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Puzzle#126

Countdown

Released: 2026-03-02


11
Models Tested
2
Solved
9
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

mistralai/mistral-medium-3

mistral

999Target
75
6
6
5
4
3

((75 * (6 + 6)) * (5 + 4)) - 3

= 8097

Failed

google/gemini-2.0-flash-001

google

999Target
75
6
6
5
4
3

(75 * 6 * 3) - (6 + 5 + 4)

= 1335

Failed

openai/gpt-4o

openai

999Target
75
6
6
5
4
3

(75 * (6 + 6 + 5) - 4)

= 1271

Failed

anthropic/claude-3.7-sonnet

anthropic

999Target
75
6
6
5
4
3

(75 + 4) * (3 + 6 + 5)

= 1106

Failed

Minimax

minimax/minimax-m2.5

minimax

999Target
75
6
6
5
4
3

(75 * 6 * 6) - (5 * 4 * 3)

= 2640

Failed

deepseek/deepseek-chat-v3-0324

deepseek

999Target
75
6
6
5
4
3

((75 + 6) * (6 + 5)) + (4 * 3)

= 903

Failed

x-ai/grok-3-mini-beta

x-ai

999Target
75
6
6
5
4
3

75 * (4 + 6 + 3) + (6 * 5)

= 1005

Close; 6 away

Z.ai

z-ai/glm-5

z-ai

999Target
75
6
6
5
4
3

(75 + 6 * 6) * (5 + 4)

= 999

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

999Target
75
6
6
5
4
3

((75 * 6) + (6 * 5 * 4 + 3))

= 573

Failed

google/gemini-3-flash-preview

google

999Target
75
6
6
5
4
3

((75*3)+6+6)*4+5

= 953

Failed

MoonshotAI

moonshotai/kimi-k2.5

moonshot

999Target
75
6
6
5
4
3

75 * (6 * 3 - 5) + 6 * 4

= 999

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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