5 FiveLetterWords
Accepted guess Not a possible answer F tier opener

CUSUM

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

As an opener, it rules out about 80.6% of possible answers.

Open Solver with CUSUM Open Word Finder

Meaning and pronunciation

Noun

cumulative sum control chart: a sequential analysis technique typically used for monitoring change detection

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 CUSUM performs as a guess

Wordle accepts CUSUM 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 60.2% of games, misses completely in 39.8%, and leaves about 457 possible answers on average.

In the previous complete v5 benchmark, it ranks #12,241 of 14,855 openers, averaging 3.82 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.

Useful pattern pages

If you only know part of the word, start with one of these matching patterns.

C___M C in the 1st position and M in the 5th position C__U_ C in the 1st position and U in the 4th position _U__M U in the 2nd position and M in the 5th position

Try next

ARIEL TIARE RAILE TRONE TALER SLANT
Words starting with C Words ending with M

First-turn measures

3.50 Entropy (bits)
457 Avg remaining
0.0% Exact match
80.6% Avg ruled out
Higher first-turn entropy than about 7% of evaluated openers
2.45 bits below the highest measured first-turn entropy (~5.95 bits)

As an opener: v5 benchmark

How CUSUM 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.

3.82 Avg guesses
99.9% Win rate
0.70 Volatility
#12,241 v5 opener rank
In the complete v5 snapshot, CUSUM ranks #12,241 of 14,855 openers by average guesses in games solved within six.
1 guess
0
2 guesses
31
3 guesses
713
4 guesses
1,283
5 guesses
302
6 guesses
22
Top-ranked in the current bounded policy screen: SLANT. The policy minimizes misses within six first, then average guesses among wins (3.45 for the leader). Compare the ranking measures

Composition

4/5 unique
2 vowels
Common:
SU

Feedback chances

Any hit (G/Y)
60%
Green tile
23%
All gray
40%

Feedback distribution

63 possible patterns. Top outcomes:

939
339
137
136
126
91
90
52
45
39
30
29
22
20
20
20
18
16
16
16
15
14
13
10
8
7
6
6
6
5

Quick reference

Largest feedback groups after playing CUSUM:

40% chance
Suggested:
ARIEL
14% chance
Suggested:
TIARE
6% chance
Suggested:
RAILE

Follow-ups for common patterns

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

39.8% →
ARIEL 6.16 bits
14.4% →
TIARE 5.61 bits
5.8% →
RAILE 5.37 bits
5.8% →
TIARE 5.44 bits
5.3% →
RAILE 5.28 bits
3.9% →
TRONE 5.15 bits
3.8% →
TALER 4.64 bits
2.2% →
TALER 4.55 bits
1.9% →
SLANT 4.34 bits
1.7% →
PLORE 4.35 bits

Letter-value totals

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

Scrabble

C3U1S1U1M3
Total: 9 points

Words With Friends

Total: 13 points

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