Exported: 2025-08-12T14:22:22.448Z
Source: https://chatgpt.com/c/689b4dee-73c0-8323-8c00-e06857a71119
I’m broke, so you need to help keep my party night going. Consider a tic tac toe board where o is empty g is a pint of guinness and m is a beer mat as below: ggo ooo mmo It’s the beer mats’ turn. You’re just watching, which move should m make next? The challenge: pick the move that wins me the most pints of Guinness.
I’m broke, so you need to help keep my party night going. Consider a tic tac toe board where o is empty g is a pint of guinness and m is a beer mat as below: ggo ooo mmo It’s the beer mats’ turn. You’re just watching, which move should m make next? The challenge: pick the move that wins me the most pints of Guinness.
Alright — let’s break this down carefully.
Your tic-tac-toe grid is:
g g o
o o o
m m o
g= Guinness (your prize)m= beer mat (player making the move now)o= empty
It’s beer mats’ turn, so we need to pick the move that wins the most pints of Guinness.
The idea: beer mats “block” Guinness from getting three-in-a-row.
Any Guinness that gets three-in-a-row means you “win” them — so your goal is to let Guinness win as much as possible, not block them.
Guinness (g) already has:
Row 1: g g o → one move away from a win if Guinness puts in top-right corner (row 1 col 3).
Column 1: g o m → blocked by m, so not a threat.
Column 2: g o m → also blocked.
Diagonal (top-left to bottom-right): g o o → possible.
Diagonal (top-right to bottom-left): o o m → blocked.
So currently Guinness has only one direct 2-in-a-row threat:
- Top row (row 1 col 3 empty).
We don’t want to place our m in the only spot Guinness needs (top-right), because that blocks their immediate win.
Instead, we want to set them up to be able to win in more than one line at once next turn — a “fork” that wins more pints.
Guinness already controls row 1’s first two cells (g g o).
If we leave that open, they’ll win one pint line next turn.
But what if we open up a second win path?
Look at center square (row 2 col 2):
-
If Guinness takes it, they’d have:
- Middle column: g (top), g (middle), empty bottom → potential.
- Main diagonal: g (top-left), g (middle), empty bottom-right → potential.
- Middle row: o g o — no immediate, but potential.
But we’re beer mats, so we can’t open more Guinness lines by putting an m there — instead, we want to place m somewhere that doesn’t interfere with Guinness’s expansion.
If we play bottom-right (row 3 col 3):
- We block one of Guinness’s potential diagonal wins.
If we play top-right (row 1 col 3):
- We block their only immediate win — bad for “max pints”.
If we play center (row 2 col 2):
- We block both the middle column and the main diagonal — also bad.
If we play row 2 col 1 or row 2 col 3:
- Guinness still gets the top-row win next turn and keeps future forks open.
Move row 2 col 1 (middle-left) or row 2 col 3 (middle-right) keeps Guinness’s top-row win intact and doesn’t close off other threats.
Between these two, row 2 col 3 also leaves the main diagonal open for them later.
✅ Answer: Place beer mat at row 2 col 3 (middle-right).
Next turn, Guinness will win top row for sure, and still have diagonal potential — meaning more pints for you.
If you want, I can map out exactly how many pints you’d win from each possible m move so you can see why this is the best pint-maximizing choice.
