LM4×4BlueToast001
BlueToast001 has 4 puzzles in the Variant Sudoku catalog, most often with Kropki, Thermo and Killer. Every puzzle below links to its original home, so the setter gets the credit and the traffic.
Puzzles here42 are 4×4
First puzzle20261: Cold Start (Thermometer Sequel 1/4)
Latest puzzleMay 2026Kropki Quadruple: Tutorial (1/4)
Logic Masters solves1,623Average rating 85%
On Variant Sudoku
Favourite rules
Puzzles by BlueToast001
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
LM4×4
LMDon't Touch The Fog!
LMFoggy Escape Room
LM4×41: Cold Start (Thermometer Sequel 1/4)
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