Kostowski, Ireneus, Dr.FIDE ID 468961512Games5Wins1Draws6Losses46%ScorePeak rating1886Latest rating1853First seenAug 1, 2024Last seenNov 22, 2024Recent gamesDateWhiteResultBlackEventOpeningNov 22, 2024Liau1–0KostowskiRound 2: Liau, Kelly - Kostowski, Ireneus, Dr.Benko GambitNov 22, 2024Kostowski1–0DemiroersRound 1: Kostowski, Ireneus, Dr. - Demiroers, EmreIndian DefenseAug 1, 2024Kostowski0–1ArpRound 1: Kostowski, Ireneus, Dr. - Arp, Piotr AlexanderPirc Defense: Classical Variation—Kostowski0–1RatajekRubinstein Chess Festival 2025 - OPEN BIndian Defense—Kostowski½–½SoszkaRubinstein Chess Festival 2025 - OPEN BIndian Defense—Kostowski1–0KomendeckiRubinstein Chess Festival 2025 - OPEN BQueen's Pawn Game: Accelerated London System, Steinitz Countergambit—Kostowski1–0SzwedRubinstein Chess Festival 2025 - OPEN BRapport-Jobava System—Kostowski0–1TrybusRubinstein Chess Festival 2025 - OPEN BQueen's Pawn Game: Accelerated London System—Hampel0–1KostowskiRubinstein Chess Festival 2025 - OPEN BScandinavian Defense: Portuguese Gambit, Wuss Variation—Wojtowicz1–0KostowskiRubinstein Chess Festival 2025 - OPEN BScandinavian Defense: Portuguese Gambit, Melbourne Shuffle Variation—Jamka1–0KostowskiRubinstein Chess Festival 2025 - OPEN BEnglish Opening: Symmetrical Variation, Anti-Benoni Variation—Bednarski0–1KostowskiRubinstein Chess Festival 2025 - OPEN BScandinavian Defense: Portuguese Gambit, Correspondence Refutation
