248 real-game puzzles in this collection
What is a mate in 4?
Longer forced mates from real games, usually a sacrifice, a king hunt and a precise finish. Every branch is mate — finding the order is the work.
How to spot it
Divide the line into phases: strip the shelter, drive the king, deliver mate. Verify the most stubborn defense at each fork before starting.
What this set trains
Deep forcing-line calculation with a guaranteed payoff — the best stamina training tactics can offer.
Foundation: 8Developing: 60Challenging: 74Advanced: 106
challenging
Rating 1740
deflectionendgameinterference
challenging
Rating 1756
attractionkingsideAttackmate
challenging
Rating 1758
endgamematemateIn4
challenging
Rating 1762
attractionendgamemate
challenging
Rating 1766
attractionkingsideAttackmate
challenging
Rating 1772
discoveredCheckdoubleCheckendgame
challenging
Rating 1777
endgamematemateIn4
challenging
Rating 1779
endgamemastermate
challenging
Rating 1803
clearancedeflectionmate
challenging
Rating 1809
advancedPawnforkmate
challenging
Rating 1818
kingsideAttackmatemateIn4
challenging
Rating 1819
advancedPawnendgamemate
challenging
Rating 1824
attractiondeflectionendgame
challenging
Rating 1837
backRankMatedeflectionmate
challenging
Rating 1840
epauletteMatematemateIn4
challenging
Rating 1842
attractionhangingPiecekingsideAttack
challenging
Rating 1846
attractionmatemateIn4
challenging
Rating 1862
attractionkingsideAttackmate
challenging
Rating 1865
deflectionkingsideAttackmate
challenging
Rating 1865
backRankMatedeflectionendgame
challenging
Rating 1866
discoveredCheckdoubleCheckkingsideAttack
challenging
Rating 1874
attractionkingsideAttackmate
challenging
Rating 1897
endgameexposedKingmate
challenging
Rating 1901
balestraMateendgamekingsideAttack
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