Bring a puzzle. Leave with a method.
Start with your real position or a ready-made example. Every coach combines a checkable solution with an explanation you can replay.
01 / CUBE COACH
Your cube. A clear way home.
Paint your real 3 × 3 cube, check its position, then follow animated turns and explained formulas through seven verified stages.
3D color input · reversible playback
02 / SUDOKU COACH
Not just what. Here’s why.
Bring the grid where you got stuck. Reveal a hint, inspect the evidence, then apply a genuinely explained deduction.
Clues & progress · evidence-first hints
Room for more good questions.
Planned additions, not playable tools yet. We will publish them only when the explanations are ready.