Nonokari

Solution

by Evan Chen and Olga Vinogradova

Tech: Brian Shimanuki and Evan Chen

Building further upon the previous Tetretrari, this time we must place the Tetris pieces andthe light bulbs into an initially empty grid.

The clues also take a different form: here the clues are Nonogram clues with additional *'s added that represent the Akari light. The Nonogram clues still respect gaps, so for example 2* 1 represents a set of two consecutive filled cells, followed immediately by a light bulb and then some empty cells before a filled cell. Despite the fact that no Tetris letters are present at all in this puzzle, we are still required to place Tetris pieces rather than simply marking cells as black or white, and this information is necessary in order to deduce the unique solution (for example, otherwise the filled cell in the bottom row could be moved to other locations).

The unique solution is shown below.

=""3*1*="3*1*"*2 *="*2 *"=""=""=""=""
2* 1="2* 1"OO💡L
7="7"OOSSLLL
3 *1="3 *1"LSS💡I
1* 1="1* 1"L💡I
2 2 1="2 2 1"LLLLI
* 1 1="* 1 1"💡LI
* 1 *="* 1 *"💡L💡