Home › Puzzle packs

Puzzle packs

Numbered logic grids that stay the same for everybody: share a number with a friend and you are both solving the same puzzle.

Bridges

42 numbered Bridges grids from easy 7×7 seas to hard 11×11 ones, each with exactly one solution.

Binary

42 numbered Binary grids: 6×6 easy, 8×8 medium and 10×10 hard, each with one solution.

Easy

#601
#602
#603
#604
#605
#606
#607
#608
#609
#610
#611
#612
#613
#614

Medium

#615
#616
#617
#618
#619
#620
#621
#622
#623
#624
#625
#626
#627
#628

Hard

#629
#630
#631
#632
#633
#634
#635
#636
#637
#638
#639
#640
#641
#642

Lights

42 numbered Lights boards, 6×6 and 7×7, each with exactly one set of presses that turns everything off.

Easy

#701
#702
#703
#704
#705
#706
#707
#708
#709
#710
#711
#712
#713
#714

Medium

#715
#716
#717
#718
#719
#720
#721
#722
#723
#724
#725
#726
#727
#728

Hard

#729
#730
#731
#732
#733
#734
#735
#736
#737
#738
#739
#740
#741
#742

Each pack holds fourteen puzzles per difficulty. Every one was generated and checked before it went on the site, so it has exactly one solution and can be solved by logic alone at its stated level. A tick marks the puzzles you have already solved in this browser.

New to a game? Read its rules first: Bridges, Binary or Lights. The guide Logic techniques collects the moves that open up the harder grids.