Tag Archives: Sysudoku XY Railway

Lucky Panda 192


This post details the basics and the easy solution of the fourth puzzle of the Lucky Panda Sudoku review, “insanely difficult” 192.  It’s not with a bv map. The bypass starts with a 3-fill and immediately resolves two. Then slink … Continue reading

Posted in Advanced Solving, Puzzle Reviews | Tagged , , , | Leave a comment

Only Extreme 390 is Advanced


This post finishes the updates on Manuel Castillo’s Only Extreme Sudoku with a less advanced OnEx 390.  This one is a better example of the Sysudoku XY Railway than was the original post. No trials were required in the ten … Continue reading

Posted in Advanced Solving, Puzzle Reviews | Tagged , , , , , , | Leave a comment

Only Not Extreme 46


The review of Castillo’s Only Extreme collection continues with Only Extreme 46.  A very extensive bypass is survived, to leave very little to add in box marking, and an interesting line marking.  The rest is murder by the usual suspects … Continue reading

Posted in Advanced Solving, Puzzle Reviews | Tagged , , , , , , | Leave a comment