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Problem Count
| Easy Capture | 200 |
| Easy Life | 200 |
| Easy Kill | 200 |
| Tsumego Dictionary Volume I | 200 |
| Tsumego Dictionary Volume I | 200 |
| Tsumego Dictionary Volume II | 200 |
| Tsumego Dictionary Volume II | 200 |
| Tsumego Dictionary Volume III | 200 |
| Tsumego Dictionary Volume III | 200 |
| Korean Problem Academy 1 | 200 |
| Korean Problem Academy 2 | 200 |
| Korean Problem Academy 3 | 150 |
| Korean Problem Academy 4 | 200 |
| Life & Death - Elementary | 225 |
| Life & Death - Elementary | 220 |
| Life & Death - Elementary | 225 |
| Life & Death - Elementary | 225 |
| Life & Death - Intermediate | 216 |
| Life & Death - Intermediate | 215 |
| Life & Death - Intermediate | 215 |
| Life & Death - Intermediate | 215 |
| Life & Death - Advanced | 144 |
| Problems from Professional Games | 45 |
| Gokyo Shumyo I | 98 |
| Gokyo Shumyo II | 68 |
| Gokyo Shumyo III | 75 |
| Gokyo Shumyo IV | 237 |
| Tsumego of Fortitude | 142 |
| Kanzufu | 144 |
| Kanzufu - Tesuji | 155 |
| Tesuji Training | 207 |
| Tesuji Training | 209 |
| In-seong's Lectures | 51 |
| The Rules of Capturing Races | 140 |
| Endgame Tesujis | 200 |
| Diabolical | 10 |
| Tesujis in Real Board Positions | 120 |
| Tsumego Master | 200 |
| Tsumego Master | 160 |
| Beautiful Tsumego | 200 |
| Single-Digit-Kyu Problems | 64 |
| Xuanxuan Qijing | 200 |
| Xuanxuan Qijing | 154 |
| Secret Tsumego from Hong Dojo | 100 |
| 13x13 Endgame Problems | 47 |
| Secret by Kim Jiseok | 52 |
| 5x5 Endgame Problems | 105 |
7633* | |
| *Might not show hidden collections. | |
