MAD CHILD - Hydrogen Blueback [Challenge]
4K osu!mania chart for MAD CHILD - Hydrogen Blueback, mapped by Little Mouse Clan - The First StepMania Clan: 46.21 difficulty, 1:47 long, 1,182 notes, ranked. Leaderboard of 0 players on Nascent.
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{{ view.keyCount }}K leaderboard
{{ $f.number(view.total) }} ranked players
Plays
{{ $f.number(view.total) }} {{ view.keyCount }}K {{ view.performance ? 'ranked plays' : 'plays' }}
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{{ view.titles.sub }} · [{{ view.play.chart.difficulty_name }}] by {{ view.play.chart.mapper }}
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Waiting for review
- {{ flag.message }} {{ $f.flag(flag) }}
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Staff · this play was rejected
Note: {{ view.play.review_note }}
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Replay
The replay for this play couldn't be loaded.
Download replay file{{ view.user.username }} {{ view.user.role }} restricted
{{ view.strongest.key_count }}K
Staff
{{ staffError }}
Restricted players disappear from every leaderboard and can't submit plays or reports.
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- {{ grade }}{{ $f.number(view.user.stats.grade_counts[grade]) }}
Key modes
| Mode | Rank | Percentile | Peak | Performance | Accuracy | Ranked plays | Time played |
|---|---|---|---|---|---|---|---|
| {{ mode.key_count }}K | {{ $f.standing(mode.global_rank, mode.ranked_players) || "—" }} | {{ $f.rank(mode.peak_rank) }} | {{ $f.performance(mode.performance) }} | {{ $f.accuracy(mode.accuracy) }} | {{ $f.number(mode.ranked_play_count) }} | {{ $f.playtime(mode.total_playtime_ms) }} |
{{ view.modes.length ? view.keyCount + 'K activity' : 'Activity' }}
{{ view.keyCount }}K history
Favorite charts
-
{{ entry.chart.artist }} - {{ entry.chart.title }} [{{ entry.chart.difficulty_name }}]
{{ entry.chart.key_count }}K · {{ $f.plural(entry.plays, 'play') }} · best {{ $f.accuracy(entry.best_accuracy) }} · last
No plays yet.
Stats
Everything happening on Nascent
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Plays per day
Popular this week
Nobody has played this week yet.
| Chart | Keys | Plays | Players |
|---|---|---|---|
| {{ entry.chart.artist }} - {{ entry.chart.title }} [{{ entry.chart.difficulty_name }}] | {{ entry.chart.key_count }}K | {{ $f.number(entry.plays) }} | {{ $f.number(entry.players) }} |
Plays by key mode
Grades
- {{ grade }}{{ $f.number(view.activity.grades[grade]) }}
{{ view.data.model.name }}
See Nascent Calc V3 and how it compares
Scale
Dans at every rate
Nascent Benchmark
CalcTestList
2015 community vote
| Calculator | Nascent Benchmark | CalcTestList | 2015 vote | |||
|---|---|---|---|---|---|---|
| Agreement | Error | Agreement | Error | Agreement | Error | |
| {{ row.name }} | {{ row.scores.spearman.toFixed(3) }} | {{ row.scores.error.toFixed(3) }} | {{ row.calcTest.spearman.toFixed(3) }} | {{ row.calcTest.error.toFixed(2) }} | {{ row.community.spearman.toFixed(3) }} | {{ row.community.error.toFixed(3) }} |
Against Etterna MSD
Against osu! star rating
Difficulty to accuracy
Stronger players
Length, notes and holds
Jacks
Biggest contributors
Every weight
Weight adjustments
{{ view.data.model.name }}
In development; the game still uses V2. V2 page
Against V2 on held-out songs
Chart pairs ranked like players' scores, on unseen songs (95% intervals).
| Charts | V3 | V2 | Change | V3 close pairs | V2 close pairs | MSD | osu! stars |
|---|---|---|---|---|---|---|---|
| {{ row.mode }} | {{ (row.v3.pairs * 100).toFixed(2) }}% | {{ (row.v2.pairs * 100).toFixed(2) }}% | {{ row.gain >= 0 ? '+' : '' }}{{ (row.gain * 100).toFixed(2) }} | {{ (row.v3.close * 100).toFixed(2) }}% | {{ (row.v2.close * 100).toFixed(2) }}% | {{ (row.msd.pairs * 100).toFixed(2) }}% | {{ (row.osu.pairs * 100).toFixed(2) }}% |
Biggest movers
{{ view.data.compare.movers.charts.toLocaleString() }} charts compared. Median change {{ ((view.data.compare.movers.median_ratio - 1) * 100).toFixed(1) }}%; {{ (view.data.compare.movers.moved_10_percent * 100).toFixed(0) }}% moved over 10%.
Top {{ view.data.compare.movers.biggest.length }} ({{ view.data.compare.movers.min_scores }}+ scores), sorted by V2.
Every chart's change
V3 against V2
Which patterns moved
Which patterns are still misjudged
Below zero: charts with more of the pattern are rated too hard.
Vibro
Against what each map's scores imply. Average gap: V3 {{ view.data.compare.anthology.v3.mean_gap >= 0 ? '+' : '' }}{{ view.data.compare.anthology.v3.mean_gap.toFixed(1) }}, V2 {{ view.data.compare.anthology.v2.mean_gap >= 0 ? '+' : '' }}{{ view.data.compare.anthology.v2.mean_gap.toFixed(1) }}.
| Charts | Calculator | Vibro overrated by | Fast minijacks overrated by | Vibro ordering |
|---|---|---|---|---|
| {{ row.dataset }} | {{ row.calculator }} | {{ row.vibro >= 0 ? '+' : '' }}{{ row.vibro.toFixed(1) }} | {{ row['fast minijacks'] >= 0 ? '+' : '' }}{{ row['fast minijacks'].toFixed(1) }} | {{ row['vibro order'].toFixed(3) }} |
Dans
Skill dans
REFORM Speed, Stamina, Tech and Jack courses at 1.0x.
| Dan | {{ skill }} |
|---|---|
| {{ row.level }} | {{ cell.song }} {{ cell.v2.toFixed(1) }} → {{ cell.v3.toFixed(1) }} ({{ cell.change }}) |
Dans at every rate
Change from V2 at every rate
Nascent Benchmark
CalcTestList
By skillset
2015 community vote
| Calculator | Nascent Benchmark | CalcTestList | 2015 vote | |||
|---|---|---|---|---|---|---|
| Agreement | Error | Agreement | Error | Agreement | Error | |
| {{ row.name }} | {{ row.scores.spearman.toFixed(3) }} | {{ row.scores.error.toFixed(3) }} | {{ row.calcTest.spearman.toFixed(3) }} | {{ row.calcTest.error.toFixed(2) }} | {{ row.community.spearman.toFixed(3) }} | {{ row.community.error.toFixed(3) }} |
Scale
One note is 1, EXTRA-ZETA is 100. Under {{ view.data.model.small_chart.notes }} notes, fewer notes means easier.
Against Etterna MSD
Against osu! star rating
New in V3
Strain multipliers by note type
Dataset adjustments used during training
Training only; the game uses the shared multipliers.
How much a release counts
Long jack runs against short
New features
Difficulty to accuracy
Stronger players
Length, notes and holds
Jacks
Biggest contributors
Every weight
Weight adjustments
Charts
{{ $f.number(view.total) }} {{ route.params.status === 'all' ? 'charts' : 'ranked charts' }}
No charts match these filters.
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Source | Status | |||||
|---|---|---|---|---|---|---|---|
| {{ chart.artist }} - {{ chart.title }} [{{ chart.difficulty_name }}] | {{ chart.mapper }} | {{ chart.key_count }}K | {{ $f.length(chart.duration_ms) }} | {{ $f.number(chart.play_count) }} | {{ $f.source(chart) }} | {{ chart.status }} |
{{ view.titles.main }}
{{ view.titles.sub }}
[{{ view.chart.difficulty_name }}] by {{ view.chart.mapper }} {{ view.chart.status }} {{ $f.source(view.chart) }}
Staff
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Difficulty at {{ $f.rate(view.rate) }}
{{ $f.performance(view.difficulty) }}
{{ label }}
{{ value }}
Each player's best performance across every rate · {{ $f.number(view.board.total) }} players
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Signed in devices
| Device | Address | Last used | Actions |
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Staff
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Review queue
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· reported by {{ report.reporter.username }}a deleted account
·
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{{ report.chart.artist }} - {{ report.chart.title }} [{{ report.chart.difficulty_name }}] {{ report.chart.status }}
The reported item was deleted.
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Resolving or dismissing also closes the other open reports about the same {{ report.kind }}.
{{ report.status === 'resolved' ? 'Resolved' : 'Dismissed' }} by {{ report.resolved_by?.username ?? 'a deleted account' }}
Nothing here.
{{ play.chart.artist }} - {{ play.chart.title }} [{{ play.chart.difficulty_name }}]
{{ $f.accuracy(play.accuracy) }} · {{ $f.rate(play.rate) }} · {{ play.ranked ? $f.performance(play.performance) + ' performance' : 'Unranked' }}
- {{ flag.message }} {{ $f.flag(flag) }}
Note: {{ play.review_note }}