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Pandiagonal Magic Squares of Prime Numbers


The Pandiagonal Magic Squares of Prime Numbers contest has ended. Congratulations to our winners:

Position Winner Prize
1st Jarek Wroblewski Wroclaw, Poland Fifty United States Dollars
2nd Dmitry Kamenetsky Adelaide, Australia Bragging Rights


These are the contestants who submitted the best solution for each problem. (Problems for which the best solution was found during the first 48 hours of the contest are omitted.)

Problem Score Solver Date Achieved
7 x 7 769 Jarek Wroblewski Wroclaw, Poland 4 Aug 2013 03:26
8 x 8 1248 Jarek Wroblewski Wroclaw, Poland 16 Aug 2013 03:09
9 x 9 2025 Jarek Wroblewski Wroclaw, Poland 16 Jul 2013 18:12
10 x 10 2850 Jarek Wroblewski Wroclaw, Poland 12 Aug 2013 02:14
11 x 11 4199 Jarek Wroblewski Wroclaw, Poland 11 Jul 2013 02:11
12 x 12 5544 Jarek Wroblewski Wroclaw, Poland 17 Aug 2013 03:07
13 x 13 7631 Jarek Wroblewski Wroclaw, Poland 18 Aug 2013 18:30
14 x 14 9170 Jarek Wroblewski Wroclaw, Poland 10 Jul 2013 04:04
15 x 15 12645 Jarek Wroblewski Wroclaw, Poland 20 Jul 2013 04:17
16 x 16 13440 Jarek Wroblewski Wroclaw, Poland 18 Aug 2013 03:10
17 x 17 19493 Jarek Wroblewski Wroclaw, Poland 12 Jul 2013 09:48
18 x 18 22410 Jarek Wroblewski Wroclaw, Poland 13 Aug 2013 01:57
19 x 19 28439 Jarek Wroblewski Wroclaw, Poland 13 Jul 2013 15:32
20 x 20 29700 Jarek Wroblewski Wroclaw, Poland 14 Aug 2013 17:26


These are the best solutions received for each problem in the contest:

Problem Score Solution
6 x 6 450 (3,5,89,137,67,149), (109,83,103,101,37,17), (73,79,41,71,47,139), (107,97,43,53,131,19), (31,23,167,59,157,13), (127,163,7,29,11,113)
(3,37,151,113,67,79), (53,89,61,43,73,131), (109,181,11,71,19,59), (5,29,23,179,167,47), (173,97,101,31,41,7), (107,17,103,13,83,127)
7 x 7 769 (3,47,139,227,173,127,53), (191,113,179,71,11,7,197), (211,79,59,151,157,89,23), (5,107,31,163,97,199,167), (83,263,19,73,181,13,137), (37,131,281,67,109,101,43), (239,29,61,17,41,233,149)
8 x 8 1248 (5,37,107,157,229,311,271,131), (73,239,397,173,197,13,113,43), (293,313,11,97,181,149,103,101), (223,83,151,71,53,241,233,193), (167,127,179,31,277,317,61,89), (67,59,139,281,269,109,17,307), (137,349,257,211,19,29,199,47), (283,41,7,227,23,79,251,337)
9 x 9 2025 (3,97,179,109,107,71,283,599,577), (103,257,263,61,389,409,131,239,173), (89,311,467,41,401,79,11,433,193), (113,491,197,251,359,127,199,149,139), (53,191,223,19,229,499,181,337,293), (691,269,157,227,37,67,353,151,73), (167,31,7,443,163,379,457,29,349), (439,241,101,641,59,47,397,83,17), (367,137,431,233,281,347,13,5,211)
10 x 10 2850 (5,13,331,139,449,607,281,461,401,163), (181,509,239,419,211,71,31,157,541,491), (503,43,409,367,431,7,101,197,479,313), (103,227,311,347,307,359,601,109,97,389), (557,67,79,613,251,37,317,89,179,661), (283,149,353,137,199,641,421,349,127,191), (293,61,379,229,59,769,41,593,233,193), (571,881,17,29,241,173,487,151,277,23), (131,643,463,457,263,19,47,11,443,373), (223,257,269,113,439,167,523,733,73,53)
11 x 11 4199 (5,263,773,397,757,191,43,719,523,109,419), (383,661,601,107,211,677,313,877,281,41,47), (151,389,71,229,139,1093,197,431,659,29,811), (547,433,97,907,73,193,227,167,331,283,941), (439,641,137,823,541,53,569,13,563,271,149), (509,269,157,409,367,127,739,61,401,673,487), (311,101,19,373,751,701,503,457,31,929,23), (7,691,743,199,443,613,103,251,113,863,173), (449,67,467,379,277,131,557,521,317,853,181), (821,223,1051,359,293,257,179,349,337,89,241), (577,461,83,17,347,163,769,353,643,59,727)
12 x 12 5544 (5,101,887,503,281,457,523,13,1609,7,571,587), (607,241,193,61,277,953,863,797,29,509,131,883), (197,971,683,359,563,151,19,907,211,283,223,977), (643,1039,73,181,829,17,743,263,347,983,59,367), (839,701,293,107,149,877,673,577,439,79,727,83), (331,271,1327,139,433,1259,11,401,467,491,257,157), (23,641,41,311,647,127,109,1033,499,739,547,827), (199,229,1063,337,349,71,1163,113,269,431,911,409), (1019,167,227,1229,569,97,691,103,769,43,397,233), (37,163,313,1303,463,461,89,353,239,1193,389,541), (653,599,137,191,47,757,67,733,487,613,811,449), (991,421,307,823,937,317,593,251,179,173,521,31)
13 x 13 7631 (5,109,383,967,701,61,509,773,257,337,1783,1303,443), (1283,809,13,853,229,317,1259,751,347,691,23,997,59), (73,677,43,101,1279,191,2081,11,127,769,241,1217,821), (521,661,367,499,131,947,571,941,811,227,541,617,797), (89,1039,1061,1993,461,587,233,457,31,193,479,179,829), (313,307,631,251,173,907,653,199,1699,1109,239,197,953), (757,569,643,167,113,863,151,683,331,719,79,1237,1319), (397,613,839,761,433,29,577,1201,1021,547,937,269,7), (881,1009,929,563,971,283,379,211,1033,727,103,19,523), (463,107,389,607,1013,439,491,601,157,1193,1607,401,163), (823,281,1583,17,97,1069,409,83,1229,599,37,373,1031), (467,593,487,503,1291,1019,271,1361,311,449,139,673,67), (1559,857,263,349,739,919,47,359,277,71,1423,149,619)
14 x 14 9170 (7,503,719,229,127,199,1567,353,29,593,809,1039,1327,1669), (647,521,31,251,571,761,811,373,1381,283,197,673,947,1723), (877,1163,1499,659,179,709,457,1129,367,653,293,19,547,619), (1291,103,1367,13,17,1093,467,641,1051,941,181,1151,211,643), (67,859,577,443,1259,1429,37,409,757,383,1289,233,599,829), (151,1811,1321,1031,601,823,1021,523,317,163,827,43,347,191), (727,109,967,587,929,53,149,769,1087,1459,853,743,239,499), (167,463,857,613,47,101,661,461,331,1571,1531,1153,991,223), (449,379,157,1249,907,113,479,739,1237,139,937,1193,419,773), (241,881,631,1489,1171,313,677,883,137,1063,821,41,541,281), (1949,1009,277,1069,787,683,269,83,89,439,97,1279,1117,23), (887,733,107,701,1621,71,691,401,61,433,421,1213,797,1033), (509,563,389,349,397,1399,1627,1103,1019,919,307,79,337,173), (1201,73,271,487,557,1423,257,1303,1307,131,607,311,751,491)
15 x 15 12645 (3,173,41,1657,101,2153,1601,719,479,691,1453,521,317,1277,1459), (193,2551,31,229,1597,23,1723,37,29,601,379,277,2113,2203,659), (1523,647,1213,1103,631,937,167,883,709,2239,509,1229,47,191,617), (761,2137,607,557,733,1499,971,179,353,439,1061,1889,811,227,421), (587,151,2341,863,1069,1621,757,941,701,1123,683,17,1381,103,307), (743,11,569,523,839,263,1093,2459,79,953,1151,1289,233,1427,1013), (2099,5,571,197,199,1153,1279,1091,109,673,1811,311,1321,1489,337), (431,2087,1051,1571,349,331,503,71,1259,619,367,1433,1399,401,773), (577,1447,347,1877,1039,13,419,1181,1663,857,491,463,131,653,1487), (907,269,967,409,1831,727,977,1607,1019,149,139,1063,67,1283,1231), (107,373,983,257,1171,643,599,281,1367,211,1907,1823,1559,487,877), (1867,397,751,1291,449,53,929,1787,1949,127,389,61,7,919,1669), (1531,313,241,821,997,1999,223,1049,1033,1451,73,641,1163,859,251), (547,613,2339,823,1543,947,383,271,137,443,1201,19,2053,239,1087), (769,1471,593,467,97,283,1021,89,1759,2069,1031,1609,43,887,457)
16 x 16 13440 (7,109,467,829,1423,349,1607,1129,197,701,1483,401,827,1997,613,1301), (127,809,1567,419,547,509,37,1409,1823,2011,503,31,743,691,1277,937), (1847,1031,1453,1361,1487,641,523,491,1153,1039,137,1699,73,79,47,379), (53,1531,263,211,773,1741,1103,241,277,569,1297,89,1867,1049,1087,1289), (643,1579,677,1609,283,1459,1097,859,617,11,1033,881,1637,191,733,131), (1747,1229,577,479,1237,359,877,719,563,601,293,1231,1193,151,233,1951), (1217,101,163,41,317,761,433,281,1123,769,947,2029,1543,1249,977,1489), (683,811,983,541,1493,661,863,1381,157,1499,607,1319,1447,269,487,239), (1663,739,857,1669,853,139,1307,499,647,1511,43,431,887,911,463,821), (97,179,1657,2069,457,839,997,449,1523,991,383,751,23,1171,1583,271), (17,311,1093,521,1427,1871,1303,1601,1723,1069,557,19,373,619,227,709), (443,331,173,1801,113,61,1223,1051,967,29,2287,1619,787,389,727,1439), (883,1759,797,229,823,439,257,919,587,71,223,251,1367,1571,1783,1481), (2557,1259,907,1019,367,929,337,149,83,421,953,1021,353,1291,1163,631), (347,1091,1213,461,107,1061,193,941,673,1549,2297,1009,13,199,1973,313), (1109,571,593,181,1733,1621,1283,1321,1327,599,397,659,307,1613,67,59)
17 x 17 19493 (5,149,641,2689,2417,521,271,1667,523,907,2309,1663,37,3191,967,1297,239), (937,2087,467,941,809,1783,911,3299,757,1487,607,1423,569,211,79,983,2143), (2129,1123,2017,587,2711,167,503,19,3011,113,1249,389,829,1117,53,1093,2383), (1033,1051,863,1669,157,977,1259,719,761,13,197,2237,2833,2699,1069,1129,827), (97,593,991,1933,2297,331,739,353,1979,41,1607,643,137,443,1873,2549,2887), (1877,577,1429,11,223,463,1973,1999,1489,563,2039,929,3539,919,461,401,601), (1217,1453,1439,2347,373,2027,1171,877,1049,1549,61,2441,1571,1433,89,337,59), (673,3083,1511,283,1913,1321,487,1697,103,1741,653,997,1459,683,1193,1277,419), (311,1427,2521,1523,23,1579,257,307,769,1373,367,1447,1229,1567,1279,2411,1103), (599,701,881,83,1693,1481,1993,1637,2069,3001,1879,47,127,1597,659,499,547), (541,2467,1031,2267,73,1327,1747,269,1213,1231,1061,1621,397,1163,1753,109,1223), (199,191,2161,1283,1187,1009,409,743,797,2663,1931,229,1097,1021,151,3119,1303), (1733,1657,751,379,3373,1831,421,1039,479,647,139,1013,17,1801,2693,859,661), (613,733,317,241,1319,181,1201,433,857,2753,347,2207,2137,887,1871,619,2777), (3259,1361,2083,349,449,43,1867,173,1471,1087,2273,821,431,251,1531,1811,233), (2861,383,31,2801,163,2029,1493,2251,67,131,1291,277,953,71,2213,491,1987), (1409,457,359,107,313,2423,2791,2011,2099,193,1483,1109,2131,439,1559,509,101)
18 x 18 22410 (5,1117,2857,457,1481,1439,409,571,1931,421,3041,47,3209,229,607,953,599,3037), (1423,2207,29,887,2767,613,1979,233,919,2111,157,1567,331,1223,1361,2803,13,1787), (1553,661,2389,859,17,149,1087,3391,2753,79,1949,101,1709,3109,1747,293,251,313), (97,881,1193,653,1249,2113,773,53,2683,983,487,1609,2179,509,1877,1093,2551,1427), (227,2011,1471,499,419,1613,2593,3019,557,601,317,11,587,1153,2503,1049,929,2851), (1297,2999,353,2069,2221,1723,383,239,1279,2339,67,1069,2539,1511,389,1291,73,569), (191,907,283,3181,359,1583,1663,2203,1097,109,1187,2003,1109,1777,811,2213,1571,163), (277,2657,71,2099,2689,1801,521,2297,937,173,181,223,2029,2417,941,1627,1039,431), (3491,307,61,853,659,1607,643,103,827,1231,401,863,2129,1009,967,2243,1499,3517), (1951,113,2963,563,1621,757,2309,137,823,3947,1033,1237,271,1091,41,199,2707,647), (593,541,37,2137,89,1997,2161,1867,839,2311,83,2819,1433,631,1699,701,2441,31), (547,257,1103,1373,769,991,443,2633,151,911,1993,439,2371,3881,1307,877,1861,503), (2549,1171,1051,1789,2621,467,211,1129,761,751,5039,1277,449,739,349,1289,59,709), (463,1451,2609,1973,1933,337,2081,617,3373,23,241,1831,127,263,347,1381,1549,1811), (2957,1399,433,373,1163,1409,397,1657,1319,43,857,3023,179,727,1693,1013,971,2797), (1303,1871,1151,1847,7,523,311,131,787,3911,1753,1597,19,479,2459,1453,2347,461), (2039,1579,2269,691,2153,2711,1759,1321,491,1669,977,641,743,139,619,719,1217,673), (1447,281,2087,107,193,577,2687,809,883,797,2647,2053,997,1523,2693,1213,733,683)
19 x 19 28439 (5,883,2539,3209,223,2719,1823,443,673,2389,3571,359,1231,3343,1637,1123,47,349,1873), (2647,743,1069,97,317,1559,1607,1217,2251,5039,439,587,191,1567,761,1453,3541,971,2383), (1051,1021,1709,4091,2141,2393,139,23,89,2239,1163,1801,1571,1249,3259,1373,421,2113,593), (1103,1499,839,1889,2371,2411,1787,2833,509,7,4013,37,1699,1439,613,1933,1289,1039,1129), (2789,5147,1459,1553,617,241,2729,1327,863,1483,733,947,1447,1303,683,1321,997,1913,887), (991,449,2099,3613,953,1033,293,463,1471,2837,2689,2287,3323,1753,43,263,2621,827,431), (2897,3061,107,1291,137,1093,3229,2081,2677,181,1277,2137,811,269,1433,1019,719,937,3083), (2003,1213,1619,601,1489,101,859,631,389,2797,379,5813,1871,2459,149,1693,2633,311,1429), (4271,1759,1549,59,1627,211,1367,2953,619,1259,197,3449,1601,1723,647,2591,1087,563,907), (2767,173,277,1657,281,367,2281,3191,1949,1283,1487,1861,1613,1361,67,1721,2467,167,3469), (31,4861,1097,331,1153,2861,1901,227,1307,1423,3863,29,103,1481,787,251,3079,2671,983), (41,1399,193,2699,1061,1877,2087,1789,2927,701,2659,821,2473,599,3559,877,1451,499,727), (1297,3221,3989,1223,1997,271,503,383,2089,881,19,857,163,2011,2477,1783,457,1697,3121), (257,17,4463,739,1319,2207,3019,179,2917,2063,409,2293,1427,823,127,1031,313,2707,2129), (641,109,521,809,3187,83,61,3167,2269,757,677,691,1531,11,3823,4003,569,3089,2441), (479,353,3181,53,1951,2687,3307,3631,1979,433,2053,491,487,1237,467,1151,1193,2909,397), (577,911,151,2339,2593,709,419,2731,2753,523,1609,1663,2963,1187,3617,1013,1621,929,131), (1741,653,1117,2029,113,1669,829,229,307,547,919,2083,2027,2381,4051,1493,2843,2749,659), (2851,967,461,157,4909,3947,199,941,401,1597,283,233,1907,2243,239,2347,1091,1999,1667)
20 x 20 29700 (7,191,797,181,5347,1871,2417,271,1777,941,647,3001,937,1091,47,2161,1237,1931,3797,1051), (283,139,953,2939,1063,1009,1973,2549,1723,2269,653,149,3373,1669,2693,419,853,1609,1283,2099), (2017,2311,467,3911,967,1621,2027,1181,997,601,1697,3491,2647,151,3137,881,787,661,107,41), (2213,29,523,2719,1163,89,2953,919,683,1889,3643,1759,173,929,1153,1579,2273,1439,463,3109), (2677,1471,257,1061,2347,751,2657,281,457,2011,677,2591,1117,1861,827,761,1567,3931,2267,131), (3323,3259,673,3389,2003,79,613,569,743,1459,1303,359,293,439,2143,2789,1553,1489,2203,1019), (17,211,1627,1811,167,2671,2467,2081,2897,421,157,461,3557,1171,1327,1451,2237,3061,397,1511), (233,3539,2113,109,2423,239,373,1999,2543,2309,2083,3049,263,1109,2503,859,2243,1259,73,379), (877,1151,1907,1831,1447,521,557,2131,3307,71,617,631,67,3221,977,1741,2797,641,2687,2521), (1033,449,2063,409,1753,3659,2393,1429,193,1289,4133,3709,1453,1049,443,229,823,1559,563,1069), (947,61,2137,11,1487,2551,757,3581,197,3121,2617,251,1187,1321,277,401,3257,1021,1987,2531), (3023,1229,433,769,503,2609,1693,709,593,389,1093,2389,383,2729,1873,739,2963,1499,2293,1789), (2837,701,2767,241,1667,1571,727,2371,2207,311,1657,1291,1217,971,307,3571,1427,431,37,3391), (733,2179,1583,2879,643,2539,113,59,1663,499,863,479,2053,2029,2153,509,163,3319,2333,2909), (1097,3191,607,811,1637,1361,2557,1951,1787,2141,2377,1531,1277,491,1747,2281,857,101,907,991), (1993,2579,1193,1549,1543,2459,1823,2239,2683,2069,1103,349,3343,659,773,2749,313,179,83,19), (127,2381,227,541,337,1601,317,2341,1087,1721,3527,571,547,2741,4337,691,97,3041,2087,1381), (2803,1249,1523,599,223,1039,1493,809,2593,1399,353,269,1783,829,1013,4259,3613,619,1613,1619), (2477,3181,4057,1901,1607,331,367,821,137,3511,487,1031,2297,2221,1867,911,587,31,577,1301), (983,199,3793,2039,1373,1129,1423,1409,1433,1279,13,2339,1733,3019,103,719,53,1879,3943,839)


The following noteworthy solutions were received after the contest ended.

Problem Solver / Score / Date
(Solution)
7 x 7 Jarek Wroblewski 761 23 Aug 2013 03:49
Jarek Wroblewski 755 26 Aug 2013 16:08
Wes Sampson 749 30 Aug 2013 01:24
Wes Sampson 737 20 Sep 2013 01:59
Jarek Wroblewski 733 10 Oct 2013 02:22
(3, 7, 173, 223, 17, 197, 113), (181, 211, 11, 79, 131, 23, 97), (43, 41, 149, 89, 137, 191, 83), (233, 103, 107, 73, 127, 31, 59), (29, 167, 101, 19, 199, 67, 151), (5, 47, 139, 179, 109, 61, 193), (239, 157, 53, 71, 13, 163, 37)
8 x 8 Michael Hürter 1224 17 Sep 2021 20:02
Michael Hürter 1192 27 Dec 2021 20:54
(3, 157, 283, 251, 109, 53, 73, 263), (199, 173, 103, 5, 311, 31, 233, 137), (163, 71, 181, 257, 83, 29, 179, 229), (47, 223, 43, 367, 107, 277, 67, 61), (151, 227, 7, 101, 11, 167, 337, 191), (241, 211, 131, 113, 281, 59, 139, 17), (149, 89, 431, 79, 97, 197, 127, 23), (239, 41, 13, 19, 193, 379, 37, 271)
9 x 9 Michael Hürter 1845 24 Sep 2021 12:01
Michael Hürter 1791 27 Dec 2021 20:56
(3, 83, 151, 103, 127, 179, 239, 509, 397), (257, 379, 229, 373, 181, 211, 47, 41, 73), (467, 17, 89, 283, 157, 29, 223, 389, 137), (107, 113, 311, 307, 131, 71, 409, 101, 241), (199, 281, 7, 317, 443, 13, 331, 37, 163), (53, 173, 263, 11, 149, 277, 313, 359, 193), (337, 433, 23, 227, 197, 167, 59, 97, 251), (19, 233, 449, 139, 5, 353, 109, 191, 293), (349, 79, 269, 31, 401, 491, 61, 67, 43)
10 x 10 Michael Hürter 2670 24 Sep 2021 12:04
Michael Hürter 2650 27 Dec 2021 20:59
Michael Hürter 2590 2 Jul 2022 12:53
(3, 43, 307, 73, 373, 257, 383, 379, 293, 479), (199, 61, 619, 317, 103, 227, 521, 31, 163, 349), (421, 113, 557, 29, 269, 37, 211, 23, 491, 439), (149, 83, 563, 127, 509, 263, 367, 71, 277, 181), (17, 313, 7, 239, 461, 173, 487, 607, 89, 197), (233, 601, 19, 359, 139, 337, 59, 11, 431, 401), (523, 409, 281, 137, 167, 13, 251, 347, 191, 271), (79, 241, 53, 397, 311, 719, 47, 503, 131, 109), (353, 443, 5, 463, 101, 457, 41, 467, 193, 67), (613, 283, 179, 449, 157, 107, 223, 151, 331, 97)
11 x 11 Jarek Wroblewski 4195 18 Sep 2013 03:48
Michael Hürter 3993 24 Sep 2021 12:05
Michael Hürter 3619 27 Dec 2021 20:59
(3, 89, 251, 23, 5, 661, 547, 479, 163, 757, 641), (631, 397, 257, 107, 389, 127, 367, 311, 83, 337, 613), (199, 137, 373, 421, 233, 239, 883, 11, 439, 241, 443), (283, 379, 313, 331, 463, 503, 647, 317, 31, 173, 179), (19, 701, 281, 487, 271, 383, 79, 227, 191, 523, 457), (71, 659, 431, 59, 293, 401, 359, 197, 419, 563, 167), (601, 73, 751, 277, 97, 37, 461, 7, 541, 617, 157), (103, 307, 29, 17, 733, 353, 67, 709, 773, 61, 467), (229, 181, 499, 607, 449, 53, 13, 863, 349, 113, 263), (827, 139, 211, 409, 643, 593, 47, 347, 109, 193, 101), (653, 557, 223, 881, 43, 269, 149, 151, 521, 41, 131)
12 x 12 Michael Hürter 5124 24 Sep 2021 12:06
Michael Hürter 4932 27 Dec 2021 21:02
Michael Hürter 4908 2 Jul 2022 13:01
(3, 229, 757, 251, 19, 139, 109, 773, 277, 919, 929, 503), (439, 631, 463, 521, 523, 617, 541, 137, 47, 499, 233, 257), (761, 691, 17, 449, 347, 983, 701, 43, 491, 223, 113, 89), (569, 359, 11, 131, 433, 647, 557, 41, 373, 827, 853, 107), (677, 353, 383, 59, 659, 227, 271, 487, 829, 883, 67, 13), (419, 1013, 211, 389, 151, 317, 653, 181, 283, 97, 727, 467), (7, 719, 1049, 619, 683, 613, 331, 311, 409, 79, 83, 5), (607, 193, 167, 29, 263, 73, 157, 839, 313, 461, 479, 1327), (191, 71, 641, 577, 599, 61, 547, 337, 937, 401, 397, 149), (571, 163, 241, 787, 379, 23, 587, 443, 881, 197, 127, 509), (101, 179, 601, 857, 431, 457, 173, 967, 31, 269, 103, 739), (563, 307, 367, 239, 421, 751, 281, 349, 37, 53, 797, 743)
13 x 13 Jarek Wroblewski 7627 18 Sep 2013 07:32
Jarek Wroblewski 7597 22 Sep 2013 19:00
Michael Hürter 7293 24 Sep 2021 12:06
Michael Hürter 6539 27 Dec 2021 21:03
Michael Hürter 6513 2 Jul 2022 13:03
(3, 5, 1117, 1181, 1151, 613, 631, 1163, 337, 151, 31, 59, 71), (787, 157, 43, 359, 449, 1019, 181, 673, 347, 179, 983, 1103, 233), (1039, 101, 89, 47, 277, 7, 397, 751, 503, 1223, 479, 719, 881), (229, 1427, 127, 283, 853, 907, 251, 653, 593, 311, 829, 37, 13), (733, 1129, 379, 137, 107, 571, 599, 431, 557, 199, 239, 131, 1301), (607, 563, 211, 509, 911, 149, 863, 19, 839, 83, 373, 919, 467), (317, 643, 857, 409, 577, 647, 1009, 293, 619, 457, 223, 23, 439), (109, 859, 887, 269, 29, 401, 967, 701, 281, 353, 383, 811, 463), (113, 521, 769, 167, 569, 997, 73, 313, 1061, 691, 53, 443, 743), (271, 797, 163, 191, 197, 487, 677, 79, 541, 1567, 661, 461, 421), (307, 41, 683, 1123, 139, 587, 523, 257, 241, 349, 1021, 641, 601), (1051, 173, 17, 1291, 821, 67, 331, 419, 367, 757, 499, 103, 617), (947, 97, 1171, 547, 433, 61, 11, 761, 227, 193, 739, 1063, 263)
14 x 14 Michael Hürter 9086 24 Sep 2021 12:08
Michael Hürter 8582 27 Dec 2021 21:04
Michael Hürter 8414 2 Jul 2022 13:04
(3, 293, 773, 761, 857, 571, 859, 503, 733, 199, 1013, 691, 769, 389), (547, 557, 307, 239, 1889, 37, 1367, 229, 787, 659, 7, 709, 227, 853), (719, 251, 487, 1237, 317, 827, 349, 541, 83, 977, 197, 947, 643, 839), (911, 1429, 191, 271, 137, 1289, 257, 479, 233, 619, 797, 1627, 113, 61), (823, 11, 523, 23, 89, 617, 683, 461, 1061, 331, 863, 193, 953, 1783), (701, 359, 601, 1361, 739, 269, 821, 1229, 17, 1459, 149, 599, 79, 31), (1093, 1423, 509, 383, 29, 1301, 19, 1427, 59, 631, 499, 467, 53, 521), (5, 313, 241, 1063, 1283, 283, 1021, 103, 1117, 1019, 97, 13, 919, 937), (397, 1847, 419, 163, 139, 277, 353, 431, 1291, 379, 907, 491, 727, 593), (1297, 67, 1193, 173, 569, 433, 971, 563, 811, 211, 677, 43, 967, 439), (457, 167, 1399, 743, 881, 757, 179, 887, 281, 613, 1321, 71, 311, 347), (47, 1187, 109, 587, 151, 127, 443, 983, 131, 607, 877, 1877, 107, 1181), (263, 409, 449, 1009, 673, 577, 1051, 421, 1163, 373, 181, 223, 1549, 73), (1151, 101, 1213, 401, 661, 1049, 41, 157, 647, 337, 829, 463, 997, 367)
15 x 15 Michael Hürter 11955 24 Sep 2021 12:09
Michael Hürter 10905 2 Jul 2022 12:49
(3, 5, 1429, 2137, 1567, 1913, 1993, 661, 31, 491, 7, 139, 271, 241, 17), (839, 13, 569, 1303, 787, 107, 883, 773, 1213, 431, 37, 1327, 1439, 61, 1123), (479, 307, 127, 349, 487, 829, 311, 1153, 1051, 1373, 2081, 557, 211, 1307, 283), (1699, 1009, 11, 1399, 809, 937, 101, 19, 991, 743, 1063, 223, 1039, 269, 593), (167, 1427, 821, 541, 691, 443, 191, 71, 857, 647, 571, 751, 79, 2099, 1549), (1033, 997, 239, 1237, 1489, 1031, 613, 163, 199, 1129, 449, 641, 503, 659, 523), (601, 1487, 1163, 97, 457, 181, 1451, 131, 149, 1049, 2239, 317, 643, 683, 257), (409, 353, 281, 313, 797, 67, 1103, 1693, 1171, 509, 673, 1613, 929, 23, 971), (761, 1523, 877, 853, 29, 1669, 359, 1481, 461, 701, 151, 83, 547, 109, 1301), (263, 373, 2087, 1181, 419, 983, 179, 1627, 947, 521, 439, 137, 977, 173, 599), (1061, 347, 43, 379, 941, 73, 1723, 1087, 157, 727, 1319, 1279, 1433, 103, 233), (677, 499, 887, 421, 1019, 227, 757, 433, 1231, 653, 193, 617, 337, 1297, 1657), (53, 619, 1201, 331, 1283, 967, 197, 401, 953, 47, 383, 1091, 709, 1811, 859), (1493, 1579, 563, 113, 89, 229, 467, 919, 631, 277, 911, 1223, 719, 811, 881), (1367, 367, 607, 251, 41, 1249, 577, 293, 863, 1607, 389, 907, 1069, 1259, 59)
16 x 16 Michael Hürter 13424 2 Jul 2022 12:56
(3, 11, 293, 1237, 53, 1913, 2099, 131, 263, 1901, 881, 1249, 757, 883, 1259, 491), (13, 317, 227, 463, 251, 157, 1873, 41, 1181, 1733, 1319, 353, 1447, 1789, 1229, 1031), (101, 1459, 1217, 1091, 1201, 373, 1063, 151, 367, 173, 443, 733, 613, 1571, 991, 1877), (83, 1381, 1153, 1009, 563, 503, 1289, 113, 1373, 397, 1663, 1321, 179, 1151, 593, 653), (5, 643, 1429, 1601, 2683, 167, 1409, 67, 1999, 71, 229, 1297, 73, 281, 1193, 277), (103, 719, 857, 509, 1427, 31, 1471, 1097, 1019, 431, 839, 541, 127, 1483, 557, 2213), (419, 433, 877, 331, 283, 1367, 773, 1609, 683, 149, 929, 577, 2333, 1013, 137, 1511), (269, 1481, 2381, 1093, 619, 1307, 79, 43, 47, 997, 421, 751, 383, 547, 1453, 1553), (1693, 439, 409, 743, 701, 233, 349, 787, 829, 1279, 1231, 1327, 1831, 919, 193, 461), (467, 257, 37, 769, 191, 1123, 739, 1423, 1129, 2399, 1697, 487, 631, 181, 617, 1277), (1597, 953, 827, 811, 1109, 1669, 907, 1973, 163, 211, 1061, 271, 659, 97, 1087, 29), (1619, 223, 571, 1163, 599, 139, 1049, 971, 1637, 677, 499, 761, 859, 523, 1487, 647), (2081, 1579, 313, 379, 977, 457, 59, 601, 197, 911, 1439, 1811, 569, 863, 709, 479), (1499, 941, 449, 1559, 1747, 823, 241, 1777, 89, 607, 401, 23, 1051, 1069, 1039, 109), (2039, 1567, 853, 359, 347, 1801, 17, 1979, 337, 967, 311, 199, 1103, 107, 641, 797), (1433, 1021, 1531, 307, 673, 1361, 7, 661, 2111, 521, 61, 1723, 809, 947, 239, 19)
17 x 17 Jarek Wroblewski 19393 17 Sep 2013 04:13
Michael Hürter 18717 24 Sep 2021 12:10
Michael Hürter 17697 27 Dec 2021 21:04
Michael Hürter 16847 2 Jul 2022 13:08
(3, 5, 7, 31, 859, 13, 167, 269, 421, 829, 1109, 1619, 1571, 2647, 2287, 3163, 1847), (431, 367, 1499, 953, 1381, 1801, 1493, 1409, 619, 1901, 109, 461, 1291, 1117, 691, 1307, 17), (971, 919, 3167, 23, 1049, 569, 211, 821, 547, 1429, 2437, 947, 349, 487, 887, 1171, 863), (239, 1361, 617, 2027, 241, 271, 2179, 653, 1553, 857, 769, 761, 647, 389, 1301, 1693, 1289), (787, 2213, 641, 353, 2633, 977, 811, 101, 1399, 1523, 227, 383, 277, 1319, 89, 1741, 1373), (293, 37, 83, 2053, 701, 179, 1879, 677, 1999, 1039, 1093, 2243, 2383, 373, 499, 907, 409), (541, 1747, 751, 877, 2357, 967, 2087, 163, 709, 739, 607, 281, 823, 1087, 2063, 251, 797), (2467, 443, 113, 1627, 347, 173, 1447, 2203, 1097, 2143, 73, 983, 827, 337, 331, 1223, 1013), (503, 1031, 1579, 1471, 71, 1777, 577, 2557, 307, 263, 131, 1489, 1321, 191, 2161, 139, 1279), (2029, 79, 1213, 29, 449, 2141, 317, 149, 991, 673, 1877, 1873, 1033, 929, 911, 1063, 1091), (1021, 1907, 1567, 257, 199, 727, 97, 1151, 59, 613, 491, 1783, 1069, 1597, 1181, 757, 2371), (521, 397, 593, 313, 1823, 229, 479, 1297, 433, 467, 1871, 631, 2089, 1367, 2273, 67, 1997), (1831, 563, 743, 43, 1201, 2549, 2441, 1237, 599, 661, 1987, 839, 127, 61, 773, 683, 509), (1103, 2579, 1433, 2297, 151, 2281, 107, 997, 1549, 181, 1259, 137, 587, 1153, 157, 419, 457), (359, 197, 53, 809, 2221, 379, 2069, 1009, 1699, 937, 1303, 1129, 719, 1283, 463, 1559, 659), (1217, 283, 1187, 883, 1123, 1621, 439, 1583, 1229, 1531, 1193, 1277, 853, 1459, 223, 103, 643), (2531, 2719, 1601, 2801, 41, 193, 47, 571, 1637, 1061, 311, 11, 881, 1051, 557, 601, 233)
18 x 18 Michael Hürter 22014 24 Sep 2021 12:15
Michael Hürter 20214 2 Jul 2022 12:44
(3, 107, 977, 1321, 1831, 3469, 443, 1307, 1279, 1453, 1889, 1709, 1327, 197, 683, 569, 487, 1163), (1061, 131, 733, 349, 421, 3389, 2027, 1871, 163, 2753, 167, 641, 409, 1823, 1021, 1733, 11, 1511), (2371, 719, 941, 373, 1637, 3461, 557, 1063, 359, 13, 281, 1867, 191, 1951, 1439, 1571, 233, 1187), (457, 367, 83, 241, 2741, 983, 1129, 149, 1109, 821, 1583, 1249, 2111, 701, 1877, 2503, 1973, 137), (1787, 1567, 929, 239, 541, 2917, 1069, 1049, 1213, 257, 127, 1987, 1033, 37, 1753, 521, 1171, 2017), (947, 811, 599, 2063, 1483, 839, 97, 467, 1051, 2099, 1423, 1409, 1427, 383, 1481, 761, 1153, 1721), (263, 79, 757, 1789, 2207, 1231, 863, 659, 2113, 317, 1301, 113, 829, 2609, 1009, 1697, 1459, 919), (1019, 1123, 53, 877, 2803, 283, 1553, 617, 577, 1723, 1667, 1093, 1303, 1373, 709, 991, 1543, 907), (1031, 1429, 601, 809, 2897, 251, 1487, 1783, 2053, 769, 61, 461, 587, 109, 2089, 1259, 1447, 1091), (1901, 2663, 1097, 401, 479, 193, 673, 223, 2221, 1471, 1579, 607, 313, 1103, 1621, 1627, 181, 1861), (691, 1913, 1619, 2687, 503, 41, 463, 1151, 593, 337, 743, 2069, 911, 823, 2459, 379, 2539, 293), (2081, 431, 2423, 1367, 179, 19, 971, 1549, 2251, 2269, 2297, 967, 2239, 199, 157, 67, 677, 71), (797, 1277, 1399, 1181, 151, 47, 2617, 2957, 2789, 2381, 419, 173, 1759, 937, 211, 103, 739, 277), (1117, 647, 3929, 2833, 271, 29, 1217, 1223, 1201, 23, 953, 1607, 2347, 311, 439, 1663, 73, 331), (997, 523, 619, 59, 31, 17, 2477, 857, 7, 1319, 727, 631, 1531, 1699, 1381, 1879, 2683, 2777), (1451, 859, 2179, 2351, 43, 887, 269, 2083, 653, 773, 1493, 1039, 227, 1087, 881, 1997, 509, 1433), (751, 3191, 827, 661, 89, 5, 1013, 563, 353, 1297, 2311, 2203, 787, 2143, 433, 547, 2939, 101), (1489, 2377, 449, 613, 1907, 2153, 1289, 643, 229, 139, 1193, 389, 883, 2729, 571, 347, 397, 2417)
19 x 19 Jarek Wroblewski 28379 15 Sep 2013 18:51
Michael Hürter 27303 24 Sep 2021 12:16
Michael Hürter 25593 2 Jul 2022 13:09
(3, 11, 1523, 149, 1259, 647, 1783, 2441, 1447, 877, 653, 2347, 1607, 1217, 947, 1999, 2789, 3463, 431), (71, 7, 547, 2521, 317, 1669, 2287, 2333, 2609, 701, 1579, 613, 1291, 2833, 163, 1471, 439, 1483, 2659), (1181, 179, 2243, 1321, 1201, 2687, 2351, 2251, 733, 541, 1879, 307, 929, 3461, 337, 607, 503, 211, 2671), (2381, 461, 2647, 1877, 1823, 281, 1307, 569, 1289, 1481, 1163, 1153, 1951, 349, 523, 1601, 73, 1867, 2797), (2963, 1619, 229, 59, 557, 4013, 1667, 1283, 67, 101, 1663, 167, 1531, 1913, 2767, 1063, 499, 2579, 853), (1987, 1249, 1931, 659, 1103, 43, 1567, 3049, 397, 1129, 1361, 193, 1193, 2237, 1487, 727, 367, 1847, 3067), (2297, 2549, 313, 599, 1709, 2927, 937, 743, 421, 3491, 83, 1801, 2713, 641, 1753, 19, 1039, 1427, 131), (463, 2087, 41, 2909, 3229, 577, 373, 1231, 739, 521, 1613, 1381, 859, 2903, 1759, 241, 2473, 971, 1223), (277, 857, 479, 37, 491, 2393, 389, 1993, 223, 1873, 2887, 3469, 977, 191, 2591, 2213, 3529, 467, 257), (2411, 1637, 827, 2029, 2699, 1091, 1553, 2273, 79, 661, 2131, 1433, 199, 821, 433, 673, 2477, 863, 1303), (1423, 1297, 593, 1549, 151, 953, 1499, 379, 1597, 3617, 3541, 263, 2861, 1019, 283, 2141, 233, 1997, 197), (1721, 3583, 2389, 1489, 2143, 1627, 683, 1409, 401, 271, 1301, 2203, 919, 1033, 809, 487, 1571, 61, 1493), (227, 2113, 1831, 2089, 2719, 1367, 137, 409, 2269, 29, 53, 811, 3347, 13, 2081, 787, 3329, 769, 1213), (631, 2741, 23, 139, 1031, 983, 2551, 359, 2663, 2617, 181, 2791, 443, 2311, 2281, 601, 2179, 619, 449), (2557, 269, 941, 103, 2371, 109, 1151, 2677, 4409, 881, 911, 1237, 347, 907, 1123, 2293, 331, 1229, 1747), (991, 3041, 3221, 1277, 1609, 571, 1789, 1051, 419, 1319, 1733, 797, 509, 1279, 3167, 353, 383, 2053, 31), (2953, 1871, 1049, 1187, 113, 2377, 1117, 173, 761, 887, 311, 2017, 773, 97, 2221, 4019, 1373, 2137, 157), (967, 17, 3109, 2749, 1021, 587, 1439, 293, 3181, 1777, 1097, 709, 1171, 239, 251, 2437, 1009, 1093, 2447), (89, 5, 1657, 2851, 47, 691, 1013, 677, 1889, 2819, 1453, 1901, 1973, 2129, 617, 1861, 997, 457, 2467)
20 x 20 Michael Hürter 29660 17 Sep 2021 20:07
Michael Hürter 28820 2 Jul 2022 13:15
(3, 7, 11, 13, 1039, 3389, 139, 31, 227, 557, 53, 1427, 241, 4787, 2903, 2083, 4363, 1433, 4111, 2003), (137, 1951, 3413, 653, 313, 373, 1777, 1901, 337, 229, 1601, 1699, 3259, 2039, 2857, 1627, 2383, 1291, 877, 103), (563, 2357, 107, 1553, 1399, 911, 3319, 739, 2027, 1709, 3329, 367, 859, 251, 1277, 2719, 587, 787, 2237, 1723), (2377, 1381, 271, 1511, 1789, 1103, 2659, 173, 2207, 593, 1327, 983, 2309, 457, 2053, 359, 569, 2591, 449, 3659), (17, 3547, 2927, 1021, 619, 2539, 2971, 1439, 919, 419, 397, 1979, 1721, 2011, 941, 2293, 421, 101, 881, 1657), (1619, 691, 2731, 1913, 541, 1109, 1367, 1861, 1747, 2579, 1889, 2711, 199, 127, 2437, 317, 823, 1279, 167, 2713), (263, 1609, 2687, 1031, 1669, 1153, 2447, 193, 499, 1949, 467, 431, 97, 1129, 4723, 2551, 1499, 1487, 1483, 1453), (659, 2269, 2087, 79, 181, 929, 577, 571, 1579, 4253, 1871, 2137, 1613, 1867, 613, 479, 1451, 4217, 1009, 379), (2693, 521, 1049, 1759, 5, 2273, 2243, 3067, 3673, 1321, 43, 641, 113, 4027, 59, 1621, 211, 149, 809, 2543), (401, 1831, 857, 2267, 2213, 661, 709, 991, 773, 1303, 353, 1597, 827, 3943, 1051, 73, 821, 3449, 2017, 2683), (463, 829, 1373, 2099, 2657, 727, 1237, 2753, 3019, 2089, 2663, 1493, 1187, 797, 61, 23, 2963, 1069, 617, 701), (1879, 1543, 673, 2557, 1429, 163, 67, 547, 1117, 2593, 1583, 1361, 1201, 769, 2179, 2503, 647, 523, 3919, 1567), (1307, 2063, 953, 439, 607, 2897, 283, 2609, 487, 2531, 1223, 1873, 3163, 383, 233, 2311, 41, 971, 3187, 1259), (1063, 1061, 1693, 3691, 151, 1447, 1283, 409, 863, 761, 1181, 1171, 1229, 223, 1193, 2341, 2417, 2347, 1093, 3203), (1289, 1319, 307, 1091, 4673, 1033, 1409, 311, 1097, 19, 1663, 631, 2393, 1523, 1931, 1471, 1559, 2239, 2143, 719), (3617, 433, 1297, 683, 677, 281, 2677, 1013, 757, 1993, 3347, 1163, 1667, 29, 1571, 1877, 2917, 1231, 1087, 503), (131, 937, 1249, 1753, 947, 197, 1997, 2909, 3557, 1531, 3089, 1213, 2741, 1607, 293, 2113, 907, 277, 1301, 71), (2459, 2029, 601, 1973, 4639, 2521, 239, 751, 1733, 389, 839, 109, 1481, 967, 257, 599, 3593, 2851, 347, 443), (3433, 509, 2153, 887, 1489, 2467, 1151, 3371, 743, 1811, 883, 2251, 1787, 1801, 2141, 37, 491, 349, 89, 977), (4447, 1933, 2381, 1847, 1783, 2647, 269, 3181, 1459, 191, 1019, 3583, 733, 83, 47, 1423, 157, 179, 997, 461)