Player profile

Masis Chaves, Sebastian

Standard: 0 Rapid: 1593 Blitz: 1696 (last updated 2026-10-02)

FIDE ID: 6559115 (view FIDE profile)

Federation: CRC Sex: M Birth Year: 2011 Age: 15

Title: — Women's title: — Other title: — FOA title: —

Games: 6 Wins: 1 (17%) Draws: 2 (33%) Losses: 2 (33%) Other: 1

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Dossier

5 of 6 games analyzed.

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Openings

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As White 3 games 0W 2D 0L

Sicilian Defense 2 games 0W 1D 0L

O'Kelly Variation 1 game 0W 1D 0L

Normal System 1 game 0W 1D 0L

Accelerated Dragon 1 game 0W 0D 0L

Modern Variation 1 game 0W 0D 0L

Scotch Game 1 game 0W 1D 0L

Schmidt Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

As Black 3 games 1W 0D 2L

Four Knights Game 1 game 0W 0D 1L

Gunsberg Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Sicilian Defense 1 game 1W 0D 0L

Accelerated Dragon 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Horwitz Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Blunders Top 4 of 31

This player's costliest moves in analyzed games. Can you find the winning move?

2026.01.08 · 17... g6 (−67.9% win chance) 1-0

Masis Chaves, Sebastian

Salas Rojas, Jose Pablo

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2026.01.20 · 35... Rf4 (−49.7% win chance) 0-1

Masis Chaves, Sebastian

Montenegro Rojas, Mario Alejandro

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2026.01.20 · 104. Kg3 (−44.8% win chance) 1/2-1/2

Ramos Rodriguez, Daniel

Masis Chaves, Sebastian

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2026.01.21 · 42. Ke4 (−40.1% win chance) 1/2-1/2

Cerdas Amador, Matias

Masis Chaves, Sebastian

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Games Showing all 6 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.01.22	Round 5: Hidalgo Mendez, Emilio - Masis Chaves, Sebastian	5.16	2026.01.22 Hidalgo Mendez, Emilio (6519024) (1589)	0	70.10%	1. a3 e5 2. e4 Nf6 3. Nf3 Nc6
2026.01.21	Round 2: Masis Chaves, Sebastian - Cerdas Amador, Matias	2.16	2026.01.21 Cerdas Amador, Matias (6548849) (1652)	½	83.70%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2026.01.20	Round 5: Montenegro Rojas, Mario Alejandro - Masis Chaves, Sebastian	5.16	2026.01.20 Montenegro Rojas, Mario Alejandro (6528651) (1501)	1	75.30%	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
2026.01.20	Round 2: Masis Chaves, Sebastian - Ramos Rodriguez, Daniel	2.16	2026.01.20 Ramos Rodriguez, Daniel (6511635) (1936)	½	88.40%	1. e4 c5 2. Nf3 a6 3. d4 cxd4
2026.01.08	Round 6: Masis Chaves, Sebastian - Hernandez Perez, Javier Francisco	6.13	2026.01.08 Hernandez Perez, Javier Francisco (63300028) (1804)	*	-	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
2026.01.08	Round 3: Salas Rojas, Jose Pablo - Masis Chaves, Sebastian	3.13	2026.01.08 Salas Rojas, Jose Pablo (6566227)	0	49.10%	1. d4 e6 2. Bf4 f5 3. Nf3 Nf6