Sisal

The colored mats for the queen are in high demand, and they must be arranged in increasingly ambitious patterns. After choosing a challenge, a number of black discs are placed on the game board according to the specifications of that task.

Each task predefines a specific color combination on the game board that the player must now accomplish by placing all the colored disks.

The challenge is to place the discs in the right way: After starting from any space on the board, you always occupy the next free space. All four orthogonal directions are allowed, but you can't place one disk diagonally adjacent to another. The correct numerical sequence of colored disks must be followed. Squares already occupied, whether by black or colored disks, are ignored.

The current task is completed when all spaces have been occupied, the required color pattern has been correctly filled in and the numerical sequences have been arranged according to the rules.

Warning: very difficult!