The theme of the puzzle is Frequency-Hopping Spread Spectrum, found under FHSS in Chambers. This is a technique for reducing interference in radio communications invented by actress Hedy Lamarr and composer George Antheil, patented by them in 1942 and still in use today. The technique involves scrambling a message by transmitting it in pieces using an apparently random sequence of different radio frequencies agreed in advance by the participants. It was inspired by the synchronised pianos in Antheil’s Ballet Mécanique.
Five clues, in which an f “hops” before solving, led to White Cargo and Samson and Delilah, two of Lamarr’s films. Misprint corrections spelt out “sort columns by frequency”, Ecstasy (an early Lamarr film) and “bit of screen crumpet” (which could be interpreted as S+CRUMPET or “spread” SPECTRUM).
The tune below the grid was the upper voice of the subject from Karlheinz Stockhausen’s serial piece Mantra, for two pianos, some electronic equipment and other instruments. The initial grid (shown here) needed its columns sorted by the frequency (pitch) of the notes in the tune, so that HEDWIG KIESLER (Lamarr’s real name) could be completed in the second row. Then erasing one line changed an E (Ecstasy) to F (frequency), completing FREQUENCY HOPPING SPREAD SPECTRUM in rows 5-8. The puzzle’s title cryptically indicates Algiers, Lamarr’s first US film. The puzzle was published on the 99th anniversary of her birth, 9 November 1914 (the editors have seen a photograph of Hedy Lamarr’s passport showing that date).
Conventions: * = anagram, < = reversal
No | Misprint/“hop” | Answer | Explanation |
---|---|---|---|
Across | |||
1 | (S)ound | EUPEPSY | homophone of (YOU + PEPSI) |
6 | c(O)nical | SHAWM | WHAM’S * |
12 | (R)ice | GROWER | ROW in GER |
13 | (T)avern | BARMAID | BARM(y) + AID |
15 | (C)hopped | EATEN | BEATEN − B(uzz) |
16 | n(O)t | INEARTH | (IN THE + (p)RA(m)) * |
18 | MCMX(L)VII | UNECE | UNE + CE |
19 | f(U)n | OPIE | O’ + PIE |
21 | (M)ining | IPOH | HOPI < |
23 | A(N)gus’s | PENDS | P + ENDS |
24 | (S)ea | SEI | (IE + S) < |
26 | (B)ad | DARNS | RAD < + N/S |
29 | appl(Y) | PCAS | PCS around A |
33 | (F)lower | TEES | homophone of TEASE |
36 | c(R)imps | CREPY | PERCY * |
39 | fu(E)l | SEA COAL | CASELOAD * − D |
40 | (Q)uality | WOOZY | WOO + Z + Y |
41 | st(U)ck | AGROUND | A + G + ROUND |
42 | (f)ending → bee-f | SAMSON | SAM(i) + SON |
43 | tre(E)s | NAGAPIES | NAGA + PIES |
44 | mea(N) | LEAST | LET around A’S |
45 | s(C)um | DROSS | D. ROSS; ref. Diana Ross |
46 | (f)lake → f-lips | DELILAH | (HELD + A + L + I’) * |
Down | |||
1 | (Y)ard | EDGER | (h)EDGER(ow) |
2 | (E)ggs | PROTEIN | ROTE in PIN |
3 | spa(C)es | PLENUMS | EN(s) in PLUMS |
4 | hor(S)es’ | SIRINGS | SINGS around IR |
5 | (T)urned | SÉANCE | (A SCENE) * |
6 | w(A)ll | SKREEN | KERNES * |
7 | (S)enses | AWARE | ((cam)ERA WA(s)) < |
8 | Monk(f)ish → f-risky | WHITE | WITH * + E |
9 | Brin(Y) | MED | 2 meanings |
10 | (B)orn | IRAQ | AIR * + Q |
11 | B(I)ggar’s | SWEYED | S + W + EYED |
13 | (T)own | BIELEFELD | (FILLE DE CHAMBRE) * − CHARM * |
14 | al(O)ha | MAUI | M(aybe) A(loha) U(ttered) I(nvitingly) |
17 | (F)ive | HEH | HE + H(ousing) |
20 | light-sen(S)ing | PEC | CEP < |
22 | (C)rack | ONE | NEO- with letters “cycled” |
25 | (R)oad | IMPASSE | (MISSHAPE − H) * |
26 | lin(E)s | DRYWALL | (DR + W + ALL) around Y |
27 | Visibl(E) | AT HOME | HOT * in ÂME |
28 | (N)o | REPOSAL | POS in REAL |
29 | Dan(C)e’s | PAS | PARADISO − (RADI, O) |
30 | d(R)y | SECO | S + ECO- |
31 | abo(U)t | SCOUPS | SUPS around CO |
32 | (M)use | URANIA | UNIT − NIT + RAN + I + A |
34 | (P)une | REGAR | RAGER < |
35 | scar(f) → f-other | CARGO | (s)CAR GO(lfer) |
37 | b(E)asts | DZOS | S(n)O(o)Z(e)D < |
38 | ki(T) | SYNTH | homophone of SIN + TH’; ref. song and album by Kraftwerk |
41 | (f)und → le-f-t | AND | LAND − L |