If you guys want challenge, try the 2-4 with 8x8 or even 7x7. Surprisingly, the 1-19 option is easier than this.
Reviews for "Rullo"
I would like to see a sum of marked numbers in each row and column. That would be really helpful.
Pretty fun, but there seems to be a glitch wherein if you 'lock' and then unlock a line, it will remain untouchable, thus ruining the board. I'm on Google Chrome if that helps.
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