Costello, John vs Henry Marwa Michael - Olymp 2026 Open - 2026.09.26

Costello, John's games

2026.09.27 vs Kabamwanishi, Mashala 2026.09.26 vs Henry Marwa Michael 2026.09.25 vs Delrieu, Marc 2026.09.24 vs Abdou, Mohamed 2026.09.23 vs Ngwenya Kwanele Mangaliso 2026.09.21 vs MBOULA MBOUMBA, Jerome 2026.09.20 vs Husbands, Orlando 2026.09.18 vs Sai Han Thiha 2026.09.17 vs Canto, Roger Rashid 2026.09.16 vs Germanovs, Georgijs

Event	Olymp 2026 Open
Site	Sarmarkand, Uzbekistan
Date	2026.09.26
Round	10.366
White	Costello, John
Black	Henry Marwa Michael
Result	0-1
WhiteElo	1832
WhiteTeam	Isle of Man
WhiteFideId	451819
BlackElo	1807
BlackTeam	Tanzania
BlackFideId	21601712
Variant	Standard
ECO	E90
Opening	King's Indian Defense: Normal Variation, Rare Defenses
UTCDate	2026.09.26
UTCTime	06:37:20
BroadcastName	46th FIDE Chess Olympiad Samarkand 2026 \| Open \| Matches 63-87
BroadcastURL	https://lichess.org/broadcast/46th-fide-chess-olympiad-samarkand-2026-open-matches-63-87/round-10/0tWyDtvv
GameURL	https://lichess.org/broadcast/46th-fide-chess-olympiad-samarkand-2026-open-matches-63-87/round-10/0tWyDtvv/viOKZnUC

Engine eval --

0-1

Costello, John

3 blunders

1 mistake

2 inaccuracies

84% accuracy

Henry Marwa Michael

2 blunders

0 mistakes

2 inaccuracies

89% accuracy