r1bnk2r/p1p1n3/4p3/1p1P1Q1p/3PqB2/P6p/P1KNPPP1/RN3B1R w kq - 3 20
FEN state: r1bnk2r/p1p1n3/4p3/1p1P1Q1p/3PqB2/P6p/P1KNPPP1/RN3B1R w kq - 3 20 ; Best move: f5e4
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7 and black knight at e7. Black pawn at e6. Black pawn at b5, white pawn at d5, white queen at f5 and black pawn at h5. White pawn at d4, black queen at e4 and white bishop at f4. White pawn at a3 and black pawn at h3. White pawn at a2, white king at c2, white knight at d2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 3. Full move number is 20. White to move.