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The AI, measured

One opponent per game. Strength numbers come from tests or counted matches; an unmeasured level is in training.

Twelve Yards against people

Human win rate vs Marlow, by week

0%15%30%45%60%75%90%Sep 10Sep 17Sep 24Oct 1Oct 8Oct 15Oct 22Oct 29Week of Oct 29: 100% (2 of 2 matches), too few matches to trust100%
Each point is a week of finished human matches against Marlow.solid: 30 or more matches. Dashed and hollow: too few matches to trust.
Twelve Yards is a hand-written habit reader with nothing to train.

Twelve Yards is not a learned model: Pip keeps a favourite corner and a favourite dive; the other three are small programs that read the kicks and dives so far in this match. There is nothing to train. Your match is recorded for your report and the board.

  1. v1, champion Nov 4Each level beat the level below, and Pip beat random legal play, from both seats over 1000 games a seat. No human matches used.
What is site Elo?

Site Elo is a strength number we measure by playing the levels against each other. Easy is pinned at 1000 and every other level is placed from its results against the one below. A gap of 200 points means the stronger side is expected to win about three games in four (76 in 100, counting a draw as half). It is not a FIDE or chess.com rating, so it says nothing about how you would score against people.

Twelve Yards agent

Hand-written habit reader: does not learn from site matches, because there is nothing to train.

Humans win vs Hard, last 7 days

29%

2 of 7 counted matches

Current version

v1

promoted Nov 4

Matches vs humans

14

14 passed the filters

Champion strength

1151

site Elo, measured

Human win rate by level

weekly, last eight weeks, counted matches only

Not enough weekly results to chart yet.

Levels, measured strength and limits
Easy61.1% (58.9% to 63.2%, 2000 games)score vs random1000
Medium58.9% (56.7% to 61.0%, 2000 games)score vs easy1062
Hard56.3% (54.1% to 58.4%, 2000 games)score vs medium1106
Champion56.4% (54.2% to 58.6%, 2000 games)score vs hard1151

Head to head

stronger level's score against the level below, with its confidence interval

  • Medium vs Easy58.9%stronger wins, 2000 games56.7% to 61.0%
  • Hard vs Medium56.3%stronger wins, 2000 games54.1% to 58.4%
  • Champion vs Hard56.4%stronger wins, 2000 games54.2% to 58.6%

Version history

  1. v1All levels measured. First version. No human matches used. Nov 4

Human matches, Twelve Yards

where they go

  • Played15
  • Finished14
  • Passed every filter14
  • Allowed for training0
  • Used for training0

Nothing is used for training. 0 opted-out matches never leave the database. 14 not used: this agent is scripted and has nothing to train.

  • 1 resigned

What changed

measured, not described

No measured change is recorded for this version.