The Times Ultimate Killer Su Doku Book 14: 200 of the Deadliest Su Doku Puzzles
8,26 €
Prepare yourself for the toughest Su Doku challenge there is. These diabolically difficult Ultimate Killer Su Doku puzzles will really put your brainpower to the test as you 'warm up' with the 100 Deadly Killer puzzles before steeling yourself to take on the 100 Extra Deadly Su Dokus.
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