1# Takuzu23Fill the grid with two symbols following three simple rules.4567## How to Play89Fill every empty cell with either a filled circle (●) or an open circle (○)10so that the grid satisfies three rules:11121. **No triple**: No three consecutive identical symbols in any row or column.132. **Equal count**: Each row and column must contain exactly N/2 of each symbol.143. **Unique lines**: No two rows may be identical; no two columns may be identical.1516Pre-filled cells (shown in bold) cannot be changed. The puzzle is solved when17every cell is filled and all three rules are satisfied.1819## Controls2021| Key | Action |22|-----|--------|23| Arrow keys / WASD / hjkl | Move cursor |24| Mouse left-click | Move to a cell, or cycle the current editable cell |25| `z` / `0` | Place ● |26| `x` / `1` | Place ○ |27| `Backspace` | Clear cell |28| `Ctrl+R` | Reset puzzle |29| `Ctrl+H` | Toggle full help |30| `Escape` | Return to main menu |3132## Modes3334| Mode | Grid | Clues | Techniques Required |35|------|------|-------|---------------------|36| Beginner | 6x6 | ~50% | Doubles and sandwich patterns |37| Easy | 6x6 | ~40% | Counting required |38| Medium | 8x8 | ~40% | Moderate deduction |39| Tricky | 10x10 | ~38% | Uniqueness rule needed |40| Hard | 10x10 | ~32% | Long deduction chains |41| Very Hard | 12x12 | ~30% | Deep logic required |42| Extreme | 14x14 | ~28% | Maximum challenge |4344## Elo Difficulty4546Named modes are compatibility presets. Use `--difficulty <0..3000>` to target a47specific Elo difficulty for generated puzzles.4849## Quick Start5051```bash52puzzletea new takuzu beginner53puzzletea new takuzu medium54puzzletea new takuzu extreme55puzzletea new binairo hard # alias56```