LinkedIn Pinpoint #890 Hints & Answer: A+ & B-
LinkedIn Pinpoint #890 for Wednesday, October 7, 2026 starts with “A+” and “B-”. Explore the clues below, then reveal the category and how each clue connects.
Automated explanation · not human reviewed ·
Original game: LinkedIn Pinpoint. Our explanations are independently written; this site is not affiliated with LinkedIn or Microsoft.
Latest edition: Looking for the current puzzle instead? See today's LinkedIn Pinpoint answer →
Reveal answer & analysis
The clues list letter-and-sign combinations that match the standard ABO and Rh designations used for human blood typing.
5 Clues
- Clue 1A+
- Clue 2B-
- Clue 3AB+
- Clue 4O+ (the most common)
- Clue 5O- (universal red cell donor)
Why this answer fits
Each item is written in the exact format used for blood types: an ABO group (A, B, AB, O) plus a positive or negative Rh factor. The plus/minus could be mistaken for grades or battery terminals, but the presence of AB and O makes the medical typing system the best fit.
Quick wink: “A+” opened the trail, “AB+” tested the theory, and “O- (universal red cell donor)” supplied the final confirmation.
How to find the connection
- Notice every clue is a capital letter or pair of letters followed by a + or − sign.
- Match the letters to ABO groups (A, B, AB, O) and the signs to Rh positive/negative notation.
- Confirm with the parenthetical hints about prevalence and donation compatibility, which are commonly discussed with blood types.
Clue-by-clue explanation
| Clue | Connection evidence |
|---|---|
| A+ | Clue "A+" denotes the ABO group A with Rh-positive status, a standard way blood types are recorded in medicine. |
| B- | Clue "B-" denotes the ABO group B with Rh-negative status, using the same plus/minus Rh convention as blood typing. |
| AB+ | Clue "AB+" names the AB ABO group paired with Rh-positive, one of the eight common blood type labels. |
| O+ (the most common) | Clue "O+ (the most common)" identifies type O with Rh-positive, often described as the most frequently occurring blood type. |
| O- (universal red cell donor) | Clue "O- (universal red cell donor)" points to type O with Rh-negative, commonly cited for broadly compatible red blood cell donation. |
Questions about Pinpoint #890
Which clues start this puzzle?
The first two clues are “A+” and “B-”. The complete five-clue list is above.
Where is the category answer?
Open “Reveal answer & analysis” above to see the category and a separate explanation for each clue.
Looking for today's puzzle?
This edition is dated Wednesday, October 7, 2026. Visit today's Pinpoint answer for the latest edition, or browse the archive.
X / Twitter
LinkedIn
Reddit