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Learn Queens

Five techniques, easiest first. Each step is a short lesson, a worked example on a real board, then 3 puzzles that can’t be solved without that technique. Finish a step’s puzzles to unlock the next one.

Start with Last Cell →

  1. Step 1: Last CellEvery row, column and region needs a queen. When one is down to a single open cell, the thinking is done.3 practice puzzles, 6×6 to 8×8.
  2. Step 2: Region SqueezeA region that fits in one row takes that row’s queen with it.3 practice puzzles, 6×6 to 8×8.
  3. Step 3: No RoomBefore a queen goes anywhere, check who it would leave stranded.3 practice puzzles, 6×6 to 8×8.
  4. Step 4: Pair SqueezeTwo regions, two rows, and no room left for anyone else.3 practice puzzles, 7×7 to 9×9.
  5. Step 5: Triple SqueezeThree regions, three rows. This one takes counting.3 practice puzzles, 7×7 to 9×9.

Prefer to read it all at once? The techniques guide covers the same five on one page. Hints in every game name these techniques too, so what you learn here is what they’ll point you to.