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[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "A fair six-sided die is rolled once. If the result is an even number, you win that many dollars (e.g., rolling a 4 win...
{ "id": "gen-844c21bae71532c1", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "A fair six-sided die is rolled once. If the result is an even number, you win that many dollars (e.g., rolling a 4 wins $4). If the result is an odd number, you los...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "An initially empty hash table with 10 slots uses open addressing with linear probing and the hash function h(k) = k mo...
{ "id": "gen-688bea6c9d1a5f78", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "An initially empty hash table with 10 slots uses open addressing with linear probing and the hash function h(k) = k mod 10. The keys 12, 22, 32, 42, and 52 are inse...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "A cube with side length 6 has vertices at (0,0,0), (6,0,0), (0,6,0), (0,0,6), (6,6,0), (6,0,6), (0,6,6), and (6,6,6). ...
{ "id": "gen-5b0557ff6476e70e", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "A cube with side length 6 has vertices at (0,0,0), (6,0,0), (0,6,0), (0,0,6), (6,6,0), (6,0,6), (0,6,6), and (6,6,6). A plane passes through the points (6,0,0), (0,...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "We need to write a single introductory question about economics and incentives. Must be self-contained, single correct...
{ "id": "gen-a0205488393cbb3d", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "We need to write a single introductory question about economics and incentives. Must be self-contained, single correct answer, solvable through explicit reasoning, ...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "A program is intended to compute the sum of all even integers from 1 to N (inclusive), where N is a positive integer p...
{ "id": "gen-56c4de2cddc3ad1c", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "A program is intended to compute the sum of all even integers from 1 to N (inclusive), where N is a positive integer provided by the user. The programmer wrote the ...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "The following table shows quarterly sales (in thousands of units) for four regions:\n\nRegion | Q1 | Q2 | Q3 | Q4\nNor...
{ "id": "gen-37b96be6154f15d0", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "The following table shows quarterly sales (in thousands of units) for four regions:\n\nRegion | Q1 | Q2 | Q3 | Q4\nNorth | 120 | 150 | 130 | 160\nSouth | 200 | 210 ...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "Consider the following algorithm for computing the greatest common divisor (GCD) of two positive integers a and b:\n\n...
{ "id": "gen-88175fde8abfa4fe", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "Consider the following algorithm for computing the greatest common divisor (GCD) of two positive integers a and b:\n\nwhile b ≠ 0:\n t = b\n b = a mod b\n ...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "In a blocks world, there are four blocks labeled 1, 2, 3, and 4. The initial configuration is: Block 1 is on the table...
{ "id": "gen-400ec6f8c48aca94", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "In a blocks world, there are four blocks labeled 1, 2, 3, and 4. The initial configuration is: Block 1 is on the table with Block 2 on top of it; Block 3 is on the ...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "A cube has side length 6. A tetrahedron is formed by one vertex of the cube and the three vertices adjacent to that ve...
{ "id": "gen-5fbf62d393928e31", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "A cube has side length 6. A tetrahedron is formed by one vertex of the cube and the three vertices adjacent to that vertex. A sphere is inscribed in this tetrahedro...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "A cylindrical glass is filled exactly to the brim with water at 0°C. A large ice cube floats in the water, with a smal...
{ "id": "gen-13d5e309906a6f3b", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "A cylindrical glass is filled exactly to the brim with water at 0°C. A large ice cube floats in the water, with a small solid metal nut (denser than water) frozen c...
[ { "from": "system", "value": "You are an expert tutor. Think step by step and show your full reasoning, then give a clear, correct final answer." }, { "from": "human", "value": "We need to write an advanced question about algorithms and data structures, self-contained, single correct answer, sol...
{ "id": "gen-05228e84ea794e61", "source": "generated", "model": "nvidia/nemotron-3-ultra-550b-a55b-20260604:free", "effort": "high", "question": "We need to write an advanced question about algorithms and data structures, self-contained, single correct answer, solvable through reasoning. No answer, no hints. ...
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Just under 2000 CoT synthetic prompt chains distilled from Nemotron 3 Ultra w/ High effort gathered using OpenCode entirely for free. Using a propertary harness developed by me but currently private, partially synthetic or fully sythentic datasets can be created from any of the free models offered by OpenCode, with respect to rate-limiting. In this case, a fully sythentic dataset of 1800ish rows was generated by "nemotron-3-ultra-free" using the maximium high effort reasoning. This was done by using the full sythentic "generate" mode of my OpenReasoningHarness, which prompts the model for the user's prompt, then completes it in fresh context, with CoT preserved. I will attempt to honor requests for other models to be distilled, the following are available for free on OpenCode as of 6/25/26:

Free models (registry key -> label):
  deepseek-v4-flash-free   DeepSeek V4 Flash Free   effort: low/medium/high/max  *default
  opencode-zen             OpenCode Zen             effort: low/medium/high
  big-pickle               Big Pickle               effort: low/medium/high
  mimo-v2.5-free           MiMo V2.5 Free           effort: low/medium/high
  nemotron-3-ultra-free    Nemotron 3 Ultra Free    effort: low/medium/high/max
  north-mini-code-free     North Mini Code Free     effort: low/medium/high
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