Solved deduction puzzles

Original Roboku cases to solve with pen and paper. Each one comes with its board, every suspect's clue and a reasoned step-by-step solution, so you can see how to reach the answer, not just what it is.

They go from easiest to hardest. If it's your first time, read how to play first; for the four- and five-star ones, the strategy guide will help.

CaseStolen itemBoardSuspectsDifficulty
Case 1Ancient Treatise6×65★☆☆☆☆
Case 2Mother-of-Pearl Shell6×65★☆☆☆☆
Case 3Illuminated Book6×65★☆☆☆☆
Case 4Giant Pearl6×65★☆☆☆☆
Case 5Secret Diary6×65★☆☆☆☆
Case 6Inca Quipu6×65★☆☆☆☆
Case 7Miniature Anchor6×65★☆☆☆☆
Case 8Ruby Brooch6×65★☆☆☆☆
Case 9Giant Pearl6×65★☆☆☆☆
Case 10Illuminated Book6×65★★☆☆☆
Case 11Embroidered Kimono6×65★★☆☆☆
Case 12Old Map7×76★★☆☆☆
Case 13Ceremonial Waraji7×76★★☆☆☆
Case 14Ancient Mask8×86★★☆☆☆
Case 15Inca Quipu8×86★★☆☆☆
Case 16Porcelain Vase7×76★★★☆☆
Case 17Golden Helmet7×76★★★☆☆
Case 18Egyptian Urn7×76★★★☆☆
Case 19Giant Pearl7×76★★★☆☆
Case 20Pocket Watch7×76★★★☆☆
Case 21Antique Violin8×86★★★☆☆
Case 22Egyptian Urn8×87★★★☆☆
Case 23Carved Totem8×86★★★☆☆
Case 24Ruby Brooch9×97★★★☆☆
Case 25Ancient Treatise7×76★★★★☆
Case 26Royal Opal8×87★★★★☆
Case 27Illuminated Book8×87★★★★☆
Case 28Antique Violin8×87★★★★☆
Case 29Trident of Neptune9×97★★★★☆
Case 30Crystal Starfish9×96★★★★☆
Case 31Trident of Neptune9×97★★★★☆
Case 32Star Sapphire10×106★★★★☆
Case 33Egyptian Urn9×97★★★★★
Case 34Illuminated Book9×98★★★★★
Case 35Ancient Treatise9×98★★★★★
Case 36Carved Totem9×97★★★★★
Case 37Trident of Neptune10×108★★★★★
Case 38Inca Quipu10×109★★★★★
Case 39Egyptian Urn10×107★★★★★
Case 40Antique Violin10×107★★★★★
Case 41Inca Quipu10×109★★★★★
Case 42Sacred Scroll10×107★★★★★
Case 43Ruby Brooch10×108★★★★★
Case 44Star Sapphire11×117★★★★★
Case 45Antique Violin11×117★★★★★
Case 46Star Sapphire11×117★★★★★
Case 47Giant Pearl11×118★★★★★
Case 48Medieval Codex11×119★★★★★
Case 49Medieval Codex11×119★★★★★
Case 50Giant Pearl12×128★★★★★
Case 51Star Sapphire12×127★★★★★
Case 52Trident of Neptune12×129★★★★★
Case 53Royal Opal12×129★★★★★
Case 54Ancient Mask12×128★★★★★
Case 55Gold Necklace12×1210★★★★★
Case 56Giant Pearl12×127★★★★★
Case 57Sacred Scroll12×129★★★★★
Case 58Antique Violin12×129★★★★★
Case 59Ancient Treatise12×126★★★★★
Case 60Ruby Brooch12×127★★★★★