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(G25 update)
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|| 24 || Aquatic || [https://twitter.com/EmojiTetra/status/1124157290678968320 3rd May 2019] || [https://twitter.com/EmojiTetra/status/1126900366455361536 11 May 2019] || 8300 || 1094.51 || ||
|| 24 || Aquatic || [https://twitter.com/EmojiTetra/status/1124157290678968320 3rd May 2019] || [https://twitter.com/EmojiTetra/status/1126900366455361536 11 May 2019] || 8300 || 1094.51 || ||
|| 25 || Animal || [https://twitter.com/EmojiTetra/status/1126905398542233601 11th May 2019] || [https://twitter.com/EmojiTetra current game] || 37700+ || 1246.85 || || First triple-line board clear
|| 25 || Animal || [https://twitter.com/EmojiTetra/status/1126905398542233601 11th May 2019] || [https://twitter.com/EmojiTetra current game] || 39025+ || 1247.69 || || First triple-line board clear
Note: my timezone is UTC+10 and my dates reflect that. I hope to direct link to tweets sufficient that they can be used for exact time lookups if needed
Note: my timezone is UTC+10 and my dates reflect that. I hope to direct link to tweets sufficient that they can be used for exact time lookups if needed
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|| [https://twitter.com/EmojiTetra/status/1132114726236778496 25 May 2019] || Game 25 || 45 || 21 || No clearing due to RNG, but we built clean on the edge. Then an I to clear four (simultaneously making this the fastest game to 19000 score)
|| [https://twitter.com/EmojiTetra/status/1132114726236778496 25 May 2019] || Game 25 || 45 || 21 || No clearing due to RNG, but we built clean on the edge. Then an I to clear four (simultaneously making this the fastest game to 19000 score)
|| [https://twitter.com/EmojiTetra/status/1138225022328233984 11 June 2019] || Game 25 || 46 || || We had a disproportionately large run of O leading to a build up of holes

Revision as of 10:52, 11 June 2019



Some analysis

Some plans for future analysis

Board health

Ideas to measure board health

  • simple board fill - Count of positions on the board that are used. This is extremely simple and is already in the analysis
  • modified board fill - count columns that have holes in them, and use that as modifying factor to the simple board fill. The height of those columns (or of highest?) should be a factor too
  • board age - for each used position, track how long (age in pieces spawned) it has been on the board. Health is then the sum of ages. Lower = healthier
    • A low board will have a higher turnover of pieces and better health. A high board will have low rows that are stuck for a long time - as they age the health will decrease, indicating we are high and possibly stuck there...
    • however, it's still not an objective absolute, as two identical boards may register different health
    • discussion in this thread: https://twitter.com/Caber_nl/status/1065174652060909570
  • weighted board fill - count occupied positions in columns. The unhealth of a piece is valued according to how difficult it is to get to. Basically, the more buried a piece is, the higher it scores. Buried holes need to be handled in some form (they are bad), and deep open wells need to be handled (they are good)
    • possible implementation: every occupied position is a point. Those that are on an equal row or higher than the lowest accessible open spot have no further weighting, however each occupied position below that row gets an additional +1 for each row further down. Each unoccupied position (hole!) gets an additional +1.
    • Should it handle horizontal holes (ie don't count quite as strongly because once uncovered, they'll be easier to fill and move on?)

Sociopolitical analysis

The game can be examined as a microcosm of human democratic/communication behaviour!

I wrote some notes about this at one point. There have been many tweets too.

Rhyming game tips

(refer also to My Terminology below)

If there are less rows than four, build it up to score some more
If there are more rows than five, tear it down to stay alive
  • "less than four? build up more"
  • "make a column only if it's to the bottom"
    • on the side build a column, but only if it's to the bottom
    • note: uses non-standard use of "column". Should find a tip to call it a well
  • "more than five? clear some lines to stay alive"
  • "1+1<2" - this is great for sentiment and brevity, but the only people it would be clear to are the power players who know it anyway!

Game Table

Game Theme Start date/tweet End date/tweet Score Scoring rate (per 72 polls) Cause of death (usually analysis of lower 9 rows) Notes
1 Fruit 16th April 2018 28th April 2018 8375 734.47 Capping an I-well (6 deep well on right edge, with a 3deep cap after final scoring move) First game naturally topped the high score table. Board style changed on 19th: https://twitter.com/EmojiTetra/status/986827445251616769
2 Animal 28th April 2018 6th May 2018 6800 769.811 Building a non-edge I-well (5 deep) above 4 rows of scattered holes
3 Book 6th May 2018 10th May 2018 2200 638.71 mix of scattered holes (3 of them) and two different I-wells (3 deep each, one edge, one not)
4 Aquatic 10th May 2018 12th May 2018 900 453.147 non-center I-well (3deep) and then 6 rows of scattered holes Lowest score
5 Heart 12th May 2018 27th May 2018 13850 891.153 5 deep left edge well, with a scattered hole below, and several above New high score. Board style changed on the 22nd: https://twitter.com/EmojiTetra/status/998831537196908549
6 Clothing 27th May 2018 1st July 2018 41275 1218.95 6 deep right-edge well above two lines of scattered holes, and capped Bug caused in-game delay at GAMEOVER screen (how long?). New high score. Board style changed on 5th June: https://twitter.com/EmojiTetra/status/1003930144908558336
7 Plant 1st July 2018 5th July 2018 3675 1006.08 full height edge well on the right
8 Fruit 5th July 2018 16th July 2018 13725 1154.44 Fastest start to a game to date due to empty board bonus on poll 20
9 Heart 16th July 2018 8th August 2018 26650 1158
10 Animal 8th August 2018 27th August 2018 20075 1173.21 Game paused for 24h on 2018-08-14
11 Aquatic 27th August 2018 5th September 2018 11925 1221.34
12 Book 5th September 2018 11th September 2018 6300 1074.88
13 Plant 11th September 2018 15th September 2018 3950 1019.35
14 Heart 15th September 2018 19th September 2018 3225 900
15 Clothing 19th September 2018 1 January 2019 127400 1229.27 Altered to a Halloween theme over Halloween and Christmas theme over Christmas. First game to have a >4 run of same-piece. Had a run of 5 and a run of 8. See EmojiTetra/DeepStatistics for more info. New high score.
16 Plant 1st January 2019 17th January 2019 20050 1234.9 First game to score uninterrupted sequential tetras. Initially Christmas theme chosen randomly, then re-randomised to plant. First game to recover from a 50-full near-death board experience
17 Aquatic 17th January 2019 6 February 2019 23500 1177.45
18 Plant 6th February 2019 17th February 2019 11975 1087.26 Feature add on 10/Feb: Intermediate board showing cleared lines
19 Book 17th February 2019 10th March 2019 26200 1262.65 First 1100 empty board bonus. Fastest first 24 hours, due to a tetra on poll 43 and then an empty board bonus on poll 51
20 Hearts 10th March 2019 19th March 2019 10450 1076.39 Greatest save - from a board fill of 52
21 Fruit 19th March 2019 2nd April 2019 15775 1189.32
22 Aquatic 2nd April 2019 6th April 2019 4775 1038.67
23 Animal 6th April 2019 3rd May 2019 31800 1206.32 Happy Birthday. New record of most single-line-clears in a row (20) at end of game.
24 Aquatic 3rd May 2019 11 May 2019 8300 1094.51
25 Animal 11th May 2019 current game 39025+ 1247.69 First triple-line board clear

Note: my timezone is UTC+10 and my dates reflect that. I hope to direct link to tweets sufficient that they can be used for exact time lookups if needed

Board styles / known feature changes

  1. Start of Game 1 from the 16 April 2018: score in blocks, then unicode SOON, then linedrawing to illustrate NEXT piece
  2. During Game 1 on the 19 April: unicode SOON replaced with unicode F-FWD
  3. During Game 5 on the 22 May: Literal "Next", then braille indicator of next piece. Then literal "Score" in and score in plain text
  4. During Game 6 on 5 June: "Next" and score moved to right of board. Next illustrated with emoji same as board
  5. During Game 18 on 10 Feb: "The bot will now tweet a rendition of the game grid with filled rows marked as disappearing, with the score benefit shown." - https://twitter.com/emojitetra/status/1094340439849615360

Notable events

Empty Board Bonus

Most are with doubles scoring 1250. Exceptions noted

Awesome moves

For those times we manage to fill in overhangs, T-spins and I-spins

    • TODO

Longest activity on the same piece

(todo: backfill this with any other triple-spins)

Start date/tweet Game Poll count Rotations (spins) Notes
28 April 2018 13 T piece: Down, Rotate, Rotate, Rotate, Left, Down, Right, Right, Down, Down, Down, Down, Plummet (note: plummet-after-down option not yet available in game)
22 May 2018 14 J piece: Right, Right, Down, Rotate, Left, Left, Down, Down Down, Left, Left, Rotate, Rotate, Plummet
18 July 2018 15 11 (2.75) L piece
18 Aug 2018 15 11 (2.75) L piece
3 Dec 2018 15 15 12 (3) J piece
15 Dec 2018 15 16 13 (3.25) J piece
30 Sept 2018 15 17 13 (3.25) T piece
25 Sept 2018 15 17 14 (3.5) J piece
26 March 2019 21 19 16 (4) T piece: Rotate(x16), Left, Down, Plummet
27 May 2018 25 19 16 (4) L piece: Rotate(x16), Right, Right, Plummet
29 Dec 2018 15 20 18 (4.5) L piece

Great Escapes

When The End Is Nigh - and then it wasn't. This is the list of times we've filled the board to 45 or more static pieces, and subsequently recovered to under 30. "Saved to" is measured as the board fill after clearing lines, to the point where two pieces in a row begin to stack again.

date/tweet Game Saved from Saved to Notes
15 May 2018 45 18 Stumbled from 45 to 35 to 43 to 33 to 42 before clearing to 18
21 May 2018 46 3
8 June 2018 45 19
21 June 2018 48 29 29 according to the rules laid out above, but we made it down to 16 before the next escape only a few days later
23 June 2018 48 15 Stumbled from 48 to 31 to 39 to 15
24 July 2018 49 15
5 Sept 2018 48 not a real save - we saved to 31 and then crashed and died 12 hours later
4 Oct 2018 47 5 achieved 46 to 5 with sequential pieces
5 Nov 2018 48 28 actually made it down to 19 before the next day's escape
6 Nov 2018 46 9 46 to 9 in three sequential pieces
13 Jan 2019 50 1 bounced from 50 down to 44 up to 49 over 6 hours, before the save
11 March 2019 Game20 52 22 We had a 25piece I/L drought, and 21piece I/L/S drought. Both record breaking. 12 non-scoring pieces in a row (an equal record)
25 May 2019 Game 25 45 21 No clearing due to RNG, but we built clean on the edge. Then an I to clear four (simultaneously making this the fastest game to 19000 score)
11 June 2019 Game 25 46 We had a disproportionately large run of O leading to a build up of holes


This magnificent I handling in Game 23 shows how skillful the hivemind can be - when the non-obvious move is sufficiently spruiked into awareness. https://twitter.com/EmojiTetra/status/1123573444400914434

Scoring rate

Scoring rate vs total

Real world analysis

There is reasonable correlation with better scoring rates, and better scores. Indeed, as of writing (G24 just begun), there are 11 games with a rate above 1100/day - these have a min score of 11925 (avg: 32580), whilst 12 games below that rate have a maximum at merely 13850 (avg: 6373)

Within reason, this seems logical. Smart play is required for long games, but also improves on scoring rate by seeing non-obvious combinations of the current+next piece to score doubles and triples, where more naive play (as the hive often does) will seek singles only. Conversely, simple "just get singles" non-aggressive play will often result in situations where, thanks to a run of awkward pieces, the board gets messy and the hive simply hasn't learnt and practiced the skills to navigate out.

Scoring faster means playing smarter. Playing smarter means playing longer and getting bigger totals.

Hypothetical maximums

Hypothetically, the maximum scoring rate with ideal pieces is a board-emptying tetra. 2000 points every 7th piece. I believe the fastest this could be done is with 6 "O" and then one "I" bar. This would be nearly 7579 points per day - or over 6.3x our normal scoring rate of approx 1200points/day

At our normal randomised piece rate of placement, 2000/7pieces would still be approx 4x our normal scoring rate. But that is also impossible in practice, since it relies on us being able to build a 6wide 4high tower every 6 pieces, and then have an I to score the emptying tetra every 7th piece. In practice of course, we only get an I as the 7th piece 1/7th of the time. We also cannot get an empty board every 7th piece, even if we had prescient knowledge of the future. However, I think it should be possible to get approx 2x our native scoring rate from smart piece placement alone. How? By targetting the empty board bonus via full clears as the default tactic. This should be safe as it's a tactic which inherently means we keep the board low, we have a regular "seventh piece" cycle to play to, and if we build clean, then we should get plenty of doubles and triples and occasional tetras the rest of the time.

Safer AND faster scoring rate. What's not to love?

Without a way to play solo and test tactics, this is theoretical only. (A javascript implementation to allow faster one-person play would be great as a practice/education tool. Could even feed it the official game piece order for direct comparisons with the hive?)

My Terminology

(note: this is what I endeavour to use, and while I encourage others to use, it is in no way formal or endorsed. Most of it is what is commonly used already)

  • board: play area (7x11 squares)
  • column: a vertical sequence on the board from top to bottom (11 spots)
  • line/row: a horizontal sequence on the board from left to right (7 spots)
  • clear - to clear some rows (see also: full clear - to clear ALL rows)
  • single/double/triple: to clear 1/2/3 line(s)
  • tetra/quad/tetris: to clear 4 lines
  • electorate/collective/crowd/hive: everyone who votes
  • hole: an unfilled space that is surrounded on all sides and above
  • overhang/half-hole: an unfilled spare that is covered at top, but open to the side
    • some overhangs can be underfilled by a side slide. But not all
  • clean - board without holes. as in "the board is clean" and "this is a clean drop"
    • question: is a half-hole a clean board?
  • dirty - opposite of clean: a board with a hole. "the board is dirty". "this is a dirty drop"
  • silhouette/skyline: the shape of the top surface
  • well: a deep part pf the skyline requiring a J/L or I to fill.
    • May also be called a hole. Esp I-hole
  • empty board: nothing on the board. (a perfectly flat skyline, as per the start of a game)
    • I prefer 'empty' to avoid possible ambiguity with clear or clean
  • full clear - the move that achieves an empty board
  • fossilised - to refer to how long a row has remained unchanged
  • momentary hole - a hole which is created with the placement of one piece, with the knowledge that it will be uncovered with the very next (already known!) piece. May also be used for cases where the hole will only appear to exist but the uncovering will be with the current piece.




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