3C

3C Academy

Diamond-system library

A library of diamond-system lessons with machine-drawn, geometrically correct diagrams, produced daily. Browse by shot name: natural, around-the-table, short three-rail, Sang Lee…

Try the ball-placement tool →
Lessons
68
Free
23
Shot types
5

Filters

AllShort-angle (natural) 20Long-angle 11Short three-rail (ticky) 3Long bank (five-and-a-half) 17Return (reverse) shot 17
Diamond systemsCorner-five (diamond) systemMirror (pure reflection)
DifficultyAny difficulty●○○○○●●○○○●●●○○●●●●○●●●●●ForAllFreeMember
SortNewestEasiest firstHardest firstTitle A–Z
23 lessonsClear

Library

Trả băng: nút 1.5 trả về nút 612345671.56
Return (reverse) shotFree

Return shot: diamond 1.5 back to 6

Difficulty ●●●○○

Trả băng: nút 1.5 trả về nút 5.512345671.55.5
Return (reverse) shotFree

Return shot: diamond 1.5 back to 5.5

Difficulty ●●●○○

Trả băng: nút 1.5 trả về nút 512345671.55
Return (reverse) shotFree

Return shot: diamond 1.5 back to 5

Difficulty ●●●○○

Ba băng con ở góc: nút 4.5 → 112345674.51
Short three-rail (ticky)Free

Short three-rail in the corner: diamond 4.5 → 1

Difficulty ●●○○○

Cúp dài: từ nút 1.5 tới nút 4.5 đầu bàn kia12345671.54.5
Long-angleFree

Long-angle: from diamond 1.5 to 4.5 at the far end

Difficulty ●●○○○

Cúp dài: từ nút 1.5 tới nút 4 đầu bàn kia12345671.54
Long-angleFree

Long-angle: from diamond 1.5 to 4 at the far end

Difficulty ●●○○○

Cúp băng: từ nút 1.5 về nút 3.512345671.53.5
Short-angle (natural)Free

Natural three-rail: from diamond 1.5 to 3.5

Difficulty ●○○○○

Cúp băng: từ nút 1.5 về nút 312345671.53
Short-angle (natural)Free

Natural three-rail: from diamond 1.5 to 3

Difficulty ●○○○○

Hệ 50: 60 − 10 = 501234567601050
Long bank (five-and-a-half)Free

Corner-five: cue 60, aim 10, arrive 50

Difficulty ●●●○○

Cúp băng: từ nút 1.5 về nút 2.512345671.52.5
Short-angle (natural)Free

Natural three-rail: from diamond 1.5 to 2.5

Difficulty ●○○○○

Cúp băng: từ nút 1 về nút 7123456717
Short-angle (natural)Free

Natural three-rail: from diamond 1 to 7

Difficulty ●○○○○

Trả băng: nút 1 trả về nút 6123456716
Return (reverse) shotFree

Return shot: diamond 1 back to 6

Difficulty ●●●○○

Trả băng: nút 1 trả về nút 5.5123456715.5
Return (reverse) shotFree

Return shot: diamond 1 back to 5.5

Difficulty ●●●○○

Trả băng: nút 1 trả về nút 5123456715
Return (reverse) shotFree

Return shot: diamond 1 back to 5

Difficulty ●●●○○

Cúp dài: từ nút 1 tới nút 4.5 đầu bàn kia123456714.5
Long-angleFree

Long-angle: from diamond 1 to 4.5 at the far end

Difficulty ●●○○○

Cúp dài: từ nút 1 tới nút 4 đầu bàn kia123456714
Long-angleFree

Long-angle: from diamond 1 to 4 at the far end

Difficulty ●●○○○

Cúp băng: từ nút 1 về nút 3.5123456713.5
Short-angle (natural)Free

Natural three-rail: from diamond 1 to 3.5

Difficulty ●○○○○

Cúp băng: từ nút 1 về nút 3123456713
Short-angle (natural)Free

Natural three-rail: from diamond 1 to 3

Difficulty ●○○○○

Hệ 50: 50 − 20 = 301234567502030
Long bank (five-and-a-half)Free

Corner-five: cue 50, aim 20, arrive 30

Difficulty ●●○○○

Cúp băng: từ nút 1 về nút 2.5123456712.5
Short-angle (natural)Free

Natural three-rail: from diamond 1 to 2.5

Difficulty ●○○○○

Hệ 50: 50 − 15 = 351234567501535
Long bank (five-and-a-half)Free

Corner-five: cue 50, aim 15, arrive 35

Difficulty ●●●○○

Cúp băng: từ nút 1 về nút 2123456712
Short-angle (natural)Free

Natural three-rail: from diamond 1 to 2

Difficulty ●○○○○

Hệ 50: 50 − 10 = 401234567501040
Long bank (five-and-a-half)Free

Corner-five: cue 50, aim 10, arrive 40

Difficulty ●●●○○