how many players have multiple championships and have had 20 rebound games

Bill Laimbeer won 2 championships when grabbing 20+ rebounds.

Interpreted as:

How many players have multiple championships and have had 20 or more rebound games?

	NAME	CHAMPS	REB	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	AST	STL	BLK	TOV	PF
1	Bill Laimbeer B. Laimbeer	2	641	30	39.5	20.2	21.4	2.2			7.9	15.8	49.8	0.3	0.9	34.6	4.1	5.0	83.2	56.1	6.0	15.4		1,186	605	67				111
2	Larry Smith L. Smith	0	353	16	39.7	9.4	22.1	1.4	1.4	1.0	4.2	8.7	48.2	0.0	0.0		1.0	2.5	40.0	47.9	9.7	12.4	1.8	635	150	22	23	16	28	56
3	Artis Gilmore A. Gilmore	0	209	10	38.1	15.2	20.9	2.2	0.6	2.4	5.4	11.1	48.6	0.0	0.0		4.4	5.8	75.9	55.7	6.3	14.6	2.9	381	152	22	6	24	29	30
4	Terry Cummings T. Cummings	0	162	7	41.0	25.9	23.1	3.4	2.1	1.4	10.9	23.1	46.9	0.0	0.1	0.0	4.1	5.6	74.4	50.5	9.9	13.3	3.0	287	181	24	15	10	21	25
5	Cliff Robinson C. Robinson	0	150	7	41.6	22.9	21.4	1.7	0.3	2.0	9.6	18.6	51.5	0.1	0.3	50.0	3.6	4.7	75.8	55.4	4.0	17.4	2.9	291	160	12	2	14	20	20
6	Moses Malone M. Malone	1	804	37	39.9	28.1	21.7	1.6		2.0	9.2	20.2	45.3	0.0	0.1	0.0	9.8	12.4	78.9	54.8	8.9	12.8		1,477	1,041	58		74		97
7	Dan Roundfield D. Roundfield	0	84	4	39.0	21.0	21.0	3.3	2.0	3.3	8.3	17.3	47.8	0.0	0.3	0.0	4.5	6.8	66.7	51.9	5.0	16.0	3.3	156	84	13	8	13	13	13
8	Dave Greenwood D. Greenwood	0	148	7	37.0	14.1	21.1	2.9	0.9	1.3	5.0	11.1	44.9	0.0	0.1	0.0	4.1	5.4	76.3	52.3	6.9	14.3	1.0	259	99	20	6	9	7	20
9	Buck Williams B. Williams	0	572	27	43.4	20.4	21.2	2.0		1.5	7.7	14.0	55.1	0.0	0.0		4.9	7.2	67.7	59.2	6.6	14.6		1,171	550	54		41		99
10	Jack Sikma J. Sikma	0	194	9	38.3	23.3	21.6	3.4	0.9	1.1	8.8	17.9	49.1	0.0	0.1	0.0	5.8	7.1	81.3	55.5	6.0	15.6	3.2	345	210	31	8	10	29	36
11	Danny Schayes D. Schayes	0	24	1	42.0	18.0	24.0	4.0	1.0	0.0	7.0	12.0	58.3	0.0	0.0		4.0	6.0	66.7	61.5	10.0	14.0	4.0	42	18	4	1	0	4	4
12	Mychal Thompson M. Thompson	0	20	1	43.0	22.0	20.0	2.0	1.0	3.0	9.0	26.0	34.6	0.0	0.0		4.0	7.0	57.1	37.8	6.0	14.0	3.0	43	22	2	1	3	3	1
13	Dave Corzine D. Corzine	0	44	2	36.5	24.0	22.0	2.5	1.0	4.5	11.0	20.5	53.7	0.0	0.0		2.0	3.5	57.1	54.4	10.0	12.0	3.0	73	48	5	2	9	6	5
14	Clark Kellogg C. Kellogg	0	82	4	37.8	19.0	20.5	4.0	1.3	1.0	8.3	17.5	47.1	0.0	0.5	0.0	2.5	2.5	100.0	51.1	5.8	14.8	2.0	151	76	16	5	4	8	14
15	Larry Bird L. Bird	1	60	3	41.3	31.3	20.0	5.0	2.3		12.3	25.3	48.7	0.7	2.3	28.6	6.0	6.3	94.7	55.7	4.7	15.3		124	94	15	7			9
16	Maurice Lucas M. Lucas	0	45	2	42.0	27.0	22.5	5.0	0.5	0.0	10.5	19.5	53.8	0.0	0.0		6.0	6.5	92.3	60.4	6.5	16.0	2.0	84	54	10	1	0	4	7
17	Robert Parish R. Parish	1	329	15	41.1	20.7	21.9	2.7	0.9	2.3	8.3	16.1	51.2	0.0	0.0		4.1	5.7	72.9	55.5	7.3	14.7	2.5	616	310	40	14	34	38	51
18	Pat Cummings P. Cummings	0	20	1	29.0	8.0	20.0	1.0	0.0	0.0	2.0	8.0	25.0	0.0	0.0		4.0	6.0	66.7	37.6	6.0	14.0	2.0	29	8	1	0	0	2	2
19	Truck Robinson T. Robinson	0	23	1	41.0	18.0	23.0	5.0	0.0	0.0	8.0	15.0	53.3	0.0	0.0		2.0	3.0	66.7	55.1	6.0	17.0	1.0	41	18	5	0	0	1	5
20	Alex English A. English	0	20	1	41.0	31.0	20.0	8.0	0.0	2.0	13.0	29.0	44.8	0.0	0.0		5.0	6.0	83.3	49.0	11.0	9.0	2.0	41	31	8	0	2	2	4
21	Ralph Sampson R. Sampson	0	151	7	42.1	26.6	21.6	3.4	1.9	1.9	10.0	20.6	48.6	0.1	0.3	50.0	6.4	9.3	69.2	53.9	5.1	16.4	5.4	295	186	24	13	13	38	23
22	Jeff Ruland J. Ruland	0	65	3	47.3	24.3	21.7	4.3	2.0	1.7	9.7	19.7	49.2	0.0	0.0		5.0	8.7	57.7	51.8	9.0	12.7	7.0	142	73	13	6	5	21	11
23	LaSalle Thompson L. Thompson	0	144	7	35.7	18.3	20.6	2.1	1.6	1.1	7.3	12.9	56.7	0.0	0.1	0.0	3.7	5.1	72.2	60.5	8.4	12.1	2.6	250	128	15	11	8	18	22
24	Edgar Jones E. Jones	0	25	1	38.0	10.0	25.0	3.0	3.0	0.0	3.0	10.0	30.0	0.0	0.0		4.0	6.0	66.7	39.6	10.0	15.0	2.0	38	10	3	3	0	2	6
25	Alton Lister A. Lister	0	82	4	38.5	10.5	20.5	1.3	0.3	2.3	3.8	8.3	45.5	0.0	0.0		3.0	7.5	40.0	45.5	6.0	14.5	2.8	154	42	5	1	9	11	13