+**1d2** represents a single roll of a two-sided die, yielding a 1 or a 2. Though physical 1d2 dice are uncommon, this notation frequently appears in [Tabletop RPG](/wiki/Tabletop_RPG) systems for binary choices. It is often simulated using a [Coin flip](/wiki/Coin_flip) or by assigning values from another die roll.
+## See also
+- [Die roll](/wiki/Die_roll)
+- [Randomness](/wiki/Randomness)
+- [D6](/wiki/D6)
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