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Puzzle#279

Countdown

Released: 2026-08-02


7
Models Tested
3
Solved
7
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

906Target
50
75
5
9
6
2

(75 * 6) + 50 + 2 - (9 - 5)

= 498

Failed

deepseek/deepseek-chat-v3-0324

deepseek

906Target
50
75
5
9
6
2

((75 * (9 + 2)) + 50) + 5

= 880

Failed

Z.ai

z-ai/glm-5

z-ai

906Target
50
75
5
9
6
2

75 * (9 + 5 - 2) + 6

= 906

Perfect Solution!

Minimax

minimax/minimax-m2.5

minimax

906Target
50
75
5
9
6
2

75 * (9 + 5 - 2) + 6

= 906

Perfect Solution!

MoonshotAI

moonshotai/kimi-k2.5

moonshot

906Target
50
75
5
9
6
2

75 * ((50 - 2) / (9 - 5)) + 6

= 906

Perfect Solution!

mistralai/mistral-medium-3

mistral

906Target
50
75
5
9
6
2

((75 + 50 + 6) * 9) * 2

= 2358

Failed

google/gemini-3-flash-preview

google

906Target
50
75
5
9
6
2

(50 + 75) * (9 - 2) + 6 * 5

= 905

Close; 1 away

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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