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Mind Sports Olympiad online tournaments

Every online tournament of the Mind Sports Olympiad on PlayStrategy: the 2021 arenas and the MSO Grand Prix since. New tournaments are announced in the Mind Sports Olympiad group.

2026

PlayStrategy Medley - MSO GP 20265+5 • Chess • Rated • 9r SwissBerndR20 players
5pt Backgammon - MSO GP 20265 d/10 • Backgammon • Rated • 6r Swissolidan37 players
Dameo - MSO GP 202610+3 • Dameo • Rated • 6r Swissprodiz12 players
Go 13x13 - MSO GP 20265+5 • Go 13x13 • Rated • 7r SwissCassis12 players
Shogi - MSO GP 202610|10 • Shogi • Rated • 5r Swisskomacchin5 players
Lines of Action - MSO GP 2026 PREMIER10+5 • Lines Of Action • Rated • 9r Swisskspttw29 players
Chess 10+5 - MSO GP 202610+5 • Chess • Rated • 9r Swisskspttw25 players
5pt Nackgammon - MSO GP 2026 PREMIER10 d/10 • Nackgammon • Rated • 8r Swissolidan34 players
Antidraughts - MSO GP 202610+3 • Antidraughts • Rated • 6r Swisskumsangir11 players
Breakthrough - MSO GP 20265+3 • Breakthrough • Rated • 9r Swisskspttw15 players
Chess 960 - MSO GP 2026 PREMIER10+5 • Chess960 • Rated • 9r Swisskspttw15 players
5pt Hyper - MSO GP 20262.5 d/10 • Hyper • Rated • 10r Swissmilsp36 players
Atomic Chess - MSO GP 20265+3 • Atomic • Rated • 8r SwissBeyondOmniversalLVL13 players
Brazilian Draughts - MSO GP 20268+3 • Brazilian • Rated • 6r Swisskumsangir13 players
3pt Blitz Backgammon - MSO GP 20261.5 d/6 • Backgammon • Rated • 10r SwissMichaelco42 players
Togyzqumalaq - MSO GP 20267+2 • Togyzqumalaq • Rated • 9r Swisseldani4563 players
English Draughts - MSO GP 2026 PREMIER8+3 • American/English • Rated • 7r Swisspergioco14 players
Abalone - MSO GP 2026 PREMIER10 d/5 • Abalone • Rated • 9r SwissAirisson37 players
Xianggi - MSO GP 2026 PREMIER10+5 • Xiangqi • Rated • 9r SwissEllisL16 players
Chess Blitz - MSO GP 2026 Arena3+2 • Blitz Chess • Rated • 3h Arenakorbul232 players
Draughts Medley - MSO GP 2026 Arena5+3 • Frysk! • Rated • 3h 20m ArenaHawaiiBlue15 players
Backgammon Medley Arena2 d/10 • Backgammon • Rated • 3h 20m ArenaDanielroit44 players
Frisian Draughts - MSO GP 202610+3 • Frisian • Rated • 6r Swisspergioco13 players
9pt Backgammon - MSO GP 20269 d/10 • Backgammon • Rated • 7r Swisskevinbennet44 players
Oware - MSO GP 20265+2 • Oware • Rated • 8r Swissmrjohnson80 players
Othello - MSO GP 2026 PREMIER10+5 • Othello • Rated • 9r Swissrafa50528 players
Chess Variants Medley - MSO GP 2026 Arena5+3 • Three-check • Rated • 4h ArenaQueenEatingDragon21 players
Amazons - MSO GP 202610+5 • Amazons • Rated • 9r SwissMove12831 players
Go 19x19 - MSO GP 202610+10 • Go 19x19 • Casual • 6r Swissleepandeat15 players
International Draughts - MSO GP 2026 PREMIER10+3 • International • Rated • 7r Swisskimmenno26 players
7pt Backgammon - MSO GP 2026 PREMIER7 d/10 • Backgammon • Rated • 8r Swissmrtake48 players
Antichess - MSO GP 20265+3 • Antichess • Rated • 9r Swissoruro22 players

2025

PlayStrategy Medley - MSO GP 20255+5 • Abalone • Rated • 10r Swissberserker23 players
5pt Backgammon - MSO GP 20255 d/10 • Backgammon • Rated • 6r SwissMerryHatMan30 players
Abalone - MSO GP 202510+5 • Abalone • Rated • 9r Swisseobllor33 players
Russian Draughts - MSO GP 20255+3 • Russian • Rated • 6r SwissZAS14 players
Chess 960 - MSO GP 202510+5 • Chess960 • Rated • 9r Swisskspttw18 players
Frisian Draughts - MSO GP 20255+3 • Frisian • Rated • 7r Swisspergioco12 players
Breakthrough - MSO GP 20255+3 • Breakthrough • Rated • 9r Swisskspttw26 players
Chess 10+5 - MSO GP 2025 PREMIER10+5 • Chess • Rated • 9r Swisskspttw27 players
5pt Hyper - MSO GP 20252.5 d/10 • Hyper • Rated • 10r Swisskevinbennet36 players
3pt Blitz Backgammon - MSO GP 2025 PREMIER1.5 d/6 • Backgammon • Rated • 10r Swisstebatlatable35 players
Antidraughts - MSO GP 2025 PREMIER5+3 • Antidraughts • Rated • 9r Swissmarahonov_dima18 players
Chess Blitz - MSO GP 2025 Arena3+2 • Blitz Chess • Rated • 3h ArenaCheckmatealot46 players
7pt Backgammon - MSO GP 20257 d/10 • Backgammon • Rated • 8r SwissKobZero46 players
Go 19x19 - MSO GP 202510+10 • Go 19x19 • Casual • 6r Swisszhanshi9923 players
Amazons - MSO GP 2025 PREMIER10+5 • Amazons • Rated • 9r Swisspergioco29 players
Draughts Medley - MSO GP 2025 Arena5+3 • Russian • Rated • 4h Arenaderarzt16 players
Three-check Chess - MSO GP 20255+3 • Three-check • Rated • 7r Swisskspttw21 players
11pt Backgammon - MSO GP 202511 d/10 • Backgammon • Rated • 7r SwissMichaelco45 players
Antichess - MSO GP 20255+3 • Antichess • Rated • 7r Swissqueen-of-blunders22 players
Othello - MSO GP 2025 PREMIER10+5 • Othello • Rated • 9r Swisshappyworld30 players
Brazilian Draughts - MSO GP 2025 PREMIER5+3 • Brazilian • Rated • 9r SwissBOCTOK14 players
3pt Nackgammon - MSO GP 20253 d/10 • Nackgammon • Rated • 8r SwissFriskCristy45 players
Xianggi - MSO GP 202510+5 • Xiangqi • Rated • 7r SwissCTCTCTCTCT33 players
Chess Variants Medley - MSO GP 2025 PREMIER Arena5+3 • Antichess • Rated • 4h Arenaoruro51 players
Oware - MSO GP 2025 - PREMIER5+2 • Oware • Rated • 9r Swissmrjohnson44 players
English Draughts - MSO GP 20255+3 • American/English • Rated • 7r Swissderarzt18 players
1pt Backgammon - MSO GP 2025 Arena3 d/10 • Backgammon • Rated • 2h 30m Arenadeliap71 players
Shogi - MSO GP 20255|10 • Shogi • Rated • 7r Swisskomacchin14 players
Lines of Action - MSO GP 202510+5 • Lines Of Action • Rated • 9r Swisskspttw36 players
International Draughts - MSO GP 20255+3 • International • Rated • 7r Swisspergioco25 players

2024

Monster Chess - MSO Grand Prix 20245+3 • Monster • Rated • 8r Swisskspttw16 players
Brazilian Draughts MSO GP 20245+3 • Brazilian • Rated • 6r Swissjankis10 players
Oware - MSO GP 20245+2 • Oware • Rated • 8r Swissmrjohnson34 players
Three-check Chess - MSO GP 20245+3 • Three-check • Rated • 8r SwissBeyondOmniversalLVL20 players
English Draughts - MSO GP 2024 - PREMIER5+3 • American/English • Rated • 9r SwissZAS16 players
Chess 10+5 - MSO Grand Prix 202410+5 • Chess • Rated • 8r SwissHarvey19 players
Go 9x9 - MSO Grand Prix 20243+3 • Go 9x9 • Rated • 8r Swissjoanne_l15 players
Frisian Draughts - MSO GP 20245+3 • Frisian • Rated • 6r Swisspergioco10 players
Xiangqi - MSO Grand Prix 202410+5 • Xiangqi • Rated • 6r SwissCTCTCTCTCT11 players
Backgammon - MSO Grand Prix 20242 d/12 • Backgammon • Rated • 10r Swissolidan41 players
PlayStrategy Medley - MSO GP 20245+5 • Chess • Rated • 10r SwissJheps19 players
1pt Nackgammon - MSO Grand Prix 2024 Arena2 d/12 • Nackgammon • Rated • 2h Arenamrtake37 players
Lines of Action Medley - MSO Grand Prix 2024 Arena5+3 • Lines Of Action • Rated • 3h ArenaJheps21 players
Shogi Medley - MSO Grand Prix 2024 Arena3|10 • Shogi • Rated • 3h Arenakisia15 players
Othello - MSO Grand Prix 202410+5 • Othello • Rated • 9r Swisskrtecci15 players
Racing Kings - MSO Grand Prix 20245+3 • Racing Kings • Rated • 9r SwissBeyondOmniversalLVL16 players
Amazons - MSO Grand Prix 2024 - PREMIER10+5 • Amazons • Rated • 10r SwissMove12832 players
Frysk Draughts - MSO Grand Prix 20245+3 • Frysk! • Rated • 8r Swisspergioco12 players
Atomic Chess - MSO Grand Prix 20245+3 • Atomic • Rated • 8r SwissBeyondOmniversalLVL16 players
Go 13x13 - MSO Grand Prix 20245+5 • Go 13x13 • Rated • 6r SwissMove12813 players
Shogi - MSO Grand Prix 20245|10 • Shogi • Rated • 4r Swisskisia6 players
Russian Draughts - MSO Grand Prix 20245+3 • Russian • Rated • 6r Swissjankis8 players
Crazyhouse Chess MSO Grand Prix 20245+3 • Crazyhouse • Rated • 7r Swisskspttw8 players
Chess Variants Medley - MSO GP 2024 Arena5+3 • Crazyhouse • Rated • 4h Arenaoruro21 players
Mancala Medley - MSO GP 2024 Arena5+2 • Togyzqumalaq • Rated • 3h Arenabonny777721 players
Xiangqi Medley - MSO Grand Prix 2024 Arena5+3 • Xiangqi • Rated • 3h ArenaCTCTCTCTCT19 players
Chess 3+2 - MSO GP 2024 - PREMIER Arena3+2 • Blitz Chess • Rated • 3h Arenakspttw31 players
Breakthrough - MSO Grand Prix 20245+3 • BRKTHRU • Rated • 8r Swisspergioco10 players
Go 19x19 - MSO Grand Prix 2024 - PREMIER10+10 • Go 19x19 • Rated • 6r SwissMove12821 players
Antichess - MSO Grand Prix 20245+3 • Antichess • Rated • 9r Swissqueen-of-blunders19 players
Chess Bullet - MSO Grand Prix 2024 Arena1+0 • Bullet Chess • Rated • 1h ArenaMASINA8932 players
Othello Medley - MSO Grand Prix 2024 Arena5+3 • Othello • Rated • 3h Arenapeter202229 players
Draughts Medley - MSO Grand Prix 2024 Arena5+3 • American/English • Rated • 4h Arenajankis20 players
Pool Draughts - MSO Grand Prix 20245+3 • Pool • Rated • 8r Swissjankis11 players
Horde Chess - MSO Grand Prix 20245+3 • Horde • Rated • 8r Swisskspttw18 players
International Draughts - MSO Grand Prix 2024 - PREMIER5+3 • International • Rated • 9r Swissjankis14 players
Lines of Action - MSO GP 2024 - PREMIER10+5 • Lines Of Action • Rated • 10r SwissJheps32 players
Chess 960 - MSO Grand Prix 2024 - PREMIER10+5 • Chess960 • Rated • 10r Swisskspttw32 players
Antidraughts - MSO Grand Prix 20245+3 • Antidraughts • Rated • 7r Swissmarahonov_dima13 players
Togyzkumalak - MSO Grand Prix 20247+2 • Togyzqumalaq • Rated • 9r Swisspaulie20 players
King of the Hill - MSO GP 20245+3 • King of the Hill • Rated • 9r Swisskspttw18 players

2023

PlayStrategy Medley - MSO Grand Prix 20235+3 • Chess • Rated • 10r SwissJheps32 players
Russian Draughts - MSO Grand Prix 20235+3 • Russian • Rated • 9r SwissMarcoBR19 players
Shogi - MSO Grand Prix 20235|10 • Shogi • Rated • 6r Swisskomacchin15 players
Crazyhouse Chess - MSO Grand Prix 20235+3 • Crazyhouse • Rated • 9r Swisskspttw22 players
Amazons - MSO Grand Prix 202310+5 • Amazons • Rated • 8r Swisspergioco31 players
King of the Hill Chess - MSO Grand Prix 20235+3 • King of the Hill • Rated • 9r SwissBeyondOmniversalLVL20 players
Chess 3+2 Arena3+2 • Blitz Chess • Rated • 3h Arenakspttw37 players
Lines of Action Medley - MSO Grand Prix 2023 Arena5+3 • Lines Of Action • Rated • 3h ArenaJheps32 players
English Draughts - MSO GP 2023 - PREMIER5+3 • American/English • Rated • 9r Swissjankis24 players
Breakthrough Draughts - MSO Grand Prix 20235+3 • BRKTHRU • Rated • 9r Swissjankis20 players
Racing Kings - MSO Grand Prix 20235+3 • Racing Kings • Rated • 9r SwissFS-Schach32 players
No Castling Chess - MSO Grand Prix 20235+3 • No Castling • Rated • 9r Swisskspttw30 players
Chess Bullet - MSO Grand Prix 2023 Arena1+0 • Bullet Chess • Rated • 1h Arenafish22443 players
Mancala Medley Arena5+3 • Oware • Rated • 3h Arenapaulie16 players
Draughts Medley - MSO Grand Prix 2023 Arena5+3 • Pool • Rated • 4h 30m Arenamegamau29 players
Togyzkumalak - MSO Grand Prix 202310+5 • Togyzqumalaq • Rated • 9r Swissbakdaulet59 players
Chess 960 - MSO Grand Prix 202310+5 • Chess960 • Rated • 9r Swissmrtake33 players
Chess Variants Medley - MSO GP 2023 - PREMIER Arena5+3 • Atomic • Rated • 4h 40m Arenakspttw47 players
Brazilian Draughts - MSO Grand Prix 20235+3 • Brazilian • Rated • 9r Swissderarzt23 players
Othello - MSO GP 2023 - PREMIER10+5 • Othello • Rated • 10r Swissandrianib41 players
Horde Chess - MSO Grand Prix 20235+3 • Horde • Rated • 8r SwissLe_Nonpareil_ARMENIE23 players
Pool Draughts - MSO Grand Prix 20235+3 • Pool • Rated • 9r Swissjankis20 players
Frysk Draughts - MSO Grand Prix 20235+3 • Frysk! • Rated • 9r Swissjankis26 players
Oware - MSO GP 2023 - PREMIER5+3 • Oware • Rated • 9r Swissmrjohnson70 players
Chess 10+5 - MSO GP 2023 - PREMIER10+5 • Chess • Rated • 9r SwissScabripok41 players
Antichess - MSO Grand Prix 20235+3 • Antichess • Rated • 9r SwissXray29 players
Antidraughts - MSO Grand Prix 20235+3 • Antidraughts • Rated • 9r Swissmarahonov_dima23 players
Othello Medley - MSO Grand Prix 2023 Arena5+3 • Othello • Rated • 3h Arenaolidan33 players
Xiangqi Medley - MSO Grand Prix 2023 Arena5+3 • Xiangqi • Rated • 3h ArenaCTCTCTCTCT20 players
Atomic Chess - MSO Grand Prix 20235+3 • Atomic • Rated • 8r Swissknightleap29 players
Frisian Draughts - MSO GP 2023 - PREMIER5+3 • Frisian • Rated • 9r Swisspergioco20 players
Lines of Action - MSO GP 2023 - PREMIER10+5 • Lines Of Action • Rated • 10r Swisskspttw49 players
International Draughts - MSO Grand Prix 20235+3 • International • Rated • 9r Swissjankis33 players
Xiangqi - MSO Grand Prix 202310+5 • Xiangqi • Rated • 8r SwissCTCTCTCTCT20 players
Three-check Chess - MSO Grand Prix 20235+3 • Three-check • Rated • 8r SwissLiamCleryChess28 players

2022

Oware - MSO GP 20225+3 • Oware • Rated • 9r Swissmrjohnson72 players
Chess Medley - MSO GP 20225+3 • Chess • Rated • 8r SwissAyushZzz23 players
Chess Blitz - MSO GP 2022 Arena3+2 • Blitz Chess • Rated • 3h Arenakspttw28 players
Atomic - MSO GP 20225+3 • Atomic • Rated • 6r Swissginko8121 players
PlayStrategy Medley MSO GP '225+3 • International • Rated • 10r Swissclawmac22 players
Pool - MSO GP 20225+3 • Pool • Rated • 9r SwissRamazon_Master_IDF39 players
Frysk Draughts - MSO GP 20225+3 • Frysk! • Rated • 9r Swissderarzt21 players
Breakthrough - MSO GP 20225+3 • BRKTHRU • Rated • 9r Swissderarzt28 players
Int. Draughts - MSO GP 2022 Arena3+2 • International • Rated • 2h Arenaderarzt27 players
Draughts Medley - MSO GP 20225+3 • International • Rated • 8r Swissderarzt23 players
Brazilian Draughts - MSO GP 225+3 • Brazilian • Rated • 9r SwissAyx51 players
King of the Hill - MSO GP 20225+3 • King of the Hill • Rated • 9r Swissabdekker16 players
Racing Kings - MSO GP 20225+3 • Racing Kings • Rated • 9r SwissFS-Schach16 players
Antidraughts - MSO GP 20225+3 • Antidraughts • Rated • 9r Swissderarzt13 players
Three-check - MSO GP 20225+3 • Three-check • Rated • 9r Swissknightleap18 players
Othello - MSO GP 202210+5 • Othello • Rated • 9r SwissSOLFAREMI37 players
Russian Draughts - MSO GP 20225+3 • Russian • Rated • 9r SwissDracarys50 players
Crazyhouse - MSO GP 202210+5 • Crazyhouse • Rated • 7r SwissOgul117 players
Xiangqi - MSO GP 2022 Arena3+2 • Xiangqi • Rated • 2h ArenaCTCTCTCTCT23 players
Shogi - MSO GP 2022 Arena5+3 • Shogi • Rated • 2h Arenakomacchin17 players
Chess Bullet - MSO GP 2022 Arena1+0 • Bullet Chess • Rated • 1h ArenaW_Amadeus21 players
Scrambled Eggs - MSO GP 20225+3 • Scrambled Eggs • Rated • 7r SwissJheps15 players
Lines of Action - MSO GP 2022 Arena3+2 • Lines Of Action • Rated • 2h ArenaJheps34 players
Chess 960 - MSO GP 202210+5 • Chess960 • Rated • 9r Swissmrtake21 players
Lines of Action - MSO GP 202210+5 • Lines Of Action • Rated • 9r Swisskspttw43 players
Frisian - MSO GP 20225+3 • Frisian • Rated • 9r Swisspergioco17 players
Horde - MSO GP 20225+3 • Horde • Rated • 6r SwissLe_Nonpareil_ARMENIE17 players
No Castling - MSO GP 20225+3 • No Castling • Rated • 9r SwissScabripok24 players
Int. Draughts - MSO GP 202210+5 • International • Rated • 9r Swissjankis20 players
Antichess - MSO GP 20225+3 • Antichess • Rated • 9r SwissOgul118 players
Crazyhouse - MSO GP 2022 Arena3+2 • Crazyhouse • Rated • 2h Arenakspttw20 players
Chess 960 - MSO GP 2022 Arena3+2 • Chess960 • Rated • 2h ArenaW_Amadeus28 players
Flipello - MSO GP 2022 Arena3+2 • Othello • Rated • 2h ArenaSOLFAREMI35 players
Xiangqi - MSO GP 202210+5 • Xiangqi • Rated • 9r Swisslzh23 players
Chess 10+5 - MSO GP 202210+5 • Chess • Rated • 9r SwissW_Amadeus56 players
Shogi - MSO GP 202210+5 • Shogi • Rated • 9r Swisskomacchin20 players

2021

Bullet Chess - MSO 2021 Arena1+0 • Bullet Chess • Rated • 1h ArenaKimster9844 players
Antichess - MSO 2021 Arena3+2 • Antichess • Rated • 2h ArenaArman28 players
Atomic - MSO 20213+5 • Atomic • Rated • 9r SwissArman25 players
Bullet Chess - MSO 20211+0 • Chess • Rated • 10r SwissLunarGuardianNasus39 players
Atomic - MSO 2021 Arena3+2 • Atomic • Rated • 2h ArenaQueenEatingDragon32 players
Crazyhouse - MSO 2021 Arena3+2 • Crazyhouse • Rated • 2h ArenaRaymond_Duck33 players
Racing Kings - MSO 2021 Arena3+2 • Racing Kings • Rated • 1h ArenaQueenEatingDragon32 players
Horde - MSO 2021 Arena3+5 • Horde • Rated • 2h ArenaRaymond_Duck32 players
Standard Chess - MSO 202110+0 • Chess • Rated • 7r Swissjinwoonoh2007103 players
Three Check - MSO 20213+5 • Three-check • Rated • 9r SwissIlSicarioDeiPoveri48 players
King of the Hill - MSO 2021 Arena3+2 • King of the Hill • Rated • 2h ArenaMaestroASK37 players
Standard Chess - MSO 2021 Arena3+2 • Blitz Chess • Rated • 3h ArenaW_Amadeus50 players
Chess960 - MSO 20213+2 • Chess960 • Rated • 9r SwissW_Amadeus51 players
Lines Of Action Blitz MSO 20213+5 • Lines Of Action • Rated • 9r SwissJheps47 players
Crazyhouse - MSO 20215+3 • Crazyhouse • Rated • 9r SwissAbhishek14725839 players
Reconnecting