PRP Top - Top discoverers

Top discoverers by number of PRPs

Rank	Discoverer	Score
1	Tony Prest / Never Odd Or Even	103856
2	Stefano Morozzi	37718
3	Lelio R Paula	31241
4	Patrick De Geest	21223
5	Enzo Doria	14510
6	Syoichiro Yamada	13745
7	Robert Price	12505
8	Paul Bourdelais	8893
9	Ray Chandler	8631
10	David Broadhurst	7813
11	Gilbert Mozzo	4720
12	Milton L. Brown	3224
13	Donovan Johnson	3116
14	Serge Batalov	3026
15	Kimmo Herranen	2745
16	Norbert Schneider	2549
17	Mike Oakes	2437
18	Yves Minet	2220
19	Hans Havermann	1604
20	Bernardo Boncompagni	1489
21	Henri Lifchitz	1129
22	Andrey Kulsha	801
23	Frank Doornink	786
24	Jorge Menendez	702
25	Wayne Halsdorf	674
26	Makoto Morimoto	627
27	Jason Earls	614
28	Joe McLean	594
29	Jim Fougeron	580
30	Jens K. Andersen	573
31	Anatoly F. Selevich	475
32	Kenneth Egtved Pedersen	422
33	Robert Smith	374
34	Paul Underwood	336
35	Erik Branger	331
36	Eric Chen	275
36	Tyler Busby	275
38	Maksym Voznyy	271
39	Alfred Reich	262
40	Richard Fischer	227
41	Gary Barnes	170
42	Gary Chaffey	162
43	Ryan C Weaving	158
44	Ryan Propper	151
45	Anonymous	130
46	Jon Grantham	129
47	Markus Hiltbrunner	123
48	Kevin Acres	109
49	Michael Porter	99
50	Harald Ritter	94
51	Matt Stath	93
51	Jean-Louis Charton	93
53	Jiahao He	91
54	Daniel Heuer	80
55	T. D. Noe	79
56	Paul Leyland	71
56	Sinkiti Sibata	71
58	Dmitry Domanov	68
59	Curtis Bright	61
60	Eric W. Weisstein	58
61	Norman Luhn	57
62	Sander Hoogendoorn	54
63	D.Broadhurst and W.Edgington	53
64	Michael Vang	52
65	Pedja Terzic	51
66	Sujan Das	50
67	Renaud Lifchitz	49
68	Makoto Kamada	48
69	Theodore Burton	45
70	Arkadiusz Wesolowski	44
70	Mark Rodenkirch	44
72	Nicolas PALAU	43
73	Patrick Schmeer	39
73	Paul Vanderveen	39
75	Riley Fisher	37
76	Thomas Masser	36
77	Cletus Emmanuel	30
78	Kellen Shenton	27
78	Harvey Dubner	27
78	Faysal YAtim	27
81	Youcef Lemsafer	25
82	Greg Childers	24
83	Paul Schmidt	23
84	Wojciech Florek	22
84	Martin Hopf	22
84	Jinyuan Wang	22
87	Aurel Gibier	20
87	Danilo Nitsche	20
89	Joel Levy	19
89	Gord Palameta	19
89	Rob Binnekamp	19
92	Predrag Minovic	18
92	Ken Davis	18
94	Boyan Hu	17
94	Bouk de Water	17
94	Robert Kinser	17
97	Gabor Levai	16
97	Rytis Slatkevicius	16
99	Harrison Mesh	15
100	Alex_soldier	14
101	Poliagapitos	13
101	Tom Wu	13
101	Thomas Ritschel	13
104	Alexander Zhirkov	12
105	Nik Lygeros / Olivier Rozier	11
106	Michael Stocker	10
106	Marcin Lipinski	10
106	Sergey Batalov	10
106	Raffi Chaglassian	10
106	Hayden Chesnut	10
106	Ryan Propper + Sergey Batalov	10
112	D. Broadhurst & B. de Water	9
112	Tyler NeSmith	9
112	Darren Bedwell	9
112	Kamil Duszenko	9
112	Dario Alpern	9
112	Alexander Kuzmich	9
118	Walter Nissen	8
118	Nik Lygeros / Olivier Rozier / LR team	8
118	Leonid Muraviov	8
118	M. Frind & P. Underwood	8
118	Anton Vrba	8
123	Karsten Bonath	7
123	Jean Penné	7
123	James G. Merickel	7
123	H.&R. Lifchitz	7
127	Jason Yuen	6
127	Mischa Rodermond	6
127	Dirk Augustin	6
130	Borys Jaworski	5
130	Pierre CAMI	5
130	Harsh Aggarwal	5
130	Payam Samidoost	5
130	Marisa Kirisame	5
130	Yaroslav Berezhko	5
130	Miklos Levai	5
137	Dylan Delgado	4
137	Décio Gazzoni Filho	4
137	V.M.Ulyanov	4
137	Jeppe Stig Nielsen	4
137	Marek Hubal	4
137	Anand Nair	4
143	Paul Jobling	3
143	Phil Moore	3
143	Jiong Sun	3
143	Richard McIntosh	3
143	Meng-Hsuan Wu	3
143	Alexander Gramolin	3
143	Matthias Baur	3
143	Akihiko Yoshida	3
143	Alexander Weiss	3
143	Hugo Platzer	3
143	Ben Maloney / Five or Bust	3
143	Giovanni Di Maria	3
143	D. Gazzoni Filho & Lucas Teixeira	3
156	Engracio Esmenda / Five or Bust	2
156	Steven Harvey	2
156	Andy Klingeleers	2
156	Valeryi Kuryshev	2
156	Ananda Tallur & Jean-Louis Charton	2
156	Andy Steward	2
156	Markus Tervooren	2
156	Ed Pegg	2
156	Dmitry Kamenetsky	2
156	Rubén Blanco	2
156	Ray Ballinger	2
156	Lewis,Jobling,Nash	2
156	Peter Liaskovsky	2
156	Leonid Durman	2
156	Peter Lesala	2
156	Michael Kwok	2
156	J. Alm & D. Johnson	2
173	Tony Reix / Diepeveen-Underwood -Reix	1
173	Tetsuya Kobayashi	1
173	Adrian Bondrescu	1
173	Cyclamen Persicum	1
173	Connor Deptuck	1
173	Kurt Beschorner	1
173	Leonardo Ottaviano	1
173	Nuutti Kuosa	1
173	Vincent Diepeveen	1
173	Matthias Wurtinger	1
173	Yusuf AttarBashi	1
173	Matthew Peets	1
173	Michael Eaton	1
173	William Garnett	1
173	MohamedReda Kebbaj	1
173	Tapashree & Jainam	1
173	Luke W. Richards	1
173	Lew Baxter	1
173	D.Broadhurst and N.Mandela	1
173	Platon Sovilj	1
173	GIMPS-fre_games	1
173	Phil Carmody	1
173	Eden Avidan / Naegi Makoto	1
173	Giovanni La Barbera	1
173	Guido Smetrijns	1
173	Polly T. Wang	1
173	Göran Hemdal	1
173	Richard FitzHugh	1
173	Ed Trice	1
173	Ed T. Prothro	1
173	Jorge Coveiro	1
173	paolo galliani	1
173	Hugo Pfoertner	1
173	D.Broadhurst and M.Kamada	1
173	Paul Bourdelais, Harvey Dubner	1
173	Jeff Gilchrist /Diepeveen-Reix-Underwood-Gilchrist	1
173	Peter Kaiser	1
173	Sean A. Irvine	1
173	Dudley Fox	1
173	Oliver Kruse	1

Top discoverers by production score^*

Rank	Discoverer	Score
1	Ryan Propper + Sergey Batalov	53.4527
2	Ryan Propper	53.1039
3	Paul Bourdelais	51.7728
4	Anonymous	51.1973
5	Jeff Gilchrist /Diepeveen-Reix-Underwood-Gilchrist	50.9036
6	Enzo Doria	50.7690
7	Eden Avidan / Naegi Makoto	50.7167
8	Tony Prest / Never Odd Or Even	50.4677
9	GIMPS-fre_games	50.1446
10	Stefano Morozzi	49.9750
11	Engracio Esmenda / Five or Bust	49.8812
12	Gord Palameta	49.3233
13	Oliver Kruse	49.0532
14	Robert Price	48.7629
15	Serge Batalov	48.7314
16	Hans Havermann	48.5131
17	Gabor Levai	48.4791
18	Jon Grantham	48.0806
19	Ben Maloney / Five or Bust	47.7568
20	Alfred Reich	47.6608
21	Kellen Shenton	47.6574
22	Henri Lifchitz	47.6413
23	Lelio R Paula	47.4747
24	Patrick De Geest	47.3257
25	Tony Reix / Diepeveen-Underwood -Reix	47.2269
26	Rytis Slatkevicius	47.1256
27	Curtis Bright	47.1095
28	Nik Lygeros / Olivier Rozier / LR team	47.1065
29	Anand Nair	47.0205
30	Sergey Batalov	46.8860
31	Makoto Morimoto	46.7970
32	Peter Kaiser	46.6330
33	Nik Lygeros / Olivier Rozier	46.5672
34	Boyan Hu	46.5260
35	Jean-Louis Charton	46.4485
36	Frank Doornink	46.4192
37	Norbert Schneider	46.1494
38	Miklos Levai	46.1482
39	Alexander Zhirkov	46.0960
40	Yves Minet	45.9529
41	Borys Jaworski	45.7963
42	Eric Chen	45.7526
43	Mike Oakes	45.4811
44	Mischa Rodermond	45.2614
45	Michael Stocker	45.1413
46	Adrian Bondrescu	45.1328
47	Dario Alpern	44.9364
48	Jorge Coveiro	44.8701
49	Tyler Busby	44.8204
50	Norman Luhn	44.6606
51	Leonid Durman	44.5445
52	Erik Branger	44.5434
53	Jorge Menendez	44.1576
54	Maksym Voznyy	44.0643
55	Phil Moore	43.9356
56	Renaud Lifchitz	43.9182
57	Jinyuan Wang	43.8729
58	Ray Chandler	43.7713
59	Yusuf AttarBashi	43.7152
60	Youcef Lemsafer	43.6970
61	Anatoly F. Selevich	43.6366
62	Danilo Nitsche	43.4553
63	Matthias Wurtinger	43.4236
64	Makoto Kamada	43.3220
65	Syoichiro Yamada	43.3093
66	paolo galliani	43.1908
67	Donovan Johnson	43.1363
68	Eric W. Weisstein	43.1286
69	Aurel Gibier	43.0939
70	Riley Fisher	42.9474
71	Ed Trice	42.9402
72	Mark Rodenkirch	42.9159
73	Vincent Diepeveen	42.9031
74	Martin Hopf	42.7818
75	Robert Smith	42.7237
76	Richard Fischer	42.6135
77	Thomas Ritschel	42.5917
78	Robert Kinser	42.5587
79	Alex_soldier	42.5456
80	Jens K. Andersen	42.4271
81	Milton L. Brown	42.4230
82	Gilbert Mozzo	42.3829
83	Luke W. Richards	42.2565
84	Jason Yuen	42.2563
85	Markus Tervooren	42.2013
86	Harrison Mesh	42.1987
87	Tom Wu	42.1899
88	Hayden Chesnut	42.1843
89	Kevin Acres	42.1267
90	Tyler NeSmith	42.1057
91	Alexander Gramolin	42.0680
92	Andy Steward	42.0678
93	Dmitry Domanov	41.9615
94	David Broadhurst	41.9510
95	Akihiko Yoshida	41.9008
96	Wayne Halsdorf	41.8768
97	Theodore Burton	41.8735
98	Matt Stath	41.8125
99	Paul Vanderveen	41.7967
100	Kimmo Herranen	41.7829
101	Karsten Bonath	41.7119
102	Harsh Aggarwal	41.6996
103	Nicolas PALAU	41.6474
104	Sujan Das	41.5708
105	Matthias Baur	41.5055
106	Michael Vang	41.5045
107	Joe McLean	41.4510
108	Jason Earls	41.4443
109	Cletus Emmanuel	41.3699
110	Paul Underwood	41.2942
111	Faysal YAtim	41.2683
112	Valeryi Kuryshev	41.2673
113	Gary Barnes	41.2070
114	Dylan Delgado	41.1947
115	Andrey Kulsha	41.1560
116	Payam Samidoost	41.1236
117	Jean Penné	41.0866
118	M. Frind & P. Underwood	41.0735
119	T. D. Noe	41.0112
120	Yaroslav Berezhko	40.9169
121	Pedja Terzic	40.7924
122	Michael Porter	40.7420
123	Bernardo Boncompagni	40.6902
124	Darren Bedwell	40.5716
125	Alexander Weiss	40.5545
126	H.&R. Lifchitz	40.5526
127	Marek Hubal	40.5299
128	Poliagapitos	40.3648
129	Jiahao He	40.2751
130	Jeppe Stig Nielsen	40.1663
131	Arkadiusz Wesolowski	40.0345
132	Marisa Kirisame	40.0015
133	Jim Fougeron	39.9920
134	Daniel Heuer	39.8964
135	Paul Bourdelais, Harvey Dubner	39.8282
136	Sander Hoogendoorn	39.8108
137	D. Gazzoni Filho & Lucas Teixeira	39.6113
138	Predrag Minovic	39.5972
139	Wojciech Florek	39.5962
140	Ryan C Weaving	39.5308
141	Sinkiti Sibata	39.4834
142	Kurt Beschorner	39.3559
143	Dirk Augustin	39.2949
144	Kenneth Egtved Pedersen	39.1165
145	Lew Baxter	39.1057
146	Tapashree & Jainam	38.8360
147	Harald Ritter	38.8053
148	Patrick Schmeer	38.6236
149	Ananda Tallur & Jean-Louis Charton	38.5718
150	Walter Nissen	38.4704
151	James G. Merickel	38.4559
152	Gary Chaffey	38.4469
153	Thomas Masser	38.4129
154	Décio Gazzoni Filho	38.3716
155	D.Broadhurst and W.Edgington	38.3693
156	Peter Lesala	38.2364
157	Pierre CAMI	38.1880
158	Phil Carmody	38.0649
159	Jiong Sun	38.0187
160	Platon Sovilj	37.8224
161	Bouk de Water	37.7897
162	Kamil Duszenko	37.7572
163	Harvey Dubner	37.7421
164	Paul Leyland	37.7267
165	Connor Deptuck	37.7091
166	Markus Hiltbrunner	37.5011
167	Joel Levy	37.4885
168	Leonardo Ottaviano	37.4341
169	Meng-Hsuan Wu	37.2670
170	Greg Childers	37.2465
171	Raffi Chaglassian	37.1068
172	Marcin Lipinski	37.0378
173	Richard McIntosh	37.0213
174	Rob Binnekamp	36.9534
175	Paul Jobling	36.8410
176	Lewis,Jobling,Nash	36.6013
177	Ken Davis	36.4213
178	Rubén Blanco	36.3081
179	MohamedReda Kebbaj	36.2809
180	D.Broadhurst and N.Mandela	36.2365
181	D.Broadhurst and M.Kamada	36.2230
182	D. Broadhurst & B. de Water	36.2010
183	Steven Harvey	36.0407
184	Alexander Kuzmich	35.8876
185	Paul Schmidt	35.8030
186	Anton Vrba	35.6914
187	Dudley Fox	35.5339
188	William Garnett	35.2932
189	Peter Liaskovsky	35.1846
190	Ray Ballinger	35.1526
191	Dmitry Kamenetsky	34.9327
192	Matthew Peets	34.8243
193	Hugo Platzer	34.7951
194	V.M.Ulyanov	34.7788
195	Leonid Muraviov	34.7753
196	Giovanni Di Maria	34.5567
197	Cyclamen Persicum	34.5441
198	Ed Pegg	34.4014
199	Richard FitzHugh	34.1466
200	Michael Kwok	34.1355
201	Sean A. Irvine	34.0515
202	Ed T. Prothro	33.9358
203	Andy Klingeleers	33.8707
204	Nuutti Kuosa	33.7910
205	Michael Eaton	33.7691
206	Tetsuya Kobayashi	33.6073
207	J. Alm & D. Johnson	33.5636
208	Göran Hemdal	33.2857
209	Hugo Pfoertner	33.2269
210	Giovanni La Barbera	33.1670
211	Polly T. Wang	32.8241
212	Guido Smetrijns	32.7635

^* : See the "Prime Pages" by Chris K. Caldwell for explanations about the production score used.

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Created by Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: April, 24 2025 12:56 (Time in France)

PRP Top - Top discoverers

Top discoverers by number of PRPs

Top discoverers by production score*

Top discoverers by production score^*