DIAMOND VS LOST CITIES

Diamond is a two-player abstract strategy board game invented by Larry Back. The invention was inspired by the game Kensington, which uses a similar board pattern and game objective. Rules for Diamond were conceived in 1985 and finalized in 1994. Diamond introduces a new board geometry and neutral pieces, with the aim of enhancing the game dynamic and lowering the potential for draws. Diamond was featured in the February 2013 issue of Games magazine. The Diamond gameboard consists of interlocking squares and triangles. White and Black each control 12 game pieces of their own color. Neutral pieces (red-colored in the diagrams) enter the game via captures. The pieces are played on the line intersections (called points, as in Go). White and black (but not red) pieces can move along straight lines to adjacent unoccupied points. A player wins by being the first to occupy all four corners (points) of a board square with their pieces. Capturing moves are possible in the Movement phase. If the points of a triangle contain exactly one white and one black piece, either player can capture the opponent piece by occupying the remaining open point ("cornering" the enemy piece on the triangle). The captured piece can be cornered on one triangle (see Example 1), or simultaneously cornered on two different triangles (Example 4). The captured piece is immediately removed from the game and replaced on its point by a neutral piece. If a move simultaneously corners two opponent pieces on two different triangles, then neither enemy piece is captured (Examples 2 and 3). A piece can move safely to a triangle point even if the other two points of the triangle are occupied by enemy pieces (Example 5).

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Lost Cities is a 60-card card game, designed in 1999 by game designer Reiner Knizia and published by several publishers. The objective of the game is to mount profitable expeditions to one or more of the five lost cities (the Himalayas, the Brazilian Rain Forest, the Desert Sands, the Ancient Volcanos and Neptune's Realm). The game was originally intended as a 2-player game, but rule variants have been contributed by fans to allow 1 or 2 further players, causing Reiner Knizia himself to later provide semi-official 4-player rules. Lost Cities is a fast-moving game, with players playing or discarding, and then replacing, a single card each turn. Cards represent progress on one of the five color-coded expeditions. Players must decide, during the course of the game, how many of these expeditions to actually embark upon. Card-play rules are quite straightforward, but because players can only move forward on an expedition (by playing cards which are higher-numbered than those already played), making the right choice in a given game situation can be quite difficult. An expedition that has been started will earn points according to how much progress has been made when the game ends, and after three rounds, the player with the highest total score wins the game. Each expedition that is started but not thoroughly charted incurs a negative point penalty (investment costs). Interaction between players is indirect, in that one cannot directly impact another player's expeditions. However, since players can draw from the common discard piles, they are free to make use of opposing discards. Additionally, since the available cards for a given expedition are finite, progress made by an opponent in a given color can lead to difficulty making progress in that same color. The game's board, while designed to supplement the theme, is optional and consists only of simple marked areas where players place discards. If Lost Cities had four expeditions instead of five, it could be played with a standard deck of playing cards. When doing so, the face cards would represent investment cards, with numbered cards two through ten serving as the expedition progress cards.

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