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CoG 2022 results by map

I excluded BetaStar from the analysis, since it contributed no information. Everybody else’s winning rate is reduced compared to the official results, because they don’t have all the meaningless free wins.

The map pool is: (2)Benzene, (2)Eclipse, (2)Match Point, (3)Neo Aztec, (3)Neo Sylphid, (3)Outsider, (4)Circuit Breakers, (4)Fighting Spirit, (4)Polypoid. That’s three maps of each size.

overallBenzenEclipsMatchPNeoAztNeoSylOutsidCircuiFightiPolypo
#1 BananaBrain82.96%77%87%86%88%86%83%81%77%80%
#2 PurpleWave71.11%69%73%70%65%72%72%71%75%73%
#3 Stardust68.89%76%65%65%65%65%70%74%67%72%
#4 McRave63.37%68%64%68%64%62%57%58%67%61%
#5 Microwave37.63%38%39%40%40%38%40%37%32%34%
#6 XIAOYI24.63%21%20%21%26%25%27%28%28%26%
#7 CUNYBot1.41%1%3%0%2%1%1%1%3%2%

Results are nice and even for every bot. Averaged out over all opponents, the map did not make a great difference for any bot.

Against specific opponents, the map did matter. I included the count of wins/games in each cell so you can see how much data there is. CoG ran far more games this year than last, so it’s much easier to trust the results at the level of individual cells in the tables.

BananaBrainoverallBenzenEclipsMatchPNeoAztNeoSylOutsidCircuiFightiPolypo
PurpleWave357/450
79%
35/50
70%
42/50
84%
43/50
86%
47/50
94%
44/50
88%
44/50
88%
31/50
62%
35/50
70%
36/50
72%
Stardust269/450
60%
16/50
32%
44/50
88%
34/50
68%
33/50
66%
32/50
64%
27/50
54%
37/50
74%
22/50
44%
24/50
48%
McRave312/450
69%
37/50
74%
33/50
66%
35/50
70%
39/50
78%
41/50
82%
29/50
58%
34/50
68%
29/50
58%
35/50
70%
Microwave404/450
90%
43/50
86%
42/50
84%
47/50
94%
45/50
90%
42/50
84%
49/50
98%
42/50
84%
48/50
96%
46/50
92%
XIAOYI450/450
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
CUNYBot448/450
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
48/50
96%
50/50
100%
overall82.96%77%87%86%88%86%83%81%77%80%

BananaBrain’s skill against Stardust depends strongly on the map.

PurpleWaveoverallBenzenEclipsMatchPNeoAztNeoSylOutsidCircuiFightiPolypo
BananaBrain93/450
21%
15/50
30%
8/50
16%
7/50
14%
3/50
6%
6/50
12%
6/50
12%
19/50
38%
15/50
30%
14/50
28%
Stardust376/450
84%
31/50
62%
47/50
94%
40/50
80%
47/50
94%
46/50
92%
48/50
96%
31/50
62%
44/50
88%
42/50
84%
McRave247/450
55%
20/50
40%
23/50
46%
26/50
52%
26/50
52%
34/50
68%
35/50
70%
25/50
50%
31/50
62%
27/50
54%
Microwave331/450
74%
42/50
84%
44/50
88%
41/50
82%
24/50
48%
31/50
62%
29/50
58%
40/50
80%
40/50
80%
40/50
80%
XIAOYI438/450
97%
49/50
98%
50/50
100%
45/50
90%
49/50
98%
50/50
100%
49/50
98%
48/50
96%
49/50
98%
49/50
98%
CUNYBot435/450
97%
49/50
98%
47/50
94%
50/50
100%
47/50
94%
49/50
98%
49/50
98%
49/50
98%
47/50
94%
48/50
96%
overall71.11%69%73%70%65%72%72%71%75%73%

PurpleWave’s results against Stardust also vary strongly by map. The cause is presumably Stardust: In PvP games, its strategy is much better suited for some maps than others. But BananaBrain and PurpleWave differ in their ability to exploit the weaknesses.

StardustoverallBenzenEclipsMatchPNeoAztNeoSylOutsidCircuiFightiPolypo
BananaBrain181/450
40%
34/50
68%
6/50
12%
16/50
32%
17/50
34%
18/50
36%
23/50
46%
13/50
26%
28/50
56%
26/50
52%
PurpleWave74/450
16%
19/50
38%
3/50
6%
10/50
20%
3/50
6%
4/50
8%
2/50
4%
19/50
38%
6/50
12%
8/50
16%
McRave311/450
69%
25/50
50%
43/50
86%
29/50
58%
35/50
70%
29/50
58%
45/50
90%
41/50
82%
27/50
54%
37/50
74%
Microwave404/450
90%
50/50
100%
43/50
86%
41/50
82%
44/50
88%
47/50
94%
41/50
82%
48/50
96%
44/50
88%
46/50
92%
XIAOYI442/450
98%
50/50
100%
50/50
100%
50/50
100%
47/50
94%
48/50
96%
50/50
100%
50/50
100%
47/50
94%
50/50
100%
CUNYBot448/450
100%
50/50
100%
50/50
100%
50/50
100%
49/50
98%
49/50
98%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
overall68.89%76%65%65%65%65%70%74%67%72%

And again, Stardust varies strongly versus McRave with its mutalisks. It may have to do with hard-to-see details like Stardust’s building placement on each map, or the timing of Stardust’s fixed strategy. The remaining opponents are not strong enough to stress Stardust, so results don’t vary as much.

McRaveoverallBenzenEclipsMatchPNeoAztNeoSylOutsidCircuiFightiPolypo
BananaBrain138/450
31%
13/50
26%
17/50
34%
15/50
30%
11/50
22%
9/50
18%
21/50
42%
16/50
32%
21/50
42%
15/50
30%
PurpleWave203/450
45%
30/50
60%
27/50
54%
24/50
48%
24/50
48%
16/50
32%
15/50
30%
25/50
50%
19/50
38%
23/50
46%
Stardust139/450
31%
25/50
50%
7/50
14%
21/50
42%
15/50
30%
21/50
42%
5/50
10%
9/50
18%
23/50
46%
13/50
26%
Microwave418/450
93%
45/50
90%
49/50
98%
45/50
90%
48/50
96%
48/50
96%
50/50
100%
44/50
88%
45/50
90%
44/50
88%
XIAOYI364/450
81%
41/50
82%
41/50
82%
49/50
98%
45/50
90%
43/50
86%
31/50
62%
32/50
64%
44/50
88%
38/50
76%
CUNYBot449/450
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
50/50
100%
49/50
98%
50/50
100%
50/50
100%
overall63.37%68%64%68%64%62%57%58%67%61%

MicrowaveoverallBenzenEclipsMatchPNeoAztNeoSylOutsidCircuiFightiPolypo
BananaBrain46/450
10%
7/50
14%
8/50
16%
3/50
6%
5/50
10%
8/50
16%
1/50
2%
8/50
16%
2/50
4%
4/50
8%
PurpleWave119/450
26%
8/50
16%
6/50
12%
9/50
18%
26/50
52%
19/50
38%
21/50
42%
10/50
20%
10/50
20%
10/50
20%
Stardust46/450
10%
0/50
0%
7/50
14%
9/50
18%
6/50
12%
3/50
6%
9/50
18%
2/50
4%
6/50
12%
4/50
8%
McRave32/450
7%
5/50
10%
1/50
2%
5/50
10%
2/50
4%
2/50
4%
0/50
0%
6/50
12%
5/50
10%
6/50
12%
XIAOYI332/450
74%
45/50
90%
45/50
90%
44/50
88%
31/50
62%
33/50
66%
39/50
78%
36/50
72%
26/50
52%
33/50
66%
CUNYBot441/450
98%
50/50
100%
49/50
98%
50/50
100%
50/50
100%
50/50
100%
49/50
98%
50/50
100%
47/50
94%
46/50
92%
overall37.63%38%39%40%40%38%40%37%32%34%

Ooh, Microwave upset PurpleWave only on the three-player map Neo Aztec. Compare the Match Point column with the Neo Aztec column: They have the same overall win rate, but Microwave played Match Point consistently against each opponent, and played Neo Aztec sometimes better and sometimes worse. It must mean something!

XIAOYIoverallBenzenEclipsMatchPNeoAztNeoSylOutsidCircuiFightiPolypo
BananaBrain0/450
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
PurpleWave12/450
3%
1/50
2%
0/50
0%
5/50
10%
1/50
2%
0/50
0%
1/50
2%
2/50
4%
1/50
2%
1/50
2%
Stardust8/450
2%
0/50
0%
0/50
0%
0/50
0%
3/50
6%
2/50
4%
0/50
0%
0/50
0%
3/50
6%
0/50
0%
McRave86/450
19%
9/50
18%
9/50
18%
1/50
2%
5/50
10%
7/50
14%
19/50
38%
18/50
36%
6/50
12%
12/50
24%
Microwave118/450
26%
5/50
10%
5/50
10%
6/50
12%
19/50
38%
17/50
34%
11/50
22%
14/50
28%
24/50
48%
17/50
34%
CUNYBot441/450
98%
49/50
98%
45/50
90%
50/50
100%
49/50
98%
50/50
100%
50/50
100%
50/50
100%
49/50
98%
49/50
98%
overall24.63%21%20%21%26%25%27%28%28%26%

CUNYBotoverallBenzenEclipsMatchPNeoAztNeoSylOutsidCircuiFightiPolypo
BananaBrain2/450
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
2/50
4%
0/50
0%
PurpleWave15/450
3%
1/50
2%
3/50
6%
0/50
0%
3/50
6%
1/50
2%
1/50
2%
1/50
2%
3/50
6%
2/50
4%
Stardust2/450
0%
0/50
0%
0/50
0%
0/50
0%
1/50
2%
1/50
2%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
McRave1/450
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
0/50
0%
1/50
2%
0/50
0%
0/50
0%
Microwave9/450
2%
0/50
0%
1/50
2%
0/50
0%
0/50
0%
0/50
0%
1/50
2%
0/50
0%
3/50
6%
4/50
8%
XIAOYI9/450
2%
1/50
2%
5/50
10%
0/50
0%
1/50
2%
0/50
0%
0/50
0%
0/50
0%
1/50
2%
1/50
2%
overall1.41%1%3%0%2%1%1%1%3%2%

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Comments

Dan on :

Nice analysis!

In testing I observed PurpleWave struggling in PvP on maps whose naturals had narrow exits facing the enemy base: Aztec, Match Point, Benzene, and Circuit Breakers, especially the first two.

Reason 1: PurpleWave's PvP style and strength lie in being able to safely expand faster than other Protoss, at the cost of map control. But with PurpleWave unwilling to send armies the long way on those maps for more favorable engagements, it gets contained and can't convert its economic advantage into a win. It's a significant enough issue that I came close to attempting army flanks prior to the deadline. Given that AIIDE features both Destination and Aztec I might have to implement it this time around.

Reason 2: A bug in PurpleWave's micro causes it to engage with Dragoons through narrow chokes when it otherwise deems them too punishing. The bug has since been fixed but caused undue suicides especially on Aztec and Match Point.

Reason 3: PurpleWave has a bug causing it to excessively prefer expansions towards the middle of the map. I rewrote the expansion-scoring logic to be player-agnostic (so PurpleWave can anticipate likely enemy expansions) but in the process botched PurpleWave's own scoring. This is particularly fatal on Aztec where the central downhill expansions are incredibly hard to both take and defend. This bug is fixed locally but still shows up in a lot of BASIL games.

Reason 4: PurpleWave has a bug (noticing a trend?) where in some circumstances the worker assigned to build an expansion gets perpetually swapped out, and the bot fails to take a third base until very late if ever. The bug appears to be map-dependent, and I suspect Aztec is worse than others.

I would have bet on McRave to do better on maps that either have long rush distance (requiring fewer sunkens for early defense) or have mains surrounded by walls (thus reducing ground unit vision of escaping Mutalisks). That'd mean Benzene (long) Aztec/Sylphid (walls), and Match Point (both). In practice that proved to be the case overall, but with a lot of noise on a per-matchup basis.

MicroDK on :

I suspect the upset and big difference in map winrates vs PurpleWave is more due to bugs in PurpleWave than actually strengths in Microwave.

I have not analyzed it further so this is just speculations. Maybe Dan knows more... :-)

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