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Puzzle#276

Countdown

Released: 2026-07-30


7
Models Tested
4
Solved
7
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

512Target
75
5
6
10
5
7

(75 * 7) - 5 + (10 / 5)

= 522

Failed

google/gemini-3-flash-preview

google

512Target
75
5
6
10
5
7

(75 + 10) * 6 + 7 - 5

= 512

Perfect Solution!

deepseek/deepseek-chat-v3-0324

deepseek

512Target
75
5
6
10
5
7

((75 - 5) * (7 + (10 - 6)))

= 770

Failed

mistralai/mistral-medium-3

mistral

512Target
75
5
6
10
5
7

((75 + (10 * 6)) * (7 + 5)) - 5

= 1615

Failed

Minimax

minimax/minimax-m2.5

minimax

512Target
75
5
6
10
5
7

(75 + 7) * 6 + 10 + 5 + 5

= 512

Perfect Solution!

MoonshotAI

moonshotai/kimi-k2.5

moonshot

512Target
75
5
6
10
5
7

7 * 75 - 6 - 5 - 10 / 5

= 512

Perfect Solution!

Z.ai

z-ai/glm-5

z-ai

512Target
75
5
6
10
5
7

((75 - 5) - 6) * (10 - 7 + 5)

= 512

Perfect Solution!

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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