Costcodle answer for September 21, 2023
Puzzle #2. I read this row from the official games list. The date is the UTC calendar day sampled at noon; your live game may show another number in your time zone.
The shelf price
The item is Kirkland Signature Wild Chilean Sea Bass, 1.5 lb. The price stored for this puzzle is $23.99. A winning guess is any amount from $22.80 through $25.18, because the game accepts a guess within 5 percent. The yellow band, within 25 percent but not yet a win, runs from $18.00 to $29.98.
How I would have opened it
If I had started this day at $14.39, that guess would sit about 40.0 percent under $23.99. Anything beyond 25 percent away is a red tile. I would then jump toward the middle of the remaining range instead of nudging by a dime. Once a guess lands inside the yellow band I only test the center of $22.80 to $25.18.
Neighbors
- Next: #3 Bark Thins Dark Chocolate Almond, 20 oz on 2023-09-22
- This month: 2023-09
Source: games.json in KermWasTaken/costcodle, key game-2. Win math follows percentAway in scripts/main.js. Checked 2026-09-30.