Test your chess IQ : master challenge 9781857441444, 1857441443

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CADOGAN CHESS BOOKS

Test Your Chess IQ Master Challenge

CADOGAN CHESS SERIES

Chief Adviser: Garry Kasparov Editor: Murray Chandler Russian Series Editor: Ken Neat Other CADOGAN CHESS books include: & C AFFERTY

AVERBAKH

HARDING

Chess Middlegames: Essential Knowledge

Play the Evans Gambit

BAGIROV

L ALIC

English Opening: Classical and Indian

The Queen's Indian Defence

BAGIROV

NEISHTADT

English Opening: Symmetrical

The Queen's Gambit Accepted

BRONSTEIN

&

FURSTENBERG

The Sorcerer's Apprentice

KALLAi Basic Chess Openings

DAMSKY

KRASENKOV

The Heavy Pieces in Action

Open Spanish

GUFELD

TAIMANOV

An Opening Repertoire for the Attacking Player

Taimanov's Selected Games

KASPAROV

TIMM AN

Lessons in Chess

Studies and Game

MEDNIS

VAN RIEMSDIJK AND H AJENIUS

Practical Opening Tips

The Final Countdown

MEDNIS

&

CROUCH

Rate Your Endgame

WATSON Play the French (new edition)

For a complete catalogue of C ADOG AN CHESS books (which includes the former Pergamon Chess and Maxwell Macmillan Chess list) please write to: Cadogan Books, 27-29 Berwick St, London W l V 3RF

Test Your Chess IQ Master Challenge

by

AUGUST LIVSHITZ Translated and edited by

KEN NEAT

CADOGAN che.\s

LONDON, NEW YORK

First published I98I by Pergamon Press as Test Your Chess IQ, Book 2. Second edition I989. Reprinted I99I This edition first published I997 by Cadogan Books pie, 27-29 Berwick St., London WI V 3RF Reprinted I998 Copyright

© I98I August Livshitz © I989 Ken Neat

English translation

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, electrostatic, magnetic tape, mechanical, photocopying, recording or otherwise, without prior permission in writing from the publishers. British Library Cataloguing in Publication Data A CIP catalogue record for this book is available from the British Library ISBN I 85744 I44 3 Distributed in North America by The Globe Pequot Press, Old Saybrook, Connecticut 06475-0833, USA.

6 Business Park Rd, P.O. Box 833,

Telephone I-800 243 0495 (toll free) All other sales enquiries should be directed to Cadogan Books pie, 27-29 Berwick St., London WI V 3RF. Freephone 0800 328 0242

Cover design: Berfort Reproductions Printed and bound in Great Britain by BPC Wheatons Ltd, Exeter

Contents Introduction Tests

1-56

. . .

.

. . . .

. . vu

. . . . . . . . . . . . . . . . . . . . . . .

1

Progress Chart

.

Index of Players

. . .

. . . .

. . .

. .

. . . .

. . . . . . . . . . . . . . . . . . . . .

115

. . . . . . . . . . . . . . . . . . . .

117

.

v

Introduction DEAR reader! You are about to commence the tests in our second book. Unless you are already an experienced player, we seriously recommend that you first attempt to solve the positions in Book 1 . The first book also contains useful general advice on how best to tackle the tests. As in Book 1, each of the tests comprises eight positions which you are required to solve. We remind you that the tests have a time limit, and that each test has a basic evaluation of 40 points, with the proviso that you use the time allotted. If you use more time in solving the test, then for every extra 5 minutes you should deduct 1 point. If on the other hand you solve the test more quickly, then for every 5 minutes saved add 1 point. For an unsolved position deduct 5 points from your score. This book is intended, in the main, for players of county strength, corresponding to l st2nd categories in the USSR (about 1 60-200 on the BCF scale, or 1 900-2200 on the Elo scale). As in Book 1 , we insistently recommend that you write down your solutions. The positions should be solved without moving the pieces. Check your solutions with the answers only when you have finished solving all the positions in a given test. The time taken for a test should not include the time spent checking it. As in the first book, all the tests are arranged in themes, for easier assimilation by the solver. We recommend that the combination solving should be attempted once or twice a week, but not more. Experience has shown that more frequent attempts are less effective. Practice has shown that it is very useful to look through a test some 2 to 3 months after solv­ ing it, in order to refresh it in your memory. Over a period of more than 30 years the author has taken classes with groups made up of a wide variety of players, from novices to masters. There is perhaps nothing that arouses more interest in students than the solving of combinations. It is probable that a role is played not only by the aesthetic side of the question, but also by the purely emotional aspect. And one further point to which we should draw your attention. Often the reader may find a line which is not given in the solution, i.e. a second method, which is also correct. In this case there is no j ustification for considering that the position has not been solved. However, if the new solution does not lead to mate, as in the game, but only to material gain, then your score for the position should be 1 -2 points lower. If you do find a second solution, you should check it most carefully.

Your Chess IQ A correct solution of all the tests in Book 2 will gain you 2240 points. It is possible, of course, to score more than this 1 00% total by earning time bonuses. On the basis of sample

vii

viii tests sent out to a wide variety of volunteers, we have compiled the following approximate table for determining your 'Chess IQ' in terms of a BCF or Elo rating: Percentage score

Actual score

BCF rating

Elo rating

110 100 90 80 70

2460 2240 2020 1790 1570

210 185 160 135 110

2300 2100 1900 1700 1500

As in Book 1 , we must emphasize that these figures are based on relatively small samples,

·and we would therefore be interested in receiving your results!

The progress chart The chart on p. 1 1 5 is to enable you to record your progress. The scoring procedure was spelled out in detail in Book 1, and reduces essentially to the following : from the total evalu­

ation for each test of 40 points, deduct 5 points for each position completely unsolved, and

deduct from I to 4 points (depending on the closeness to the correct solution) for each par­ tially solved position. This gives you your basic score, to which you should add or subtract the appropriate time adj ustment, giving you your net score.

Editor's note Note that 'W' ( ' B ') beside a diagram number indicates that it is White (Black) to move, while

'='

indicates that the player to move is aiming for a draw rather than a win.

Tests 1-56

Double attack

2

Test 1

Positions 1 -8

Time for thought 75 minutes. Theme : 'Double attack'.

1

B

::r.,.,,.,.,%

� ;-,.,.,,,.,.�

-· � m "1 � -i fl i ,,,,� •- - �,• � �%1--m t.�,� �,,,,) �-=/� - �.-- - - • m1m �,,� • �,,� g �"jl �,,� ,,,,� � m �,,� n � �- •� - �� �nm� ,,,,,

ir.'""X

Wo:.,,� � - - - • 0-,.,,.,,'Z

--

- - ..-� m 1 fl x m n m� Ji• i � D� J_ �u� '�II .. - - �m� ��� - -Ji- - - � - Ji . 'ii' - -jt' Ji � - - -

%'!,,,)

�,.,,,,�

w

m ..t m •. � �..� . - m 1 m� � m 1 • t m•a • � i D - r· 0,,,,)#. ,,,,,% � m � � �� lt� - Ji - - -�%� - D �'°/� - - - �/nd� �

01""",,.%

� � � ,.,.,,,.�

:,,, ,,,,:

,,,,%

%

0,,,%

�

,,,,%

14

Diversion

Solutions to Test 6 4 1 . Iordanov-Spiridonov, Sofia, 1 964. 1 . . . Qg5 ! ! 2 Rd l

(2 Qf2

is answered by

2 . . . Qf4!

or

2 . . . R xf3! )

2 . . . R x f3 ! 3 Q x g5

Bd4 + White resigns. 42. Driksna-Strautinsch, Corr., 1 968. 1 . . . Qc2 + ! ! 2 R x c2 Nb3 + ! 3 B x b3 R x d l mate. 42. Khavin-Gufeld, Kiev, 1 956. 1 R x c l ! ! Q x c l 2 B x e6 + Kh8 3 B x g7 + ! K x g7 4 Qf7 + Resigns. 44. Tal-Dvoryetsky, Leningrad, 1 974. 1 Bc4!! f5 (on

Qh6

1 . . . B x c4 there follows 2 R x d7 Q x d7 3 Q xf6 + Kh5 4 g4 + Kh4 5 (2 . . . B x c4 3 Q x c6 ) 3 B x e6 Resigns.

mate) 2 exf5 Q x f5

45. Flesch- Paoli, Miskolc, 1 963. 1 B x e5 ! B x e5 2 d6! R x d6 3 Qa4 Resigns. 46. Bilek-Stein, Kecskemet, 1 968. 1 . . . R x d4! ! 2 c x d4 Bb4 ! ! 3 Ra3 Q x a3 ! White resigns. 47. Solntsev-Vatnikov, Moscow, 1 958. 1 . . . Nc4+ ! ! 2 N x c4 d l = N + ! !

K x g3 5 Be5 + ,

or

(2 . . . d l = Q is wrong in view of 3 Rh2+ Kg4 4 Ne3 + 3 . . . Kg6 4 Rh6 + Kf5 Ne3 + and 6 N x d l ) 3 Kb3 N x f2 White

resigns. 48. Fuchs-N.N., Schwerin, 1 9 5 5 (from a simultaneous display). 1 Q x c6 + ! ! Q x c6 2 Nd4 + ! ! N x d4 3 Re7 mate.

Test 7

Positions 49-56

Solving time - 60 minutes.

49

w

••• �,=,,� - �� fl - - IJ ""'� ""'� i � �•% �•1 �o,,J� • j_ fl ""'� - ml • i �- - � - ji},i" � � · ,,,, � u. - � - �-,--� � - - - " �,,,� - - • xm �"� �,,,,,�

� .. ,,,Y,

�,,,,,Ji,< ,

r,;,,.,);;,

50

B

·- - -·�� fl ""'� 11 �,,� ,, - �� ""'� i ml i ml - � �� �,,� - - �1' fl �,� ""'� �ml.t.11 • - - � fl • ml � - � - � - ji},in ""'� �- ··� mx r,;,,.,,�

Z'i'""""%

� � :;::..,.,.,...,.;l%

,..,,.,�

15

Test 7

51

w

·· � -·�,.,,,.)] � � • �1' -i 11� 1 m � �,� m 1 m 11 �,,,� - -i - � - - - • �,,.,, ,.� m J., D - • � - m tr m �,,� - - - �. . �- ---"

52

w

""'

�/.NN;::t,::

" " � ...,,,.)�

� � :::;,.//,.,,.�

B

- � �· -� - m -t m � '.� . , � i �� - - 11 ""'� - - � - m 1 �i� %L,,x � �- � n� �,,,,J, � � m 1 m � �,,� • - �•·� �� �,,� -JI- - •• • :::;,,.n,.,.�

�,..,.,.,,.%;:'.

,,,,,,,�

54

w

..

: ,

?/,,,,}»_

- - ··� �JI ""'� _._ _ _ � iifil '�- �..:..� • "* �' - - -� - � 11 m 1 m �,,� " n 1 m - n -jl- ��L� � � � .. � � � · a - ,. , ,. ,�, � .....� . - - �--� ••• �----·"

�,.,.,.,.,.:;%:

�,,.,.,,%

�

�

�,.,....,.,....�

:

,,

:

� ,,,,�

�

,,,,

%,,.,,,,.�

w

- - - - - %,,,,,Y, - � �� --. �� . E,J. m - ?im,,. � 1 11 � m 1 m - J,1 - - �,,� - - - �a , , ,,,,� ,, J,1 �,,� ... ���� • n �,M � r �,,� � - - L,,� ••. �-

,,,,,,u

55

�,,,,]�

,,,,,,,,,;

«i,.,,.,,;::t,::

53

0 � � • ·- - • �,.,,�, - - m 1 m i. - i �,,,,��, • �,,,,)� • �� � � � � �� Jr� D ""'� ""'� �.. � mxm �--,,;, "� E �,,, - m tr m � - a �m� � �m� �J - �NU/� �- - •

56

w

:

·- - ··• 11 1 m z m 1 m � � • m 1 11 1 m �,,,,) - - - - �� � � %L.x % � - � - • .. ,,� �" � - - -·�\,%11 � - - - - -� 0,,,,,�

� ,, ...�

\

16

Diversion

Solutions to Test 7 49. Yurkov-Gusev, M oscow, 1 963. 1 Q x d8 ! ! R x d8 2 Be l + g5 3 R x g5 N x g4 4 Rg8 + Resigns. 50. Reifenberg-Hartlaub, Wiesbaden, 1 9 1 7. 1 . . . Q x h2 ! ! 2 Re l Q x e2 + ! 3 K x e2 Rf2 mate. 5 1 . Horwitz-M ayagoitia, Mexico, 1 947. 1 Qe l ! ! Qh6 2 Qe3! Qh4 3 Qf4! Resigns. 52. V. Zhuravlev-Koloskov, Corr., 1 962. 1 R x c5 ! ! Q x c5 2 N x e6 + ! ! f x e6 3 Q x g6 Resigns. On 3 . . . Ra7 comes 4 B x h6 + R x h6 5 Qg8 + Ke7 6 Rg7 mate. 53. End-Podgayets, Garrakhov, 1 967. 1 . . . R x b2 ! ! 2 Q x b2 (2

R x b2 is no better in view of 2

...

Qcl + ) 2

. . . B x d4 + 3 Kfl Qe3

4 Qc2 B x h3 + ! ! White resigns. 54. Keller-Nievergelt, Zurich, 1 960. 1 Be5 ! ! R x e5 2 Ne8 ! Nf5 3 Nf6 + Kh8 4 Qg8 mate. 55. Sandrin-Kramer, Omaha, 1 949. 1 Qf7 + ! Kh8 (on

1

...

R xf7

there follows 2

g xf7 + Kh8 3 Rg8

mate) 2Q x f8 + !

B x f8 3 R x f8 + Rg8 4 g 7 mate. 56. Bronstein-Ratner, Moscow, 1 945. 1 N x e6 ! ! f x e6 (in the game Black chose

R xf8 4 Qe7 Kg7 5 Q x b7 Nc8 6 Qd7

1

...

R x dl ,

but after 2

N xf8 R x h l 3 K x hl

he resigned) 2 R x d7 N x d7 3 Q x e6 + Qf7 4

Rh8 + ! Kg7 5 Rh7 + , and White wins.

Test 8

Positions 57-64

We continue the theme of 'Diversion'. Time for solving this test - 60 minutes.

57

w

·- - - � � .t. • """ � · - �.. :r,.,,,.,.� � � �·�/� 'if, "' : , .,,. ,��,,, E %,,,,,� �uu.-X x • �: '� i �,,,� � �""� . - �� � 1 �,,, n!% - - m - - - �� �,,� � ��,,,,� - - - �,.,.• �

"

,,,,�

,,

'

�,,,,,�

0'

�,,.,.,,.,.,�

, ,,

58

w

-·· · ·� -im ,,,,,!% %� � 1 II!% - m 1 m �L� " -�- ,,,,,,);,; � - - - % a n : , , ,,,,�,, ; - �Li% AR �,,� m ��n �Li% � o ,,,,,!% • �- - � - �,,,,,,,� �mo� l'«,,,,,Y,

,,,,,

,

�i:'"N'�

17

Test 8

59 w

- - -·� � rt _.._ _ Iii 0..J� �.,,,,,.� � � � - - �fl fl ,,,,,� ,,,,,� - - mAm � - - �fl ,,,,,� �� �- �-� n� � �,,,� �,,, -,, ;;: • ��,,� B - - �,� �,.,,,,.� �g - - • �mu� %

60

B

"

Zl,.,.,.,.,.0

�,.,. ,,,.

,,,,,,,,.,,,,,. �

61

w

1{c",.,.,.,.:%

" % �,.,,.,.,.�

62

B

63

-·- - - - �,,� 11• - • - fl �,.,.,,J] �L� m 1: m - - � - • ... � - - - - - - � jbg� - � - • �///// -

B

lb. �,,,.,.� �,.,.,.,. ,.x

·- - � � � - �,r,·, � m 11 ,,,,,� · 1 � • 11 - �11 �.,,,,,� �,,� ,,,,,� m .t m m . -.. r ,,,,,� � , - m 1 m - - - , �: n a � �,,� n � n - - - - �_/"� �,,,,,.}� � ,,,,. .

,,

64

w

�,.,..,,,.0

�- - ?di � ---·fl ,,,,,� �- m ,,,,,� ''.:'� � 1 D � � � iD� �lli - • - fl m �,,,� �,,,� � 1 n - �� B - jt - � �,,� - � - !! - - - - -· -

�..:..�

Diversion

18

Solutions to Test 8 57. Vorobyets-Kogan, Lvov, 1 974. 1 R x c5 ! Q x c5 (or

3 Re?+ decides, R x h6 + ) 3 R x f6

1 . . . Qb8 2 B x g7 K x g7 3 Rel +) 2 Qg5 ! Rg8 (if 2 . . . B x h6, then 2 . . . R x h6 there follows 3 Q xf5 + Kg8 4 Qf7 + Kh7 5

while on

B x f6 4 Qh5! Resigns.

58. Najdorf-Schweber, Buenos Aires, 1 969. 1 B x d5 e x d5 2 Qg4! g6 3 R x d5! Qf8 4 Bb4! Resigns (if 4

. . . Qe8, then 5 Rel Qc6 6 Rc5!

is decisive). 59. Almus-Herman, East Germany, 1 957 (variation). 1 Ra8 + ! B x a8 2 Q x a8 + Qf8 3 Bh7 + ! K x h7 4 Q x f8 Resigns. 60. Samuelson-Hilderbrandt, Halmstad, 1 95 1 . 1 . . . Re 1 + ! ! 2 Q x e l Qd4+ 3 Kh2 Rh4+ 4 Q x h4 Q x h4 + 5 Kg l Qd4 + White resigns. 6 1 . Wade-Duckstein, M uttenz, 1 9 7 1. 1 . . . Qc7 + ! 2 Q x c7 (on

4 a8 = Q Qc2 +) 2

2 Kg2

Black would have continued

2 . . . Q x c4 3 R x e8 + Kh7

. . . R x e2 + 3 Kg3 Rd 3 + 4 Kf4 g5 + White resigns.

62. Kalabukhov-Grigorian, Kiev, 1972. 1 . . . R x c2 + 2 Kb l Qb6 + ! ! 3 N x b6 B x a2 + 4 Ka t Nb3 mate. 63. Lewi-Zemlin, Corr., 1970/7 1. 1 R x e4 ! ! Q x e4 (forced, since

2 Rh4

was threatened) 2 Q x f6 + Qg6 3 B x g5 + Kh5 4

g4 + Resigns. 64. Rogozin-Laptev, Zelenograd, 1 974. 1 Rg2! Rdg8 (or

1 . . . R x g2 2 fx e6 + Q x e6 3 B x h5 + ) 2 f x e6 +

Q x e6 3 B x h5 + ! R x h5

4 Qb7 + Resigns.

Test 9

Positions 65-72

Sixty minutes are allowed for this test, which concludes the theme 'Diversion'. Since this theme occurs very frequently in practice, we recommend that you should once more look through all the examples of it ; this will without doubt be of considerable benefit.

65

w

·-�-·-·�•� 1 r !i},j � �� • ""'� �;,,,;� " ""'� �, ,,.,,�.. ; �•� fl �L� fl • �,,� ... � - m 1 m � �,,) m 10 - � � - � �.... jl • � �,,,� D � m �B ""'� � m iW wg"� %• %. �'ii' • g� �nm� uL,,v.

�,,,,. v.

,

0

>
'j - u ., �

-

-

-

�,... }ff,

,

,

;

22

Decoy

Solutions to Test 1 0 73. Szabo-Bronstein, Zurich, 1 95 3 . 1 Rd8 ! ! Q x d8 2 Qh8 + Kf7 3 Q x d8 g5 4 R h 6 Resigns. 74. Muryada-Yakubek, Corr., 1 963. 1 . . . Rh2 + ! ! 2 K x h2 R x h4 + ! ! 3 g x h4 Q x h4 + 4 Rh3 Qf2 + White resigns. 75. Klompus-Vinklazh, Corr., 1 958. 1 Rd8 + ! K x d8 2 Qb8 + Kd7 3 Q x b7 + Kd8 4 Qb8 + Kd7 5 c6 mate. 76. Taimanov-Golombek, Stockholm, 1 952. 1 Rc7 ! ! f6 (on

R x eB + )

1 . . . Rf8

there follows

2 Reel g5 3 R xf7!,

while if

1 . . . Q x c 7,

then

2

2 R x e8 + Q x e8 3 Qh6! Resigns.

77. Tayar-Bradley, Birmingham, 1 963. 1 R x c6 + ! ! K x c6 2 Q x d 5 + ! ! K x d5 3 Be4 mate. 78. Westman-Gavanski, Krakow, 1 964.

1 B x d6 c x d6 2 R x e8 ! R x e8 3 Bf5 + ! ! Resigns (3 . . . Q xf5 4 N x d6 + ).

79. V. Zhuravlev-Kapengut, Riga, 1 968.

1 . . . B x f3 + ! 2 B x f3 Rh2 + ! 3 K x h2 N x f3 + 4 Kg2 N x d4, and Black won. 80. Ratner-Pokorny, Moscow, 1 946. 1 Bb2! Qg6

(1

...

Q x b2 2

R x h6 + , or

1

...

Qf7 2

R x h6 mate) 2 Bh5! Qh7 3 B x e8, and

White won.

Test 1 1

Positions 81 -88

Somewhat harder than the previous test, but it should not prove too difficult. Time allowed - 60 minutes.

81

w

-

-·- ..� � � � � - �fl �,,.,,. � ""'� �,,,,,� � � i . - fl �"� If - i - � - �Ii m tr m �--� - - m � m n ""'� - - n �--� �N � wm � m . - • %�,

�,..,, ,.�

.••. •••..

�,,,,,,,;:

,,,,,, ,,. ,,, ,.;,t;

r,;,.,,,,.�

82

B

- - - -·- • fl ""'� 1 m �,,,,,� � - - m � 1 11 "' '� m � 1 .11 .. .. . , � n ""'� -·- - m tr m - � � - �""� D� tg l! . � � -· - - -

23

Test 1 1

83

w

�''.:''� · m tt m �· �,,,� m tt m 1 11 ff - m 1 m - m 1 m �- - � - II � -� �--� - - --- � � - - n �,,� - - m �,.. •xm

84

- - - - - - � " ii � . • �� •7, ff 11 �,,,� �""'�� ff . ... -..�: � � i � - -·- m 1 m m x 11 ·- - - B ""'� - - - -·

86

w

�,.,,,)#.

87

B

0.,.,,. �

•

·- · - �% - - - �""'�� i - �II - "''�� -·- � - � �'f'4J i - II� � x � � �,,, - - - � �,,, 11� '* m ll� � m � A �,,, ,,� • �... � , ... .... , x r,,II - a ,,,..,.,.,,,,.%

:if,.,,, ),.%

,,,

,!

z

""- .... ¥.

..

�n.-n z

B

�,,,,;�

�,.,....,,,%

-·� � !i2l fl - m ""'� ""� 1 � 1 11 J.. fl - - - - � - tr ••m : . . . .. : ��a � !i2l - - - • �,,� � Ir �- . .� �- ll �,,,� jt B �/NH� �,)%, • • L,� - - �/"� � - �� /,,.,..,.,N%

,,.,,.,)#.

,}#.

85 B

�-

-

88

w

-·- - m 1 m 1 1 m a•m 1 m �""'�� - - ff . - �,,.,,,,� ���� - � - • - tt n �,,,� � - m l) ll II - - - - -·

�--,, �

-

�,..,.,. ,.,.%

l&Jf

-�: · � � .�.. .... � - - - 11 �L� i - m � J.. 11 �L� �,,,� 11 - fl �,,� - �,,,,} -#. � � . � � - -� �,,,.,; - JL ��-� 11 �� m ' '/� - �- �-% /�% �,:...�

�,..,.,..,.,.z

'1'.:

�

�...,,.,.,,.,.:i;,::

�,,,, ,%

24

Decoy

Solutions to Test 1 1 8 1 . Stein-Filip, Moscow, 1 967. 1 R x f6! R x b l + (or

I

...

K xf6 2 Qd4 + ) 2 Q x b l (not 2 Kg2 Rh2 + ! ) 2 4 Qe6 +) 4 Qd4 + Resigns.

. . . K x f6 3 Qe4

Qf7 (there is no other defence against

82. Shugayev-Sevastyanov, M oscow, 1 960. 1 . . . Re l + ! ! 2 Kb2 (or

2 K x cl Ba3 + + ,

and wins) 2 . . . Bd4 + ! 3 N x d4 R b l + ! 4 Ka3

Qa5 + Resigns. 83. Capelan-Bot, West Germany, 1 970. 1 Q x f8 + ! Kh7! 2 Qg8 + ! ! K x g8 3 Qd8 + Kh7 4 Qh4+ Resigns. 84. Darga- Prameshuber, Graz, 1 96 1 . 1 R x b2 ! ! Q x b2 2 Be5! Qc l (other moves are even worse, e.g.

N xf6 + Kf7 5 N x h7 )

2 . . . Qc2 3 Qg5 f6 4

3 Nf6 + ! Kh8 4 Nh5 Qc2 (other continuations are no better) 5

Q x f7 Resigns. 85. Rubel-Usachy, Tashkent, 1 962. 1 . . . Ra t + 2 Kg2 Rg l + 3 Kh3 Qh4 + ! ! 4 g x h4 g4 mate. 86. Syakhov-Blekhtsin, Leningrad, 1 962. 1 . . . R x c4! 2 b x c4 Nd4 3 B x c5 Re l + ! ! 4 Kg2 Rgl + ! ! White resigns. If 5 R x g l , then 5 . . . N x f3 6 K x f3 Qf6 + 7 Kg2 Qc6 + , and the bishop is also lost. 87. Furman-Batigin, Kalinin, 1 950. 1 . . . Bd3 ! 2 Q x d3 (if 2 R x d3, then 2 . . . Q x el + 3 Bfl Rb4 4 Re3 Qh4 5 Bg2 Rd4! 6 B x e4 Q x e4 7 Re2 Qg4 + 8 Rg2 Q x e4 + , or 2 Q x a4 Qf2 + 3 Khl Ng3 + 4 h x g3 R x el + ) 2 . . . Qf2 + 3 Kh l Q x e l + ! 4 R x e l Nf2 + White resigns. 88. Pilnik- Pachman, Stockholm, 1 952. 1 Nd5 ! c4 (the only move, since 2

Bc3! was threatened) 2 Be3 Qb2 3

Rb l Q x c2 4 R x b8,

and White won.

Test 12

Positions 89-96

Sixty minutes are allowed for this test, which is of similar difficulty to the previous one.

89

B

90

B

Test 12

25

92

w

93 B

�.;;. � g

- - '�L� �·,,,,,W, - · �,,,,,W,� " - II ,,,,,W, 1 m � - - � - lb..� � lb..� n . . - �,,� • - - �,,� �--� �� � � n - %,,,,) � • lb�� ;r, - � • ..:. ..�. - �

%

:,,, ,,,,:

�,.,.,,.,.%

::ri,.,.,,.,.:%:

� � � ,.,.,.,.,.;x::

;?, � � ,,.,.,,.�

94

w

$.

,,, 7,

�

� ,,,,�

Z'i'""',.,.%

�,,.,.,.,.,.,%

96

B

TYC-

,,,,,

. ..

27

Test 13

JOO w

99

w

101

B

- - �� �om� � l?f,1 -·- " �,,� II v,,, � �� � · i �· . � i - m 1 m �--,,,� l?f,1Ii v,,)� � � - �m ,,,,� II� - %�- a �,.,.,,,.� � ,,,, ,,,,, � m � • x m - %II �,,� ,.,,,� � ,.,,,. � - - �,.,.,.�g

102

- · - · -·m x m - ��·- ---�� i · - - -· - �L� - %.... � - - - � - ��- i'.' � o tr m � � ��,� �m� � jl m o - - m •x•

104

-

�,.,.,.,.,.::I.:

w

;

r.

103

w

. ..

ik,U

"

· �,� - �,� • i �m� m 1 m 1 - - - - - - . � ,�,,,-�, - - - - II �,.,.,, � � � �m� II - - �• - · • :1 �mm� - m

w

0 �,.,.,,.,.

• �� _ _ .._ _ �--" ! - - �..Ii ,,,,.� i �"" • · - E 1 E 1 m - - �,,, II� -- - - - � - "jl - � ,,,,� 11 �� 11 �m� "r� - - - �,.�,,,,� ;'9,,,,,,v,

..,,,,,,.,,,. ,, ,,/,

�

r,,,,,,v,

�

...�

r ,

v,

28

Interference

Solutions to Test 13 97. Book-Koponen, Helsinki, 1 96 1 . 1 e x f6! Q x e2 2 f7 + Kh8 3 B x g7 + ! ! K x g7 4 f x e8 = Q + Resigns. 98. M atulovic-Lengyel, Vrnjacka Banja, 1 966 (variation). 1 B x e5 ! ! R x e5 2 B x f7 + K x f7 3 R x d7 + ! Q x d7 4 N x e5 + , and White wins. The game in fact went 1 . . . Qc8 2 Bd4, when White remained a pawn up and went on to win. 1 Q x c8 + ! ! N x c8 2 R x c8 + Kh7 3 Rh8 + ! K x g6 4 R x h6 + Resigns. 1 00. Zhilinsky-Zhulanov, USSR, 1 958. 1 h4+ ! ! K x h4 2 Rh3 + Kg5 3 Rh5 + ! ! g x h5 4 Qf5 + Kh4 5 Q x h5 mate. 1 0 1 . Bruckner-Koch, Berlin, 1 9 52. 1 . . . Rf3 + ! ! 2 K x h4 Ne7! 3 g6 N x g6 + 4 Kg5 Rh6 ! ! White resigns. 1 02. Kofman-Sakketi, Corr., 1 948 (variation). 1 Re8 + ! Kd7 2 Re3 ! ! Qg7 3 R x d4 + ! Q x d4 4 Rd3! Q x d3 5 Ne5 + , and White wins. In the game Kofman could find no defence against 1 . . . Q x h3 + , and resigned. 1 03 . Taimanov-N.N., Riga, 1 964 (from a simultaneous display). 1 Bc4! Q x c4 2 R x g7 + ! Kh8 3 B x e5 ! Q x c2 4 Rf8 + ! ! R x f8 5 R x g6 + Resigns. 1 04. Veresov-Kukharev, Minsk, 1 959. 1 Qh6 + ! ! K x h6 2 Rh4+ Kg5 3 f4 + ! ! K x h4 4 g3 + Kh3 5 Bf l mate.

Test 14

Positions 105-1 1 2

A new theme : 'Interference'. You should not find the test too difficult. Solving time- 70 minutes.

105 w

106

B

29

Test 14

107

w

109

w

�--�

·- • - - ��""""� � ,,� • i �- "� ,,,,,� , _ _ � � - fl ""'� - ��� ,,,,,� m A fl � - fl ,,,,�, �- - - • �,,� n ;&i � �,,� -·• �,,, "� - �,,� �""� �-� - �- •

108 w

� � - Ji -·- • - - �- fl i i - - - m 1 m - ����� ,,,,,,)#, � - � "� - - �,,� �,, D� - - %,,.• �,,, ,,,.,.� - - mxm

110

�"""""%

112

i:r.""'""0

�,o,,)Z,

Z("""""X

�'"""";%:

� �,.,.,..,.,._J�

� � %,,,.,.,.,.;!7.

�/no:;;,;

�,.,,,. �

"

B

� � �...,.,.,.,.,.�

111 B

-·- � :,.� �-,, � �!&� fl m 1 m 1 �,,� " - ,,• ,,,,)#, • m � 1 m � m � m 1 m J. E · - �,,, � � �,,� "� n �,,, • �L� - �,,� "� ��-� � �� � �� � �,, �,,� �- ¥,� .m � - . . E L.J� ll �,,,, ...

: , , , ,., , , , ;

�

%'...,,,....�

""

x-,,,.,, ...�

:%-,.,.,,,.�

- ·- ·- • __.__ - m 1 � '", � i ' � �' - m 1 · - � - �,,, 0� 1 · - - - - - - -

�,,,,,�� fl

-

""

-

...�

-

-

-

-

- - JI ,,,,� - - __.__ - � - , - � �� •x• m �,,,,)#, - -· � � - II ,,,,,� - - - %.,,,.• ,,/�

B

-·- - - · �,,,,,�� - - • fl �,,,,,� fl � ll A- m i - 'W'0, � "% � - �0-,.,,,,.�� � �.. . , � - � - - -· -�m x m - - - -

-

. �,.,.,.,...%

z z,,,,,,.,,:x

�

,, ;

30

Interference

Solutions to Test 14 1 05. Kireyev-Mironov, Riga, 1 963. 1 Rh6 ! ! Q x h6 2 Nf7 + Kg8 3 N x h6 + g x h6 4 Qe6 + Resigns. 1 06. N. Zhuravlev-Kapanadze, Tbilisi, 1 977. 1 . . . R x b l 2 R x bl Bf5 ! ! and wins. 1 07. Augustin-Lane, Brno, 1 975. 1 Be8 ! Qf5 2 Re6 ! ! Resigns. 1 08 . Ruster-Olland, Corr., 1 968. 1 Nf8 ! ! Qf7 (if 1 . . .

Q xfB

or 1 . . .

R xfB, then 2 RgB + ) 2

Qf6 + ! Q x f6 3 Rg8 mate.

1 09. Cornflit-Hukel, Corr., 1 965. 1 Nf6! ! Q x b2 + (or 1 . . .

Q x g4 2 N x eB!! ) 2

Kh l Rg8 3 Qe4! Resigns.

1 1 0. Chakhoyan-Turkestanishvili, Tbilisi, 1 97 1 . 1 . . . Qd3 ! ! 2 Q x d3 e x d3 3 R b l B x g4 White resigns. 1 1 1 . Daskalov-Stancev, Varna, 1 968. mate, while at the same time White has to parry

1 . . . Qa3 ! ! 2 N x e6 (or

2 b x a3 B x a3

the threat of 2

2 . . . Bb4! ! 3 Q x b4 Q x a2 White resigns.

. . . Rb6 )

1 1 2. Kasperovich-Bukhman, M oscow, 1 977. 1 . . . Rg6 ! ! 2 B x g6 (in the game White resigned after 2

Rg2 Qe3 + 3 Kh4 Bg5 +) 2

. . . Qg l

3 B x f7 + Kh7!, and Black wins after 4 Bg6 + Kh6! or 4 Bg8 + Kh8!

Test 1 5

Positions 113-120

Sixty minutes are allowed for this test, which concludes the theme 'Interference'. Several of these examples may cause you to rack your brains.

113 w

·- m ,. ,,. ; � .t 11 �;� 1 �� • 1 �II E �,,,,r, �;,,,)] ""'� m � m 1 m 1 m �, , 1% " ��-� . l � y� �L� - - - - - - � � - - m �,,,� � � n - m :1 m - · �.....,, ..�

"

�

,,

: , ,- , , :

JU

w

- -·- m 1 m ,,,,,� j � I D � - - �" �,,� ""'� n D �,,,� �L� x m � ·- - - - - -·- - - - - - Can White save the game?

31

Test 15 116

w

117

w

• m .t.. m �- · • • - m 1 - �,,,,J� ¥, ,,,,, � 1 • % � �• m 1 m � �-----7. � " - �,,, �L� II� "� - � - � �,,, � �L,J. - �� %L.z • � � � n .,,)%, � m � - - m 11 m � jt m �X

118

- • �,,,,/� II� - m 1 m 1 � � • - �%,,,,,� �,,,,� - �• �- jl . �L� - - �·· �L� - � - m � 1 n .Z, ,) � � - �• ��///� �,., , � .t • �,,� - - - •

120

;;,,,,,,,%

B

,,,,,,,}»,

-

-

-

""'

�/////�

� ,

,

% ,, � ,

�,,,,,�

'ff,,,,/%,

-

� 7.

u !".': ,, � II �,,,� - jt m � II - - � � ""'� � � -� · - - � - - - m ""'� � 1 11 - -�- - - -·�,,� � 1 l?& �� � E - � ""'� �,,) � � - � - II � - �,,, D� - - - -· -

-

.

�

�"·"""'X

�.....,,.

;:::

,.,.

�

,., ,,)�

39

Test 1 9 147

w

�""""'%

� - • �,.,.,.,.,.,.� �. . � � � • ll• -·- m (I i II � � � �H� � ""'� ""'� ll II ""'� ""'� - - ""'� � � � - � - � -�- � - - )b..� . - - - � D �'il' � - u : , : - -·

148 w

,,,)%

,,,)%

�,,,,,Y,

�,,,.,.,x

;z

�

� ,.,..,.,.,.�

� "" , , , , ,,

149

150 B

w

151 B

�•J - · • J. �,,,,,, ·�,� � � E i L.,� m 1 m - - m 1 m � ji rl� - �O ,,,,� - � - �•� - �,,, D� - • �...,,,,� � ·� � - - �- ,.� �'� �� D W - - �,.,. �-,.,.� H �..,.,.. ji

- •� - "'l� r'� J. m • �, ,,J». i . �,,,,� ;z;. i - �/////� m 1 m m 1 m II ""'� �-� n ,,,,� � m � � m � �E..�� - - � - �--�,.,.,.,. �•n �L� - - m - mHm �,..,.,,.x

�,.,.,.,.,,

"'"' �

, ,,.,.,.,.,,.,.% z

152 w

· - - -- - · II II ��,,� �,,,� - m 1� �� �{""� � � i ��. · � - � " ""'� - ""'� ��- � - - - � - - n �,,� � � � a - �,,, D� D �,,� - m � x • � xm :,,,,,.,, , , ;

0,,,,J».

40

L ine- opening

Solutions to Test 1 9 1 45. Kholmov-Golz, Dresden, 1 956. 1 Q x f5 ! ! g x f5 2 Ne4 + Q x g3 3 N x f6 + Resigns

(3 . . . Kg7 4

Nh5 +).

1 46. Westerinen-Diesen, Las Vegas, 1 974. 1 N x e6 ! ! f x e6 2 f7 + Q x f7 (or 2 . . .

Kh8 3 Q x b4! ! ) 3 R x

f7, and White won. The game

concluded 3 . . . K x f7 4 Qf4+ Ke8 5 Q x b4 R x a2 6 Qb8 + Kd7 7 Qd6 + Kc8 8 Q x e6 + Kb8 9 Qb6+ Bb7 1 0 d4! Re2 1 1 Qd6 + Ka7 1 2 e 6 Bc8 1 3 Qc7 + , and Black resigned. 1 47. Nikolau-Iovanovic, Pernik, 1 972. 1 B x h6 ! ! g x h6 2 R x f6! Bg7 (or

2

...

Qg7 3

R x h6 + ! ) 3 R x f7 Resigns.

1 48. Szabo-Stahlberg, Leipzig, 1 960. 1 Bd4 ! ! N x d5 (or

I

. . .

e x d4 2

R xf4 ) 2 R x e5 ! N x c3

(3

Rh5! was threatened) 3 B x c3

Resigns. 1 49. Szabo-Hemasian, Varna, 1 962. 1 Ng 5 ! ! h x g5 2 f x g5 Q x fl + 3 R x fl N x e5 4 B x e6 + Resigns. 1 50. Peterson-Ortitz, Corr., 1 973. 1 . . . N x c2 + 2 Kfl Rd l + ! 3 B x d l Ng3 + ! 4 f x g3 Qe l mate. 1 5 1 . Vuckevic- Panteleyev, Sofia, 1 958. 1 . . . R x h2 + ! ! 2 K x h2 Qf2 + 3 Kh3 Rh8 + 4 Kg4 Qf4 mate. 1 52. Jakobsen- Peterson, Copenhagen, 1 968. 1 e7 + ! Kh8

(I

. . .

Kg7 is

answered in the same way) 2 B x e5 ! d x e5 3 Q x a8 + ! Q x a8 4

Rd8 Resigns.

Test 20

Positions 1 53-160

Solving time - 70 minutes.

153 B

154 B

41

Test 20

155

w

- --- �,,- � fl�� i �fl�� - �,,.,,,J2. �11 " �� . � � -� � jt � � �� � - D� - - � �,,, � !ii}, �D � D� a ,,,,� - �,M D� � - - �,, - - - -·

156

• · - - ··- J. - II i m . � � l � , - �,,,, � II �st E ��,,J - - �nm� i 11 - � ""'� i m %,, m,;, � - - - E �,,, a� � m � �,,, � a� � m �- - - kII....�. �nm�

158

- �,,,,,� ··. - ll J. m • m � ��� 1 m 11 ,,� � �% m �,�:;.;� ?!& fl ,,,�� �--J � �,,,� � � � � � ��� � � � - � - - � � - RKm � m x m�m R ... A

160

w

""'

""'

"'

,, ,, , ;

,,,,,

w

.

�

0-,.,,

'U

?}"",,,,'/X

w

,

B

,,,,

' r,.,,,

�

� ,,,,,,,

, , � 'U � ,,,JZ:

TYC-D

'ii'

• m J. m • m • 11 i i i � �� - - �� �,�

,,� � , - �� � - � ;� �; - - �,,.��,,,, ,��,,, x .

%"',,":%:'.

159

�

7.

�

'U

�

7.

�,,,,,,,?,

� ----Y.

,.,, ,, ,,.,x

�

,,,,,

;,,, ,.,,;

157

- ·- - II " '� , � II - � - 11 % , ,� ""'� � � II i � � D �L� -� m tt · - � - •.-

?:

x

B

·• ,. ...,. ,.,. ::;: , , ::::

�,;: �-

� 7.

-

�,.,,,)�

42

Line- opening

Solutions to Test 20 1 53. Kamishev-Estrin, Leningrad, 1 95 1 . 1 . . . Nfg3 + 2 Kg l Q x h2 + ! ! 3 K x h2 Rh8 + 4 B x h8 R x h8 + 5 Kg l Rh l mate. 1 54. A. Zaitsev-Gipslis, Moscow, 1 969. 1 . . . B x e4! 2 Qd l

(2 fx e4 f3! ) 2

. . . Bd3 ! ! 3 Q x d3 Qg2 + 4 Ke l Q x f2 + White resigns.

1 55. Petkevich-Mosionzhik, Riga, 1 964.

1 B x g5 ! ! f x g5 2 Q x g5 + Kh7 3 f6! ! Qg6 4 Bg8 + ! ! Resigns

...

(4

Q x g8 5 Qh5

mate).

1 56. Adorjan-Ostoj ic, Polanica Zdroj, 1 970. 1 B x h6! B x b4 2 B x g7 + ! K x g7 3 h6+ ! K x h6 4 g7 Rg8 5 Rg2! Resigns. 1 57. Berkkwist-Timman, Corr., 1 9 7 1 /72. 1 Nh5 ! ! g x h5 2 Ne6 ! ! f x e6 3 Rg5 + Kf7 4 Qg6 mate. 1 58. Sax-Ciocaltea, Vrnjacka Banj a, 1 974. 1 e6! B x e6 (on

1

...

N x e6

there follows

2

B x c3, when Black is defenceless) 2 B x d4

c x d4 3 B x f7 Q x f7 4 R x f7, and White won. The finish was 4 . . . B x f7 5 Qf4 B x a2 6 Q x d4, and Black resigned. 1 59. Grigorian-Balashov, Leningrad, 1 974. 1 . . . N x e4! 2 f x e4 Q x g4 + 3 Rg2 (or

3 Kh2 Qh3 + 4 Kgl Rfl

mate) 3 . . . Rfl + 4 Kh2

Qh3 mate. 1 60. Bublik-Kadaner, Izhevsk, 1 974. 1 . . . Q x a2 + ! ! 2 R x a2 R x a2 3 R x d4 (if 3 Kcl , then 3 . . . Ral + 4 Kd2 R8a2 + 5 Kel Nf3 + 6 Kfl R x dl + 7 Kg2 Nh4 + 8 Kh3 Rhl + 9 Kg4 R xf2, with inevitable mate) 3 . . . Ra l + 4 Kc2 R8a2 + White resigns (5 Kd3 Rdl mate).

Test 21

Positions 161-168

The concluding test on the theme of 'Line-opening'. Solving time- 75 minutes.

161 w

--�-� - - �• 1 • 1 - �� �- · · . , �,,,,� . ' i %iD � � i �,,,,,< � O E ,,,,� "'"'� n D � �m� D m �m� � � �L� - - - -· - - �•� - - - !! -

-

�

'///////,,;/,

�No/�

,

�o,,.-�

162 B

· - - · - �,.,.� ,.,.�� �� _� , _ - �m ,,,,,� � � �,,,,,� • �fl - fl %,,,,,J, ,,,,,� ��,,,,,� • m � ..... � fl i - � - - - - - � � r� �,,� m �AB � D "'"'� �m� • --- mx �...,.,.,.,,.,.3'.

,,,,,

'1