Play and Solve Hard Chess Puzzles - SparkChess

Play and solve Hard Chess Puzzles on SparkChess, the free online chess game. All puzzles have solutions and you can play them live against the computer.

Difficult Chess Puzzles for Advanced Players

How many moves ahead you know it's checkmate? - Quora

SparkChess - Quality, Free Chess Online - 404 Tech Support

Black to Play, Find the Decisive Combination to this Puzzle

I tried to build chess in Terraia! White has mate in 2! : r/Terraria

Viktor Korchnoi vs. Peterson Chess Puzzle - SparkChess

1,000 + Calcudoku sudoku 6x6: Logic puzzles hard - extreme levels

Play and Solve Hard Chess Puzzles - SparkChess

Is this M2 harder to spot than you'd think or is it just me? : r/chess

Edward Lasker vs. George Alan Thomas Chess Puzzle - SparkChess