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Puzzle#150

Countdown

Released: 2026-03-26


11
Models Tested
4
Solved
9
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-2.0-flash-001

google

259Target
100
25
50
75
2
7

(75 * 2) + 100 + 25 - 50 - 7

= 218

Failed

openai/gpt-4o

openai

259Target
100
25
50
75
2
7

((50 + 2) * 7) - (100 - 75)

= 339

Failed

google/gemini-3-flash-preview

google

259Target
100
25
50
75
2
7

(2 * 100) + 50 + (75 / 25) + 7

= 260

Close; 1 away

deepseek/deepseek-chat-v3-0324

deepseek

259Target
100
25
50
75
2
7

(100 * 2) + 50 + 7 + 75 - 25

= 307

Failed

Minimax

minimax/minimax-m2.5

minimax

259Target
100
25
50
75
2
7

100+75+50+25+7+2

= 259

Perfect Solution!

x-ai/grok-3-mini-beta

x-ai

259Target
100
25
50
75
2
7

100 + 75 + 50 + 25 + 7 + 2

= 259

Perfect Solution!

MoonshotAI

moonshotai/kimi-k2.5

moonshot

259Target
100
25
50
75
2
7

(75 * 2 + 100 + 50 / 25 + 7)

= 259

Perfect Solution!

mistralai/mistral-medium-3

mistral

259Target
100
25
50
75
2
7

(100 + 75 + 50 + 25) + (7 * 2)

= 264

Close; 5 away

Z.ai

z-ai/glm-5

z-ai

259Target
100
25
50
75
2
7

100 + 75 + 50 + 25 + 7 + 2

= 259

Perfect Solution!

anthropic/claude-3.7-sonnet

anthropic

259Target
100
25
50
75
2
7

(7 * 50) - 100 + 25 - 2 * 75

= 125

Failed

anthropic/claude-sonnet-4.6

anthropic

259Target
100
25
50
75
2
7

100 * 2 + 75 - 25 + 7 + 50

= 307

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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