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Source: spielbox magazine (2015):
PUZZLE STRIKE is a card game played with cardboard chips rather than cards. It simulates a puzzle video game called 'Puzzle Fighter' that was based on fighting games like Street Fighter.
On this promo board are 3 additional types of Puzzlechips that can be added to the base game.
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From the Sirlin Games website:
Five copies of each of three new chips, to expand Puzzle Strike's gameplay:
Combinatorics assists your rushdown.
Dashing Strike helps you control your pile size while filling your opponent's gem pile.
Custom Combo is an explosion of 15 actions, enabling insane combos!