LUMBARD, Circuit Judge:
Norman Silverstein appeals from a January 6, 1982, order of Judge Stewart in the Southern District of New York dismissing his petition for a writ of habeas corpus. Silverstein is imprisoned in the New York State correction facility 'at Auburn, serving a nine-to-eighteen year sentence for armed robbery. The heart of his claim is that he was incompetent to stand trial and that his guilty plea was thus constitutionally void. The district court held, however, that relief on this claim was barred because Silverstein had neglected to raise the issue on his direct appeal. We reverse and direct that the writ be issued.
I.
Silverstein is, allegedly, retarded and illiterate. He has an I.Q. of 74 and, according to one of his doctors, the mental age of a seven-year-old. He has not developed intellectually beyond the second grade level. He has a long institutional history, having been committed to Rockland State Hospital three times and held for observation at least once at Bellevue and Mid-Hudson State Hospitals. He has been diagnosed as possibly schizophrenic.
In 1976, Silverstein was arrested and indicted in Bronx County on several charges growing out of three “gunpoint” robberies allegedly committed with an accomplice. He was released on bail, defaulted and was arrested again on March 4, 1977.
One month later, about April 6, 1977, pursuant to court order, Silverstein was examined by two psychiatrists. Both agreed he was incompetent to stand trial. On April 12th Justice Goldfluss, of the New York Supreme Court in Bronx County, accepted the psychiatrists’ report. The court stated for the record, “having examined such .... report, .... it now appears to my satisfaction that the defendant as a result
of the mental disease or defect lacks capacity to understand the proceedings against him or to assist in his defense.” Accordingly, the court ordered Silverstein detained at Bellevue, pending transfer by the State Department of Mental Hygiene.
One week later, .on April 19th, the Mid-Hudson Psychiatric Center informed the Bronx County district attorney that a third psychiatrist had found Silverstein competent to stand trial, allegedly on the basis of one fifteen-minute interview. In proceedings on May 20th, Justice Goldfluss accepted this third psychiatric report. A few moments later, per an agreement with the Bronx County district attorney, Silverstein pled guilty to one count of robbery in the first degree, armed robbery, under N.Y. Penal Law § 160.15(2) (McKinney 1975). All remaining charges were dropped. Neither the court nor Silverstein’s counsel suggested that the disagreement between the three psychiatrists be resolved at a hearing, as required by N.Y.Crim.Proc.Law § 730.-30(4) (McKinney 1971).
Indeed, no hearing into Silverstein’s competence to stand trial or to make a plea bargain was ever held.
The sentencing proceeding on June 21, 1977, again demonstrated Justice Goldfluss’ knowledge that Silverstein “has had without question a psychiatric history,” including a series of institutionalizations. The court expressed its “feeling that this defendant has a mental problem but the community must be protected against a defendant who [is] ... a dangerous person and I am [,] in sentencing this defendant [,] making a specific recommendation .. . that [he] receive[ ] psychiatric care. In my opinion it is essential because .. . someday he will be discharged [and] we must make every effort to see that he is not discharged in the same mental manner in which he goes in.” The court sentenced Silverstein to nine to eighteen years in prison.
Silverstein appealed his conviction. The psychiatric report finding him incompetent to stand trial apparently did not become part of the record.
Appellate counsel, who had not represented the defendant at trial, was allegedly never made aware of the conflicting psychiatric opinion concerning Silverstein’s competence. In any event, appellate counsel failed to urge incompetence as a ground for vacating the conviction. Counsel failed to argue that the trial court had not complied with the procedural requirements of § 730.30 for determining competence. Counsel appealed only on the ground that the sentence was excessive in light of the defendant’s diminished mental capacity and his lack of intent to harm his victims. The Appellate Division affirmed without opinion, 65 A.D.2d 679, 409 N.Y. S.2d 324 (1978), and leave to appeal to the Court of Appeals was denied (Nov. 28, 1978).
On September 20, 1980, Silverstein, acting
pro se,
commenced the series of proceedings that culminated in this appeal. He petitioned the New York Supreme
Court, Bronx County, under N.Y.Crim. Proc.Law § 440.10 (McKinney 1971) to vacate his conviction. He argued,
inter alia,
that he had never been aware of his right to a hearing on competence.
In any event, he argued, “petitioner although an adult is no more than a seven year old child incapable of understanding” his constitutional rights. Thus, “petitioner^] an illiterate with the mentality of a seven year old[,] waved [sic] no such rights and [neither] counsel nor court had any right to wave [sic] his rights.”
The state argued in response that Silver-stein’s petition should be dismissed under § 440.10(2)(c), which requires denial of relief where the grounds for setting aside the conviction could have been raised on direct appeal but were not. The state argued specifically that because appellate counsel had been provided with a copy of the psychiatric report finding the defendant competent, counsel could have raised on appeal the question of defendant’s competence to stand trial.
Justice Goldfluss, who had first found defendant incompetent, then competent, and then accepted the guilty plea, also heard the § 440.10 motion to set aside the conviction. The court’s one-sentence opinion dismissing the petition tacitly rejected the state’s procedural default argument, resting the dismissal instead on the factually erroneous ground that “[t]he issues presented by the defendant have already been determined by the Appellate Division.” .
On December 29, 1980, Silverstein, again acting
pro se,
filed his second § 440.10 petition. Silverstein reiterated his claims that he had been incompetent to stand trial and that he had been denied his right to a proper determination of his competence under N.Y.Crim.Proc.Law art. 730 (McKinney 1971). Silverstein also complained that counsel had failed to follow his suggestions to contest on appeal his competence to stand trial.
The state filed no opposing papers. Justice Goldfluss dismissed the petition on the ground that it contained “nothing new or novel that hasn’t been brought to the attention of either this court or the Appellate Division.” The court made explicit its earlier implicit holding that the defendant’s mental capacity had been “clearly brought to the attention of the Appellate Division.”
On January 8,1981, Silverstein filed a
pro se
petition for a writ of habeas corpus in the District Court for the Southern District of New York. He subsequently retained counsel, who filed supporting papers. Silverstein claimed five grounds for relief: First, that the denial of a competency hearing and the acceptance of his guilty plea when he was incompetent to stand trial deprived him of due process; second, that the court improperly accepted his plea without determining whether he had committed all the elements of the crime; third, that he had been deprived of effective assistance of counsel on appeal and at trial; fourth, that by pleading guilty he had unknowingly waived his constitutional rights to confrontation, trial by jury, etc.; and fifth, that his sentence had been based upon misrepresentations in his presentence report.
The district court refused to consider the fifth claim, which had not been raised as a constitutional claim in state proceedings. The court found that the remaining four claims had been exhausted, and this finding is not disputed on appeal.
The state argued that
Wainwright v. Sykes,
433 U.S. 72, 97 S.Ct. 2497, 53 L.Ed.2d
594 (1977), bars the federal court from reaching the merits of these claims, because the state court had denied relief on an independent and adequate state procedural ground — Silverstein’s failure to raise the issues on direct appeal. In addressing this argument, the district court noted that Justice Goldfluss’ express reason for denying relief — that the issues had already been determined on direct appeal — was erroneous. To determine the state court’s “precise
ratio decidendi’
for denying relief, the district court looked to the papers filed by the state in the first § 440.10 proceeding. As noted above, the state had argued that Silverstein was guilty of procedural default under N.Y. Crim.Proc.Law § 440.10(2)(e) in failing to raise the issues on direct appeal. On this basis, the district court concluded that the state court must have been “thinking along procedural lines,” and that this procedural ruling barred federal consideration of Silverstein’s claims.
II.
Here too the state urges that we may not reach the merits, because this once
pro se
petitioner has not successfully wound his way through the labyrinthine procedural requirements surrounding federal habeas relief. We disagree.
The state argues, somewhat mysteriously, that the district court “blatantly ignored the Supreme Court’s interdict” by “outright refus[ing] to adhere to the doctrine of
Rose [v. Lundy],”
455 U.S. 509, 102 S.Ct. 1198, 71 L.Ed.2d 379 (1982), a case decided three months
after
the district court filed its decision.
Rose v. Lundy
requires the district courts to dismiss any habeas petition containing both exhausted and unexhausted claims; after such a dismissal, the petitioner would be free to strike from his papers all references to the unexhausted claims and to resubmit the petition to the federal court. However, following this Circuit’s pre-Rose procedure, the district court simply refused to consider in any way the unexhausted claim, while going on to pass on the remaining grounds for relief.
We are confident that had
Rose
been the law, the district court would have required either the refiling of an amended petition or the substantial equivalent. However, because the state “failed” to raise the
Rose
issue before the district court,
the district court did not follow the precise dismissal litany. And thus the state now urges that we vacate the opinion below and remand the case so that the district court can formally dismiss the petition,' Silver-stein can then amend and refile his petition, the district court may then reconsider the amended petition and come to the same decision and send the case back to us.
We see no merit in this proposal. We hold that the
Rose
requirements were satisfied when the petitioner stated in his brief, in oral argument, and in a letter to this court that he was withdrawing his unexhausted claim and all references to the elements of that claim in his briefs and in his habeas petition.
See Rock v. Coombe,
694 F.2d 908 (2d Cir.1982),
petition for cert. denied,
- U.S.-, 103 S.Ct. 1773, .76 L.Ed.2d 345 (1983);
Guthrie v. Warden,
683 F.2d 820, 821 n. 1 (4th Cir.1982).
In
Rock v. Coombe, supra,
this court rejected a suggestion similar
to
the state’s proposal where the district court, in a decision rendered after the Supreme Court decided
Rose,
had “ignored the dictates of
Rose v. Lundy
and dealt with the exhausted claims on the merits,”
id.
at 914. In this situation, we permitted the petitioner to comply with
Rose
by withdrawing and abandoning his unexhausted claims at the appellate level. We saw “no reason to require the court to go through the jejune-exercise of dismissing the petition and requiring that a new piece of paper be filed.”
Id.
Any other result would have construed the petitioner’s right to narrow his petition in order to submit only his exhausted claim “as a right encased in rigid formality.”
Id.
We believe that this appeal from a decision issued prior to
Rose
presents, if anything, an even stronger case for applying the total exhaustion rule by requiring the petitioner to withdraw his unexhausted claims at the appellate level.
Since Silverstein’s exhausted and. unexhausted claims are plainly in no way intertwined,
see Rose, supra
102 S.Ct. at 1204, a more formal retroactive application of
Rose
would neither serve the purposes underlying the total exhaustion rule nor so “encourage state prisoners to seek full relief first from the state courts,”
id.
102 S.Ct. at 1203, as to justify an otherwise pointless and burdensome exercise in paper shuffling.
III.
The State next argues that Silver-stein’s failure to challenge his competence on his direct appeal constitutes a waiver of his constitutional rights under N.Y.Crim. Proc.Law § 440.10(2)(c). The state court allegedly denied collateral relief after finding waiver under the statute, and, the argument goes, this finding constitutes an independent and adequate state ground immune from attack in a federal court.
Wainwright v. Sykes,
433 U.S. 72, 97 S.Ct. 2497, 53 L.Ed.2d 594 (1977);
Forman v. Smith,
633 F.2d 634 (2d Cir.1980),
cert. denied,
450 U.S. 1001, 101 S.Ct. 1710, 68 L.Ed.2d 204 (1981). We cannot agree. First, the New York courts could not constitutionally apply a procedural default rule to a possibly incompetent defendant. Second, the state’s argument rests on an erroneous interpretation of New York criminal procedure. Finally, no New York court found Sil ver stein guilty of procedural default.
A.
In
Pate v. Robinson,
383 U.S. 375, 86 S.Ct. 836, 15 L.Ed.2d 815 (1966), the Supreme Court expressly denied that a habeas petitioner could have waived his right to a competency hearing by failing to request one at trial.
Id.
at 384, 86 S.Ct. at 841. For “it is contradictory to argue that a defendant may be incompetent, and yet knowingly or intelligently ‘waive’ his right to have the court determine his capacity to stand trial.”
Id.; see Suggs v. LaVallee,
570 F.2d 1092, 1116-17 (2d Cir.),
cert. denied,
439 U.S. 915, 99 S.Ct. 290, 58 L.Ed.2d 263 (1978);
United States ex rel. Roth v. Zelker,
455 F.2d 1105, 1108 (2d Cir.),
cert. denied,
408 U.S. 927, 92 S.Ct. 2512, 33 L.Ed.2d 340 (1972). Since the trial court in
Pate
had been alerted to the doubts as to the defendant’s sanity, the Supreme Court rejected the claim that “no duty rested upon [the trial court] to order a hearing
sua sponte.”
383 U.S. at 378, 86 S.Ct. at 838.
Indeed, the trial court’s failure to inquire into defendant’s competence on its own motion “deprived [the petitioner] of his constitutional right to a fair trial.”
Id.
at 385, 86 S.Ct. at 842.
The question presented here is whether the waiver rule of
Wainwright v. Sykes, supra,
and
Forman v. Smith, supra,
applies to the right recognized by
Pate v. Robinson.
We conclude that it does not.
Wainwright
was premised on the defendant’s violation of a constitutionally sound state procedural rule placing solely on the defendant the burden of contemporaneously objecting to the introduction of evidence. In contrast to
Pate, Wainwright
expressly rejected an argument that the Constitution both barred the state from applying such a rule and required the state to place the burden of objecting to the introduction of an involuntary confession on the trial court.
Wainwright, supra,
433 U.S. at 85-87, 97 S.Ct. at 2505-06. The Court held that under the Constitution the defendant merely had the right “at some stage in the proceedings
to object
to the use of the confession and to have a fair hearing and a reliable determination on the issue of voluntariness.”
Wainwright, supra,
at 86, 97 S.Ct. at 2506 (emphasis in original) (quoting
Jackson v. Denno, supra
[378 U.S. 368] at 376-77 [84 S.Ct. 1774, 1781, 12 L.Ed.2d 908].) As to such a right, the state was entitled to treat the failure to object as a waiver.
However, Wainwright’s waiver rule cannot apply when the basis for attacking the conviction is that the defendant is incompetent to stand trial, and thus incompetent to “waive” his rights.
Zapata v. Estelle,
588 F.2d 1017, 1021 (5th Cir.1979). Thus, when the trial court neglects its duty to conduct a hearing on competence,- the defendant’s failure to-object or to take an appeal on the issue will not bar collateral attack.
Hayes v. United States,
468 F.Supp. 179, 184 (S.D. Tex.1979).
B.
We do not believe that the New York courts would reach a contrary result. For New York law provides the procedural protection
Pate
requires. The New York Court of Appeals has held that when the demeanor of the defendant or other evidence raises doubt as to his competence to stand trial, it is the trial court’s duty to order a hearing
sua sponte. People v. Gonzalez,
20 N.Y.2d 289, 293, 282 N.Y.S.2d 538, 229 N.E.2d 220 (1967),
reaffirmed in People v. Armlin,
37 N.Y.2d 167, 171, 371 N.Y.S.2d 691, 332 N.E.2d 870 (1975);
see People v. Smyth,
3 N.Y.2d 184, 187, 164 N.Y.S.2d 737, 143 N.E.2d 922 (1957). And New York Criminal Procedure Law § 730.30(4) specifically requires the court to order a hearing on its own motion when, as here, the examining psychiatrists disagree on the defendant’s competence.
See also People v. Bradt,
77 A.D.2d 795, 430 N.Y.S.2d 742 (1980) (error not to order hearing where reports finding defendant competent were conclusory and where evidence suggested incompetence);
People v. Candella,
49 A.D.2d 800, 801, 373 N.Y.S.2d 240 (1975) (same).
Thus, we are convinced that the New York courts would reject the argument that, by failing to raise the issue on direct appeal, Silverstein forfeited or waived his right to contest his competence to stand trial.
Indeed, citing
Pate
v.
Rob
inson,
the New York Court of Appeals has held that neither the failure to object at trial to inadequacies in the determination of competency nor the failure even to raise the issue at trial will bar the defendant from raising the issue for the first time on appeal.
People v. Armlin, supra,
37 N.Y.2d at 170-72, 371 N.Y.S.2d 691, 332 N.E.2d 870;
People v. Bangert,
22 N.Y.2d 799, 800, 292 N.Y.S.2d 900, 239 N.E.2d 644 (1968). Thus, if the trial court has been alerted to the defendant’s mental problems and fails to order a hearing on competence, the conviction will be set aside on collateral review, even though the defendant failed to challenge his competence at trial, failed to request a competency hearing, and failed to appeal the issue.
People v. Freyre,
76 Misc.2d 210, 348 N.Y.S.2d 845 (Sup.Ct.1973).
C.
Finally, we believe that the state court denied collateral relief on the mistaken ground that the question, of competence had already been fully litigated, rather than the ground that Silverstein had not appealed on the basis of his incompetence.
The state court’s terse opinion in the first Article 440 proceeding simply notes that all of the issues raised in Silverstein’s petition “have already been determined by the Appellate Division.” In ruling on the second Article 440 proceeding, the state court was more explicit: As to the claim that the petitioner “was mentally incompetent at all times,” Justice Goldfluss noted that the “underlying rationale in [Silverstein’s direct appeal,] which was clearly brought to the attention of the Appellate Division, is that the defendant is retarded.” Thus, “[t]here is nothing new or novel [in the petition] that hasn’t been brought to the attention of ... the Appellate Division. Consequently, the application and the motion made
pro se
is denied.”
These remarks indicate that the state court denied Silverstein’s motion to vacate his conviction under N.Y.Crim. Proc.Law § 440.10(2)(a) (McKinney 1971), which requires the court to deny relief when “[t]he ground or issue raised upon the motion was previously determined on the merits upon an appeal from the judgment.” Erroneous or not, this ruling does not constitute a finding of procedural default that would bar federal consideration of Silver-stein’s claims.
Maxwell
v.
Sumner,
673 F.2d 1031, 1034 (9th Cir.)
(Wainwright v. Sykes
inapplicable when state denies habeas relief on ground that petitioner’s arguments had been rejected on appeal),
cert. denied,
- U.S. -, 103 S.Ct. 313, 74 L.Ed.2d 291 (1982).
In sum, under
Wainwright,
Silver-stein’s failure to allege on direct appeal that he was incompetent does not bar federal habeas relief.
The New York courts did not, would not, and constitutionally could not find that Silverstein had waived his right to challenge his conviction on the ground that he was incompetent to stand trial.
IV.
We now turn to the merits of the petitioner’s claim. We have held that the trial court must order a hearing when there is “reasonable ground” for believing that the defendant may be incompetent to stand trial.
United States ex rel. Roth v. Zelker,
455 F.2d 1105, 1108 (2d Cir.),
cert. denied,
408 U.S. 927, 92 S.Ct. 2512, 33 L.Ed.2d 340 (1972).
Recognizing that there are “no fixed or immutable signs which invariably indicate the need for further inquiry to determine fitness to proceed,”
Drope v. Missouri,
420 U.S. 162, 180, 95 S.Ct. 896, 908, 43 L.Ed.2d 103 (1975), we hold that in light of the undisputed facts, there were sufficient indicia of incompetence'before the trial court to require a hearing. The state trial court had before it the reports of three psychiatrists. The
mere
fact that the last of these reports found the petitioner competent to stand trial did not suffice to settle the question, given that two psychiatrists had submitted contrary reports just a few days before.
The doctors’ disagreement gave the trial court reasonable grounds for doubting that Silverstein was competent to stand trial. Moreover, this doubt could only have been reinforced by the presentence report noting Silverstein’s long institutional history and earlier diagnoses finding him retarded and possibly schizophrenic.
Saddler v. United States,
531 F.2d 83, 86-87 (2d Cir.1976). In these circumstances, the trial court’s failure to order a hearing,
sua sponte
if necessary, violated the defendant’s right to a fair trial.
Pate v. Robinson, supra,
383 U.S. at 385, 86 S.Ct. at 842.
If the defendant were in fact incompetent at the time of trial, the acceptance of his plea would be void as a violation of due process.
Suggs v. LaVallee,
570 F.2d 1092, 1116 (2d Cir.),
cert. denied,
439 U.S. 915, 99 S.Ct. 290, 58 L.Ed.2d 263 (1978). However, we doubt that a meaningful hearing on the question of the defendant’s competence to stand trial at the time of his plea almost six years ago, on May 20, 1977 could be held at this late date.
See Drope v. Missouri, supra,
420 U.S. at 183, 95 S.Ct. at 909 (adequate hearing not possible five years after conviction);
Pate v. Robinson, supra,
383 U.S. at 387, 86 S.Ct. at 843 (likewise for six years after conviction). A retrospective determination of Silverstein’s competence to stand trial would have to be based on three conflicting written reports, a cold, sparse record, and the recollection of those who saw and dealt with him six years ago. Such a hearing would be a wholly inadequate substitute for the “concurrent hearing” into competency mandated by
Pate. Pate, supra,
at 387, 86 S.Ct. at 843;
see Drope v. Missouri, supra; Dusky v. United States,
362 U.S. 402, 403, 80 S.Ct. 788, 789, 4 L.Ed.2d 824 (1960).
Accordingly, we reverse and direct the issuance of the writ of habeas corpus unless the state brings Silverstein to trial within a reasonable time.