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Section 2Friday, November 30, 1973THE HERALD(Diagram 1)BLACKPUCNO 90 OQR QN QB QKB KN KRGUGORSCWHITEShouldpiay iRjB? Why?(Diagram 2)BLACKPACKMANBO NO 00 O X ax NX BXQR QN QB QKB KN KRDO UNIT’WHITEFmd spafWmg! )eeision to sacrifice:(Diagram 3)BLACKPACKMANBO NO 80 O X 8X NX BXQR QN QB Q K KB KN KRDOMNITZWHITE| •Bile* s thmlTiifiQ K-Nl*etccrucialmoveOne of the most tantalizing judgments in chess is the decision to sacrifice or not in a given position. Exchange sacrifices, in particular, (rook for bishop or knight) present the problems.Either there must be a forced checkmate or calculable return of the material sacrificed. Or. if no immediate return or partial return is certain, there must be some strategic advantage and pressure, which promise good chances for a laterShelby Lyman on chessV•r ..’/areturn.Diagram 1For example in the position in Dia- too much for Puc; he collapsed weakly.gram 1, Gligoric (white) played 1) RxB. What has his justification? Study the position with the above criteria in mind and answer the question for yourself.Diagram 2tougherelegant sacrifice can be seen in our next diagram (Diagram 2), Domnitz-Pach-Now play the following moves to Puc's man. resignation: 1) RxB, PxR; 2) R-KBl, HOproceedQ-K2; 3) Q-B2, R-QB8: 4) N-R5, N-B5; 5). . R-K4! After 2) NxR, NxN, white is inBxN, PxB; 6 QxP, R-KN1; 7) BxRP. danger of either having his queenR-N4; 8) B-N4, R-Ql; 9) N-B4, P-R4; 10) trapped or being forced to retreat the. . P-B6 and a blackNxP; B-R3; 11) N-B6, Resigns.queen and face 2 .Notice in the context of play the many piece onslaught against his kingproblems plaguing him. I.e., four or five severely vulnerable pawns, badly placed bishop and knight, constant pressure from the well-placed white pieces. It wasDomnitz elected to prevent . . . P-B6 with his bishop move, 3) B-Ql at the cost of eliminating his queen’s escape path. After a short skirmish Pachman wasable to gain the position in Diagram 3. The moves went 3) B-Ql, R-Ql; 4^ B-K2, K-R7; 5) P-N4, P-KB6; 6) P-N5, Q-B5; 7) B-Bl, R-KRl!! Pachman can win: Why?Diagram 3White’s queen is trapped, for black threatens 8 K-Nl and 9) PxP. Unable to avoid heavy material loss, white resigns.The black position after Paehman’s sacrifice was too much for Domnitz to contain.Copyright 1973 by Shelby LymanAddress your questions in care of this column to Paddock Publications, P.O. Box 280, Arlington Heights, 111. 60006.
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Wheeling Herald
Wheeling, Illinois, US
Fri, Nov 30, 1973
Page 19
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