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Puzzle#271

Countdown

Released: 2026-07-25

8
Models Tested
3
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

248Target
100
50
25
75
4
10

(4 * 50) + 75 - 100 + 25

= 200

Failed

google/gemini-3-flash-preview

google

248Target
100
50
25
75
4
10

100 + 4 * (50 - 10 - 25/75)

= 258

Failed

deepseek/deepseek-chat-v3-0324

deepseek

248Target
100
50
25
75
4
10

(75 - 25) * (10 - 4) + 50 + 100

= 450

Failed

mistralai/mistral-medium-3

mistral

248Target
100
50
25
75
4
10

(100 + 50 + 75 + 25) * (10 - 4)

= 1500

Failed
MoonshotAI

moonshotai/kimi-k2.5

moonshot

248Target
100
50
25
75
4
10

(25 * 10) - (100 / 50)

= 248

Perfect Solution!
Z.ai

z-ai/glm-5

z-ai

248Target
100
50
25
75
4
10

(25 * 10) - (4 / (100 / 50))

= 248

Perfect Solution!
Minimax

minimax/minimax-m2.5

minimax

248Target
100
50
25
75
4
10

(100 * 10) / 4 - 50 / 25

= 248

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

248Target
100
50
25
75
4
10

100 * 4 - 75 + 25 - 50 / 10

= 345

Failed

Methodology Note

Each model receives the same prompt with the numbers to use. Models are tasked with creating an expression using only arithmetic operations to reach the target number. Each number can only be used once and you do not have to use all the numbers. Their answers are evaluated without feedback or retries.

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