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 24-02-2021 Valdas Bieliauskas:

Category B, PWCZ II, 2017

Ispravleniye svoyey zadachi iz knigi A.Malyuta, A.Balanyuk, R.Matskyavichyus "Tainstva shashechnykh kvadratov" [474], 2015

Other thematic variants of this Zadacha, please, see below:

Thematic variant: 1. 12-21 06-11 2. 21-16 11-17 3. 01-18 17-21 4. 44-39 21x25 5. 18-27 25-30 6. 40-35 30-34 7. 35-30 34x25 8. 16-11 25-30 9. 11-44 30-35 ( 9...30-34 10. 45-40 34x45 11. 44-50 [K36; M45]; ) 10. 45-40 [K36; M35].