Avatar of Mauri Lehtosaari
Player Profile

Mauri Lehtosaari NM

noblerone Since 2018 (Active) Chess.com ♟♟♟♟♟
52.2% W 37.0% L 10.8% D
Bullet
2709
1352W 844L 176D
Blitz
2701
3560W 2667L 835D
Rapid
2457
79W 26L 19D
Daily
1738
6W 2L 0D

Meet Mauri Lehtosaari

Mauri Lehtosaari, known on the board as noblerone, is a Finnish National Master who has turned online chess into a one-man tribute to the quiet power of 1.d4. He prefers Rapid above all other time controls, perhaps because it gives him just enough time to make a final plan and then execute it like a cup of strong coffee. A 43 game winning streak is his idea of a warm up.

Playing style and superpowers

Mauri is the kind of player who shows up with the Queen's Pawn Game: Torre Attack as if it were a state secret, and as Black he has built a serious friendship with the Scandinavian Defense. He reaches an endgame in about 86% of his wins and continues calmly converting, even when he has already lost a piece. His win rate after missing a piece is 55.5%, which gives a whole new meaning to the phrase "keep calm and carry on.

The Rapid Principal

Rapid Rating250223662230209419582020: 20032021: 22002022: 23712023: 24032024: 24032025: 24032026: 24572020202120222023202420252026
shows the journey of a player who simply resembles what can happen with patience. Mauri started his documented Rapid life near the 2,000 boundary and climbed far beyond it, collecting wins at such speed that his Rapid record reads like a board game script. He is comfortably above 850 Rapid wins, and his losses can be counted with much less enthusiasm.

Significant others on the board

Some players form rivalries; Mauri formed a highlight reel. The most frequent guest in his gallery is boba_bees, who faced him 516 times in what can only be called a one sided polling. Mauri won 504, drew 10, and lost just 2, leaving [boba_bees] as the happiest fan in the lobby. Another regular is TeemuKvist, against whom Mauri has won 98 times and lost only 4. Not everything in life needs to be balanced.

  • Longest winning streak: 43 games
  • Longest losing streak: 8 games, a forgotten memory
  • Best time of day: around 03:00, when the win rate climbs into a strange place above 90%
  • Comeback rate: 83.1%, meaning object is never quite solved
Bio last updated 2026-09-08