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