The grid with all of its letters is shown here. The extra trios of words and numbers (with punctuation) in the clues with triangular numbers were “3 like plane figures: group of 64 east of two little points, tango in corner, group of 16 in centre; tool, grape and vetch”. The first parts described three triangular regions to be erased: 64 cells to the right of the cell containing the umlaut (“two dots”) that was required in HÄLLEFLINTA and LÄNDLER; the T in the bottom-left corner; and 16 cells in the centre of the remaining block of letters, leaving a three-sided annulus with three blank cells on its perimeter. The last extra items were definitions of HOE, UVA and ERS, whose letters respectively marked the corners of the three areas to shade, depicting the optical illusion of an “impossible” three-dimensional triangle. The blank cells were filled to show the names PENROSE, ESCHER and REUTERSVÄRD around the perimeter. The graphic artists Oscar Reutersvärd (Swedish) and M. C. Escher (Dutch) both drew many impossible figures. Reutersvärd devised this triangle in 1934. Inspired by the works of Escher, the British mathematician Sir Roger Penrose rediscovered and popularised it in the 1950s and it is often called the Penrose triangle.
Conventions: * = anagram, < = reversal
No | Extra Items | Answer | Explanation |
---|---|---|---|
1 | 3 like plane | HÄLLEFLINTA | homophone of HELL + (IN E FLAT) * |
2 | LÄNDLER | LÄNDER around (flora)L | |
3 | figures: group of | INTANGIBLE | (TEN + B + NILGAI) * |
4 | ELTON | (NOT + LET − T) < | |
5 | REDS | 2 meanings; ref. snooker | |
6 | 64 east of | VILLAGE IDIOT | (LIVE DIGITAL + (radi)O) * |
7 | ORA | FEDORA − FED | |
8 | TIDE | (brigh)T IDE(a) | |
9 | RADII | RAD + II | |
10 | two little points, | SARDANA | DANA after SAR |
11 | GETA | GET-AT-ABLE − TABLE | |
12 | FADE-IN | FAN around DEI | |
13 | BAR-B-QS | BARB + QS | |
13 | BARF | BAR + F | |
14 | REAROSE | REAR + ROSE with shared R | |
15 | tango in corner, | MOR | M + OR |
16 | KAFILA | ((Unusu)AL IF A K(idnapper)) < | |
16 | KAPIL DEV | PAK < + DEVIL * | |
17 | BEARDIES | BEAR DIES; ref. Paddington Bear | |
17 | BEFFANA | BE + NAFF < + A | |
18 | PECKSNIFFIAN | (PECK + IAN) around SNIFF | |
19 | DALETH | DALE(k) + TH | |
20 | TACE | (withou)T A CE(nt) | |
21 | group of 16 | URBAN | UR- + BAN |
22 | QUIDDITATIVE | QUID + TIDIVATE * | |
23 | AS LARGE AS LIFE | (AS LARGE AS LIFE) * around US = A + S + SAUSAGE FILLER | |
24 | LATECOMER | (ME TO CLEAR) * | |
25 | LOOK SHARP | (SHARK POOL) * | |
26 | GLIAL | GLOBAL with I for OB | |
27 | ANTLIAE | LI in ANTAE | |
28 | in centre; tool, | ANTEFIXA | ANT + (AXE IF) * |
29 | LABOR | (A + BO) in (L + R) | |
29 | LAUND | LA + UND | |
30 | ROSS | ROSSINI − IN − I | |
31 | TURNED UP | T’ + UNDER * + UP | |
31 | TURPETH | PE in TRUTH * | |
32 | PONE | PHONE − H | |
33 | RAITA | RAIT + A | |
34 | SOLITO | SOLO around (I + (ba)T) | |
35 | EVENS | E + VEN’S | |
36 | grape and vetch | EVER SO | O after SERVE * |