My submission to the shared pieces contest

TRICOLE

Equipment

19 hexes
57 markers: 19 of each red, blue and yellow
Scoresheet:

Definitions:

B = blue piece, a blue marker alone on a hex
R = red piece, a red marker alone on a hex
Y = yellow piece, a yellow marker alone on a hex
G = green piece, a blue and a yellow marker on a hex
O = orange piece, a red and a yellow marker on a hex
P = purple piece, a blue and a red marker on a hex
Br = brown piece, blue, red and yellow markers on a hex

Tricole = a line of 3 hexes in a straight row, each with at least
one piece in it. Example tricole: BBB is a line of 3 hexes, each
of which has one blue piece. BBG would be a line of 3 hexes where
one of the hexes (beginning or end, the order is not important)
has a green piece, and the other two have blue piece. BBG is
the same as GBB.

Setup

Arrange hexes in 3 x 3 x 3 grid (like upside down land area of
Settlers of Catan board).

Play

Each player places a marker on the board. No marker may be played
onto a hex where the same color marker already exists.

The game is over when there are no more legal place to play
markers, or when both players pass.

Score

Each time you place a marker, you score 1 point for each
tricole you form if you have not already scored that tricole.
You may only score once per tricole. You may potentially
score many tricoles by placing a single marker.

You do not score for any tricoles with brown pieces.

The potential tricoles are:

BBB BBG BBO BBP BBR BBY BGB BGG BGO BGP
BGR BGY BOB BOG BOO BOP BOR BOY BPB BPG
BPO BPP BPR BPY BRB BRG BRO BRP BRR BRY
BYB BYG BYO BYP BYR BYY GBG GBO GBP GGG
GGO GGP GOG GOO GOP GPG GPO GPP GRG GRO
GRP GYG GYO GYP OBO OBP OGO OGP OOO OOP
OPO OPP ORO ORP OYO OYP PBP PGP POP PPP
PRP PYP RBG RBO RBP RBR RBY RGG RGO RGP
RGR RGY ROG ROO ROP ROR ROY RPG RPO RPP
RPR RPY RRG RRO RRP RRR RRY RYG RYO RYP
RYR RYY YBG YBO YBP YBY YGG YGO YGP YGY
YOG YOO YOP YOY YPG YPO YPP YPY YRG YRO
YRP YRY YYG YYO YYP YYY

Copyright 2003, Yehuda Berlinger