Eiji Harada

Soroban is the Japanese abacus. In this app, you can enjoy addition and subtraction game and practic

Mathematical puzzle using matches! You can move one match and correct the numerical formula made of

The objective of this puzzle is to fill a 6x6 grid with numbers so that each column, each row contai

Peg-Solitaire is a classical board puzzle. Jump over an adjacent ball and the jumped ball is removed

The objective of this puzzle is to clear balloon. If you move the girl and release, she catch and re

The objective of this puzzle is to sum up bath's numbers to 100. You can slide a bath and sum up

The objective of this sliding puzzle is to clear men with loose trousers. If there is a 3 match of t

You can move one match and correct the numerical formula.

A sliding puzzle whose objective is to slide the largest elephant panel to the EXIT.

The objective of this puzzle is to clear characters within the time required. If you touch horizonta