BLOQTRIX v1.0
An 8x8 block puzzle for the ZX Spectrum 48K / 128K
(c) 2026 Gabriel Cuesta. MIT licence.
https://github.com/gabicuesta/bloqtrix

FILES
  bloqtrix48.tap / .sna    Spectrum 48K and later. Beeper sound.
  bloqtrix128.tap / .sna   Spectrum 128K and +2. AY sound effects and music.
                           (Should work on +2A/+3, but untested.)

  The .sna snapshots load instantly in an emulator. The .tap files work in
  emulators and on real hardware: LOAD "" on a 48K, Tape Loader on a 128K.

HOW TO PLAY
  Each round deals 3 pieces. Place them on the 8x8 board and complete rows
  or columns to clear them. The game ends when no piece fits and you have
  no powers left that could fix it.

CONTROLS
  Q A O P or cursor keys (5 6 7 8)  Move the piece
  1 2 3  or  N                      Pick a piece (N cycles to the next one)
  SPACE, ENTER or 0                 Place
  C                                 Swap: new pieces that fit
  G                                 Rotate the selected piece 90 degrees
  S                                 Sound on/off
  M                                 Music on/off (128K)
  L (on the title screen)           Language: Spanish / English
  Kempston                          Move, and press fire to place. Hold fire
                                    and push left or right to change piece.

SCORING
  1 point per placed cell.
  Line clears: 10 x lines x lines x streak (double +40, triple +90...).
  STREAK: clear lines on consecutive placements and the multiplier goes up
          to x8. Place a piece without clearing a line and it resets to 0.
  +100 for every line made of a single colour.
  +300 for clearing the whole board.

POWERS
  You start with 1 Swap and 1 Rotate (up to 3 of each).
  Earn a Swap each time your streak reaches 3, 6, 9... and when you clear
  the board. Earn a Rotate every 8 lines.

SPECIAL CELLS
  BOMB (from round 2): when its line is cleared it wipes out its 3x3 area,
        and sets off any other bomb it reaches. +2 per cell.
  STONE (from round 5): the first line only cracks it; the second one
        breaks it.

FAIR DEALING
  The first three rounds always deal pieces that fit. After that the game
  helps you 80 % of the time, and the help slowly drops to 20 %.