In the final puzzle of the Tetris sequence, all the mechanics from previous puzzles are brought in: clues of every type seen before appear, and we must place both the Tetris pieces and the light bulbs.
Despite the intimidating size of the grid which is completely empty to start, the plethora of given information actually makes it fairly easy to place pieces. (For example, there is only one O piece, so it can be placed right away. After that, one might place the I piece in the rightmost column.)
The completed grid is shown below.
JTL="JTL" | JTL="JTL" | I="I" | IJ="IJ" | JTIJ="JTIJ" | JTI="JTI" | SJTI="SJTI" | SO="SO" | SSZO="SSZO" | SZZ="SZZ" | STZ="STZ" | JTZ="JTZ" | IJ="IJ" | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SSI="SSI" | 💡 | S | S | S | S | I | *4 1="*4 1" | |||||||
SSI="SSI" | 💡 | S | S | S | S | 💡 | I | *4* 1="*4* 1" | ||||||
JI="JI" | 💡 | J | J | J | 💡 | I | * 3* 1="* 3* 1" | |||||||
JJI="JJI" | J | J | 💡 | J | 💡 | I | 2 *1 *1="2 *1 *1" | |||||||
JTZJ="JTZJ" | J | 💡 | T | T | T | 💡 | Z | J | J | 1* 3 *1 2="1* 3 *1 2" | ||||
JTIZJ="JTIZJ" | J | 💡 | T | I | Z | Z | J | 💡 | 1 * 2 2 1*="1 * 2 2 1*" | |||||
TIZJ="TIZJ" | T | 💡 | I | Z | J | 1 *1 1 1="1 *1 1 1" | ||||||||
TIIT="TIIT" | T | T | I | I | I | I | I | 💡 | T | 7 * 1="7 * 1" | ||||
TIOT="TIOT" | T | 💡 | I | O | O | T | T | 1 * 3 2="1 * 3 2" | ||||||
JOZT="JOZT" | 💡 | J | 💡 | O | O | Z | Z | T | * 1 *5="* 1 *5" | |||||
LJZ="LJZ" | L | L | 💡 | J | 💡 | Z | Z | 2 *1 *2="2 *1 *2" | ||||||
LJ="LJ" | 💡 | L | J | J | 💡 | *1 2 *="*1 2 *" | ||||||||
L="L" | L | 💡 | 1 *="1 *" | |||||||||||
*6*1*="*6*1*" | 1* 1 3="1* 1 3" | ="" | 1 *1*="1 *1*" | ="" | ="" | *8*="*8*" | ="" | ="" | 2 2 * 1*="2 2 * 1*" | ="" | *7*="*7*" | 5*="5*" |