307.--THE COLOURED COUNTERS.

From Amusements in Mathematics by Henry Ernest Dudeney.

The counters may be arranged in this order:--

R1, B2, Y3, O4, GS. Y4, O5, G1, R2, B3. G2, R3, B4, Y5, O1. B5, Y1, O2, G3, R4. O3, G4, R5, B1, Y2.

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307.--THE COLOURED COUNTERS.: Amusements in Mathematics by Henry Ernest Dudeney | amphi