Parity checks
X-checks 372 (max weight 4) · Z-checks 372 (max weight 4)
H_X (372 checks, sparse supports)
[0, 1]
[2, 3]
[5, 6]
[7, 8]
[10, 11]
[12, 13]
[15, 16]
[17, 18]
[20, 21]
[22, 23]
[25, 26]
[27, 28]
[30, 31]
[32, 33]
[35, 36]
[37, 38]
[40, 41]
[42, 43]
[45, 46]
[47, 48]
[50, 51]
[52, 53]
[55, 56]
[57, 58]
[60, 61]
[62, 63]
[65, 66]
[67, 68]
[70, 71]
[72, 73]
[75, 76]
[77, 78]
[80, 81]
[82, 83]
[85, 86]
[87, 88]
[90, 91]
[92, 93]
[95, 96]
[97, 98]
[100, 101]
[102, 103]
[1, 2, 106, 107]
[3, 4, 108, 109]
[6, 7, 111, 112]
[8, 9, 113, 114]
[11, 12, 116, 117]
[13, 14, 118, 119]
[16, 17, 121, 122]
[18, 19, 123, 124]
[21, 22, 126, 127]
[23, 24, 128, 129]
[26, 27, 131, 132]
[28, 29, 133, 134]
[31, 32, 136, 137]
[33, 34, 138, 139]
[36, 37, 141, 142]
[38, 39, 143, 144]
[41, 42, 146, 147]
[43, 44, 148, 149]
[46, 47, 151, 152]
[48, 49, 153, 154]
[51, 52, 156, 157]
[53, 54, 158, 159]
[56, 57, 161, 162]
[58, 59, 163, 164]
[61, 62, 166, 167]
[63, 64, 168, 169]
[66, 67, 171, 172]
[68, 69, 173, 174]
[71, 72, 176, 177]
[73, 74, 178, 179]
[76, 77, 181, 182]
[78, 79, 183, 184]
[81, 82, 186, 187]
[83, 84, 188, 189]
[86, 87, 191, 192]
[88, 89, 193, 194]
[91, 92, 196, 197]
[93, 94, 198, 199]
[96, 97, 201, 202]
[98, 99, 203, 204]
[101, 102, 206, 207]
[103, 104, 208, 209]
[105, 106, 210, 211]
[107, 108, 212, 213]
[110, 111, 216, 217]
[112, 113, 218, 219]
[115, 116, 222, 223]
[117, 118, 224, 225]
[120, 121, 228, 229]
[122, 123, 230, 231]
[125, 126, 234, 235]
[127, 128, 236, 237]
[130, 131, 240, 241]
[132, 133, 242, 243]
[135, 136, 246, 247]
[137, 138, 248, 249]
[140, 141, 252, 253]
[142, 143, 254, 255]
[145, 146, 258, 259]
[147, 148, 260, 261]
[150, 151, 264, 265]
[152, 153, 266, 267]
[155, 156, 270, 271]
[157, 158, 272, 273]
[160, 161, 276, 277]
[162, 163, 278, 279]
[165, 166, 282, 283]
[167, 168, 284, 285]
[170, 171, 288, 289]
[172, 173, 290, 291]
[175, 176, 294, 295]
[177, 178, 296, 297]
[180, 181, 300, 301]
[182, 183, 302, 303]
[185, 186, 306, 307]
[187, 188, 308, 309]
[190, 191, 312, 313]
[192, 193, 314, 315]
[195, 196, 318, 319]
[197, 198, 320, 321]
[200, 201, 324, 325]
[202, 203, 326, 327]
[205, 206, 330, 331]
[207, 208, 332, 333]
[211, 212, 336, 337]
[213, 214, 338, 339]
[215, 216, 340, 341]
[217, 218, 342, 343]
[219, 220, 344, 345]
[221, 222, 346, 347]
[223, 224, 348, 349]
[225, 226, 350, 351]
[227, 228, 352, 353]
[229, 230, 354, 355]
[231, 232, 356, 357]
[233, 234, 358, 359]
[235, 236, 360, 361]
[237, 238, 362, 363]
[239, 240, 364, 365]
[241, 242, 366, 367]
[243, 244, 368, 369]
[245, 246, 370, 371]
[247, 248, 372, 373]
[249, 250, 374, 375]
[251, 252, 376, 377]
[253, 254, 378, 379]
[255, 256, 380, 381]
[257, 258, 382, 383]
[259, 260, 384, 385]
[261, 262, 386, 387]
[263, 264, 388, 389]
[265, 266, 390, 391]
[267, 268, 392, 393]
[269, 270, 394, 395]
[271, 272, 396, 397]
[273, 274, 398, 399]
[275, 276, 400, 401]
[277, 278, 402, 403]
[279, 280, 404, 405]
[281, 282, 406, 407]
[283, 284, 408, 409]
[285, 286, 410, 411]
[287, 288, 412, 413]
[289, 290, 414, 415]
[291, 292, 416, 417]
[293, 294, 418, 419]
[295, 296, 420, 421]
[297, 298, 422, 423]
[299, 300, 424, 425]
[301, 302, 426, 427]
[303, 304, 428, 429]
[305, 306, 430, 431]
[307, 308, 432, 433]
[309, 310, 434, 435]
[311, 312, 436, 437]
[313, 314, 438, 439]
[315, 316, 440, 441]
[317, 318, 442, 443]
[319, 320, 444, 445]
[321, 322, 446, 447]
[323, 324, 448, 449]
[325, 326, 450, 451]
[327, 328, 452, 453]
[329, 330, 454, 455]
[331, 332, 456, 457]
[333, 334, 458, 459]
[335, 336, 460, 461]
[337, 338, 462, 463]
[339, 340, 464, 465]
[341, 342, 466, 467]
[343, 344, 468, 469]
[345, 346, 470, 471]
[347, 348, 472, 473]
[349, 350, 474, 475]
[351, 352, 476, 477]
[353, 354, 478, 479]
[355, 356, 480, 481]
[357, 358, 482, 483]
[359, 360, 484, 485]
[361, 362, 486, 487]
[363, 364, 488, 489]
[365, 366, 490, 491]
[367, 368, 492, 493]
[369, 370, 494, 495]
[371, 372, 496, 497]
[373, 374, 498, 499]
[375, 376, 500, 501]
[377, 378, 502, 503]
[379, 380, 504, 505]
[381, 382, 506, 507]
[383, 384, 508, 509]
[385, 386, 510, 511]
[387, 388, 512, 513]
[389, 390, 514, 515]
[391, 392, 516, 517]
[393, 394, 518, 519]
[395, 396, 520, 521]
[397, 398, 522, 523]
[399, 400, 524, 525]
[401, 402, 526, 527]
[403, 404, 528, 529]
[405, 406, 530, 531]
[407, 408, 532, 533]
[409, 410, 534, 535]
[411, 412, 536, 537]
[413, 414, 538, 539]
[415, 416, 540, 541]
[417, 418, 542, 543]
[419, 420, 544, 545]
[421, 422, 546, 547]
[423, 424, 548, 549]
[425, 426, 550, 551]
[427, 428, 552, 553]
[429, 430, 554, 555]
[431, 432, 556, 557]
[433, 434, 558, 559]
[435, 436, 560, 561]
[437, 438, 562, 563]
[439, 440, 564, 565]
[441, 442, 566, 567]
[443, 444, 568, 569]
[445, 446, 570, 571]
[447, 448, 572, 573]
[449, 450, 574, 575]
[451, 452, 576, 577]
[453, 454, 578, 579]
[455, 456, 580, 581]
[457, 458, 582, 583]
[461, 462]
[463, 464, 585, 586]
[465, 466, 587, 588]
[467, 468, 589]
[469, 470, 590, 591]
[471, 472, 592, 593]
[473, 474, 594]
[475, 476, 595, 596]
[477, 478, 597, 598]
[479, 480, 599]
[481, 482, 600, 601]
[483, 484, 602, 603]
[485, 486, 604]
[487, 488, 605, 606]
[489, 490, 607, 608]
[491, 492, 609]
[493, 494, 610, 611]
[495, 496, 612, 613]
[497, 498, 614]
[499, 500, 615, 616]
[501, 502, 617, 618]
[503, 504, 619]
[505, 506, 620, 621]
[507, 508, 622, 623]
[509, 510, 624]
[511, 512, 625, 626]
[513, 514, 627, 628]
[515, 516, 629]
[517, 518, 630, 631]
[519, 520, 632, 633]
[521, 522, 634]
[523, 524, 635, 636]
[525, 526, 637, 638]
[527, 528, 639]
[529, 530, 640, 641]
[531, 532, 642, 643]
[533, 534, 644]
[535, 536, 645, 646]
[537, 538, 647, 648]
[539, 540, 649]
[541, 542, 650, 651]
[543, 544, 652, 653]
[545, 546, 654]
[547, 548, 655, 656]
[549, 550, 657, 658]
[551, 552, 659]
[553, 554, 660, 661]
[555, 556, 662, 663]
[557, 558, 664]
[559, 560, 665, 666]
[561, 562, 667, 668]
[563, 564, 669]
[565, 566, 670, 671]
[567, 568, 672, 673]
[569, 570, 674]
[571, 572, 675, 676]
[573, 574, 677, 678]
[575, 576, 679]
[577, 578, 680, 681]
[579, 580, 682, 683]
[581, 582, 684]
[583, 584]
[585, 685]
[586, 587, 686, 687]
[588, 589, 688, 689]
[590, 690]
[591, 592, 691, 692]
[593, 594, 693, 694]
[595, 695]
[596, 597, 696, 697]
[598, 599, 698, 699]
[600, 700]
[601, 602, 701, 702]
[603, 604, 703, 704]
[605, 705]
[606, 607, 706, 707]
[608, 609, 708, 709]
[610, 710]
[611, 612, 711, 712]
[613, 614, 713, 714]
[615, 715]
[616, 617, 716, 717]
[618, 619, 718, 719]
[620, 720]
[621, 622, 721, 722]
[623, 624, 723, 724]
[625, 725]
[626, 627, 726, 727]
[628, 629, 728, 729]
[630, 730]
[631, 632, 731, 732]
[633, 634, 733, 734]
[635, 735]
[636, 637, 736, 737]
[638, 639, 738, 739]
[640, 740]
[641, 642, 741, 742]
[643, 644, 743, 744]
[645, 745]
[646, 647, 746, 747]
[648, 649, 748, 749]
[650, 750]
[651, 652, 751, 752]
[653, 654, 753, 754]
[655, 755]
[656, 657, 756, 757]
[658, 659, 758, 759]
[660, 760]
[661, 662, 761, 762]
[663, 664, 763, 764]
[665, 765]
[666, 667, 766, 767]
[668, 669, 768, 769]
[670, 770]
[671, 672, 771, 772]
[673, 674, 773, 774]
[675, 775]
[676, 677, 776, 777]
[678, 679, 778, 779]
[680, 780]
[681, 682, 781, 782]
[683, 684, 783, 784]
H_Z (372 checks, sparse supports)
[0, 1, 105, 106]
[2, 3, 107, 108]
[4, 109]
[5, 6, 110, 111]
[7, 8, 112, 113]
[9, 114]
[10, 11, 115, 116]
[12, 13, 117, 118]
[14, 119]
[15, 16, 120, 121]
[17, 18, 122, 123]
[19, 124]
[20, 21, 125, 126]
[22, 23, 127, 128]
[24, 129]
[25, 26, 130, 131]
[27, 28, 132, 133]
[29, 134]
[30, 31, 135, 136]
[32, 33, 137, 138]
[34, 139]
[35, 36, 140, 141]
[37, 38, 142, 143]
[39, 144]
[40, 41, 145, 146]
[42, 43, 147, 148]
[44, 149]
[45, 46, 150, 151]
[47, 48, 152, 153]
[49, 154]
[50, 51, 155, 156]
[52, 53, 157, 158]
[54, 159]
[55, 56, 160, 161]
[57, 58, 162, 163]
[59, 164]
[60, 61, 165, 166]
[62, 63, 167, 168]
[64, 169]
[65, 66, 170, 171]
[67, 68, 172, 173]
[69, 174]
[70, 71, 175, 176]
[72, 73, 177, 178]
[74, 179]
[75, 76, 180, 181]
[77, 78, 182, 183]
[79, 184]
[80, 81, 185, 186]
[82, 83, 187, 188]
[84, 189]
[85, 86, 190, 191]
[87, 88, 192, 193]
[89, 194]
[90, 91, 195, 196]
[92, 93, 197, 198]
[94, 199]
[95, 96, 200, 201]
[97, 98, 202, 203]
[99, 204]
[100, 101, 205, 206]
[102, 103, 207, 208]
[104, 209]
[105, 210]
[106, 107, 211, 212]
[108, 109, 213, 214]
[110, 215, 216]
[111, 112, 217, 218]
[113, 114, 219, 220]
[115, 221, 222]
[116, 117, 223, 224]
[118, 119, 225, 226]
[120, 227, 228]
[121, 122, 229, 230]
[123, 124, 231, 232]
[125, 233, 234]
[126, 127, 235, 236]
[128, 129, 237, 238]
[130, 239, 240]
[131, 132, 241, 242]
[133, 134, 243, 244]
[135, 245, 246]
[136, 137, 247, 248]
[138, 139, 249, 250]
[140, 251, 252]
[141, 142, 253, 254]
[143, 144, 255, 256]
[145, 257, 258]
[146, 147, 259, 260]
[148, 149, 261, 262]
[150, 263, 264]
[151, 152, 265, 266]
[153, 154, 267, 268]
[155, 269, 270]
[156, 157, 271, 272]
[158, 159, 273, 274]
[160, 275, 276]
[161, 162, 277, 278]
[163, 164, 279, 280]
[165, 281, 282]
[166, 167, 283, 284]
[168, 169, 285, 286]
[170, 287, 288]
[171, 172, 289, 290]
[173, 174, 291, 292]
[175, 293, 294]
[176, 177, 295, 296]
[178, 179, 297, 298]
[180, 299, 300]
[181, 182, 301, 302]
[183, 184, 303, 304]
[185, 305, 306]
[186, 187, 307, 308]
[188, 189, 309, 310]
[190, 311, 312]
[191, 192, 313, 314]
[193, 194, 315, 316]
[195, 317, 318]
[196, 197, 319, 320]
[198, 199, 321, 322]
[200, 323, 324]
[201, 202, 325, 326]
[203, 204, 327, 328]
[205, 329, 330]
[206, 207, 331, 332]
[208, 209, 333, 334]
[210, 211, 335, 336]
[212, 213, 337, 338]
[214, 215, 339, 340]
[216, 217, 341, 342]
[218, 219, 343, 344]
[220, 221, 345, 346]
[222, 223, 347, 348]
[224, 225, 349, 350]
[226, 227, 351, 352]
[228, 229, 353, 354]
[230, 231, 355, 356]
[232, 233, 357, 358]
[234, 235, 359, 360]
[236, 237, 361, 362]
[238, 239, 363, 364]
[240, 241, 365, 366]
[242, 243, 367, 368]
[244, 245, 369, 370]
[246, 247, 371, 372]
[248, 249, 373, 374]
[250, 251, 375, 376]
[252, 253, 377, 378]
[254, 255, 379, 380]
[256, 257, 381, 382]
[258, 259, 383, 384]
[260, 261, 385, 386]
[262, 263, 387, 388]
[264, 265, 389, 390]
[266, 267, 391, 392]
[268, 269, 393, 394]
[270, 271, 395, 396]
[272, 273, 397, 398]
[274, 275, 399, 400]
[276, 277, 401, 402]
[278, 279, 403, 404]
[280, 281, 405, 406]
[282, 283, 407, 408]
[284, 285, 409, 410]
[286, 287, 411, 412]
[288, 289, 413, 414]
[290, 291, 415, 416]
[292, 293, 417, 418]
[294, 295, 419, 420]
[296, 297, 421, 422]
[298, 299, 423, 424]
[300, 301, 425, 426]
[302, 303, 427, 428]
[304, 305, 429, 430]
[306, 307, 431, 432]
[308, 309, 433, 434]
[310, 311, 435, 436]
[312, 313, 437, 438]
[314, 315, 439, 440]
[316, 317, 441, 442]
[318, 319, 443, 444]
[320, 321, 445, 446]
[322, 323, 447, 448]
[324, 325, 449, 450]
[326, 327, 451, 452]
[328, 329, 453, 454]
[330, 331, 455, 456]
[332, 333, 457, 458]
[334, 459]
[335, 460]
[336, 337, 461, 462]
[338, 339, 463, 464]
[340, 341, 465, 466]
[342, 343, 467, 468]
[344, 345, 469, 470]
[346, 347, 471, 472]
[348, 349, 473, 474]
[350, 351, 475, 476]
[352, 353, 477, 478]
[354, 355, 479, 480]
[356, 357, 481, 482]
[358, 359, 483, 484]
[360, 361, 485, 486]
[362, 363, 487, 488]
[364, 365, 489, 490]
[366, 367, 491, 492]
[368, 369, 493, 494]
[370, 371, 495, 496]
[372, 373, 497, 498]
[374, 375, 499, 500]
[376, 377, 501, 502]
[378, 379, 503, 504]
[380, 381, 505, 506]
[382, 383, 507, 508]
[384, 385, 509, 510]
[386, 387, 511, 512]
[388, 389, 513, 514]
[390, 391, 515, 516]
[392, 393, 517, 518]
[394, 395, 519, 520]
[396, 397, 521, 522]
[398, 399, 523, 524]
[400, 401, 525, 526]
[402, 403, 527, 528]
[404, 405, 529, 530]
[406, 407, 531, 532]
[408, 409, 533, 534]
[410, 411, 535, 536]
[412, 413, 537, 538]
[414, 415, 539, 540]
[416, 417, 541, 542]
[418, 419, 543, 544]
[420, 421, 545, 546]
[422, 423, 547, 548]
[424, 425, 549, 550]
[426, 427, 551, 552]
[428, 429, 553, 554]
[430, 431, 555, 556]
[432, 433, 557, 558]
[434, 435, 559, 560]
[436, 437, 561, 562]
[438, 439, 563, 564]
[440, 441, 565, 566]
[442, 443, 567, 568]
[444, 445, 569, 570]
[446, 447, 571, 572]
[448, 449, 573, 574]
[450, 451, 575, 576]
[452, 453, 577, 578]
[454, 455, 579, 580]
[456, 457, 581, 582]
[458, 459, 583, 584]
[464, 465, 586, 587]
[466, 467, 588, 589]
[470, 471, 591, 592]
[472, 473, 593, 594]
[476, 477, 596, 597]
[478, 479, 598, 599]
[482, 483, 601, 602]
[484, 485, 603, 604]
[488, 489, 606, 607]
[490, 491, 608, 609]
[494, 495, 611, 612]
[496, 497, 613, 614]
[500, 501, 616, 617]
[502, 503, 618, 619]
[506, 507, 621, 622]
[508, 509, 623, 624]
[512, 513, 626, 627]
[514, 515, 628, 629]
[518, 519, 631, 632]
[520, 521, 633, 634]
[524, 525, 636, 637]
[526, 527, 638, 639]
[530, 531, 641, 642]
[532, 533, 643, 644]
[536, 537, 646, 647]
[538, 539, 648, 649]
[542, 543, 651, 652]
[544, 545, 653, 654]
[548, 549, 656, 657]
[550, 551, 658, 659]
[554, 555, 661, 662]
[556, 557, 663, 664]
[560, 561, 666, 667]
[562, 563, 668, 669]
[566, 567, 671, 672]
[568, 569, 673, 674]
[572, 573, 676, 677]
[574, 575, 678, 679]
[578, 579, 681, 682]
[580, 581, 683, 684]
[585, 586, 685, 686]
[587, 588, 687, 688]
[590, 591, 690, 691]
[592, 593, 692, 693]
[595, 596, 695, 696]
[597, 598, 697, 698]
[600, 601, 700, 701]
[602, 603, 702, 703]
[605, 606, 705, 706]
[607, 608, 707, 708]
[610, 611, 710, 711]
[612, 613, 712, 713]
[615, 616, 715, 716]
[617, 618, 717, 718]
[620, 621, 720, 721]
[622, 623, 722, 723]
[625, 626, 725, 726]
[627, 628, 727, 728]
[630, 631, 730, 731]
[632, 633, 732, 733]
[635, 636, 735, 736]
[637, 638, 737, 738]
[640, 641, 740, 741]
[642, 643, 742, 743]
[645, 646, 745, 746]
[647, 648, 747, 748]
[650, 651, 750, 751]
[652, 653, 752, 753]
[655, 656, 755, 756]
[657, 658, 757, 758]
[660, 661, 760, 761]
[662, 663, 762, 763]
[665, 666, 765, 766]
[667, 668, 767, 768]
[670, 671, 770, 771]
[672, 673, 772, 773]
[675, 676, 775, 776]
[677, 678, 777, 778]
[680, 681, 780, 781]
[682, 683, 782, 783]
[686, 687]
[688, 689]
[691, 692]
[693, 694]
[696, 697]
[698, 699]
[701, 702]
[703, 704]
[706, 707]
[708, 709]
[711, 712]
[713, 714]
[716, 717]
[718, 719]
[721, 722]
[723, 724]
[726, 727]
[728, 729]
[731, 732]
[733, 734]
[736, 737]
[738, 739]
[741, 742]
[743, 744]
[746, 747]
[748, 749]
[751, 752]
[753, 754]
[756, 757]
[758, 759]
[761, 762]
[763, 764]
[766, 767]
[768, 769]
[771, 772]
[773, 774]
[776, 777]
[778, 779]
[781, 782]
[783, 784]