Binary Blocks Puzzles to Print: 200 Boards, Easy to Hard

What you get

• ·Three puzzle files: A4 and US Letter with four boards to a page, and one with a single board to a page for a tablet.
• ·The answers in a file of their own, so they never come out of the printer with the puzzles.
• ·Four boards to a page for printing, and a third file with one to a page — for a tablet, or for a board you can rest a hand on.
• ·Every board also playable on this site, with its answer a tap away.

How hard are they

Every board here was graded by the reasoning it actually needs, and a solver walked each one to the end before it was kept. None of them needs a guess, and none of them needs a rule you have not been told.

• 6 × 620, to start onthe moves you can see at a glance, and a block with one digit in it is that digit all through. Every board but one also needs a block read while it is still empty: two of its cells side by side, with a 1 right beside them in the line, can only be 0s.
• 8 × 852the same, and on every board one to five blocks read while still empty. None of these needs a whole line read.
• 10 × 1068the same, and a whole line read at once, two to eight times — holding a row against every way it could still be filled, its blocks included.
• 12 × 1260, at the backthe same moves, more of them: a whole line read five to thirteen times.

What is inside

• Binary Blocks200
• Binary3
• Binary Signs3
• Binary Diagonals3

A look inside

The first board of each size, drawn exactly as the file prints it.

• 6 × 6
• 8 × 8
• 10 × 10
• 12 × 12