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Puzzle#198

Countdown

Released: 2026-05-13


10
Models Tested
2
Solved
9
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-3-flash-preview

google

835Target
75
50
8
9
1
6

(8*(75+50))-9*(1+6)

= 937

Failed

google/gemini-2.0-flash-001

google

835Target
75
50
8
9
1
6

(75 + 50) * 6 + 1 - 9

= 742

Failed

mistralai/mistral-medium-3

mistral

835Target
75
50
8
9
1
6

(75 * (9 + (50 - 6))) + (8 / 1)

= 3983

Failed

openai/gpt-4o

openai

835Target
75
50
8
9
1
6

(50 + 75 + 6) * 8 + 9

= 1057

Failed

deepseek/deepseek-chat-v3-0324

deepseek

835Target
75
50
8
9
1
6

((75 + 50) * 6) + (9 - 8)

= 751

Failed

Minimax

minimax/minimax-m2.5

minimax

835Target
75
50
8
9
1
6

((75 + 50) * 9) + 6 + 8 + 1

= 1140

Failed

Z.ai

z-ai/glm-5

z-ai

835Target
75
50
8
9
1
6

50 * (8 + 9) - 75 / (6 - 1)

= 835

Perfect Solution!

MoonshotAI

moonshotai/kimi-k2.5

moonshot

835Target
75
50
8
9
1
6

50 * (9 + 8) - 75 / (6 - 1)

= 835

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

835Target
75
50
8
9
1
6

(75 + 9 - 1) * (50 - 8) / 6

= 581

Failed

x-ai/grok-3-mini-beta

x-ai

835Target
75
50
8
9
1
6

((75 + 50) * 6 + 9 * 8 + 1)

= 823

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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