TetraNEX

Match the edges. Clear the board.

TetraNEX is a Tetravex-style edge-matching puzzle for the ZX Spectrum NEXT. Tiles sit in a rack on the right. The board waits on the left. Every shared edge must show the same number — or the tile stays in your hand and the Next buzzes at you.

Pick a size, start the clock, and rebuild the shuffled grid.

How to play

Each tile has a digit on all four sides. Place tiles so neighbouring edges agree:

• left board = puzzle
• right rack = your tiles
• touching numbers must match
• illegal drops stay in hand

Fill every cell and the puzzle is solved. Your time is on the title bar.

Features

• Three sizes: 2×2 warm-up, 3×3 classic, 4×4 grind
• Always-solvable shuffled puzzles
• Reset the same layout, or deal a new one
• Pause hides both boards — no peeking
• On-screen timer
• Keyboard and Kempston joystick
• Themes: NEXT and Windows

Controls

• Q A O P or cursor keys — move
• Space / Enter — pick up or drop
• R — reset this puzzle
• H — pause / continue
• N — new puzzle
• M — back to menu
• Kempston joystick also works

Requirements

ZX Spectrum NEXT (or a Next-compatible emulator such as CSpect). Load tetra.nex from the SD card or your emulator's file browser.

About

Written in Boriel ZX BASIC for the NEXT. A small, self-contained edge-matching puzzle — no NextBuild, no extra assets, just the .nex.