how many 20 rebound game bil russell has

Bill Russell grabbed 20 rebounds versus the San Diego Rockets on March 24, 1969.

Interpreted as:

How many 20 or more rebound regular-season game bil russell has in his career?

	NAME	DATE	REB	TM		OPP	MIN	PTS	AST	FGM	FGA	FG%	FTM	FTA	FT%	TS%	PF
1	Bill Russell B. Russell	3/24/1969	20	BOS		SDR		3	4	1	6	16.7	1	1	100.0	23.3	3
2	Bill Russell B. Russell	3/19/1969	24	BOS	vs	CHI	32	7	5	2	6	33.3	3	6	50.0	40.5	4
3	Bill Russell B. Russell	3/2/1969	20	BOS	vs	CHI	48	12	3	3	7	42.9	6	11	54.5	50.7	3
4	Bill Russell B. Russell	3/1/1969	21	BOS	@	NYK	40	17	3	7	14	50.0	3	8	37.5	48.5	3
5	Bill Russell B. Russell	2/25/1969	25	BOS		PHX	38	10	8	4	7	57.1	2	9	22.2	45.6	3
6	Bill Russell B. Russell	2/22/1969	21	BOS	@	PHX	44	18	7	8	13	61.5	2	2	100.0	64.8	2
7	Bill Russell B. Russell	2/18/1969	28	BOS	vs	PHX	41	9	11	4	7	57.1	1	2	50.0	57.1	2
8	Bill Russell B. Russell	2/14/1969	20	BOS	@	ATL		13	3	5	11	45.5	3	8	37.5	44.8	1
9	Bill Russell B. Russell	2/12/1969	30	BOS	@	DET	44	12		5			2	3	66.7		3
10	Bill Russell B. Russell	2/9/1969	23	BOS	vs	PHI	45	9	3	2	5	40.0	5	9	55.6	50.2	2
11	Bill Russell B. Russell	2/2/1969	28	BOS	vs	NYK	48	10	4	2	13	15.4	6	10	60.0	28.7	3
12	Bill Russell B. Russell	1/31/1969	24	BOS	vs	CIN	47	17	7	6	11	54.5	5	9	55.6	56.8	4
13	Bill Russell B. Russell	1/29/1969	25	BOS		SEA	53	23	7	8	13	61.5	7	14	50.0	60.0	3
14	Bill Russell B. Russell	1/28/1969	20	BOS	vs	ATL	44	12	3	5	8	62.5	2	2	100.0	67.6	4
15	Bill Russell B. Russell	1/26/1969	25	BOS	vs	BAL	39	8	3	3	5	60.0	2	3	66.7	63.3	1
16	Bill Russell B. Russell	1/18/1969	21	BOS	vs	SEA	45	15	6	6	12	50.0	3	9	33.3	47.0	4
17	Bill Russell B. Russell	1/17/1969	22	BOS	vs	SFW	48	9	8	4	6	66.7	1	1	100.0	69.9	3
18	Bill Russell B. Russell	1/12/1969	27	BOS	@	MIL		10		4			2	5	40.0
19	Bill Russell B. Russell	1/11/1969	25	BOS	@	PHI	48	14	3	6	7	85.7	2	4	50.0	79.9	3
20	Bill Russell B. Russell	1/6/1969	28	BOS	@	SEA	46	9	4	4	12	33.3	1	1	100.0	36.2	4
21	Bill Russell B. Russell	1/5/1969	20	BOS	@	SFW	38	11	3	5	19	26.3	1	2	50.0	27.7	2
22	Bill Russell B. Russell	1/1/1969	21	BOS	@	PHX	48	14	4	5	8	62.5	4	6	66.7	65.8	5
23	Bill Russell B. Russell	12/26/1968	25	BOS	vs	MIL	34	5	5	2	5	40.0	1	5	20.0	34.7	3
24	Bill Russell B. Russell	12/21/1968	24	BOS	@	CHI	45	11	4	2	10	20.0	7	10	70.0	38.2	2
25	Bill Russell B. Russell	12/3/1968	26	BOS	@	MIL		15		6	7	85.7	3	5	60.0	81.5	2