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puzzles! all variants

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1. Introduction
2. Vary hard puzzle Mate in 11 (standered)
3. racing kings puzzle black win

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Hikaru's games

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1. Hikaru Vs Magnus

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kathhhh's Study

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1. Chapter 1

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kathhhh's Study

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1. Chapter 1

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analasis / q&a

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1. Chapter 1
2. Chapter 2

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