ISBN-13: 9780008241193 / Angielski / Miękka / 2018 / 288 str.
ISBN-13: 9780008241193 / Angielski / Miękka / 2018 / 288 str.
Specially compiled to provide the most deadly Su Doku challenge, this is the only volume for Su Doku enthusiasts who need a puzzle that really tests their mettle.