tK- 6. Sf5 wins.

No. 3326 V. A. Bron (xii.76)3 H.M.

Tidskrift for Schack, 1976

No. 3326: V. A. Bron. 1. Rh2f Kgl2. hRe2 Khl 3. Rc2 Kgl 4. Kg7 a4/i5. Kg8 a3 6. Kg7 a2 7. Rxa2 Khl 8.Rf2 Qg2f 9. Kf8 wins.i) 4. ... Ca l | 5. Kf7 Qflf 6. Ke7Khl 7 Rf2.JRH: Dall Ava (I960), No. 1470 in'2545' and Kasparyan (1959), No.1468 in the same.

No. 3327 D. Gurgenidze andV. Neidze (xii.76)4 H.M.,

Tidskrift ior Schack, 1976

Black to Move, White Draws3+4

No. 3327: D. Gurgenidze and V.Neidze. 1. ... Rc5| 2. Kd4 Bf2f 3.Ke4 Ec2f 4. Kf3 Rf5f 5. Ke2 Kxc76. Rc4f Rc5 7. Rg4 Rf5 8. Rc4f Rc59. Rg4, positional draw.JRH: Nearest is Korolkov (1957),No. 182 in Kasparyan's 'PositionalDraw'.

No. 3328 D. Petrov andV. Tyupin (viii.76)

Commended,Tidskrift for Schack, 1976

Win 3+3 Win 6+4

41

No. 3328: D. Petrov and V. Tyupin.1. Bf4 Sxf4f 2 gSxf4 Bc4f 3. Ke7ed 4. Sg3| Kh2 5. Bxc4 dlQ 6. SflfKhl 7. Sc2 wins.

JRH: A similar manoeuvre isshown in Birnov (1939), No. 620in '2500', and Zakhodyakin (1931),No. 619 in the same.

No. 3329 Al. P. Kuznetsovand An. G. Kuznetsov

(vii.76)Commended,

Tidskrift for Schack, 1976

Win 4+5

No. 3329: Al. P. Kuznetsov and An.G. Kuznetsov. 1. Bg7 Bb5/i 2. Bc2fKa3 3. Bxf6 Sa4 4. Bxa4 and noweither 4. ... Kxa4 5. Sc5f Ka5 6.Bd8, or 4. ... Bxa4 5. Bb2j; Kb3 6.Sa5 mate.i) 1. ... Ka3 2. Bh6, explainingwhy 1. Be7? is wrong.

No. 3330 C. Jonsson (x.76)Commended,

Tidskrift for Schack, 1976

Win 5+5

No. 3330: C. Jonsson 1. Rc8f Bxc82. Ra3f Bb7 3. Bd4f Kb8 4. Be5fKc8 5. Rc3f Kd8 6. Bf6f Ke8 7.Re3f Se4 8. Bxe4 Rc7f 9. Ec6f Kf810. Re8 mate. The battery reversaltheme of the First WCCT.

No. 3331 E. Dobrescu (xii.76)Commended,

Tidskrift for Schack, 1976

Win 5-)-5

No. 3331: E Dobrescu. 1. Rd8 (Sfl?Rh6;) 1. ... Se3 2. Rgl Kf2 3. Rg6Rhlf 4. Ka2 Ralf 5. Kb3 Ke2 6.Rh6 Sg4 7. Re6f Se3 8. Sbl Rxbl9. Kxa3 and 10. Ka2."A complicated study with manyside-variations", but none are gi-ven in the source.

No. 3332 E. VladimirovOriginal

Win 3+2No 3332: E. Vladimirov. 1. Kc2Ka3/i,ii 2. Sc3 Sa2/iii 3. Sblf Ka44. Kb2 Sb4 5. Sc3 mate,i) 1. ... Sb3 2 Sc3f Kal 3. Se2Ka2 4. Bd6 Salt 5 Kc3 Sb3 6. Bb4Sal 7. Sd4 (position by Horwitz)Kbl 8. Ba3 Ka2 9. Bd6 Kbl 10. Sf3Sc2 11. Bf4 Sal 12 Sd2f Kcl 13.Sc4f Kbl 14. Sa3f Ka2 15 Bd6 Sb316. Sc4 Scl 17. Sd2 Se2f 18. Kd3

42

Sgl/iv 19. Bc5 Sh3 20. Be3 Kb2 21.Sf3 Kb3 22 Ke4 Kc4 23. Se5| Kc324. Kf3.ii) 1. ... Se2 2. Be5 Ka3 3. Sb2 Kb4/v 4. Kd2 Sgl 5. Ke3 Sh3 6. Bf6 Kb37. Sd3 Kc4 8 Bd8 Kc3 9. Se5 Kc210 Sg6 Kdl 11. Bh4 Kc2 12. Kf3Sglf 13. Kf2 Sh3f 14. Kg2.iii) 2. ... Kb4 3. Sdof Kc5 4.Sa2 5. Sd3f Kc4 6. Ba5 Kd4 7. Bd2Kc4 8. Sb2f Kd4 9. Kb3.iv) 18 ... Self 19. Kc2 Se2 20. Sb3.v) 3. ... Sgl 4. Bd6f Ka2 5. Sd3 Sf3/vi 6. Bc5 Kal 7. Sb4 Self 8 Kclvi) 5. ... Se2 6. Bc5 Kal 7. Bf2 Ka28. Kd2.

Sf4

No. 3333 V. KichiginOriginal

Draw 4+6

No. 3333: Viktor Kichigin. 1. Qa8fQg8f 2. Sf7f Kh7 3. Qhlf Kg6 4.Qh5f Kxf6 5. Qh4f Ke6/i 6. Qe7fKxe7 stalemate.i) 5. ... Kxf7 6. Qc4f Kg7(f8) 7.Qxg8f Kxg8 stalemate.JRH finds no anticipation.

No. 3334 V. A. BronOriginal

No. 3334: V. A. Bron. 1. Bbl Kb4|2 Ka2 Bxg7 (elQ;g8Q) 3. h8Q/iBxh8 4. Bxg5 elQ 5. Bd2f Qxd2stalemate.i) 3. Bxg5? elQ 4. h8Q Qe6 mate.JRH: no anticipation found.

No. 3335 T. Amiryan3rd Birnov Memorial Tourney

Win 4+4

No. 3335: T. Amiryan. This and thenext study were kindly sent to meas corrections 1. e4 h5 2. e5 h4 3.e6 h3 4. e7 h2 5. Rh6 Rxh6 6. e8QhlQ 7 Kxc7f Kxa7 8. Qa4f Ra6 9.Qd4f Ka8 10. Qd8f Ka7 11. Qb8mate.JRH: no anticipation found.

No. 3336 A. P. Maksimovskikhand V. P. Moiseev

3rd Birnov Memorial Tourney

Win 6+5

Draw 6+4

No. 3336: A. P. Maksimovskikhand V P Moiseev. 1. a7 h2 2. Rf2tKxf2 '3. Sg4f Kg3 4. Sxh2 Rxc4f5. Kd7/i Rc7f/ii 6. Kxc7 Sb5f 7.Kd7 Sxa7 8. h5i) 5. Kb7? Rb4| 6. Kc8 Sc4.ii) 5. ... Rxh4 6. Sflf Kf2 7 a8QKxfl 8. Qf3f K- 9. Qxa3.JRH: no anticipation found.

43

No. 3337 A. Lewandowski3 H.M..

Gazeta Cz-enstochowska. 1974

Draw 4+5

No. 3337: A. Lewandowski. 1. b7blQ 2. bcQ Qb4f 3. Kg8 Se7f 4.Kg7 Sxc8 5. Sf3f Kg4/i 6. Se5f Kg37. Rg6f Kh3 8. Rh6f Kg2 9. Rg6fKfl 10. Rf6f Ke2 11. Rf2f Ke3 12.Rf3f Kd2 (Ke4; Rf4f) 13. Rf2f Kc314. Rf3f Kc2 15 Rf2| Kbl (Kb3;Rb2f) 16. Rflf Scl 17 Rxclf Ka218. Rc2f Kbl 19. Rclf Ka2 20. Rc2fdraws/ii.i) 5. ... Kh5 6 Rh6f and 7. Rh4f.ii) 20. ... Ka3 21. Sc4f Ka4 22. Ra2fKb5 23. Rb2.

i) 1. a8Q? Sxa8 2. Bg2f Kxg4 3Bf3f Kg5 winsii) 1. ... Kh2 2. a8Q clQ 3. Qh8fKxg2 4. b5 draw.The Polish composer has migratedto West Germany and now spellshis name Ossadnik.

No. 3.739 N. Kralin1. H.M.,

Pa^eta Czenstochowska 1976

Win 4+6

No. 3339: N Kralin. 1. e8S/i Qxe8f2 Kxe8 Rxb3 3. g7 Rxa3 4. g8QRa8f 5. Kf7 Rf8f 6. Ke6 Rxg8 7.hgB Kg6 8. Bf7f wins,i) 1. e8Q? Qf3f. 1. h8Q? Qf3f.

No. 3338 H. Osadnik2nd Prize,

Award: 6.xii.77Gazeta Czenstochowska 1976

Draw 7+5

No. 3338: H. Osadnik. Judge: Sa-turnin Limbach, the columnist. 1stPrize: No. 3012 1. Bg2f/i Kh4/ii 2.a8Q Sxa8 3. b7 clQ 4. Bd8f Kxg45. Bf3f Kh3 6 Bg2f Kg4 7 Bf3fKf5 8. Be4f Ke6 9. Bd5f Kd7 10.Bc6f Ke6 11. Bd5f draw.

No. 3340 A. Zlatanow2. H.M.,

Czenstochowska 1976

Draw I: DiagramII: Reverse K's

9+11

No. 3340: A. Zlatanow (Bulgaria).I: 1. Ral R6xh7 2. Kbl Ra8 3. f8QRxf8 4. a8Q Rxa8 5. c8Q Rxc8 sta-lemateII: 1. Rhl R6xh7 2. Kgl Ra8 3. c8QRxc8 4. a8Q Rxa8 5. f8Q Rxf8 sta-lemate.

44

No. 3341 V. S. Kovalenko3. H.M.,

Gazeta Czenstochowska, 1976

No. 3343 A. Motor2 Comm.

Gazeta Czenstochowska 1976

Draw 4+2 Draw 5+4

No 3341: V. S. Kovalenko. 1. a5Kc5 2. Ka8 Qd5 3 Ka7 Kc6 4. a6Qd7 5. Ka8 Kxb6 6. b8Qt Kxa6 7.Qd6f Qxd6 stalemate.JRH: Cf. Kubbel (1922), No. 1584in Cheron III.

No 3343: A. Motor. 1. c8Qt Kxc82. e6 fef 3. Kxe6 Kd8 4. Kf7 Sc75. g6 Se8 6. Ke6 Sg7f draw.

No. 3342 N. Kralin1 Commend,

Gazeta Czenstochowska 1976

No. 3344 V. Kichigin3 Comm.,

Gazeta Czenstochowska. 1976

Win 3+4Win 7+7

No 3342: N. Kralin. 1. Sf7f Sxf72 Rg2t Bg7 3. Bxg7f Kg8 4. Bb2fKf8 5. c4 Se5 6. Rh2 d6 7. Kb7Sxc4 8. Bg7f Kxg7 9. Rxa2.

No. 3344: V. Kichigin 1 h8Q Re8f2. Qxe8 Sd6f 3. Kd8 Sxe8 4. h7 Sd65. Ke7 Sf5f 6. Kf7 wins.There were 4 more studies in theaward.

45

No. 3345 A. Lewandowski5 Comm.,

Gazeta Czenstochowska 1976

Draw 2+4

No. 3345: A. Lewandowski. 1. Rf8f/i Kh7 '2 Rb8 Be2f 3 ; Ka5 g2 4.Kbl Bfl -5; Rb4 glQ 6. Rh4f Kg67. Rg4f Qxg4 stalemate,i) 1. Re7? g2 2. Rel Be2f 3. Ka5Bfl 4 Re4 Be2 wins.JRH SNAPI's this with Yakimchik1974), 9th Comm. in Lokker Me-morial, which had wRf8 and bKh7,and the line 5. ... Bc4 6. Rbl Bfl7. Rb4 glQ 8. Rh4f and 9. Rg4fgiven. Also Bron (1927), No. 1823in Cheron III

No. 3346 Al. P. Kuznetsov1st Prize

III Solidarity Tourney,Yugoslavia, 1973-1976

Draw 5+6

No. 3346: Al. P. Kuznetsov. Judge:Dragutin Gaja, Belgrade. Therewere 62 studies from 40 composers.1. Rf7f Sd7/i 2. Rxf4 d2 3. Rc4f/iiKd8 4. Rd4 dlQ 5. Rxdl Sxdl 6.Bd4 Ke7 7. g7 Kf7 8. g3 Kg8 9. g4Kf7 10. g5 Kg8 11. g6.

i) 1. ... Bd7 2. Rxf6 d2/iii 3. Bxf2dlQ 4. Bb6f Kc8 5 Rf8f Be8 6.Rxe8f Kd7 7. Rd8f.ii) 3. Rd4? dlQ 4. Rxdl Sxdl 5.Bd4 Bb7 6. g7 Bd5.iii) 2 ... Be3f 3. Ka8 Bc6f 4. Rxc6fKxc6 5. g7.

No. 3347 V. Nestorescu2nd Prize,

III Solidarity Tourney1973-1976

Win 6+6

No. 3347: V. Nestorescu. 1. Bh3fKxhl (Kh2; Sf2) 2. Bg2f Kh2 3.Bb7 Qb8/i 4 Rg2f Khl 5 Bc6/iiQc8 6. Bd5 Qd8 7. Bf3 Qd3 8. Kg3h4f 9. Kg4 Qd4f 10. Kh3 (Kh5?Qb6) 10. ... Qe3 11. Rg3f.i) 3 ... Qa7 4. Rg2f Khl 5. Bc6Qc7 6. Ba8 Qb6 7 Kh3 Qa7 8. Ra2f.ii) 5. Bd5? Qe5 6. Ba8 Qe4f.The 3rd Prize (Bron Kgl/h6) fi-gured in Chervony Girnik 1975as pointed out by JRH.

No. 3348 S. A. da Silva1 H.M.,

III Solidarity Tourney1973-1976

Win 5+4

46

No 3348: S. A. da Silva. 1. Se3 g52. Bel g4 3. Sxg2 gf 4. Sf4 f2 5.Sh3f Kfl 6. Sc2 feQ 7. Se3 mate.JRH finds 1 similar mate, by Ka-landadze (on p.35 of his Georgiancollection).

No. 3349 E. L. Pogosjants2 H.M.,

III Solidarity Tourney,1973-1976

Win 7+5

No 3349: E. L. Pogosjants. 1. Sg5f/i Bxg5/ii 2. Scot Kf4 3. Se6t Kxg44. Sg7f Kh4/iii 5 g3 mate.i) 1. Kb3? Rblf 2. Ka2 Rb2f 3. KalRxf2 drawii) 1. ... Kf4 2. Sh3f Kxg4 3. Sf6fKh4 4 g3 mate.iii) 4. ... Kf4 5. Sh5f Ke4 6. Sg3fKf4 7 Se2f Ke4 8. Sc3f Kf4 9.Sxdl/iv a2 10. Sc3/v alQ 11. Sd5fKe4 12 f3 mate.iv) 9. Sd5|? Rxd5 10. Kxd5 a2.v) 10. Se3? Bf6 11 Sc2 e4.

No. 3350 V. Kalandadze1 Comm.,

Ill Solidarity Tourney,1973-1976

No. 3350: V. Kalandadze 1. Rb4fRe4 2. g3t Kf5 3. Ra5f Reo 4. g4fKf6 5 Rb6| Re6 6. g5| Kf7 7. Ra7tRe7 8 g6f Kf8 9. Rb8t Re8 10.Rxe8f Kxe8 11. gh elQf 12 Ka2Qe6f 13. b3 Qe2f 14. Ka3.

No. 3351 A. S. Kakovin2 Comrri.,

Ill Solidarity Tourney,1973-1976

Draw 5+4No 3351: A. S. Kakovin 1. Bd2fKg3 (Ke5; Bc3f) 2. Belt Kh3 3. e5Bxe5 4. d4 Bxd4| 5. Khl a2 6. Bc4alQ 7. Bd6t Sxd6 stalemate.

No. 3352 A. S. Kakovin3 Comm.,

Ill Solidarity Tourney1973-1976

Win 5+4

Draw 4+4No. 3352: A S. Kakovin. 1. Re4fKa3 2. Sxb2*Sc5t 3. Kd4/i Sxe4 4.Sc4t Kb3 5. Se3 Rf4 6 Ke5 Rh47. Sf5 Rg4 8. Se3 Rh4 9. Sf5.i) 3. Ke3? Sxe4 4. Sc4t Kb4.JRH has 15 studies terminating incontinuous attack by wS on bRwhere the latter is tied to defendbS attacked by wK. Earliest: Zep-ler (1932), No. 744 in FIDE. Simi-lar is Rinck (1938), No. 1306 in1414'.

UK ISSN 0012-7671

GBR

Guy-Blandford-Roycroft (GBR) code for completely representingchessboard force. Class 1032 is the code for wQ, no rooks, bB and 2wS.4870 is the code for wQ, bQ, 2wR, 2bR, wB, 2bB, no knights. 0005 is thecode for 2wS, bS. In other words, the digit position denotes, from leftto right, Q, R, B, S; the digit value is the sum of '1 ' for each W pieceand '3' for each Bl piece. '9' is reserved for additional (promoted) force,in the appropriate position. Pawns are denoted by uncoded de.imal placedigits: 0000.35 would denote no pieces of any kind, 3wP and 5bP. It isoften useful to call the force so coded a 'class', especially when discus-sing endgame theory. The GBR code is convenient for indexed retrievalof chess positions and for representation in computer systems.

Th~ Chess Endgame Study Circle and EG 4 issues p.a. EG 51-54 for 1978 £ 4.00 or$ 10.00. Calendar year.How to subscribe:1. Send money (cheques, dollar bills, International Money Orders) direct toA. J. Roycroft.Or2. Arrange for your Bank to transfer your subscription to the credit of: A. J. Roy-croft Chess Account, National Westminster Bank Ltd., 21 Lombard St., LondonEC3P 3AR, England.Or3. If you heard about E G through an agent in your country you may, if youprefer, pay direct to him.New subscribers, donations, changes of address, ideas, special subscription arran-gerr.ents (if your country's Exchange Control regulations prevent you subscribingdirectly):A. J. Roycroft, 17 New Way Road, London England, NW9 6PL.Editor: A. J. Roycroft." A nalytical Notes"All analytical queries arising out cf studies published in EG should be addressed to:Prof. Neil McKelvie, Dept. of Chemistry, The City College, New York, N.Y. 10031,United States of America."Anticipations", and anticipations service to tourney judges: J. R. Harman, 20 Oak-field Read, Stroud Green, London, England, N4 4NL.To magazine and study editors: Please arrange to send the complimentary copyof your magazine, marked "EG E x c h a n g e", to: C. M. Bent, Black Latches,Inkpen Common, Newbury, Berkshire, England.THE CHESS ENDGAME STUDY CIRCLENext meeting: Friday 7th July 1978, at 6.15 p.m. At: 101 Wigmore Street (IBMbuilding, behind Self ridge's in Oxford Street).

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