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BOT maiaRosen

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Maia Rosen

Maia Rosen is a human-aligned chess engine based on the Maia-2 architecture. It was specifically fine-tuned on 10k+ games from IM @EricRosen to capture his signature style and gambits.

This fan project uses the Maia-2 framework to achieve human-AI alignment. Developed by @ashtonanderson, @sidsen and @reidmcy. More info at maiachess.com.

Member since 29 Jan 2026

Active

Time spent playing: 5 days, 3 hours

Chess InsightsAnalytics from maiaRosen's games
Activity1,110 games
1,110
games981
rated318
wins623
losses169
draws
3+1 • Blitz • Rated
BOT C0kval
1538
BOT maiaRosen
1540
Checkmate • Black is victorious
Queen's Gambit Declined
1. c4 e6 2. d4 d5 3. cxd5 exd5 ... 52 moves
2+1 • Bullet • Rated
BOT StrawberryChessDev
1649 −6
BOT maiaRosen
1634 +6
Checkmate • Black is victorious
Sicilian Defense: Accelerated Dragon, Exchange Variation
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 ... 18 moves
10+10 • Rapid • Rated
BOT bot1500elo
1669 −7
BOT maiaRosen
1595 +9
White resigned • Black is victorious
Sicilian Defense: Old Sicilian
1. e4 c5 2. Nf3 Nc6 3. c3 d5 ... 34 moves
2+1 • Bullet • Rated
BOT maiaRosen
1628 +6
BOT StrawberryChessDev
1650 −6
Checkmate • White is victorious
Queen's Pawn Game: London System
1. d4 Nf6 2. Bf4 d5 3. Nf3 c5 ... 73 moves
5+3 • Blitz • Rated
BOT maiaRosen
1544 +6
BOT StrawberryChessDev
1593 −7
Checkmate • White is victorious
Indian Defense: Accelerated London System
1. d4 Nf6 2. Bf4 Nd5 3. Bc1 Nc6 ... 29 moves
5+3 • Blitz • Rated
BOT StrawberryChessDev
1612 −7
BOT maiaRosen
1537 +7
White time out • Black is victorious
Petrov's Defense: Stafford Gambit
1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 ... 11 moves
2+1 • Bullet • Rated
BOT maiaRosen
1627 +6
BOT StrawberryChessDev
1651 −5
Checkmate • White is victorious
Queen's Pawn Game: London System
1. d4 Nf6 2. Bf4 d5 3. Nf3 c5 ... 73 moves
5+10 • Rapid • Rated
BOT UltraBrick
1580
BOT maiaRosen
1602
Checkmate • Black is victorious
Italian Game: Giuoco Pianissimo, Canal Variation
1. e4 e5 2. Nf3 Nf6 3. Nc3 Bc5 ... 32 moves
3+1 • Blitz • Rated
BOT C0kval
1539 −6
BOT maiaRosen
1541 +6
Checkmate • Black is victorious
Queen's Gambit Declined
1. c4 e6 2. d4 d5 3. cxd5 exd5 ... 52 moves
2+1 • Bullet • Rated
BOT maiaRosen
1629 +5
BOT StrawberryChessDev
1633 −6
Checkmate • White is victorious
Queen's Pawn Game: London System
1. d4 Nf6 2. Bf4 d5 3. Nf3 c5 ... 35 moves
1+3 • Blitz • Rated
BOT maiaRosen
1548 +3
BOT joshsbot
1379 −3
Checkmate • White is victorious
Caro-Kann Defense: Masi Variation
1. e4 c6 2. d4 Nf6 3. Nc3 Qa5 ... 39 moves
30+2 • Classical • Casual
BOT joshsbot
1590
BOT maiaRosen
1756
Checkmate • Black is victorious
English Opening: Agincourt Defense
1. c4 e6 2. e3 d5 3. Qf3 Nf6 ... 74 moves