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

246 PERLIS
PDRIIS, JULIUS (1880 1913), Vienncse player
ol Ru$ian ongin. lawter, Perlis first camc inro
promi.ence when he took ninth plae anong 36
competiror. ar Onend 1906, a tournJmenr orga
nized lor rhe purn.se ol riodrnc neq ralenr He
played in strong tournamcnls a,Vienna 1908, St
Perersburg 1909, a.d Carlsbad 1911, scoring
modestly Still inproving, he achieved his best
resuli at San Sebastidn 1912, about caregory 13.
when he cane fifth afto R@N
SSELMANN, and rARescH anead of INss^LL.
DURAS. scsLEcsER, and urcHMANN. Perlis dever
reached hisplime. Akeenmountaineer, he setour.
atone for an Alpine climb on a nisty day and Nas
found dead two days later.
PERPETUAI CflECK! a spccial case oI draw by
repetition. A Player continues ro give check
(usually bccause he Nould otherwise lose). shich
nust eventually lead io a tnree lold repedtion of
Positionallhoughadrawisoften aCreed betorethis
ArekhintsLasker Exhibnion gane sr pete6bu.g,
Marh 1914 Sorch Game
1e,1c5 2NflN.6 3d4exd4 4Nxd4Nr6 5NdBb4 6
Nxc6bxc6 7Bd:ld5 3crd5 cxd5 90000 10ag5Be6
z% ffi 7H@
7& ru "'*i"t&
% '&a
% %*tl%
% "r,&
W* ffiA-W
tw.t%
ru%ru
In a level posnion ^E(ENE
mates a conbinalion virh rhe
intcnlion of forcing perperual chccli he was larniied to
hn 6d neerine
Champion: 13 Bxh6 gxl6 14 Rre6;e6 15 OSI+ KhS
16 Qg6, and popcttr"l check fono*s alr( 16 . Qe3 l7
oxn6+ Kg3 13 Qg5+ Kh3 19 Qh6+
Lasker arekhue sr Perenbnrg lst4 ccnre counier
In lhe sccond meering beNeen thsc nanes 6xFR
nount a posertul atrack bur Alekhine evcs lhs sme by
an ing.nious connteraxack .h leads ro perpetual .hcck.
1c4d5 2dxdsNl6 3d4Nx,l5,lNi3!g1 5c4Nt6 6
Nc3e5 Tdcid,l 3Ne4Nbd7 9Qx,l4Qe7 10ab5Nc6
11Br6bxc6 120.0BiI3 r3gr6Gt!0 14Oa4NB5 15
Kg2Oc6 16Qxa7 Of5 l7Qa3+Kd7 rsRdl+Ke6 19
Qxd3 Oxt3+ 20Kg1Be7 2l Qd4QE4+ 22KhrQB+
23 KslQg4+ 24 KhI QA+ dnwn.
PERPE'I-I'AI RXTROGRESSION. A iETO.
atralytical scries of ilegal positions: noves can be
retacted i. perpctuity, butnone leadsback to rhe
A%:* W, %
7&
t&, w
t%&,^w,
&ww
w%w
Thc pioneer problem by the Gernan @mposer
Wollgang Hundsdorier (1879 1951), Mnn hehet
Npu?src Nathri.htcn 1S08. Bla.k\ llsl movc Nas
Pc7 c5 and the pre.eding move by White 1 .
Rc6-b6. Tbe solution begitu 1 bxc6 ep B!b6 2
Oe5 dxe5 3 B&5. The solver is requned to
discover by neans of RnrRocMD. ANrrs6 why
Black\ last oovc must have beeo 1 . . . Pc7-c5.
Whire\ a-andh-pawns havenadeode and two
captures respectively. He has pronoled his lpaw.
(on f8) and his h-pawn. Six ofhis nen havc been
capturedbytheblackpaN.satb,landa2. Hisother
missingman*as captured on81 by Black\h-pawn
$hich aas then pronoted 10 a bishop. Blach s last
move cannot ha,c been madc wirh any of his
boitled-up pieces nor with his d'pawn which sas
moved earlier to rele a se his ligh t bishop: therefo.e ,
he has iust moved his c-pawn.
The loltowing rctro-variations (retraded moves
i. backward ordeo show why Black's c-pasn
cannor have been noved iron c6: I .c6 c5 2
Bc7-b3Bb8-a7 3Bd8-c7.andnow3...c7-c6
would leave White'sdarkbishop illegaUy placed, 3
.. . Bc? b8 would ieave White in EnosrdEurE
(i.e. h.ving no lastnove), vhile 3. . .
Oe7-a8or3. ., Ba7-bScouldlcadto tne endlcss
shuffling ol the dark bishops and the black queen in
their little cage: i.e. perpelual retroCression.
PETKOV, PETKO ANDONOV (1942 ),
Bulgaria. conposer, I.ternational Masler for
ches Conpositions (1977). He is able to compose
No andmEE MoERs othigh quality but is betrer
knosnforproblemsolalesonhodoxkind.having
bee. especiaUy successtul with SELFMATES.
PETROFF, ALEXANDER DMIIRYEVICH
0794 1867), rhe best Ru$ian pl.yer ol his rine.
He learned the hoves wben he $q 4 yeas old,
inproved his game at St Pelesburg where be lived
fron the age o110, and became the best player of
the city belore he was 20. His matemal grandfathe.,Sokolov,
asenator, usedbisinfluence to gei
hn gnndson on the Comnission of Requ.sts.
which exanined all peiitions to the Tsari a.d in
1840, at the invitation ol Field Mashal Prine
Pasheyich ol Poland, Pe1rcff we.t to Wa$a* as
Under Secretary oI State. Pekoff won matches