Accepted guess Not a possible answer B tier for first-turn info

COPEN

COPEN is accepted as a guess but is not on the solver's possible-answer list.

As an opener, it rules out about 93.8% of possible answers.

Meaning and pronunciation

Verb

To cowrite.

Alternative forms: co-pen

Source: Wiktionary contributors · CC BY-SA 4.0. Corrections.

Wordle status

A word can be a playable guess without being a possible answer.

Playable guess

Yes

Included in the Wordle guess list used by our tools.

Possible answer

No

The solver does not currently treat this as a possible answer.

Past Wordle answer

Not used yet

No past answer date found.

The possible-answer list is the solver's current list and may change when Wordle adds new answers.

How COPEN performs as a guess

Wordle accepts COPEN as a guess, but the solver does not list it as a possible answer.

Played as an opener, it lands at least one colored tile in 84.8% of games, misses completely in 15.2%, and leaves about 148 possible answers on average.

In the previous complete opener benchmark, it ranks #549 of 14,855 openers, averaging 3.59 guesses in games solved within six turns.

Try your feedback pattern

Tap the tiles to match your feedback, then see the ranked follow-up guesses.

All gray? Tap a tile to cycle gray → yellow → green.

First-turn measures

All four describe COPEN used as an opening guess. Entropy is the same idea as “avg ruled out” on a log scale: a higher number means the guess splits the possible answers into more, smaller groups.

4.99 Entropy (bits)
148 Avg remaining
0.0% Exact match
93.8% Avg ruled out
Higher first-turn entropy than about 83% of evaluated openers
0.96 bits below the highest measured first-turn entropy (~5.95 bits)

As an opening guess: previous benchmark

How COPEN performed in the previous complete opener benchmark, against its captured answer snapshot. These research figures are separate from today's solver recommendations. See the data page for the method.

3.59 Avg guesses
99.96% Solved within six
0.66 Spread of game lengths
#549 Rank among openers
Opening with COPEN left 1 of the snapshot's answers unsolved after six guesses. A spread of 0.66 means those games clustered within about 0.66 of a guess of the 3.59 average. It ranks #549 of 14,855 openers by average guesses in games solved within six.
1 guess
0
2 guesses
59
3 guesses
1,010
4 guesses
1,139
5 guesses
137
6 guesses
8
Top-ranked in the current bounded policy screen: SLANT. The policy minimizes misses within six first, then average guesses among wins (3.46 for the leader). Compare the ranking measures

Composition

5/5 unique
2 vowels
Common:
ENO

Feedback chances

Any hit (G/Y)
85%
Green tile
35%
All gray
15%

Feedback distribution

COPEN can come back 106 different ways. These are the most likely, and how many of the possible answers give each one:

362 answers
341 answers
136 answers
135 answers
133 answers
105 answers
73 answers
72 answers
68 answers
52 answers
51 answers
49 answers
45 answers
34 answers
32 answers
31 answers
29 answers
29 answers
29 answers
27 answers
27 answers
24 answers
21 answers
21 answers
20 answers
19 answers
19 answers
17 answers
16 answers
16 answers

Letter-value totals

Base letter-value totals for COPEN; these do not show whether either game accepts the word.

Scrabble

C3O1P3E1N1
Total: 9 points

Words With Friends

Total: 12 points

Scores shown are base values without double/triple letter or word bonuses.

Strategy after playing COPEN

What the solver recommends next for each way the board can respond to COPEN.

Quick reference

Largest feedback groups after playing COPEN:

15% chance
Suggested:
SLART
14% chance
Suggested:
SLART
6% chance
Suggested:
GAUNT

Follow-ups for common patterns

Ranked follow-up guesses for the 10 most common feedback patterns.

15.2%
SLART 6.07 bits
14.4%
SLART 5.80 bits
5.7%
GAUNT 5.22 bits
5.7%
STAIR 4.67 bits
5.6%
ABORT 5.20 bits
4.4%
SLART 4.57 bits
3.1%
SHALT 4.79 bits
3.0%
SLART 5.21 bits
2.9%
ANISE 4.52 bits
2.2%
STRAE 4.85 bits

Research on COPEN

Game-tree analysis and word research for COPEN, with an explanation for each figure.

Optimal play

Opening with COPEN, a proven-optimal strategy averages 3.62 guesses and ranks #683 of 14,855 legal openers. The best proven opener, TARSE, averages 3.55.

In hard mode it averages 3.76 guesses at best and is rank #543 of the 7,453 openers that can still guarantee a solve within six guesses.

Our six-turn simulation says 3.59, at or below the proven-optimal 3.62, because the two figures score different answer lists.

These figures come from exhaustive game-tree search and are exact for the NYT lists of July 2023 (3,158 answers). They do not use the site's working answer pool.

How it sounds

Two syllables, stress on the first syllable Say it KOHPUHN.

Familiarity and learning

Frequency
COPEN sits in the rare band of the wordfreq scale, appearing less than once per million words of written English; the band marks it as a word few players will have met in print.

Sources: Optimal-play values: Alex Selby's exhaustive Wordle analysis (MIT); Pronunciation: CMU Pronouncing Dictionary (BSD); Word frequency: wordfreq (data CC BY-SA 4.0).