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Yes, Add The Art of Calculation - Special Offer

Want to get 2x or 3x benefit from your opening preparation while becoming a “super-calculator” at the same time? Get IM Andrey Ostrovskiy's Calculation Blueprint which took him over 16 years to develop... 50% off just $20.

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Catalan - The System for Black - Starter's Package

In this 7-hour course, you will learn everything a player needs to know to jump-start your understanding of Closed Catalan for Black including piece placement, pawn structures, key plans, maneuvers.

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