| Nr | Date | Description | Detected in | Fixed in | Game record | Move |
|---|---|---|---|---|---|---|
| 59 | 990726 | Reading error. The attacker incorrectly thinks it can capture some stones with K2 because it fails to consider an edge kosumi tesuji at M1. Actually, due to a shortage of liberties, there is a counter-tesuji at Q2, but that isn't considered either. | 2.3.67 | toma-gnugo-2.3.67-199907261046.sgf.gz | 96 | |
| 115 | 990922 | Wrong connection. Better shape to connect at C9. | 2.5.9 | f000x-gnugo-2.5.9-199909221017.sgf.gz | 82 | |
| 116 | 990922 | Wrong connection. Far better, both shapewise and territory-wise to connect indirectly at B10. For a local connection, B9 is the only move. | 2.5.9 | f000x-gnugo-2.5.9-199909221017.sgf.gz | 124 | |
| 124 | 990928 | Strategic error. B13 is good locally, but not urgent as E9 and B13 are miai. Running with the H13 stones must be top priority. | 2.5.11 | ManyFaces-gnugo-2.5.11-199909281239.sgf.gz | 62 | |
| 167b | 991005 | Defender mistake. J14 must be defended at N4, not at K9. | 2.5.16 | andrej-gnugo-2.5.16-199910051550.sgf.gz | 212 | |
| 175 | 991005 | Wrong defense. Better to capture immediately at N13. | 2.5.12 | gnugo-2.5.12-brego-199910051832.sgf.gz | 154 | |
| 177 | 991005 | Life&death error. Eyes may be destroyed in sente with M16 and F14. | 2.5.12 | gnugo-2.5.12-brego-199910051832.sgf.gz | 184 | |
| 242 | 000531 | Weak shape. It's locally much more robust to play H3. | 2.7.105 --mouse | epoupaert-gnugo-2.7.105-200005311831.sgf.gz | 97 | |
| 243 | 000531 | Defense needed. It's big to immediately play H3. | 2.7.105 --mouse | epoupaert-gnugo-2.7.105-200005311831.sgf.gz | 99 | |
| 271 | 000714 | Missed seki. This is tricky to read out, but it looks like black can force a seki in the lower left by playing C5 followed by C2. | 2.7.134 | Storer-gnugo-2.7.133-200007141436.sgf.gz | 276 |