diff --git a/tsql/ThreeSixNine.sql b/tsql/ThreeSixNine.sql
new file mode 100644
index 0000000..4b3d657
--- /dev/null
+++ b/tsql/ThreeSixNine.sql
@@ -0,0 +1,139 @@
+
+CREATE PROCEDURE [dbo].[spThreeSixNine]
+(
+	@maxRange int
+)
+AS
+
+DECLARE @seed INT = 1;
+DECLARE @Numbers TABLE
+(
+	[Number] INT PRIMARY KEY
+)
+
+WHILE @seed < (@maxRange + 1)
+BEGIN
+	INSERT INTO @Numbers
+	SELECT @seed;
+
+	SELECT @seed = @seed + 1;
+END
+
+SELECT
+	[Number],
+	REPLICATE('X',
+		LEN(CAST([Number] AS VARCHAR(12))) - LEN(REPLACE(CAST([Number] AS VARCHAR(12)),'3',''))
+		+ LEN(CAST([Number] AS VARCHAR(12))) - LEN(REPLACE(CAST([Number] AS VARCHAR(12)),'6',''))
+		+ LEN(CAST([Number] AS VARCHAR(12))) - LEN(REPLACE(CAST([Number] AS VARCHAR(12)),'9',''))
+	) AS [Claps]
+FROM @Numbers;
+
+-- Execute:
+EXEC [dbo].[spThreeSixNine] 100
+
+/*
+	Number      Clap
+	----------- -----------------
+	1           
+	2           
+	3           X
+	4           
+	5           
+	6           X
+	7           
+	8           
+	9           X
+	10          
+	11          
+	12          
+	13          X
+	14          
+	15          
+	16          X
+	17          
+	18          
+	19          X
+	20          
+	21          
+	22          
+	23          X
+	24          
+	25          
+	26          X
+	27          
+	28          
+	29          X
+	30          X
+	31          X
+	32          X
+	33          XX
+	34          X
+	35          X
+	36          XX
+	37          X
+	38          X
+	39          XX
+	40          
+	41          
+	42          
+	43          X
+	44          
+	45          
+	46          X
+	47          
+	48          
+	49          X
+	50          
+	51          
+	52          
+	53          X
+	54          
+	55          
+	56          X
+	57          
+	58          
+	59          X
+	60          X
+	61          X
+	62          X
+	63          XX
+	64          X
+	65          X
+	66          XX
+	67          X
+	68          X
+	69          XX
+	70          
+	71          
+	72          
+	73          X
+	74          
+	75          
+	76          X
+	77          
+	78          
+	79          X
+	80          
+	81          
+	82          
+	83          X
+	84          
+	85          
+	86          X
+	87          
+	88          
+	89          X
+	90          X
+	91          X
+	92          X
+	93          XX
+	94          X
+	95          X
+	96          XX
+	97          X
+	98          X
+	99          XX
+	100         
+
+(100 row(s) affected)
+*/