rn2q1nr/1p4b1/3p1k1p/p1p1p1p1/3P1Nb1/PP2BN1B/2PKP2P/RQ5R w - - 6 21
FEN state: rn2q1nr/1p4b1/3p1k1p/p1p1p1p1/3P1Nb1/PP2BN1B/2PKP2P/RQ5R w - - 6 21 ; Best move: f4d5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at e8, black knight at g8 and black rook at h8. Black pawn at b7 and black bishop at g7. Black pawn at d6, black king at f6 and black pawn at h6. Black pawn at a5, black pawn at c5, black pawn at e5 and black pawn at g5. White pawn at d4, white knight at f4 and black bishop at g4. White pawn at a3, white pawn at b3, white bishop at e3, white knight at f3 and white bishop at h3. White pawn at c2, white king at d2, white pawn at e2 and white pawn at h2. White rook at a1, white queen at b1 and white rook at h1. Both players have exhausted their castles. Half move number is 6. Full move number is 21. White to move.