diff --git a/src/patchers/t00_rwtslog.a b/src/patchers/t00_rwtslog.a
index 7c21a6c..6628320 100644
--- a/src/patchers/t00_rwtslog.a
+++ b/src/patchers/t00_rwtslog.a
@@ -154,9 +154,26 @@ _rwtslog_start
          !byte $10,$FB
          !byte $C9,$AA
          !byte $EA,$EA
-         bcs   _rwtslog_end          ; passport-test-suite/La Guillotine.woz [C=0] matches
+         bcs   @cmpnopnop_end        ; passport-test-suite/La Guillotine.woz [C=0] matches
          jsr   PrintByID
          !byte s_cmpnopnop
          inc   gPatchCount
+@cmpnopnop_end
+
+;-------------------------------
+; RWTS "TAY / BIT" identification
+; disk allows any value for
+; for address field checksum
+;-------------------------------
+         lda   #$03
+         ldx   #$88
+         ldy   #$03
+         jsr   compare               ; if T00,S03,$88 ==
+         !byte $A8
+         !byte $24,$B7
+         bcs   _rwtslog_end          ; passport-test-suite/E-Z Learner.woz [C=0] matches
+         jsr   PrintByID
+         !byte s_anychecksum
+         inc   gPatchCount
 
 _rwtslog_end
diff --git a/src/strings/en.a b/src/strings/en.a
index 67421a3..ced12d5 100755
--- a/src/strings/en.a
+++ b/src/strings/en.a
@@ -219,6 +219,7 @@ StringTableLow            ; must be kept in sync with constants in enid.a
          !byte <.neosoft
          !byte <.probs5
          !byte <.didatech
+         !byte <.anychecksum
 
 StringTableHigh           ; must be kept in sync with constants in enid.a
          !byte >.header
@@ -377,11 +378,12 @@ StringTableHigh           ; must be kept in sync with constants in enid.a
          !byte >.neosoft
          !byte >.probs5
          !byte >.didatech
+         !byte >.anychecksum
 
 .passport
          !text "Passport ",$00
 .header
-         !text "@",s_passport,"by 4am@",s_space7,"@",s_space7," 2023-05-04",$00
+         !text "@",s_passport,"by 4am@",s_space7,"@",s_space7," 2023-05-28",$00
 .bar9
          !text "_________",$00
 .bar18
@@ -781,3 +783,6 @@ StringTableHigh           ; must be kept in sync with constants in enid.a
 .didatech
          !text "@",s_found,"Didatech disk",$8D
          !text "T02,S07 @",s_maybeunreadable,$8D,$00
+.anychecksum
+         !text "@",s_rwts,"@",s_acceptsany,$8D
+         !text "address field checksum",$8D,$00
diff --git a/src/strings/enid.a b/src/strings/enid.a
index 147b8bc..52e2857 100644
--- a/src/strings/enid.a
+++ b/src/strings/enid.a
@@ -157,3 +157,4 @@ s_sfc        = $98
 s_neosoft    = $99
 s_probs5     = $9A
 s_didatech   = $9B
+s_anychecksum = $9C