1 Draft Collected Chess Problems of Michael Lipton
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1 DRAFT COLLECTED CHESS PROBLEMS OF MICHAEL LIPTON 12 April 2013 These 480-odd diagrams aim to be a collection of all my sound unanticipated problems to date. Many thanks to Barry Barnes and Brian Stephenson for major, useful efforts, and to Jeremy Morse, Bob Lincoln, John Rice and Paul Valois for substantial, valuable help. But there are still gaps. Any help or advice will be appreciated and ack- nowledged. Please do not cite diagrams that are (a) unpublished, (b) not labelled C+, or (c) anticipated: all this will be amended appropriately in a final draft. First, please send position, author, source for any anticipations. Second, from this collection, I shall extract and publish a selection of my problems. YOUR opinion on what should be in the selection is welcome and will be carefully considered. In this draft collection: If a problem number is in block, Barry Barnes and I agree the problem SHOULD go into the selection. If it is in italic, only one of us thinks so - often, because we assess the risk of anticipation differently; sometimes, because Barry has usually stated his view only on 2-movers. If the number is in plain type, Barry and I agree that the problem SHOULD NOT go into the selection. Please suggest problems where you think one or both of us has got it wrong. Third, there are a few other areas where I would welcome help. 1. Several "saves" and improved versions by John, Barry and/or me appear below. All the problems are com- puter-tested, but one or two proved unsound. Several others have serious faults. Probably, more are improvable. Please send any further "saves" or improvements, and your choice among versions where relevant. 2. Can you identify sources for problems, reported as unpublished, which I have published but forgotten? 3. Do you recall any other problems by me, omitted here? [Re 2 and 3: I record no ML problems published between May 1979 and 1984, nor in 1996: is that true? 4. Who might like to publish any of the unpublished problems here, including corrected/improved versions? 5. Have you ideas for a publisher of my final selection? (The write-up of the selection - and even the redrafted collection - will be indexed, and more user-friendly, less terse and jargon-ridden, than the draft below. Problems will not, as here, appear in date-order. Instead I shall group them by 'families' linked by ideas (e.g. BQ v WS miniatures; white correction; ...). In the selection this will often involve a choice among several similar positions below. I'll improve formatting and check/tidy solutions and notation: in this draft, many mistakes remain. Any help, advice, notice of mistakes, or improvements will be appreciated and acknowledged; please email [email protected] In any case, try to enjoy at least some of the problems! Michael Lipton, Brighton, April 2013 2 1. Michael Lipton, The Problemist, Sep. 1950, p.430. 3x. 5+2. First published problem. C+ d7h8 1.h7, Kg7 2.h6+ Kh8/K~ 2g7 model/h8Q. Sq-clearance, star-flight, min. 2. ML. The Problemist, March 1951, p.452, 2x.. 5+1. C+ b7d5 1.Sc3++ Kc4/Kc5/Kd6/Ke6/Ke5 2.Qd5. Plus flights plus 2; min. 3. ML The Problemist, 1951 3x. 8+7 C+ h3h1, corrected BPB 5-9-2012 1f3 R~ 2.aR, cR, BxR g2 3.Sf2. Complete R grab, "most original in view of the unpinning key" (CSK). But in the published version (without WBc1) several BR moves lead to duals by 2.Rc1 and/or 2.Ra1. Barry's +WBc1 seems the only sound way to stop these. 3 4. ML, The Problemist, 1951. 2x. 3+1. C+. b4b7. 1.Re7+ K~6/K~8 2.Qe6/Qg8.6 flights; min; 5 'distinct' models. 5. ML. The Problemist, Nov.1951. In memoriam A.C.White. 2x. 7+7. C+ h6e4 1.Qa7, ~2.Qd4,Qe3. Rxd5/Re5/Rf3/Rf4 2.Re3/Sd6/Rd4/Sg3. Four self-block unblocks by unpinned BR. Construction looks improvable. 6. ML, The Problemist, Nov. 1951, p.493. 3x. 3+4. C+. b3h4 1.Rb8. Kh5 2.Rg1. Kh3, f2 2.Rg7. Min ambush; 7 mirror-models. 4 7 "Sixty years on": ML 16/9/2011, after ML 1951. The Problemist, March 2013. 3x. 10+5. C+ f3a6 1.Bf1 e2 2.Rxe2 IndianBS wheel. 1.Rc2? e2 2.Rxc4 e1S+! ML, TP Nov 1951: 2RS4/k2P4/3p4/1PsPR3/S7/5p2/5Bp1/6K1. 2x. 9+5. C+. 1.Re3. Reconstructed ML 16/9/2011: SK6/3p4/k2P4/3p4/1PsPR3/S7/5p2/3B2. 2x. 8+5. C+, but identically anticipated by G. Paros, 2nd h.m., Magyar Sakvillag 1928 (Brian Stephenson). This 3er attaches the 2-move BS wheel onto a capture-Indian. 8. ML, Chess, Oct. 1951v. 2x. 7+11. C+. h2h5 1.Rg1 ~/Rb3/Rb4/Rc2/Rd2,Bf4+/Rxe2+ 2.Sg7/e3/e4/e8Q/Sf4/Bxe2. Of 4 BR openings of a1-g7, two are unpins, two bivalves. 9. ML, The Problemist, Nov. 1951, p.493. 2x. 6+6. C- (cook 1.Qb1) e8d6 1.Qd2 ~2.Qxh6. e3 2.Qxh2. Qd5 2.Qxd5. Qd4 2.Qxd4. (Qxd2/Bf4 2Qxd2/Qxf4). e3 is Gamage+anti-Gamage; Qd5/4 are 'anti-Gamage 2' (as in Schiffmann 2). Meredith. 5 10. ML 1951, version of 9 by John Rice, Sep 2011, unpublished. 2x. 6+5. C+ b7d8 (1.Qh7? Qxc6+ 2.Sxc6; e5 2.~Qc7; Qxh5 2.Qd7; Qb3+!) 1.Qd4 ~/ e5/(Qxd4)/Qd6/Qd7/(Be7/Bf6) 2.Qh8/Qxh4/Rc8/Qxd6/Qxd7+/Bb6/Qxf6. Crude Q recapture replaced by 2.Rc8, corrected by Qd6,7. However, 1...Qd7 no longer pure anti-Gamage 2 (defeats 2.Qh8 by check). Meredith 11. ML-JMR, alternative version of 9, unpublished. 2x. 6+6. C+ b4d6 1.Qd2. 1.Kb6? e3! Still Meredith; loses 1.Qh5? (QxR+/Qb1+). 12. ML. The Problemist, Nov. 1951, 2x. 9+8. C+ e5c5 1. Sg5. Muleblocks (2 with white interf) with flight. Improvable? 6 13. ML. Stratford Express 22 Feb 1952, 2x. 10+12. C+ g8e6 1.f4 ~2.f5. Bf6/Pf6/Bc6/Rc6 2.Bg4/Sd4/Sc5/exd5. dxe4/f5 2.Bc4/exf5 R Grimshaw unpin + P Grimshaw unpin (without WQ). 'Inspired' by Bonavia-Hunt's research. 14. ML, The Problemist, Jan 1952. 7+5. C+ a8a1 Note improvement: WBc3 BSb2 Also C+ 1.Kxb7 Zzw Qh7+ 2.Bd7. Bf3+,Qe4+,Qg6 2.Bc6. Be2,Qd3,Qf5 2.Bb5. Bb3(,Ka2) 2.Bxb3. Qa2 2.Sc2. Bxa4 2.Rxa4. Six half-pin mates, two of them cross-checks all- owed by key. Better WBc3, BSb2 v dual after flight. 15. ML, v. The Problemist, July 1952. 2x. 8+10. C+. a8d8. Cp 333 1.Bd4 ~/c6/c5!/e6/e5!/(Qc6) 2.h8Q/Bb6/Qa5/Bf6/Qg5/aSxc6. Magee: each interfering BP corrects by line-opening & closing for W. (Orig: WRh7, h5g5, a8h6, C+) 7 16. ML, The Problemist, July 1952. 2x. 11+7. C+ b1d6 1.Sxd7 ~ (eS~)2.dxc5, (cS~)2.dxe5. eSxd7/cSxd7/Bxd7/Qxd7 2.e5/c5/c8Q/e8Q. Four self-pins are also unblocks for white Pawns. 17. ML, The Problemist, July 1952. 2x 7+5. C+ g5c8 1.Qc3 d5 Bxe6. e5 2.Bxd7. (d6/exf5/Qxc3/b4/Qc4/Qc5/Qc7 2.Qh8/Re8/Rxc3/Qxc5/ Qxc4/Qxc5/Qxc7.) 1.Re1? d6! 'Unusual' (constructive concurrency) mates by unpinned WB. 1..d6 Gamage. Meredith. 18. ML. The Problemist, Nov 1952. 3x. 4+2. C+ b8h3 1.Kc8, Sc5,f8 2.SxS. Sc7,d8 3.KxS. S else 2.RxS. Complete BS grab. This minimum setting (6 units) is one of 11 miniatures by ML in his article exploring possible matrices. 8 19. ML, The Problemist, Nov 1952. 3x. 5+2. C+ c1a1 1.Re6! S~ 2.RxS. A slightly surprising key? 20. ML, The Problemist, Sep 1952. 2x. 6+4. 2x C+ b8a6 1.Qc6+ aSb6 2.bxc8Q. cSb6 2.bxa8Q. Rb6 2.Bd3. Checking key self-pins to unpin WP. C+ (14-2-2012): WQd7 (for set Rxb7+ 2.Qxb7) and/or WBe4c2. Still improvable? 21. ML, The Problemist, Sep 1952 2x 4+3C+ h3g1 1. Qg6. Qd1,Qe2 2. Bf3; Qb1,Qd3,Qc4 2. Be4; Qb5 2. Bd5; Qa6 2. Bc6; (Qxg2+ 2.Qxg2). Miniature where 4 BQ unpins lead to shut-offs by the WB. Black's 8 Q moves to white squares are dual-free; her 3 moves to black squares aren't! 9 22. ML, The Problemis,t Sep 1952. 2x. 6+3. C+ g6a8 1.Re8? Rb6! 1.eRxc6! Ra1/2/3/4/5/xa7/b6/xc6+ 2.Rc1/2/3/4/5/Rc8/ ~Rb6/Bxc6. Meredith with 5 BR unpins of self-pinned WR. Threat 2.Rxa6 never happens. 23. ML. The Problemist, Nov 1952. 3x. 5+2. C+ c2a1 1.Bd7? Sc8/Se8/Sc4/Sxe4 2.BxS/BxS/RxS/RxS. Sb7! 1.Rf8! Sc8/Se8 /Sc4/Sxe4 2.RxS/RxS/bxS/BxS. Sf5,7/Sb5,7 2.RxS/BxS (Kxa2 3.Rh) Complete grab miniature; 4 changes try-key 24. ML, Chess, March 1953. 2x. 5+4. C+ h1f1 1.Sc1 ~2.Rg1. Qb7 2.Sb3. Qe4 2.Sd3. (Qxc1 2.Rxc1). Two pins, by unpinned BQ, of WR make critical errors, allowing mousetraps by the WS to open other WR's battery. Meredith 10 25. ML, Al Hamishmar, 11.2.1953 2x. 8+10 C+ b3d5 1. Qd3! ~2.Qc4. Sd6 2.Sxf4 (2.Scx7?) Se5 2.Sxc7(2.Sxf4?) (Kxe6/Bd1 2.Qf5/Qe4) Mutual-guard-cut (one-way) Herpai, with dual avoidance by black self-unpin, and a flight.