diff --git a/examples/gno.land/r/nt/boards2/z_3_a_filetest.gno b/examples/gno.land/r/nt/boards2/z_3_a_filetest.gno
index 88812194645..ecfd3e33e06 100644
--- a/examples/gno.land/r/nt/boards2/z_3_a_filetest.gno
+++ b/examples/gno.land/r/nt/boards2/z_3_a_filetest.gno
@@ -7,26 +7,25 @@ import (
 )
 
 const (
-	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
-	name  = "foo123"
+	owner   = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+	name    = "foo123"
+	newName = "bar123"
 )
 
+var bid boards2.BoardID // Operate on board DAO
+
 func init() {
 	std.TestSetOrigCaller(owner)
-	boards2.CreateBoard(name)
+	bid = boards2.CreateBoard(name)
 }
 
 func main() {
-	newName := "bar123"
-	_, exists := boards2.GetBoardIDFromName(newName)
-	println("Exists =", exists)
-
 	boards2.RenameBoard(name, newName)
 
-	bid, _ := boards2.GetBoardIDFromName(newName)
-	println("ID =", bid)
+	// Ensure board is renamed by the default board owner
+	bid2, _ := boards2.GetBoardIDFromName(newName)
+	println("IDs match =", bid == bid2)
 }
 
 // Output:
-// Exists = false
-// ID = 1
+// IDs match = true
diff --git a/examples/gno.land/r/nt/boards2/z_3_f_filetest.gno b/examples/gno.land/r/nt/boards2/z_3_f_filetest.gno
index f910c630d37..b4f9d07a04b 100644
--- a/examples/gno.land/r/nt/boards2/z_3_f_filetest.gno
+++ b/examples/gno.land/r/nt/boards2/z_3_f_filetest.gno
@@ -12,33 +12,31 @@ import (
 const (
 	owner   = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
 	member  = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
-	bid     = boards2.BoardID(0)                                      // Operate on realm DAO members instead of individual boards
 	name    = "foo123"
 	newName = "barbaz"
 )
 
+var bid boards2.BoardID // Operate on board DAO
+
 func init() {
 	std.TestSetOrigCaller(owner)
 
+	bid = boards2.CreateBoard(name)
+	boards2.InviteMember(bid, member, boards2.RoleOwner)
+
 	// Test1 is the boards owner and its address has a user already registered
 	// so a new member must register a user with the new board name.
-	boards2.InviteMember(bid, member, boards2.RoleOwner)
 	std.TestSetOrigCaller(member)
 	users.Register("", newName, "")
-
-	boards2.CreateBoard(name)
 }
 
 func main() {
-	_, exists := boards2.GetBoardIDFromName(newName)
-	println("Exists =", exists)
-
 	boards2.RenameBoard(name, newName)
 
-	bid, _ := boards2.GetBoardIDFromName(newName)
-	println("ID =", bid)
+	// Ensure board is renamed by another board owner
+	bid2, _ := boards2.GetBoardIDFromName(newName)
+	println("IDs match =", bid == bid2)
 }
 
 // Output:
-// Exists = false
-// ID = 1
+// IDs match = true
diff --git a/examples/gno.land/r/nt/boards2/z_3_g_filetest.gno b/examples/gno.land/r/nt/boards2/z_3_g_filetest.gno
index f4ee3c34741..0c127148b81 100644
--- a/examples/gno.land/r/nt/boards2/z_3_g_filetest.gno
+++ b/examples/gno.land/r/nt/boards2/z_3_g_filetest.gno
@@ -13,35 +13,30 @@ const (
 	owner   = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
 	member  = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
 	member2 = std.Address("g1vh7krmmzfua5xjmkatvmx09z37w34lsvd2mxa5")
-	bid     = boards2.BoardID(0) // Operate on realm DAO members instead of individual boards
 	name    = "foo123"
 	newName = "barbaz"
 )
 
+var bid boards2.BoardID // Operate on board DAO
+
 func init() {
 	std.TestSetOrigCaller(owner)
 
+	bid = boards2.CreateBoard(name)
+	boards2.InviteMember(bid, member, boards2.RoleOwner)
+
 	// Test1 is the boards owner and its address has a user already registered
 	// so a new member must register a user with the new board name.
-	boards2.InviteMember(bid, member, boards2.RoleOwner)
 	std.TestSetOrigCaller(member)
 	users.Register("", newName, "")
 
 	// Invite a new member that doesn't own the user that matches the new board name
 	boards2.InviteMember(bid, member2, boards2.RoleOwner)
 	std.TestSetOrigCaller(member2)
-
-	boards2.CreateBoard(name)
 }
 
 func main() {
-	_, exists := boards2.GetBoardIDFromName(newName)
-	println("Exists =", exists)
-
 	boards2.RenameBoard(name, newName)
-
-	bid, _ := boards2.GetBoardIDFromName(newName)
-	println("ID =", bid)
 }
 
 // Error:
diff --git a/examples/gno.land/r/nt/boards2/z_3_h_filetest.gno b/examples/gno.land/r/nt/boards2/z_3_h_filetest.gno
new file mode 100644
index 00000000000..36d66e682ca
--- /dev/null
+++ b/examples/gno.land/r/nt/boards2/z_3_h_filetest.gno
@@ -0,0 +1,24 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/nt/boards2"
+)
+
+const (
+	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+	name  = "foo123"
+)
+
+func init() {
+	std.TestSetOrigCaller(owner)
+	boards2.CreateBoard(name)
+}
+
+func main() {
+	boards2.RenameBoard(name, "short")
+}
+
+// Error:
+// the minimum allowed board name length is 6 characters
diff --git a/examples/gno.land/r/nt/boards2/z_3_i_filetest.gno b/examples/gno.land/r/nt/boards2/z_3_i_filetest.gno
new file mode 100644
index 00000000000..0c127148b81
--- /dev/null
+++ b/examples/gno.land/r/nt/boards2/z_3_i_filetest.gno
@@ -0,0 +1,43 @@
+package main
+
+// SEND: 200000000ugnot
+
+import (
+	"std"
+
+	"gno.land/r/demo/users"
+	"gno.land/r/nt/boards2"
+)
+
+const (
+	owner   = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+	member  = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
+	member2 = std.Address("g1vh7krmmzfua5xjmkatvmx09z37w34lsvd2mxa5")
+	name    = "foo123"
+	newName = "barbaz"
+)
+
+var bid boards2.BoardID // Operate on board DAO
+
+func init() {
+	std.TestSetOrigCaller(owner)
+
+	bid = boards2.CreateBoard(name)
+	boards2.InviteMember(bid, member, boards2.RoleOwner)
+
+	// Test1 is the boards owner and its address has a user already registered
+	// so a new member must register a user with the new board name.
+	std.TestSetOrigCaller(member)
+	users.Register("", newName, "")
+
+	// Invite a new member that doesn't own the user that matches the new board name
+	boards2.InviteMember(bid, member2, boards2.RoleOwner)
+	std.TestSetOrigCaller(member2)
+}
+
+func main() {
+	boards2.RenameBoard(name, newName)
+}
+
+// Error:
+// board name is a user name registered to a different user
diff --git a/examples/gno.land/r/nt/boards2/z_3_j_filetest.gno b/examples/gno.land/r/nt/boards2/z_3_j_filetest.gno
new file mode 100644
index 00000000000..309b029e593
--- /dev/null
+++ b/examples/gno.land/r/nt/boards2/z_3_j_filetest.gno
@@ -0,0 +1,27 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/nt/boards2"
+)
+
+const (
+	owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+	user  = std.Address("g1us8428u2a5satrlxzagqqa5m6vmuze025anjlj") // @test2
+	name  = "foo123"
+)
+
+func init() {
+	std.TestSetOrigCaller(owner)
+	boards2.CreateBoard(name)
+
+	std.TestSetOrigCaller(user)
+}
+
+func main() {
+	boards2.RenameBoard(name, "barbaz")
+}
+
+// Error:
+// unauthorized