AI vs Puzzles

Back to Home
Puzzle#153

Countdown

Released: 2026-03-29


11
Models Tested
6
Solved
9
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-2.0-flash-001

google

153Target
25
4
1
8
2
3

(25 * 8) - (4 * 2) - 3 - 1

= 188

Failed

google/gemini-3-flash-preview

google

153Target
25
4
1
8
2
3

(25 + 1) * (8 - 2) - 3

= 153

Perfect Solution!

openai/gpt-4o

openai

153Target
25
4
1
8
2
3

(25 * 4 * 2) - 1

= 199

Failed

anthropic/claude-3.7-sonnet

anthropic

153Target
25
4
1
8
2
3

(25 * 2 * 3) + (4 + 1)

= 155

Close; 2 away

mistralai/mistral-medium-3

mistral

153Target
25
4
1
8
2
3

((25 * (8 - 1)) * 3) + (4 * 2)

= 533

Failed

deepseek/deepseek-chat-v3-0324

deepseek

153Target
25
4
1
8
2
3

(25 * (8 - 2)) + 3

= 153

Perfect Solution!

x-ai/grok-3-mini-beta

x-ai

153Target
25
4
1
8
2
3

25 * (2 * 3) + (4 - 1)

= 153

Perfect Solution!

Minimax

minimax/minimax-m2.5

minimax

153Target
25
4
1
8
2
3

25 * (8 - 2) + 3 * 1

= 153

Perfect Solution!

Z.ai

z-ai/glm-5

z-ai

153Target
25
4
1
8
2
3

25 * (4 + 2) + 3

= 153

Perfect Solution!

MoonshotAI

moonshotai/kimi-k2.5

moonshot

153Target
25
4
1
8
2
3

25 * (4 + 2) + 3

= 153

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

153Target
25
4
1
8
2
3

((25 - 2) * 8) - (4 - 3 + 1)

= 182

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.

Leaderboard