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XOR is a strategic game. Not ment for a smartphone.
With walkers (shields) all happy masks are to be removed before one reaching the red door.

One walker can be moved in the row or column with the cursor, a ◀ ▲ ▶ ▼ button or ← ↑ → ↓ key.
Delete withdraws the last step(s).
 ❮5  undoes the last five steps.
 ❮❮  or Home go the begin situation.
 view  resizes the view in steps between original and full size.
 walker , Enter, or a click on the inactive walker, gives mobility to the other walker.
 video  replays done steps. Replay can continue when deviant steps are stepped back.
 step  replays one next step.
 pause  halts video.
 save , available when a mask is captured, stores the current situation as a cookie, replaceing an earlier storage.
    Browser closing may remove the cookie.
 load  restores the saved situation and is available unless a mask is captured, as after  ❮❮ .
Alt+ save  shows the route, to be copied into a file.
Alt+ load  request the route; a click elsewhere restored the earlier situation.

Speed, color, sound and randomness are not functional.
Once a game is selected, playing does not use internet.

Mazes below are in increasing complexity order.
Play Together to learn by experience the properties of the few characters and objects in Xor games. This maze has intriguing situations.
The Cave is the most complex Xor maze, for experienced Xor gamers.

BBC serieAmiga serieApple Macintosh
  1. Dots and Waves
  2. Something Fishy
  3. Chicken Supreme
  4. Explosive Mixture
  5. Henry's Anguish
  6. The Dolls House
  7. Dolly's Revenge
  8. Enlightenment
  9. The Challenge
  10. Patience Pending
  11. Razor Edge
  12. The Happy Hour
  13. Deja Vu
  14. Penultimate
  15. The Decoder
  1. Taurus
  2. Andromeda
  3. Perseus
  4. Cameloparous
  5. Ursa Nagor -modified
  6. Draco
  7. Hercules
  8. Delphinus
  9. Aquila
  10. Wheel of Fortune
  11. Corvus
  12. Canis Maior
  13. Hydrus
  14. Vela Carina -modified
  15. The Hidden Cavern
  1. Together
  2. The Cave

The game Xor is created by Paul Carruthers and Ian Downend for the Atari ST and Amiga. Paul formed Astral Software Ltd in 1987.
The player here is a remake of Xor by 'Astral 1981 / JvdLingen 1989' on the Macintosh computer of those days, in 2004 programmed in javascript by Rob Veldhuyzen van Zanten.
In the original Macintiosh game the display is fixed to 7x7 fields, and a restart is required after each misstep, making the goal almost unreachable.
There to start The Cave, one has to type the code, received at the exit of Together.
The play here is tolerant, enjoy your game.

Solutions of the original BBC serie gave letters; 'The Decoder' helped to find a word.
My modifications in the Amiga serie are adopted in 2007 in "XOR Procyon". "Wheel of Fortune" therein was renamed Ophiuchus and "The Hidden Cavern" Crux.