diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 41822b1..94d16d7 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -27,12 +27,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "Concurrent Systems/notes/10 - Implementing Consensus.md",
+                "file": "Concurrent Systems/test/Untitled.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "10 - Implementing Consensus"
+              "title": "Untitled"
             }
           }
         ],
@@ -207,14 +207,15 @@
   },
   "active": "e453bba00fdc57d6",
   "lastOpenFiles": [
-    "Concurrent Systems/notes/9 - Consensus.md",
-    "Concurrent Systems/notes/8 - Enhancing Liveness Properties.md",
+    "Concurrent Systems/notes/4b - Monitors.md",
     "Concurrent Systems/notes/7- MUTEX-free concurrency.md",
+    "Concurrent Systems/notes/8 - Enhancing Liveness Properties.md",
     "Concurrent Systems/notes/6a - Alternatives to Atomicity.md",
     "Concurrent Systems/notes/6 - Atomicity.md",
     "Concurrent Systems/notes/5 - Software Transactional Memory.md",
+    "Concurrent Systems/notes/10 - Implementing Consensus.md",
+    "Concurrent Systems/notes/9 - Consensus.md",
     "Concurrent Systems/notes/4c - Dining Philosophers.md",
-    "Concurrent Systems/notes/4b - Monitors.md",
     "Concurrent Systems/notes/4 - Semaphores.md",
     "Concurrent Systems/notes/3b - Aravind's algorithm and improvements.md",
     "Concurrent Systems/notes/3a - Hardware primitives & Lamport Bakery algorithm.md",
@@ -227,7 +228,6 @@
     "Concurrent Systems/slides/class 9.pdf",
     "Concurrent Systems/slides/class 10.pdf",
     "Concurrent Systems/test",
-    "Concurrent Systems/notes/10 - Implementing Consensus.md",
     "HCIW/slides/Tangible User Interfaces.pdf",
     "Concurrent Systems/notes/images/Pasted image 20250401083747.png",
     "Concurrent Systems/notes/images/Pasted image 20250401092557.png",
diff --git a/Concurrent Systems/test/Untitled.md b/Concurrent Systems/test/Untitled.md
index 2993593..69c4ce0 100644
--- a/Concurrent Systems/test/Untitled.md	
+++ b/Concurrent Systems/test/Untitled.md	
@@ -34,3 +34,37 @@ end_write() :=
 	GLOB_MUTEX.up()
 	return
 ```
+
+```
+monitor RW_READERS :=
+	AR, WR, AW, WW, LASTW init at 0
+	condition CR, CW
+
+operation begin_read() :=
+	if WW + AW != 0 then
+		CR.wait()
+		CR.signal()
+	AR++
+
+operation end_read() :=
+	AR--
+	if AR = 0 then
+		CW.signal()
+
+operation begin_write() :=
+	WW++
+	LASTW <- i
+	CW.signal() # wakes eventually other waiting writers *they will return false*
+	if (AR + AW != 0) then
+		CW.wait()
+	if LASTW
+	AW++
+	WW--
+
+operation end_write() :=
+	AW--
+	if WW > 0 then
+		CW.signal()
+	else
+		CR.signal()
+```
\ No newline at end of file