Sudoku Mahabharat & Puzzle Ramayan Finals
LMI Launches Puzzle Expo!

David Cohen

Player Profile : kublai
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Real name David Cohen
Puzzle Blog
Country United States
Date registered2011-08-31 9:14 PM
Last logon2024-06-21 2:43 AM
Total posts0 
Rank
LMI RatingsCurrent RankCurrent RatingsBest RankBest RatingsRatings History
LMI Puzzle Ratings 216 422.0397 120 491.0731 History
LMI Sudoku Ratings 842 37.57732 210 460.1972 History

Daily Contestskublai's Rankkublai's ScoreTest Max Score
Nurimisaki Nomad 189 1163.87 3147
Yajilin Yacht 240 572.411 3148
Kakuro Kart 181 1149.83 3058
Rassi Silai Race 229 1033.06 3085
Tapa Train 220 467.607 3151
Classic Tapa Contest - 2016 105 237 606.4
Classic Tapa Contest - 2013 96 168.6 407.8
Classic Tapa Contest - 2012 118 185.205 501.944
Puzzle Testkublai's Rankkublai's ScoreTest Max ScorePSRSNSW
PANFOPCWHTTAPA 3 141 115.783 149.6 496 481 492 0.7
2022R6 (MII & Object Placement) 105 41 125.05 502 510 504 0.6
2023R1 (Classics) 171 48 131.483 506 513 508 0.7
PANFOPCWHTTAPA 102 118.167 147.133
Shading (PR 2021) 74 101.183 168.15 623 612 620
OP (PR 2021) 91 86 157.5 591 617 598
Regions (PR 2021) 174 31.4 149.3 321 250 304
Number Placement (PR 2021) 155 55 155.017 423 409 419
Classics (PR 2021) 189 44.9 160.633 364 285 344
Divide and Conquer 141 0 1375.5
MPC2020 75 790 0
PZ 131 0 1061.67
Casual and Word (PR 2020) 198 0 132.783
Number and Object Placement (PR 2020) 124 44.1 134.9 487 483 486
Classics (PR 2020) 180 55 149 455 412 444
PuzzlersClub 2 102 0 1162
Number & Object Placement (PR 2019) 171 0 137.85
MII & Regions (PR 2019) 98 37 139.15 353 336 349
Casual & Word (PR 2019) 147 0 122.467
Connected Puzzles (PR 2019) 113 50.5 149.167 395 321 376
Classics (PR 2019) 106 61.1 160.05 404 386 400
Kaleidoscope 2018 61 0 330.7
Loops & Shading (PR 2018) 137 0 156.933
Casual & Word (PR 2018) 55 44 93.9 554 630 573
Evergreens (PR 2018) 87 52 155.3 428 438 431
April Contest 2018 46 14 96
MII & Regions (PR 2018) 162 0 144.2
15th Anniversary 123 0 881.5
Classics (PR 2018) 120 73.8 168.3 412 360 399
Number Placement & Evergreens (PR 2016/17) 151 0 128.2
Object Placement & Pentomino (PR 2016/17) 84 41 124.917 474 453 469
Shading and Loops (PR 2016/17) 108 54 169.817 378 384 379
Snowmen 106 0 596.667
Classics & Regions (PR 2016/17) 98 70 156.1 542 562 547
Moscow Puzzle Cup 2016 50 436 1314.9
Kaleidoscope 44 69 318.298 365 391 372
Hex Slitherlink 48 100 100
Puzzle Marathon 2016 131 530.422 976.528 504 517 507
Object Placement (PR 2015/16) 125 29 137.65 319 242 300
Loop pooL 79 100 100
NEW, HUGE, AND CHALLENGING 108 0 100
Loops (PR 2015/16) 224 0 165.6
Toketa? Selection 88 197.5 1103.67 335 269 318
Shading (PR 2015/16) 86 84 159.05 564 589 570
WCPN 112 255 1279.77 372 339 364
forsmarts 13th Anniversary Contest 127 0 811.5
LMI Screen Test #5 114 1187.3 2175.2 558 572 562
Regions (PR 2015/16) 136 60 157.683 431 400 423
Evergreens (PR 2015/16) 145 28 130.2 365 318 353
Classics (PR 2015/16) 127 58.3 157.633 484 479 483
Puzzle Marathon 2015 119 433.875 757.097 530 593 546
Pento Parade 85 332.5 1592.22 420 354 403
World Practice Championship - Day 2 64 190 1719
World Practice Championship - Day 1 92 475 2014
April Contest 2014 68 27 99
FAST 119 5310.31 38510.9
LMI Puzzle Marathon 2014 173 377.684 773.675 467 447 462
Kakuro 137 154 1353 180 192 183
forsmarts 11th Anniversary Contest 112 85 1000
Japanese Puzzle Land 2 95 310 1103.4 503 518 507
DWBH 130 184 946.667 334 330 333
WPC Practice Test 85 160 972.95
Classics : Hexed & Remixed 73 240 885 375 363 372
WPMM 128 401.619 929.468 440 405 431
DTGT 87 272 1208.8 424 406 419
Deception 61 270 1123.24 409 433 415
April Contest 2013 64 0 92
Puzzle Marathon 2013 112 537.927 970.828 543 636 566
Best of LMI Puzzle Tests 89 84 487 362 320 352
8th Open Moscow Puzzle Cup 2012 84 86 439
forsmarts 10th Anniversary Contest 129 0 935
Word Show 75 29.6 163 322 291 314
Fillomino-Fillia 2 133 26 185.727
123 GO 134 38 203.926 345 305 335
akil oyunlari magazine competition 94 381 1455.3 346 298 334
Logirace 140 81 1665.26 122 80 111
Seven Samurais 122 88.5 815.63 184 227 195
Puzzle Marathon 2012 183 652.967 1310.25 345 305 335
Forsmarts 3² Anniversary 101 198.6 835
Screen Test #2 111 832 1428 587 666 607
LMI Sprint Test 262 0 348
Sudoku Testkublai's Rankkublai's ScoreTest Max ScorePSRSNSW
2022R1 (Standard & Neighbours) 363 8 138.383 98 61 88 0.6
Irregular and Twisted Classics (SM 2021) 260 25 150.4 219 168 207
Math (SM 2021) 128 55 146.983 545 591 556
Standard (SM 2021) 318 26 153.25 203 123 183
Twisted Classics and Hybrids (SM2020) 292 0 135.583
Mean Minis 234 0 135.9
Substitution and Neighbours (SM 2020) 228 28 128.417 359 336 353
Quinze 168 0 130.73
Converse & Twisted Classics (SM 19) 134 41 147 423 399 417
Irregular & Hybrids (SM 19) 236 0 152.317
Math (SM 19) 158 30 129.033 405 369 396
Get Overlapped! 168 0 232.067
Substitution & Odd Even (SM 19) 169 32 137.517 375 375 375
Deja Vu 130 0 146.817
Enthralling Sudoku 132 0 150.233
Irregular & Hybrids (SM 18) 202 0 126.7
Math (SM 18) 207 24 142.1 273 139 240
Odd Even & Substitution (SM 18) 259 0 141.1
Outside & Neighbours (SM 18) 197 23 131.3 281 220 266
"What Is It?" - Sudoku Contest 45 115 420
September Sudoku Contest 2017 69 63 596.633
Outside & Math (SM 16/17) 176 42 139.05 534 479 520
Odd Even & Twisted Classics (SM 16/17) 161 44 141.283 524 552 531
Standard & Neighbours (SM 16/17) 145 49 151.533 471 472 471
Wacky Slovak Classics 124 45 259.25 281 152 249
September Sudoku Contest 2016 46 150 502.8
Irregular Variations (SM 15/16) 270 0 145.15
Converse Variations (SM 15/16) 239 21 142.083 260 195 244
Twisted Classics (SM 15/16) 166 71 155.083 487 486 487
Outside Variations (SM 15/16) 152 38 135.533 487 481 486
Math Variations (SM 15/16) 177 36 136.083 423 434 425
X-Killer 121 0 2400
Odd Even Variations (SM 15/16) 141 62 156.233 515 529 519
September Sudoku Contest 2015 48 122 679.167
Standard Variations (SM 15/16) 234 31 156.767 277 268 275
Unlucky 13 163 858 1882.62 367 294 348
Converse Variations (SM 14/15) 146 54 156.467 505 510 506
Neighbours Variations (SM 14/15) 177 48.8 153.933 386 403 390
Outside Variations (SM 14/15) 176 37 151.45 440 416 434
Sudoku Surprise 110 180 1810.33 237 237 237
Irregular Variations (SM 14/15) 176 44 150.05 427 422 426
Sudoku Day 138 6 111.884 129 146 133
Special 8 84 330 1004.8 500 506 502
Best of LMI Sudoku Tests 117 234 1298 387 419 395
LMI Screen Test #4 126 848.587 2982.38 426 441 430
Match (WSC Practice) 91 140 907.78
Sudoku Grand Prix - Italian Round 378 0 558.133
Sudoku Grand Prix - Turkish Round 314 18 656 64 31 56
Sudoku Grand Prix - Serbian Round 213 250 915.4 526 513 523
V2V 174 186 1092.9 280 225 266
Sudoku Grand Prix - Indian Round 374 88 559 364 385 369
LMI Screen Test #3 104 1038.87 2849.14 565 640 584
Fugitive Warrant 120 21 182 178 144 169
Killer Shootout 104 60 373.46 242 264 248
Classics vs. Innovatives 152 41 416.7 171 163 169
Copy Paste 115 375 1446.95 438 433 437
SudoClones 122 179 1239.9 275 292 280
Sudoku 8X8 154 123 871.8 204 222 208
Killing Time 110 135 985.458 211 176 202
Diagonal Vision 146 45 860 83 53 75
Crazy Arrows 124 110 925 167 76 144

PS = Prorated Score (Score based on players's score, median score and top score in the test)
RS = Rank Score (Score based on player's rank in the test)
NS = Normalized Score (.75 * PS + .25 * RS)
W = Weight of the test
Click here for detailed logic of LMI Player Rating System v2.0
Beginners' Sudokukublai's Rankkublai's ScoreTest Max Score
July 2014 272 22.5 122.38
May 2014 172 40.5 117.3
February 2014 186 49 124.78
August 2013 176 48.5 122.17
June 2013 147 42 115.72
March 2013 123 52.6 118
February 2013 217 34.5 122.93
January 2013 155 49.5 123.42
December 2012 145 48 125.02
November 2012 124 37 110.65
October 2012 143 42 118.38
September 2012 140 49.78 126
August 2012 146 50.33 126.57
Beginners' Puzzlekublai's Rankkublai's ScoreTest Max Score
Yin-Yang 67 91.6667 136.333
Minesweeper 130 67 135.967
Tetrominoes 155 28 128
Spiral Galaxies 69 66 137.067
LITS 86 67 137.333
Skyscrapers 89 80.2333 135.167
Slitherlink 93 93.0333 142.367
Star Battle 154 54.5 139.367
Masyu 178 200 549.92