The Key Puzzledesigned by Goh Pit Khiamcrafted by Walter Hoppeproduction year: 2004materials: wood, acryliccondition: great, as newdescription: The Key Puzzle is Goh Pit Khiam’s two-dimensional take on Bill Cutler’s Binary Burr. Four sliding tumblers lock a central key in place, and the challenge is to release it (in 39 steps) and return it to the locked position.The item will be shipped from Budapest, Hungary. Shipping costs will be calculated after bidding has ended. Multiple items may be ...

Anselby Brandon Wolf (2020)condition: as new, tested, works perfectlydescription: Ansel is Brandon Wolf’s camera-themed sequential discovery puzzle whose deceptively simple goal is to open the viewfinder on the camera. Progress hinges on discovering and using hidden tools (starting with a delightfully sneaky first move), blending SD elements with sequential movement as you unlock stages inside the camera. Originally released in 2020 as a laser-cut walnut edition with metallic gold accents.The ...

Block Lock (STC 211-2)designed by Stewart Coffincrafted by Bernhard Sweitzercondition: as newdescription: a five-piece 3x3x3 serially interlocking cube with all dissimilar non-symmetrical pieces - except for the single cubicle that locks the assembled cube.The item will be shipped from Budapest, Hungary. Shipping costs will be calculated after bidding has ended. Multiple items may be combined for shipping upon request. Accepted payment methods are (in order of preference): Wise, PayPal F+F, or d...

Leoby Mineyuki Uyematsuproduction year: 2009condition: as new, unpolished, comes with unique bag and cardsize: 53 x 43 x 6 mmmaterials: brassdescription: a rare brass version of MINE's classic Leo puzzleThe item will be shipped from Budapest, Hungary. Shipping costs will be calculated after bidding has ended. Multiple items may be combined for shipping upon request. Accepted payment methods are (in order of preference): Wise, PayPal F+F, or direct bank transfer.

2N No.1designed by Rob Stegmanncrafted by Scott T. Petersoncondition: great, perfect cuts, no issuesmaterials: Bocote, Walnutdescription: designed by Rob Stegmann in 2003 and crafted here by Scott T. Peterson, this interlocking puzzle consists of eight pieces that assemble into a perfect 4×4×4 cube. Each piece is made from two n-tetrominoes, forming four color-matched pairs; Peterson’s Bocote version highlights the puzzle’s core theme of duality through the use of contrasting exotic woods ...

2N No.5designed by Rob Stegmanncrafted by Scott T. Petersoncondition: great, perfect cuts, no issuesmaterials: Walnut, Birds Eye Mapledescription: a sophisticated take on Rob Stegmann’s interlocking designs: composed of eight uniquely shaped pieces (each formed from two n‑tetrominoes), it assembles into a flawless 4×4×4 cube. Crafted in rich Walnut and Birds Eye Maple, this edition is notably more challenging than the 2N No.1 version and emphasizes complexity through fully distinct pieces ...

Computer's Choice 4-Holedesigned by Bill Cutlercrafted by Jerry McFarlandmaterials: Maplecondition: great, no issuesdescription: Computer’s Choice 4-Hole is a 6-piece, level 8 burr puzzle selected by Bill Cutler from billions of computer-generated possibilities, each incorporating four interior voids. Crafted in Maple by Jerry McFarland, it features unusual cuts and an extended 8-step disassembly, offering a precise, well-balanced challenge with clean geometry and smooth action.The item will b...

Diagonal Cube (STC 58)designed by Stewart Coffincrafted by John Devostproduction year: 2006materials: Padauk, Bocotecondition: slightly worn points, beautifully aged woods, perfect fitdescription: Stewart Coffin’s Diagonal Cube (STC 58) is a diagonal-burr variant built from 42 small blocks into six dissimilar pieces that align along a hidden diagonal axis to form a true cube with a single solution. This 2006 Padauk-and-Bocote copy by John Devost features precise fit and a hand-buffed gloss fin...

Parcel Postdesigner unknowncrafted by John Devostproduction year: 2006condition: as newmaterials: Walnut, Padaukdescription: Parcel Post is a vintage 18-piece packing puzzle of unknown origin dating to the early 20th century: the challenge is to pack specified rectangular blocks into a tray of interior dimensions 18x28x6 units. Bill Cutler performed a computer analysis in 1979 and found exactly four solutions, underscoring why the puzzle remains notoriously difficult. John Devost’s Walnut-and-...

Checking In (STC 223)designed by Stewart Coffincrafted by John Devostproduction year: 2008condition: as new, with beautifully aged woodsmaterials: Walnut, Maple, Lacewooddescription: an eight-piece tray puzzle by Stewart Coffin built from isosceles right triangles that cleverly exploits a common instinct: if you pack the pieces tight into the corners you’ll inevitably strand two, the correct packings leave small corner gaps instead. Coffin later issued a two-tone, checkered version that elimin...