Shelby Lyman: On LhessTraps for WaryU n waryIam one of those chessplayers and teachers who has always been irked by the “trap-pitfall” approach to chess. An emphasis on memorizing specific positions in a chess game in which the same position rarely occurs twice, seems to me, to be at the expense of the development of more general abilities.Yet the study of traps has its place, especially when general tactical themes are the main concern.Take for example thefollowing position from the third game of the Fischer-Larsen match in 1971.Larsen, who has lost the first two games, was tired or demoralized when he madeBLACKLARSENHO NO 90 O9X NX HXQR QN OB Q K KB KN KRFISCHERWHITEWhite's move ?his last move, Q(K)-B1, but that attempted defense ofDr. Ray Cathode•VReleases GlossaryOf TV TermsBy JAYSHARBUTT AP Television WriterNEW YORK (AP) — Dr.Ray Cathode, a leadingtelevision expert, has justpublished a major workcalled “Dr. Cathode’sGlossary of Television*Terms — A Guide to Understanding Network Television.”As a public service, we’d like to lay on vou somedefinitions the good doctor says he’s found used within the networks. They fall intodramas from the British Broadcasting Corp.— Pay-TV; Grumble, grumble, grumble, grumble.NETWORKEXECUTIVES— Senior vice president: An officer of raw, unbridled ambition.—President: An officerwho gets to go to Beverly Hills even wrhen the affiliates aren’t meeting there. At such times, he leaves an executive vicethe king pawn was to be short-lived. Do you see why?The fly in the ointment is the unprotected square at black’s QN3. It virtually begs for a white knight to occupy it where it can simultaneously attack the black rook and queen. At the very least, the black queen will be deflected from its crucial defense of the king pawn.Fischer pounced on Larsen’s mistake and played 3. N-R4 (after first exchanging twice with 1. PxP, BxP; 2. NxB, PxN).Larsen did what he could. On N-R4 he moved his rook to Nl, and on 4. N-N6, he moved the queen to the Kl square. Of course Fischer then played 5. BxP check, w'hich gave him a game-winning advantage.Recently another instructive example occured between Larsen and An-derssen when once again Larsen was snared as a result of an oversight. (SeeBLACKANDERSSENHO NO 90 O X 9X NX HXQR QN QB QKB KN KRLARSENWHITEBlack’s moveDiagram Two) Larsen’s last move R-B2 was a blunder.His last rank is vulnerable. On a check by the black rook, he must be able to move both rook and bishop to his QBl square, otherwise there will be a checkmate.Therefore Larsen’s queen pawn is not really protected by his bishop. Of course Anderssen, herew7 ith, played 1 . . NxP and Larsen resigned. Now the rook check reinforced by . . N-K7 check or just . . N-K7 check will be deadly.Our last position comes out of the scotch opening.BLACKHO NO 90 0 X 9X NX HXQR QNQB Q K WHITE1 BxH loses. Why?White has just played 1. N-Q5 and threatens, after an exchange of knights at QB6, to take black’s king knight.Black may try 1 . . BxN?? but white has a spectacular follow-up. He can play 1. QxB!!! After 1 . . NxQ, there would follow 2. N-B6 check. K-Bl; and 3. B-R6 mate!!!