No Blocks (Latin Square) 

• 4 (169)
• 4 (116)
• 5 (206)
• 5 (198)
• 6 (178)
• 6 (148)
• 8 (133)
• 8 (149)
• 9 (30)
• 10 (30)

Overlapping Variants

• 9 Flower-4 (87)

 Rectangular Blocks 

• 4 (136)
• 4 (92)
• 6 (191)
• 6 (135)
• 9 (496)
• 9 (249)
• 9 (44)
• 9 (45)
• 9 (51)
• 9 (41)
• 12 (235)
• 12 (143)
• 15 (96)
• 15 (96)
• 16 (194)
• 16 (167)
• 20 (49)
• 20 (64)
• 25 (105)
• 25 (28)
• 9 Double-Doku (294)
• 9 Double-Doku (233)
• 9 Sensei (283)
• 9 Sensei (232)
• 9 Gattai Near-2 (282)
• 9 Gattai Near-2 (236)
• 9 Wing-3 (289)
• 9 Wing-3 (229)
• 9 Gattai-3 (274)
• 9 Gattai-3 (122)
• 9 Sohei (191)
• 9 Sohei (167)
• 9 Butterfly (215)
• 9 Flower-4 (149)
• 9 Flower-4 (4)
• 9 Samurai (409)
• 9 Samurai (86)
• 9 Gattai-8 (64)
• 9 Sumo (36)
• 9 Sumo (7)

 Irregular Blocks (Jigsaws) 

• 6 (177)
• 6 (99)
• 8 (213)
• 8 (59)
• 9 (110)
• 9 (56)
• 10 (68)
• 10 (13)