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Puzzle#263

Countdown

Released: 2026-07-17


8
Models Tested
2
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

838Target
75
3
10
8
8
4

((75 * 10) + (8 * 8)) + 3

= 817

Failed

mistralai/mistral-medium-3

mistral

838Target
75
3
10
8
8
4

(75 * (10 + 4)) - (8 * 8)

= 986

Failed

google/gemini-3-flash-preview

google

838Target
75
3
10
8
8
4

((75 + 3) * 10) + (8 * 8) + 4

= 848

Failed

deepseek/deepseek-chat-v3-0324

deepseek

838Target
75
3
10
8
8
4

((75 + 10) * (8 + 4)) - (8 - 3)

= 1015

Failed

MoonshotAI

moonshotai/kimi-k2.5

moonshot

838Target
75
3
10
8
8
4

10 * (75 + 8) + 8

= 838

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

838Target
75
3
10
8
8
4

(75 + 3) * 10 + 8 * (8 - 4)

= 812

Failed

Z.ai

z-ai/glm-5

z-ai

838Target
75
3
10
8
8
4

75 * 10 + 8 * (8 + 3)

= 838

Perfect Solution!

Minimax

minimax/minimax-m2.5

minimax

838Target
75
3
10
8
8
4

(75 + 8) * 10 + 8 - 4 - 3

= 831

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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