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Many instructive lessons on important strategic themes to become a professional
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Fundamental course with 1500 puzzles for beginners raises your tactical level up
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Course for club players (1600-2000) based on famous textbook by V. Golenishchev
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Theory and playing hooks in the most sharp and deciding variations of French Def
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1000 high-quality puzzles for ELO 2000
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1000 high-quality puzzles for ELO 2400
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The most sharp and deciding variations of King's Indian Defense
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The most sharp and deciding variations of the Grünfeld Defense
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Learn how to solve Sudoku puzzles and play over 1500 different ones as you go.
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Board Money can be used as a "Monopoly" Banker
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Knowledge is never useless!
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The best designed Chess Clock. Free, easy and configurable. No ads! ♟️
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Stack the Countries makes learning world geography fun!
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This is the unlimited, all-unlocked version of Colonizer.
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Track score in various card and board games like Star Realms, MTG etc.
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Spend a little time with the classic number puzzle: 2500 puzzles over 5 levels!