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

IMBOS

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

As an opener, it rules out about 89.2% of possible answers.

Meaning and pronunciation

Noun

plural of imbo

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 IMBOS performs as a guess

Wordle accepts IMBOS 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 76.8% of games, misses completely in 23.2%, and leaves about 256 possible answers on average.

In the previous complete opener benchmark, it ranks #7,841 of 14,855 openers, averaging 3.72 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 IMBOS 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.

4.07 Entropy (bits)
256 Avg remaining
0.0% Exact match
89.2% Avg ruled out
Higher first-turn entropy than about 26% of evaluated openers
1.88 bits below the highest measured first-turn entropy (~5.95 bits)

As an opening guess: previous benchmark

How IMBOS 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.

3.72 Avg guesses
99.96% Solved within six
0.68 Spread of game lengths
#7,841 Rank among openers
Opening with IMBOS left 1 of the snapshot's answers unsolved after six guesses. A spread of 0.68 means those games clustered within about 0.68 of a guess of the 3.72 average. It ranks #7,841 of 14,855 openers by average guesses in games solved within six.
1 guess
0
2 guesses
48
3 guesses
821
4 guesses
1,241
5 guesses
233
6 guesses
10
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:
IOS

Feedback chances

Any hit (G/Y)
77%
Green tile
12%
All gray
23%

Feedback distribution

IMBOS can come back 76 different ways. These are the most likely, and how many of the possible answers give each one:

551 answers
325 answers
276 answers
270 answers
107 answers
96 answers
91 answers
80 answers
56 answers
46 answers
41 answers
40 answers
37 answers
32 answers
22 answers
21 answers
20 answers
20 answers
17 answers
16 answers
13 answers
13 answers
13 answers
10 answers
10 answers
10 answers
8 answers
8 answers
8 answers
7 answers

Letter-value totals

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

Scrabble

I1M3B3O1S1
Total: 9 points

Words With Friends

Total: 11 points

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

Strategy after playing IMBOS

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

Quick reference

Largest feedback groups after playing IMBOS:

23% chance
Suggested:
CARLE
14% chance
Suggested:
TRINE
12% chance
Suggested:
STALE

Follow-ups for common patterns

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

23.2%
CARLE 6.19 bits
13.7%
TRINE 5.43 bits
11.6%
STALE 5.66 bits
11.4%
TRACE 5.28 bits
4.5%
STILE 4.63 bits
4.0%
MARLE 5.15 bits
3.8%
RONTE 4.71 bits
3.4%
CARLE 5.20 bits
2.4%
TALER 4.85 bits
1.9%
LATER 4.23 bits

Research on IMBOS

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

Optimal play

Opening with IMBOS, a proven-optimal strategy averages 3.77 guesses and ranks #9,198 of 14,855 legal openers. The best proven opener, TARSE, averages 3.55.

In hard mode it averages 3.86 guesses at best and is rank #3,182 of the 7,453 openers that can still guarantee a solve within six guesses.

Our six-turn simulation says 3.72, at or below the proven-optimal 3.77, 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 IHMBOHS. Estimated pronunciation

This pronunciation is machine-estimated, not taken from a pronunciation dictionary.

Sources: Optimal-play values: Alex Selby's exhaustive Wordle analysis (MIT); Pronunciation: CMU Pronouncing Dictionary (BSD), with machine estimates from the g2p_en model.