*Hit. The ray ran straight into a star. +1
=Reflection. The ray came back out where it went in. +1
A APair. Same letter marks where a ray went in and where it came out. +2
+5For each star placed wrong when you make your guess.
A ray turns 90° when a star sits diagonally ahead of it. Today's puzzle is ranked and your guess is final;
every earlier puzzle number is open for practice. Rays are free.
Deflecto Challenge started in the early 1980s as a Sinclair BASIC program for the ZX81,
written by Gary Argraves after the Black Box board game. The listing survived as a
printer roll and was typed back in by hand in 2026.
The game here runs on that same ray logic, rebuilt in Lua. Before going live it was checked
against the original BASIC on 640,000 test shots, and every one matched.