Error
nogame.lua:814: attempt to index local 'piece' (a nil value)
Traceback
nogame.lua:814: in function 'put_text'
nogame.lua:824: in function 'init'
nogame.lua:35: in function 'Mosiac'
nogame.lua:903: in function <nogame.lua:902>
[C]: in function 'xpcall'