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Puzzle#208

Countdown

Released: 2026-05-23


9
Models Tested
5
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-2.0-flash-001

google

137Target
100
7
5
5
7
5

(7 + 5) * (100 / (7 + 5))

= 100

Failed

mistralai/mistral-medium-3

mistral

137Target
100
7
5
5
7
5

(100 + (7 * 5)) + (7 + 5)

= 147

Failed

google/gemini-3-flash-preview

google

137Target
100
7
5
5
7
5

(100 + (7 * 5)) + (7 - 5)

= 137

Perfect Solution!

deepseek/deepseek-chat-v3-0324

deepseek

137Target
100
7
5
5
7
5

(100 + (7 * 5)) + (7 + 5)

= 147

Failed

anthropic/claude-sonnet-4.6

anthropic

137Target
100
7
5
5
7
5

100 + 7 * 5 + 7 - 5

= 137

Perfect Solution!

Z.ai

z-ai/glm-5

z-ai

137Target
100
7
5
5
7
5

100 + 7 * 5 + 7 - 5

= 137

Perfect Solution!

Minimax

minimax/minimax-m2.5

minimax

137Target
100
7
5
5
7
5

100 + 7 + 7*5 - 5

= 137

Perfect Solution!

MoonshotAI

moonshotai/kimi-k2.5

moonshot

137Target
100
7
5
5
7
5

100 + 7 * 5 + 7 - 5

= 137

Perfect Solution!

openai/gpt-4o

openai

137Target
100
7
5
5
7
5

(100 + (7 * 5)) + 7

= 142

Close; 5 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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