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 24-02-2021 Valdas Bieliauskas:

A.Malyuta, A.Balanyuk, R.Matskyavichyus "Tainstva shashechnykh kvadratov" [277], 2015

Ispravleniye zadachi avtora iz “Shashki”(Riga), 4 [1076], 1972

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

Thematic variant: 1. 38-33 16x43 2. 49x38 40-44 3. 45-50 44-49 4. 37-26 49x01 5. 34-43!! 01x20 6. 33-28 20x06 7. 04-22 06x46 8. 47-42 25x34 9. 50-39 34x43 10. 42-38 43x32 11. 26-37 32x41 12. 15-47 [K46; M41].