Moddable Chess · Variant 30 of 54

Knightmate

8×8Board 2Players

Knightmate

The Knight becomes the royal piece. The King becomes a commoner that moves like a knight. A complete role reversal that transforms strategy.

Knightmate — starting position a b c d e f g h 8 7 6 5 4 3 2 1

Knightmate — starting position

Setup

Board: Standard 8×8.

Setup (FEN): rkbqnbkr/pppppppp/8/8/8/8/PPPPPPPP/RKBQNBKR

Pieces

Pieces: Standard chess pieces, but with swapped roles:

  • Knight — the royal piece. Must be protected from checkmate. Sits on e1/e8 (where the King normally starts).
  • King — moves like a knight (L-shape). Not royal — can be captured freely. Starts on b1/g1 and b8/g8.

Rules

All standard chess rules apply, except:

  • The Knight is subject to check and checkmate (it is royal).
  • The King is an ordinary piece that moves in knight-jumps.
  • Castling works with the royal Knight and the Rooks.
  • Pawns may promote to King (the non-royal piece) but not to Knight (the royal piece).

Win Condition

Checkmate the opponent’s royal Knight.

Strategy

The royal Knight is far more mobile than a standard King, which makes it harder to trap but also means it can overextend. Kings (moving as knights) are powerful attacking pieces. Queen + King combinations create devastating fork threats.

Attribution

Bruce Zimov, 1972. Public domain.