chess-The Oxford Companion to Chess - First Edition by David Hooper & Kenneth Whyld

84 C\ITNDER BOARD
onplele if yet moiher phase showed the scquence
A problem by the soviet composer Rafacl
Moi$ycvich Kotna, (1909- ).6r, 1934. Afier
the key 1 Rn7 (threatenins 2 Re7) thee squares in
the black kinS\ 6eld (e7, a, r) are twice guarded
by three shile line-pieces (R. R,B). Black may @t
ofitheaaactofone ofthesepieces and White must
take ue nol to inrerfere with the acdod oI fte
other tvo. Three variaions of the problen shos
DUALAvo,DANcE (the JAVATHEME). and the avoided
duals in one va.iatio. are the nating moves in ihe
orher two. The cy.lic pauern nay be synbolized
tnu:A (notB.C). B (norC.A). andC(notA,B).
1...Ng7 2 NxgT (2 Nl6? 2Nd6?)
1...Nt4 2 NI6 (2 Nd6? 2Ng7?)
1...Nd 2 Nd6 (2 Ng7? 2 Nl6).
CYLINDER BOAXIT, a rectangular plane board
that is cuned so lhal two opposite edges adjoin onc
anothe. to lorn a cylinder; nen nay be moved
freely acros tnc joined edges. When the nomal
board is used the joining of lhe a- and h liles
produces a vertical cylinder, thejoining ofthe 66t
and eignlh rankr a hornontal cylinder. RoUND
.EEss, played on thc pl ane prc iection ot a cylinder
board, was known at least as early as the 101h
ccn1ury, The 8 x 8 cylinder boa.d, inlrodu.ed in
the Chess Awteu\ AnE. l9Z), was used for play i.
a bumament at San Francisco io 192,1, and oos y
Ior problens subsequently.
ruww'%t&
w w wB%&
*'h%*
ww%w
&umw
w "% w@w
r&w%w ww%liw
A problen by INDLR, Prage. P..rs., 192a. The
onision of framina lines at the sides of the
diagram indicates a vertical cyli.der board. After
rhe key, 1 KI2, ftere are two vanations:
1.. Kc8 2Bh2l(d8 3Od1
1...Ka8 2Bd2Kh8 3Qhl.
CZECII DEmNCE, 38, a statrdard line in the sLA!
DEFENCE sometimes called the open sla! Defen e.
CZECE VAXIATION, 133, line similar to the
rmcrcE vAfuroN, 22, of rh
CZERNIAK (pron, Chem yak), MOSHE 0910
),Inrernaiional M6rer (19s2). Born in Poland,
he enigraled 10 Palestine around 1934, won the
fst national championship {1936), played for his
adoptedcotrntry in thc Warsaw Olympiad of1935
and agatu in lhe Buenos Aires Olympiad of1939.
during which the Second World War begm. He
stayed i. Argentina until 1950 and then seuled in
Israel, playing io.lhal con.try in ninc @nsecutive
Olynpiads lron 1952 to 1968. and sinning the
natiooalchampionship lor the second tine in 1955.
In Arge.tina. Europc, and Israel he cobpeted
regularly in lournamentsj with moderale results.
Noted ior his renacity, he o.ce played a toumaoent
game that lasted tor 191 moves, and ar two
Olympiads w6 rhe lasl player !o 6nish his gane.
Czerniakt p.ofesion was journalism. reporting
chess attairsi h€ also w.ote several books on the