Darkness 2011-04-13 12:00:00 UTC
Twilight 2011-04-14 12:00:00 UTC
Daylight 2011-04-15 12:00:00 UTC
Finish 2011-04-20 12:00:00 UTC

Crossword - Statistics

This page was generated on 21-Apr-2011 at 3:20 PM ET.

1000 Node Challenge

These are the best entries submitted before 19-Apr-2011 16:00:00 that are less than or equal to 1000 nodes in length.

 scoreresulttimedatelengthtitle, author
#1 17795.90 7116831 65.47 Tue 15:59 978CrossCat7, Sergey Y.
#2 17800.60 7118963 54.41 Tue 15:54 978CrossCat5, Sergey Y.
#3 17817.70 7125888 5.97 Tue 15:44 986CrossCat1, Sergey Y.
#4 17818.20 7126893 4.53 Tue 15:45 992CrossCat3, Sergey Y.
#5 17825.40 7129751 4.51 Tue 15:54 983The Last Monkey in 1000 nodes, Fel
#6 17828.30 7130925 4.50 Tue 15:45 988CrossCat2, Sergey Y.
#7 17831.50 7132208 4.52 Tue 15:47 1000Perfect 1000, Amitabh Verma
#8 17838.30 7133725 4.44 Tue 15:58 1000The Last Monkey in 1000 nodes, Fel
#9 17839.30 7133725 4.64 Tue 15:56 1000The Last Monkey in 1000 nodes, Fel
#10 17840.90 7134374 4.51 Tue 15:56 1000The Last Monkey in 1000 nodes, Fel
#11 17959.10 7182469 14.65 Tue 15:51 950Dropping In, Mike Russell
#12 17969.80 7186491 63.74 Tue 15:46 950CrossCat4, Sergey Y.
#13 17970.20 7186942 5.95 Tue 15:52 895Dropping In 2, Mike Russell
#14 17970.20 7186942 6.12 Tue 15:54 854Dropping In 3, Mike Russell
#15 17972.30 7187785 5.88 Tue 15:38 888KNodes21-rev, Amitabh Verma
#16 17975.90 7189149 7.71 Tue 15:46 999focus on result (kN3), Albert
#17 17976.30 7189406 6.00 Tue 15:31 854KNode - edit, Amitabh Verma
#18 17976.40 7189406 6.03 Mon 23:03 895N1000- sorted2, Amitabh Verma
#19 17976.40 7189406 5.88 Tue 00:26 893KNodes11, Alan Chalker
#20 17976.40 7189406 6.00 Tue 00:29 899KNodes12, Alan Chalker
#21 17976.40 7189406 6.12 Tue 00:29 899KNodes13, Alan Chalker
#22 17976.40 7189406 6.02 Tue 01:04 903KNodes15, Alan Chalker
#23 17976.40 7189406 5.90 Tue 01:08 907KNodes16, Alan Chalker
#24 17976.40 7189406 6.16 Tue 05:22 864KNodes20, Alan Chalker
#25 17976.40 7189406 5.86 Tue 05:36 864KNodes21, Alan Chalker

Saturday Leap

This listing shows how much each entry that took the lead on Saturday improved on the previous top score.

changetimetitle, author
195.700002:02Crazy Ivan on Kangaroo Jack, Amitabh Verma
111.100001:14TLM - Score break through, Fel
77.900000:53Shake it up !, Amitabh Verma
1.800001:22Score break through, Alex P.
0.900016:59Simply !, Amitabh Verma
0.900022:15good night - 7, Alex P.
0.300003:08KJ, Amitabh Verma
0.300001:15TLM - Score break through, Fel
0.100009:09not worth, Alex P.
0.100012:25Lengthy, the cyclist
0.100019:24maybe, Oli
0.000001:50break the 17, Alex P.
0.000004:39KJ - minor chang not worth it, Sunke
0.000014:41ciao f, Alex P.
0.000017:58Simple Simply !, Amitabh Verma
0.000019:39YES, Alex P.
0.000022:38good night -4, Alex P.
0.000022:58Gute Nacht, Oli

Best Per Phase

The top 25 contestant's best entry in each phase.

Top contestants during darkness

1Alfonso Nieto-CastanonThu 11:09180977233714 (cyc: 22, node: 1044)3
2Martin FThu 15:03182567297272 (cyc: 22, node: 774)6
3Seth KosowskyThu 15:10182837305724 (cyc: 26, node: 2581)28
4VictoriaThu 14:47185557418935 (cyc: 17, node: 485)10
5James WhiteThu 14:37185837433330 (cyc: 5, node: 204)1
6Nicholas HoweWed 19:50186637465062 (cyc: 6, node: 326)5
7Robert MacraeThu 13:57187667496313 (cyc: 34, node: 957)3
8Martin ReesThu 15:59194947797499 (cyc: 9, node: 644)44
9Sergey Y.Wed 23:54198567931992 (cyc: 30, node: 905)81
10Alex P.Wed 23:20201498057024 (cyc: 11, node: 410)82
11Alan ChalkerThu 14:17202748100389 (cyc: 32, node: 871)8
12lcomeThu 06:58203378134903 (cyc: 8, node: 269)9
13F GThu 15:52206238243590 (cyc: 23, node: 859)5
14Jirachai GetpreecharsawasThu 04:48206948277577 (cyc: 8, node: 372)1
15FelWed 21:53207278290463 (cyc: 6, node: 514)2
16Abhisek UkilThu 14:45207658303945 (cyc: 14, node: 528)58
17the cyclistThu 15:28208078302695 (cyc: 59, node: 1064)13
18Andreas BonelliThu 08:07210658425805 (cyc: 8, node: 328)5
19Daniel EWed 18:21211048440949 (cyc: 11, node: 234)7
20Andre FioravantiWed 17:11211208448066 (cyc: 5, node: 155)0
21Michael BindschadlerThu 07:29212198487644 (cyc: 8, node: 350)5
22ThobiasWed 22:13214598583344 (cyc: 9, node: 206)1
23PerThu 15:54215208314332 (cyc: 19, node: 846)127
24Tristrom CookeThu 01:58215698627441 (cyc: 8, node: 320)3
25LucyThu 02:16216528657557 (cyc: 18, node: 588)22

Top contestants during twilight

1Nicholas HoweFri 06:28177637091914 (cyc: 41, node: 2340)47
2James WhiteFri 13:03179287169846 (cyc: 12, node: 1184)8
3VictoriaThu 20:21180897232304 (cyc: 18, node: 571)9
4Markus BuehrenFri 15:46182027271581 (cyc: 32, node: 872)1
5Martin FFri 15:55182037273853 (cyc: 27, node: 1047)7
6Martin ReesFri 11:27182107283904 (cyc: 7, node: 501)16
7Seth KosowskyThu 16:24182207280294 (cyc: 26, node: 2630)36
8OliThu 19:31183057321721 (cyc: 8, node: 536)1
9Andreas BonelliFri 15:10184577382376 (cyc: 9, node: 754)41
10Alan ChalkerFri 14:21187597496399 (cyc: 27, node: 804)36
11Gerbert MyburghFri 06:55188367532940 (cyc: 13, node: 394)17
12GuangFri 02:41191647665625 (cyc: 7, node: 188)5
13AlbertFri 00:00191847668905 (cyc: 21, node: 659)18
14yoga harimanFri 03:18192117684388 (cyc: 4, node: 181)14
15Ram-Li-CzechFri 15:38195727823958 (cyc: 13, node: 1094)86
16LucyFri 12:23204858194065 (cyc: 6, node: 287)1
17the cyclistThu 20:53205138184570 (cyc: 60, node: 1051)12
18FelThu 17:52205758229838 (cyc: 8, node: 677)11
19CletusFri 04:13206198247142 (cyc: 11, node: 397)5
20F GThu 16:00206238243800 (cyc: 23, node: 865)6
21nathan qFri 06:42206638264970 (cyc: 7, node: 354)31
22Tristrom CookeFri 02:02206978119677 (cyc: 27, node: 1446)121
23M SFri 12:32207358292730 (cyc: 13, node: 371)4
24Michael BindschadlerFri 06:05207488298041 (cyc: 12, node: 431)5
25Corbin HollandThu 23:15211268442600 (cyc: 7, node: 506)94

Contributions in Daylight

This listing shows how much each contestant improved on the top score over the course of the day.


0.400Abhisek Ukil
0.40019:58New Day Brings New Leader
0.00020:35Follow This Now !
0.00020:54Pori comes
0.300Alan Chalker
0.300Amitabh Verma
0.30021:52Weekend Begins !
0.00019:25TLM - Just to appear in the leaders
0.00019:33TLM - Just to appear in the leaders
0.10019:52TLM - Just to appear in the leaders
0.10020:24TLM - Just to appear in the leaders
0.000Alex P.
0.00022:29ten thousand miles away
0.00023:08seven seconds


274.800Amitabh Verma
77.90000:53Shake it up !
195.70002:02Crazy Ivan on Kangaroo Jack
0.90016:59Simply !
0.00017:58Simple Simply !
111.10001:14TLM - Score break through
0.30001:15TLM - Score break through
2.800Alex P.
1.80001:22Score break through
0.00001:50break the 17
0.10009:09not worth
0.00014:41ciao f
0.90022:15good night - 7
0.00022:38good night -4
0.100the cyclist
0.00022:58Gute Nacht
0.00004:39KJ - minor chang not worth it


58.60000:05TLM - Dead End Strategies
1.20000:15TLM - Dead End Strategies
0.00000:27TLM - Dead End Strategies
0.00000:58TLM - Dead End Strategies
11.30015:20TLM - Dead End Strategies
1.40015:21TLM - Dead End Strategies
24.100Amitabh Verma
14.50000:05Jor Laga K...
0.10001:16Speedy Variant
0.20003:48Why 0 ?
0.00016:04Cyclomatix - Speedy
8.30023:23Test Order
0.20023:37New Test Order
0.10023:48New Order Spin
0.00023:59New 1
5.600Abhisek Ukil
0.10003:58Pure morning
0.00004:02Day's dawning
0.00004:11Skin's crawling
0.10015:13If only I could wait
0.000Alex P.
0.00021:19stochern im CHAOS
0.000Alan Chalker


3.70009:19Take a chance
2.20009:41Sweet 14
1.60009:42Sweet 14 Speedy
0.00010:07Less is more
1.20010:08Sweet Randomness
0.20010:22Shadow of the day
0.00010:34Street Spirit
0.10010:57World spins madly on
0.10011:47The essential
0.00014:42Illusion is Life
0.50023:18I think I'm lost
0.500Gwendolyn Fischer
0.30008:39Playing eight ball is stupid
0.20008:47Maybe I should try darts
0.00014:33Life is an illusion
0.100Alan Chalker
0.000the cyclist
0.00022:09Something is rot90 in Denmark
0.000Franck Dernoncourt
0.000Alex P.


4.20002:00bad seed
0.00002:59bad seed < double
0.00016:36a little less
0.10017:25simplify a little
0.10018:06self retweak
1.80023:52he is illegal in 17 US states and he blinks vertically
0.80023:53he has no understanding of queuing
0.80012:34Fusion 4
0.100Alan Chalker


109.400Nicholas Howe
54.40015:43James and the Giant Peach
54.90015:44Valles Marinaris
0.10015:49Rapid Weight Loss May Be Harmful
0.70008:32Baby steps
10.00008:55Now that I'm out
0.30009:26No assumptions 2
10.40010:37No redundancy
6.50013:31Debugged 2
7.40013:41That's what I'm talking about
0.10010:56SV Really
2.70009:40twelveth of wang
2.400Alan Chalker
2.40000:51Tis the night before endgame 1
2.00000:12his heart ticks like a watch and he is confused by stairs
0.30002:10oh rand states
0.200David Smith
0.20014:34let's see 3
0.100Sebastian Ullmann
0.100Nathan Greco
0.10004:44maybe not
0.000Amitabh Verma

Best Result

These are the first entries to break through each result barrier, ignoring time.

resulttimecputitle, author
11139966Wed 16:130.01Second, Alan Chalker
11128679Wed 16:340.01one word, Michael Bindschadler
8448066Wed 17:110.46Abandoned places, Andre Fioravanti
7943530Wed 18:100.59WordList 02, Robert Macrae
7691879Wed 19:032.82Miser Willy, Nicholas Howe
7573039Wed 19:150.58WordList 04, Robert Macrae
7465062Wed 19:504.75Clever Willy II, Nicholas Howe
7463558Thu 04:0610.90sausage links, Seth Kosowsky
7329493Thu 05:1615.58sausage links may I take your order, Seth Kosowsky
7243178Thu 09:515.29try01, Alfonso Nieto-Castanon
7233714Thu 11:093.01tryagain01, Alfonso Nieto-Castanon
7232304Thu 20:219.36Square Star Sky, Victoria
7127153Fri 04:0348.17Star Crossed 8, Nicholas Howe
7096047Fri 04:1645.74Star Crossed 9, Nicholas Howe
7091914Fri 06:2847.45Star Crossed X, Nicholas Howe
7091409Fri 18:0659.65TLM - First score break through in daylight, Fel
7091206Fri 19:5856.10New Day Brings New Leader, Abhisek Ukil
7091202Fri 20:2454.76TLM - Just to appear in the leaders, Fel
7091100Fri 21:5252.65Weekend Begins !, Amitabh Verma
7037621Sat 00:53103.52Shake it up !, Amitabh Verma
7014590Sat 01:1461.77TLM - Score break through, Fel
7013879Sat 01:2254.10Score break through, Alex P.
6934951Sat 02:0262.15Crazy Ivan on Kangaroo Jack, Amitabh Verma
6934895Sat 16:5958.15Simply !, Amitabh Verma
6934559Sat 22:1555.89good night - 7, Alex P.
6934089Sun 00:0255.54Pori-3, Abhisek Ukil
6911626Sun 00:0557.56TLM - Dead End Strategies, Fel
6911156Sun 00:1557.12TLM - Dead End Strategies, Fel
6909373Sun 00:2957.10Pori-10, Abhisek Ukil
6909266Sun 09:4257.02Dia 5, Alex P.
6906055Sun 23:2360.75Test Order, Amitabh Verma
6905914Mon 08:3949.45Playing eight ball is stupid, Gwendolyn Fischer
6905756Mon 08:4758.67Maybe I should try darts, Gwendolyn Fischer
6903458Mon 09:1974.81Take a chance, Oli
6901897Mon 09:4179.74Sweet 14, Oli
6901852Mon 19:5452.56more credits, Alex P.
6901774Mon 20:1554.51limit search 1200, Alex P.
6901579Mon 23:1855.71I think I'm lost, Oli
6901127Mon 23:4392.99welcome, Albert
6899971Tue 02:0048.87bad seed, Albert
6899514Tue 02:1666.80Bad Apple II, Albert
6897650Tue 13:3082.76Longer, Oli
6897452Tue 15:25103.20way too slow, Albert
6896607Wed 00:5157.02Tis the night before endgame 1, Alan Chalker
6896380Wed 02:1061.42oh rand states, Albert
6896045Wed 08:3241.02Baby steps, Volkan
6890500Wed 08:5578.99Now that I'm out, Volkan
6887140Wed 10:2972.87Doops, Oli
6883402Wed 10:3763.22No redundancy, Volkan
6880777Wed 10:39139.31No redundancy 2, Volkan
6877819Wed 12:4894.54bsx2000, Sebastian Ullmann
6877358Wed 14:3460.52let's see 3, David Smith
6852909Wed 15:4342.22James and the Giant Peach, Nicholas Howe
6807200Wed 15:44117.48Faster - no ram_li_czech_2, Ram-Li-Czech

All the Leaders

Here is a chronological list of the entries that held the number one spot, listed with the date submitted, the percent improvement in score, and the length of time each spent on top.

contestanttitledate% imphours
1Alan ChalkerSecondWed 16:13Inf%0.34
2Michael Bindschadlerone wordWed 16:340.10%0.62
3Andre FioravantiAbandoned placesWed 17:1124.09%0.99
4Robert MacraeWordList 02Wed 18:105.97%0.88
5Nicholas HoweMiser WillyWed 19:033.17%0.20
6Robert MacraeWordList 04Wed 19:151.54%0.58
7Nicholas HoweClever Willy IIWed 19:501.43%9.44
8Seth Kosowskysausage links may I take your orderThu 05:161.74%4.58
9Alfonso Nieto-Castanontry01Thu 09:511.19%1.30
10Alfonso Nieto-Castanontryagain01Thu 11:090.13%9.20
11VictoriaSquare Star SkyThu 20:210.04%7.70
12Nicholas HoweStar Crossed 8Fri 04:031.37%0.23
13Nicholas HoweStar Crossed 9Fri 04:160.41%2.19
14Nicholas HoweStar Crossed XFri 06:280.03%9.82
15Alan ChalkerDaylightStart1Fri 16:170.00%2.01
16Alan ChalkerDaylightStart8Fri 18:180.00%0.04
17Alan ChalkerDaylightStart9Fri 18:200.00%0.68
18Alan ChalkerDaylightStart11Fri 19:010.00%0.01
19Alan ChalkerDaylightStart12Fri 19:010.00%0.02
20Alan ChalkerDaylightStart14Fri 19:020.00%0.33
21Alan ChalkerDaylightStart16Fri 19:220.00%0.04
22FelTLM - Just to appear in the leadersFri 19:250.00%0.14
23FelTLM - Just to appear in the leadersFri 19:330.00%0.32
24FelTLM - Just to appear in the leadersFri 19:520.00%0.10
25Abhisek UkilNew Day Brings New LeaderFri 19:580.00%0.44
26FelTLM - Just to appear in the leadersFri 20:240.00%0.17
27Abhisek UkilFollow This Now !Fri 20:350.00%0.33
28Abhisek UkilPori comesFri 20:540.00%0.07
29Alan ChalkerDaylightStart37Fri 20:580.00%0.02
30VictoriaDaylightFri 20:590.00%0.88
31Amitabh VermaWeekend Begins !Fri 21:520.00%0.61
32Alex P.ten thousand miles awayFri 22:290.00%0.65
33Alex P.seven secondsFri 23:080.00%0.02
34Alex P.p3Fri 23:090.00%1.74
35Amitabh VermaShake it up !Sat 00:530.44%0.34
36FelTLM - Score break throughSat 01:140.63%0.02
37FelTLM - Score break throughSat 01:150.00%0.12
38Alex P.Score break throughSat 01:220.01%0.46
39Alex P.break the 17Sat 01:500.00%0.19
40Amitabh VermaCrazy Ivan on Kangaroo JackSat 02:021.11%1.11
41Amitabh VermaKJSat 03:080.00%1.51
42SunkeKJ - minor chang not worth itSat 04:390.00%4.50
43Alex P.not worthSat 09:090.00%3.26
44the cyclistLengthySat 12:250.00%2.28
45Alex P.ciao fSat 14:410.00%2.30
46Amitabh VermaSimply !Sat 16:590.01%0.98
47Amitabh VermaSimple Simply !Sat 17:580.00%1.43
48OlimaybeSat 19:240.00%0.26
49Alex P.YESSat 19:390.00%2.60
50Alex P.good night - 7Sat 22:150.01%0.39
51Alex P.good night -4Sat 22:380.00%0.32
52OliGute NachtSat 22:580.00%1.08
53Abhisek UkilPori-3Sun 00:020.01%0.04
54Amitabh VermaJor Laga K...Sun 00:050.08%0.01
55FelTLM - Dead End StrategiesSun 00:050.34%0.15
56FelTLM - Dead End StrategiesSun 00:150.01%0.21
57FelTLM - Dead End StrategiesSun 00:270.00%0.02
58Abhisek UkilPori-10Sun 00:290.03%0.20
59Oli???Sun 00:410.00%0.30
60FelTLM - Dead End StrategiesSun 00:580.00%0.01
61Amitabh VermaTweakomaticSun 00:590.00%0.28
62Amitabh VermaSpeedy VariantSun 01:160.00%2.53
63Amitabh VermaWhy 0 ?Sun 03:480.00%0.16
64OliPure morningSun 03:580.00%0.07
65OliDay's dawningSun 04:020.00%0.16
66OliSkin's crawlingSun 04:110.00%10.69
67Alan ChalkerSundayPush21Sun 14:530.00%0.34
68OliIf only I could waitSun 15:130.00%0.12
69FelTLM - Dead End StrategiesSun 15:200.07%0.01
70FelTLM - Dead End StrategiesSun 15:210.01%0.20
71OliCyclomatixSun 15:330.00%0.51
72Amitabh VermaCyclomatix - SpeedySun 16:040.00%5.25
73Alex P.stochern im CHAOSSun 21:190.00%2.08
74Amitabh VermaTest OrderSun 23:230.05%0.23
75Amitabh VermaNew Test OrderSun 23:370.00%0.19
76Amitabh VermaNew Order SpinSun 23:480.00%0.18
77Amitabh VermaNew 1Sun 23:590.00%8.66
78Gwendolyn FischerPlaying eight ball is stupidMon 08:390.00%0.14
79Gwendolyn FischerMaybe I should try dartsMon 08:470.00%0.53
80OliTake a chanceMon 09:190.02%0.31
81OliHelloMon 09:370.00%0.07
82OliSweet 14Mon 09:410.01%0.02
83OliSweet 14 SpeedyMon 09:420.01%0.42
84OliLess is moreMon 10:070.00%0.00
85OliSweet RandomnessMon 10:080.01%0.23
86OliShadow of the dayMon 10:220.00%0.20
87OliStreet SpiritMon 10:340.00%0.39
88OliWorld spins madly onMon 10:570.00%0.83
89OliThe essentialMon 11:470.00%1.48
90Franck DernoncourtaMon 13:150.00%0.84
91Alan ChalkerMondaysHere18Mon 14:060.00%0.13
92OliRandomMon 14:140.00%0.32
93Gwendolyn FischerLife is an illusionMon 14:330.00%0.15
94OliIllusion is LifeMon 14:420.00%0.75
95Alan ChalkerRandFun10Mon 15:270.00%3.61
96Alex P.?Mon 19:040.00%3.08
97the cyclistSomething is rot90 in DenmarkMon 22:090.00%1.15
98OliI think I'm lostMon 23:180.00%2.70
99Albertbad seedTue 02:000.02%0.98
100Albertbad seed < doubleTue 02:590.00%9.58
101OliFusion 4Tue 12:340.00%0.30
102Alan ChalkerMorningAgain1Tue 12:520.00%3.75
103Alberta little lessTue 16:360.00%0.81
104Albertsimplify a littleTue 17:250.00%0.60
105Satoshis1Tue 18:010.00%0.09
106Albertself retweakTue 18:060.00%5.76
107Alberthe is illegal in 17 US states and he blinks verticallyTue 23:520.01%0.02
108Alberthe has no understanding of queuingTue 23:530.00%0.32
109Alberthis heart ticks like a watch and he is confused by stairsWed 00:120.01%0.66
110Alan ChalkerTis the night before endgame 1Wed 00:510.01%0.64
111Nathan Greco??Wed 01:290.00%0.67
112Albertoh rand statesWed 02:100.00%0.12
113Nathan Greco?Wed 02:160.00%2.46
114Nathan Grecomaybe notWed 04:440.00%3.80
115VolkanBaby stepsWed 08:320.00%0.38
116VolkanNow that I'm outWed 08:550.06%0.52
117VolkanNo assumptions 2Wed 09:260.00%0.23
118wangtwelveth of wangWed 09:400.02%0.82
119OliDoopsWed 10:290.04%0.13
120VolkanNo redundancyWed 10:370.06%0.30
121OliSV ReallyWed 10:560.00%0.75
122Sebastian UllmannshiftdimWed 11:400.00%0.26
123Sebastian UllmannbsxfunWed 11:560.00%1.58
124VolkanDebugged 2Wed 13:310.04%0.17
125VolkanThat's what I'm talking aboutWed 13:410.04%0.69
126OliBreakWed 14:220.00%0.20
127David Smithlet's see 3Wed 14:340.00%0.61
128Amitabh VermaSneakerWed 15:110.00%0.53
129Nicholas HoweJames and the Giant PeachWed 15:430.32%0.03
130Nicholas HoweValles MarinarisWed 15:440.32%0.08
131Nicholas HoweRapid Weight Loss May Be HarmfulWed 15:490.00%23.51


This is the most useful diagram for visualizing the contest. It shows the dramatic improvements that occur over time. Each passing entry is a dot, with its submission time on the x-axis and it's score on the y-axis. Since a lower score is better, the dots push down further as time goes on. All entries that took the lead are colored red and the red lines marks the best score at any time. The sample entry is the leftmost red dot and the leader is the last red dot in the lower right.

Some of the leading entries are circled and labeled with the author's name. They show who was making the biggest improvements in score (represented in this plot as a vertical drop in the red line) at any point in the contest.

The improvement in score happens over a huge dynamic range. Early in the contest, it is easy to make big improvements in the score. As the algorithms get better, improvements become increasingly difficult. To show this, we normalize the scores so the best (smallest) score is 1 and the worst score is some power of 10. Then we plot them on a logarithmic scale. This exaggerates the improvements at the end of the contest. By increasing the number of decades we spread the scores over, we increasingly exaggerate the smaller improvements made at the end of the contest.

results vs. cpu time

One of the interesting aspects of the contest is that entries needed to minimize two things at once. Getting the best possible answer must be weighed against the time an entry takes to run. The entry's score is a combination of these two factors. Plotting these two against each other yields a very different picture of the contest.

The leader line is shown in red again in this picture. The gray contours show lines of constant score. In general, the best score is somewhere along the lower-left frontier of shortest time and lowest results. Algorithmic improvements tend to move down and to the right, and they are followed by tweaking battles in which the new algorithm claws its way back down the time axis.

Submissions Over Time

This area plot shows how the total number of entries grows. The green area represents the entries that passed the test suite, and the red area shows those that failed.

Activity by Hour

Each bar represents an hour's worth of entries. The contest has three major phases. The first day is in "darkness", where contestants can submit entries but they can't see any of the entries or their scores. To win this phase, an entry must be general and robust. The second day is "twilight", where we show the scores but not yet the code. This allows contestants to develop their algorithm without anyone else being able to leverage their ideas.

On the histogram, the darkness and twilight phases are the two boxes on the left. The other boxes and vertical gray lines call out other mid-contest challenges.

Participants per Day

We know that one participant may submit hundreds of entries. Let's look at the number of unique participants on each day of the contest.

Most active participants

This bar plot shows the number of entries submitted by our most prolific authors.

Entry length

This plot shows how many characters of code are in each of the leading entries. In regions where you see entries of more or less the same length there are very few differences from one entry to the next. In other places you can see the code getting shorter or longer. The density of the lines also shows how often the lead is changing. It's most impressive when shorter code takes the top spot, either by pruning unneeded computation or by introducing new algorithms. The red line at the top shows the cap on entry length.

Percent improvement

This is a plot of the percent improvement generated by each new leader relative to the previous leader. This lets us see who is responsible for the biggest changes over the contest. The upper frontier of this plot is a sort of hall of fame, and someone whose name appears there more than once managed to make several significant improvements to the score.

Improvements by day

Highlighting all the entries submitted on each day in red shows shows how the overall progression down and to the left. A black circle indicates the leader at the end of each day.