Reverse Komi Table

    Keywords: Rules

Reverse Komi As A Handicapping Method

As a large number of handicap stones have the tendency to change the fundamentals of game dynamics, some players prefer the use of Reverse Komi as a method of handicapping.

This is an experimental table for figuring out reverse komi on 19x19 games. For Dans, Chinese rules, etc., use the Raw Table further down and deduct the regular Komi.


Komi given to Black, Japanese Rules
Own Opponent (White) Kyu rank
kyu 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
1 -6.5
2 -0.5 -6.5
3 4.5 -0.5 -6.5
4 10.5 4.5 -0.5 -6.5
5 16.5 10.5 4.5 -0.5 -6.5
6 22.5 16.5 10.5 4.5 -0.5 -6.5
7 29.5 22.5 16.5 10.5 4.5 -0.5 -6.5
8 35.5 28.5 22.5 16.5 10.5 4.5 -0.5 -6.5
9 42.5 35.5 28.5 22.5 16.5 10.5 5.5 -0.5 -6.5
10 48.5 41.5 35.5 28.5 22.5 16.5 11.5 5.5 -0.5 -6.5
11 55.5 48.5 41.5 35.5 28.5 22.5 17.5 11.5 5.5 -0.5 -6.5
12 62.5 55.5 48.5 41.5 35.5 29.5 23.5 18.5 11.5 5.5 -0.5 -6.5
13 70.5 62.5 55.5 48.5 41.5 35.5 30.5 24.5 18.5 12.5 6.5 -0.5 -6.5
14 77.5 69.5 62.5 55.5 48.5 42.5 36.5 31.5 24.5 18.5 13.5 6.5 0.5 -6.5
15 85.5 77.5 69.5 62.5 55.5 49.5 43.5 37.5 31.5 25.5 19.5 13.5 6.5 0.5 -6.5
16 93.5 84.5 76.5 69.5 62.5 56.5 50.5 44.5 38.5 32.5 26.5 20.5 13.5 7.5 0.5 -6.5
17 101.5 92.5 84.5 76.5 70.5 63.5 57.5 51.5 45.5 39.5 33.5 27.5 20.5 14.5 7.5 0.5 -6.5
18 109.5 100.5 92.5 84.5 77.5 70.5 65.5 58.5 52.5 46.5 40.5 34.5 27.5 21.5 15.5 7.5 0.5 -6.5
19 118.5 108.5 100.5 92.5 85.5 78.5 72.5 66.5 59.5 53.5 48.5 42.5 35.5 29.5 22.5 14.5 7.5 0.5 -6.5
20 126.5 117.5 108.5 100.5 92.5 86.5 80.5 74.5 67.5 61.5 55.5 49.5 42.5 36.5 29.5 22.5 15.5 8.5 0.5 -6.5
21 135.5 125.5 116.5 108.5 101.5 94.5 88.5 81.5 75.5 69.5 63.5 57.5 50.5 44.5 37.5 30.5 22.5 16.5 8.5 0.5 -6.5
22 144.5 134.5 125.5 116.5 109.5 102.5 96.5 89.5 83.5 77.5 71.5 65.5 58.5 52.5 45.5 38.5 30.5 23.5 16.5 8.5 0.5 -6.5
23 154.5 143.5 134.5 125.5 117.5 110.5 104.5 97.5 91.5 85.5 79.5 73.5 66.5 60.5 53.5 46.5 38.5 31.5 24.5 16.5 8.5 0.5 -6.5
24 163.5 152.5 143.5 134.5 126.5 119.5 112.5 106.5 99.5 93.5 88.5 82.5 75.5 69.5 62.5 54.5 47.5 39.5 32.5 24.5 16.5 8.5 0.5 -6.5
25 173.5 162.5 152.5 143.5 135.5 127.5 121.5 115.5 108.5 102.5 96.5 90.5 83.5 77.5 70.5 62.5 55.5 48.5 40.5 32.5 24.5 16.5 8.5 0.5 -6.5

Notes

1. OGS Ladder game results up to 2016-03-03 on [ext] https://github.com/thouis/ogs-ladder-games with 16350 samples are used to determine the minimum,
as players normally do not play to maximize the points in the game result, instead try to maximize the probability for the win.  This tendency
results in the stronger player winning with greater points in the records on the average, than when there is no such tendency.
(OGS Ladder games have many no handicap games with wide disparity in strength)
2. How much higher than the minimum should the komi be set is verifiable only through accumulation of game results where the table is actually used.
3. For this reason, these tables are work in progress.
4. Value of komi points have a greater impact on win-loss results in the higher ranks, thus are worth more for the higher ranks than for the lower.

Raw Table
Own Opponent (White) rank
rank 7d 6d 5d 4d 3d 2d 1d 1k 2k 3k 4k 5k 6k 7k 8k 9k 10k 11k 12k 13k 14k 15k 16k 17k 18k 19k 20k 21k 22k 23k 24k 25k
7d 0
6d 6 0
5d 12 6 0
4d 19 12 6 0
3d 26 19 12 6 0
2d 32 25 18 12 6 0
1d 39 32 25 18 12 6 0
1k 47 39 31 24 18 12 6 0
2k 54 46 38 31 24 18 11 6 0
3k 61 53 45 38 30 24 17 11 6 0
4k 69 61 52 44 37 30 23 17 11 6 0
5k 77 68 60 51 44 36 30 23 17 11 6 0
6k 85 76 67 59 51 43 36 29 23 17 11 6 0
7k 93 84 75 66 58 50 42 36 29 23 17 11 6 0
8k 102 92 83 73 65 57 49 42 35 29 23 17 11 6 0
9k 111 100 91 81 72 64 56 49 42 35 29 23 17 12 6 0
10k 120 109 99 89 80 71 63 55 48 42 35 29 23 18 12 6 0
11k 129 118 107 97 88 79 70 62 55 48 42 35 29 24 18 12 6 0
12k 138 127 116 106 96 86 78 69 62 55 48 42 36 30 24 18 12 6 0
13k 148 136 125 114 104 94 85 77 69 62 55 48 42 36 30 25 19 13 6 0
14k 158 146 134 123 112 102 93 84 76 69 62 55 49 43 37 31 25 19 13 7 0
15k 168 155 143 132 121 110 101 92 84 76 69 62 56 50 44 38 32 26 20 13 7 0
16k 178 165 153 141 130 119 109 100 91 83 76 69 63 57 51 45 39 33 26 20 14 7 0
17k 189 176 163 150 139 128 117 108 99 91 83 77 70 64 58 52 46 40 34 27 21 14 7 0
18k 200 186 173 160 148 137 126 116 107 99 91 84 77 71 65 59 53 47 41 34 28 21 14 7 0
19k 211 197 183 170 157 146 135 125 115 107 99 92 85 79 72 66 60 54 48 42 35 28 21 14 7 0
20k 222 208 194 180 167 155 144 133 124 115 107 99 93 86 80 74 68 62 56 49 43 36 29 22 15 7 0
21k 234 219 204 190 177 165 153 142 132 123 115 108 101 94 88 82 76 70 64 57 51 44 37 29 22 15 7 0
22k 246 231 216 201 187 174 162 151 141 132 123 116 109 102 96 90 84 78 71 65 59 52 45 37 30 22 15 7 0
23k 258 242 227 212 198 184 172 161 150 141 132 124 117 110 104 98 92 86 80 73 67 60 53 45 38 30 22 15 7 0
24k 271 255 239 223 209 195 182 170 159 150 141 133 126 119 112 106 100 94 88 82 75 68 61 54 46 38 30 22 15 7 0
25k 284 267 251 235 220 205 192 180 169 159 150 142 134 127 121 115 109 103 97 90 84 77 69 62 54 46 38 30 22 15 7 0
Beta version 2 (June 2016)

Reverse Komi Table last edited by Tokumoto on June 21, 2016 - 16:33
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