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Toshihisa Suga
Four by four - AnimalsAlternative versions of Tsukuda square with a several animals instead of coloured or numbered pieces.
Four by Four (spanish)Alternative version of the hard Tsukuda Square, made for the spanish market.
itSimilar to Tsukuda's Square. Marketed in Britain.

Tsukuda Mdamde (grey)A small version of the Tsukuda Square depicting an unknown comic character.
Tsukuda Mdamde (purple)A small version of the Tsukuda Square depicting an unknown comic character.
Tsukuda Mdamde (white)A small version of the Tsukuda Square depicting an unknown comic character.

Tsukuda Popeye (blue)A small version of the Tsukuda Square depicting popeye.
Tsukuda Popeye (green)A small version of the Tsukuda Square depicting popeye.
Tsukuda Popeye (white)A small version of the Tsukuda Square depicting popeye.

Tsukuda's Square (Coca Cola)Alternative versions of Tsukuda square with the logo of the Coca Cola company.
Tsukuda's Square (easy)The easy of three versions, depicting four sets with four mono-coloured pieces each.
Tsukuda's Square (hard, letters)A remake of the hardest of three versions, with letters A-P.

Tsukuda's Square (hard)The hardest of three versions, depicting numbers 1-16.
Tsukuda's Square (medium)The medium of three versions, depicting two-coloured pieces split diagonally.

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