Chess960 puzzles: Discovered check
The moving piece opens a check — and is free to grab anything meanwhile.
With a discovered check the moving piece unmasks a check from the piece standing behind it. While the king deals with the check, the piece that moved grabs whatever it likes, free of charge. Look for your long-range piece on a line with the enemy king, with exactly one of your own pieces in between. The rule: among all the ways to step aside, pick the one that captures or attacks the most expensive loot.
392 puzzles
Attack on the uncastled king: pawn to g6 (f5)
Attack on the uncastled king: pawn to e6 (f5·10)
Attack on the uncastled king: knight to a7 (c6)
Attack on the uncastled king: pawn to d6 (c5·21)
Attack on the uncastled king: pawn to c6 (d5·23)
Winning blow: pawn to e7
Attack on the uncastled king: pawn to d5 (e4·109)
Winning blow: knight to e7 (g6)
Winning blow: knight to d2 (b3)
Winning blow: pawn to b6 (a5·5)
Winning blow: knight to e6 (g5·3)
Attack on the uncastled king: pawn to b6 (b5)
Winning blow: rook to d7 (f7)
Attack on the uncastled king: knight to f4 (d3·12)
Winning blow: queen to d5 (b5)
Winning blow: knight to a5 (c4·2)
Winning blow: pawn to e6 (f5·2)
Winning blow: pawn to g7 (f6)
Winning blow: pawn to c6 (b5·2)
Winning blow: pawn to c5 (c4)
Winning blow: knight to g2
Winning blow: rook to g7 (g2)
Winning blow: knight to f6 (e4·4)
Winning blow: pawn to e4 (f3·5)
Tactics
BatteryCheck chaseClearanceDecoyDeflectionDiscovered attackDouble checkWinning exchangeBishop forkKnight forkPawn forkQueen forkRook forkRoyal forkHanging pieceInterferenceOverloadAbsolute pinRelative pinWin the pinned piecePromotionQueen trapQuiet moveRemove the defenderSacrifice attackSkewerTrapped pieceUnderpromotionWinning blowX-rayZwischenzug