The quotation was “the three fundamental Rules of Robotics” from “Runaround by I. Asimov” (given by grid misprints). Clues’ treated letters gave the quotation with ARITHMETIC for ROBOTICS (indicated by the puzzle’s title as ROB+OTIC+S). Inserting, deleting and duplicating letters in clues corresponded more or less to addition, subtraction and multiplication, respectively. Each double clue used two of the operations and applying the other to its answers gave the grid entry. Eg, 1ac had T added and H subtracted, so corresponding letters of FRUITION and GREEN BAN were multiplied (F×G = 6×7 = 42 = P, etc).
Conventions: * = anagram, < = reversal
No | Modified word [type] | Answer [grid misprint] | Explanation |
---|---|---|---|
Across | |||
1 | [+] bus-T | FRUITION | (IF I RUN TO) * |
[−] ec(H)o | GREEN BAN | GREEN + B + A + N | |
6 | SOFA [R] | S + OF + A | |
10 | SOPPIEST [U] | POPSIES * + ’T | |
11 | [−] t(E)am | AMTRAK | TAM * + RAKI − I’ |
[×] taTTers | TAOIST | STATIO(n) * | |
12 | PAILS [N] | PILS around A | |
13 | [−] c(H)ant | HAYLOFT | HAY + LOFT |
[×] baRRed | SUFFECT | SUFFE(r) + CT | |
15 | PISÉ [A] | PIE around S(onny) | |
16 | SECTION [R] | NOTICES * | |
17 | [+] E-yes | VISUAL | 2 meanings |
[×] trEEs | DHOTIS | DH + O + TIS | |
22 | HEREIN [O] | (w)HERE I N(eed) | |
23 | [−] (F)lower | GLUMMER | G + LUMME + R |
[+] ag-U-ed | FASCIAS | F + CASSIA * | |
24 | [×] caNNed | WYTE | (TWENTY − NT) * |
[+] type-D | DEEK | KE(y)ED < | |
27 | THOLING [U] | T + HOLING | |
29 | [+] A-ye | LASSI | L + ASS + I |
[−] (M)aids | HELPS | 2 meanings | |
30 | HEALEY [N] | ALE in HEY | |
31 | [×] rEE | ENDORSES | (S(alford) + DON REE) * + S |
[+] tow-N | WICKEDLY | WICK + ELY around D | |
32 | [×] paTTer’s | JAWS | JAW’S |
[−] s(A)ic | THUS | SHUT * | |
33 | SERENATE [D] | GENERATES * − G | |
Down | |||
1 | [×] fiLLe | DRIB | BIRD < |
[−] wa(R)n | LILY | LI(ke)LY | |
2 | ARIES [B] | IS/ARE * | |
3 | TOTTERS [Y] | TROTTERS − R; ref. Only Fools and Horses | |
4 | OPENED [I] | PEN in OED | |
5 | NIPS [A] | NIPPERS − PER | |
6 | [−] b(U)y | ZOONOMY | ON in ZOOM + Y |
[×] fiLLing | SPLEENS | (P in (S + L)) + SNEE < | |
7 | [+] b-E-ar | HANJAR | HAN + JAR |
[×] amiSS | SHERRY | ERR in SHY | |
8 | ABSONANT [S] | ABS + ON + ANT | |
9 | ENVIABLE [I] | EN + VIABLE | |
14 | [×] lOOse | EFFETELY | (FEY FLEET) * |
[−] (F)undies | HINDUISE | (H + I + UNDIES) * | |
15 | [−] e(A)rring | BRAVURAS | AV in BURSAR * |
[+] c-R-ooked | UNEVENER | UNE + NEVER * | |
18 | ADMIRAL [M] | MIR after AD + A + L | |
19 | [+] I-ce | OFFCUTS | OFF + CUT + S |
[×] fluTTer | HARN-PAN | (APHRA + (A)NN) * | |
20 | RITTER [O] | RIT + TER- | |
21 | [−] (H)airline | PANAMA | PAN AM + A |
[+] tre-M-bling | REGIME | ÉMIGRÉ * | |
25 | [×] commandEEr | PRESS | 2 meanings |
[+] weigh-T | VISOR | VIS + OR | |
26 | [+] sol-I-d | CONE | C + ONE |
[−] (C)harmed | KADI | (A KID) * | |
28 | GYTE [V] | 2 meanings; (din)GY TE(nement) |