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World Sudoku & Puzzle Championship 2026

Jaehyun Koo

Player Profile : koosaga
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Real name Jaehyun Koo
Puzzle Blog
Country South Korea
Date registered2024-01-26 12:02 PM
Last logon2025-03-23 11:57 AM
Total posts0 
Rank
LMI RatingsCurrent RankCurrent RatingsBest RankBest RatingsRatings History
LMI Puzzle Ratings 497 128.4165 410 215.1083 History

Puzzle Testkoosaga's Rankkoosaga's ScoreTest Max ScorePSRSNSW
2025R1 (Classics) 275 28.4 134.883 302 303 302 0.6
2024R2 (Loops & Numbers) 248 19 130.583 229 252 235
Sudoku Testkoosaga's Rankkoosaga's ScoreTest Max ScorePSRSNSW
2024R2 (Odd Even & Hybrids) 325 13 139.333 159 192 167
2024R1 (Standard & Irregular) 379 13 141.75 210 314 236

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