How to Solve Ichimaga Puzzles
Connect all the circles by darkening lines on the grid. Numbers indicate how many lines are connected. Lines may make no more than one right-angle turn between circles.
These are our in-depth tutorials for puzzles, with more being added once they’ve appeared in one of our books. The table of contents in our puzzle books will include a thumbnail of the type of puzzle, and a QR code, which will take you directly to its tutorial page. Variants with no significant change in solving technique, such as some Sudoku puzzles with extra regions, will appear at the bottom of the main tutorial page with a brief explanation of what is different.
Connect all the circles by darkening lines on the grid. Numbers indicate how many lines are connected. Lines may make no more than one right-angle turn between circles.
Place a diagonal mirror in one cell of each region. Matching letter-number combinations outside the grid indicate the start and end of beams that reflect off a given number of mirrors.
Find a hidden fleet of single-cell boats. Lighthouses reveal all boats in their row and column. Boats may not be adjacent to other boats or lighthouses in any direction.
Place one tetromino in each region such that all of them are orthogonally contiguous, no tetrominoes of the same type are adjacent, and no 2×2 area of cells is covered.
Using a list of clue sentences and your reading comprehension, find all matching sets of attributes in the grid.
Play Tic-Tac-Toe to a draw against yourself! Given a few starting placements, fill in the grid with Xs and Os such that there are never 3 in a row in any horizontal, vertical, or diagonal direction.
Create a single closed loop which passes through all the circles, but not necessarily all the cells, without crossing itself or branching. Black and white circles have different rules about how the line of the loop passes through them.
Change the top row of numbers into the bottom row of numbers with a series of addition and subtraction operations in each column. Each operation will always result in a single digit.
Fill in numbers from 1 to N (N is the size of the grid) such that there are no duplicates in rows or columns. Circles at intersections have a mathematical operation and a total that is the result for each pair of diagonally adjacent cells.
Connect pairs of white “milk” circles with single black “tea” circles in T shapes that may not touch or cross each other.