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Puzzle#287

Countdown

Released: 2026-08-10


7
Models Tested
4
Solved
7
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-3-flash-preview

google

842Target
25
75
100
5
8
2

8 * (100 + 5) + 2

= 842

Perfect Solution!

mistralai/mistral-medium-3

mistral

842Target
25
75
100
5
8
2

((100 - 5) * (8 + 2)) + 75 + 25

= 1050

Failed

openai/gpt-4o

openai

842Target
25
75
100
5
8
2

(100 + 25) * 8 - 75 - 5 + 2

= 922

Failed

deepseek/deepseek-chat-v3-0324

deepseek

842Target
25
75
100
5
8
2

(100 * 8) + (75 - (25 / 5)) + 2

= 872

Failed

MoonshotAI

moonshotai/kimi-k2.5

moonshot

842Target
25
75
100
5
8
2

(100 + 5) * 8 + 2

= 842

Perfect Solution!

Minimax

minimax/minimax-m2.5

minimax

842Target
25
75
100
5
8
2

75 * ((25 - 5) / 2) + 100 - 8

= 842

Perfect Solution!

Z.ai

z-ai/glm-5

z-ai

842Target
25
75
100
5
8
2

100 * 8 + 25 + 75 / 5 + 2

= 842

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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