Fifty Moves: Chess Endgames

You outplay your opponent for 40 moves — then draw a won endgame. Or you defend for hours, then lose one you could hold. Endgame technique is the one skill almost nobody trains, and it quietly decides rated games. Fifty Moves is built to fix exactly that. Every puzzle is a real endgame position — no openings, no middlegames. The brand name references the 50-move rule because endgames are where it matters. WHAT YOU GET: • 100,000+ endgame puzzles, with full stats and Glicko-2 rating • Reference chapter: Glossary, Tactical Motifs, Checkmate Patterns, Endgame Studies, and Help • Hyperlinked glossary — tap any term in an example to read its definition • Curated puzzle collections: Practice, Motifs, Checkmates, Studies, Mistakes • Stockfish 18 engine analysis on every position • Syzygy 7-piece + op1 8-piece tablebase lookups • Detailed stats — accuracy, ratings progression • Global rankings WHY ENDGAMES? Most players spend 90% of their study on openings. But endgames decide games — you win the ones you should win and save the ones you should draw. Strong endgame technique banks more rated points than any opening trick. Fifty Moves is built so that 10 minutes a day in the right rating range moves your endgame skill measurably. COMING SOON: • Full theory course library by rating band (0-1400, 1400-1600, 1600-1800, 1800-2000, 2000-2200, 2200+) • 8 training modes (Learn Coordinates, Memory Challenge, Tactical Streak, Position Evaluation, Time Pressure, Win in 50 moves, Hold a Draw, Blindfold chess) Contact: [email protected]