r2k2nr/1b3ppp/p1p5/1pP2P2/PPnp1RP1/8/3PN2P/1NBK1B1R w - - 0 21
FEN state: r2k2nr/1b3ppp/p1p5/1pP2P2/PPnp1RP1/8/3PN2P/1NBK1B1R w - - 0 21 ; Best move: f4d4
The current state of the chess board is: Black rook at a8, black king at d8, black knight at g8 and black rook at h8. Black bishop at b7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6 and black pawn at c6. Black pawn at b5, white pawn at c5 and white pawn at f5. White pawn at a4, white pawn at b4, black knight at c4, black pawn at d4, white rook at f4 and white pawn at g4. White pawn at d2, white knight at e2 and white pawn at h2. White knight at b1, white bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.