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Puzzle#209

Countdown

Released: 2026-05-24


9
Models Tested
5
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-3-flash-preview

google

119Target
25
6
2
3
1
3

(25 * (6 - 1)) - (3 * 2)

= 119

Perfect Solution!

openai/gpt-4o

openai

119Target
25
6
2
3
1
3

(25 * 3) + (6 * 2) - 1

= 86

Failed

mistralai/mistral-medium-3

mistral

119Target
25
6
2
3
1
3

(25 * 6) - (3 * (3 + 2)) + 1

= 136

Failed

deepseek/deepseek-chat-v3-0324

deepseek

119Target
25
6
2
3
1
3

((25 * 6) - (3 + 1)) * 3

= 438

Failed

google/gemini-2.0-flash-001

google

119Target
25
6
2
3
1
3

(25 * 6) - (3 + 3 + 1 + 2)

= 141

Failed

anthropic/claude-sonnet-4.6

anthropic

119Target
25
6
2
3
1
3

25 * (6 - 1) - 3 - 3

= 119

Perfect Solution!

Z.ai

z-ai/glm-5

z-ai

119Target
25
6
2
3
1
3

25 * (3 + 2) - 6

= 119

Perfect Solution!

MoonshotAI

moonshotai/kimi-k2.5

moonshot

119Target
25
6
2
3
1
3

25 * (3 + 2) - 6

= 119

Perfect Solution!

Minimax

minimax/minimax-m2.5

minimax

119Target
25
6
2
3
1
3

25 * (3 + 2) - 6

= 119

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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