AI vs Puzzles

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Puzzle#258

Countdown

Released: 2026-07-12

8
Models Tested
4
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

757Target
50
75
6
7
8
8

75 * 8 + 7

= 607

Failed

mistralai/mistral-medium-3

mistral

757Target
50
75
6
7
8
8

((75 * (8 + 7)) - (50 / (8 - 6)))

= 1100

Failed

deepseek/deepseek-chat-v3-0324

deepseek

757Target
50
75
6
7
8
8

(75 * (8 + (50 / (8 + 7)))) + 6

= 856

Failed
Z.ai

z-ai/glm-5

z-ai

757Target
50
75
6
7
8
8

75*(8+8-6)+7

= 757

Perfect Solution!
MoonshotAI

moonshotai/kimi-k2.5

moonshot

757Target
50
75
6
7
8
8

75 * (8 + 8 - 6) + 7

= 757

Perfect Solution!
Minimax

minimax/minimax-m2.5

minimax

757Target
50
75
6
7
8
8

(75 + 50) * 6 + 7 + 8 - 8

= 757

Perfect Solution!

google/gemini-3-flash-preview

google

757Target
50
75
6
7
8
8

(50 + 75) * 6 + 7

= 757

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

757Target
50
75
6
7
8
8

((75 + 8) * 8) + 50 + 7 - 6

= 715

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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