World Sudoku & Puzzle Championship 2026
ISC & SM and IPC & PR 2026

Boyan Dong

Player Profile : boyan
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Real name Boyan Dong
Puzzle Blog
Country China
Date registered2024-12-26 12:23 PM
Last logon2026-08-08 10:24 PM
Total posts0 
Rank
LMI RatingsCurrent RankCurrent RatingsBest RankBest RatingsRatings History
LMI Puzzle Ratings 127 601.7065 127 601.7065 History
LMI Sudoku Ratings 89 688.2224 89 688.2224 History

Puzzle Testboyan's Rankboyan's ScoreTest Max ScorePSRSNSW
26-Letter Puzzle Contest 44 314 0
France Open 2026 - Puzzle R2 41 100 0
France Open 2026 - Puzzle R1 21 585 0
2026R5 (Word & Casual) 109 42 0
2026R4 (Shading & Loops) 66 60.7 132.8 629 747 658 1
2026R3 (OP & Regions) 124 50.6 125.3 535 575 545 1
2026R2 (MII & Number Placement) 92 74.6 132.8 635 685 648 1
2026R1 (Classics) 104 64.9 132.033 623 739 652 0.8
2025R5 (Word & Casual) 87 67 119.8 623 710 645 0.8
2025R4 (Shading & Regions) 116 78.8 137.1 580 604 586 0.7
2025R3 (Numbers & MII) 154 39.8 123.417 485 483 485 0.7
2025R2 (Loop & OP) 195 32.4 124.25 427 410 423 0.6
2025R1 (Classics) 183 49 134.883 511 530 516 0.6
Sudoku Testboyan's Rankboyan's ScoreTest Max ScorePSRSNSW
France Open 2026 - Sudoku R2 30 437 0
France Open 2026 - Sudoku R1 112 0 0
2026R4 (Irregular & Converse) 41 86.4 140.35 707 868 747 1
2026R3 (OE & Hybrids) 54 80 140.35 680 852 723 1
2026R2 (Math & Outside) 46 88 141.283 734 901 776 1
2026R1 (Standard & Neighbours) 58 81.2 138.433 728 877 765 0.8
SSC 2025 13 330 0
2025R4 (Outside & Hybrids) 147 44.5 140.533 521 558 530 0.8
2025R3 (Odd Even & Irregular) 175 65.2 155.533 522 533 525 0.7
2025R2 (Math & Neighbours) 76 87 149.7 686 817 718 0.7
2025R1 (Standard & Converse) 174 58.7 154.75 574 657 595 0.6

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