Chess Ultra Achievements Here is the full list of all 38 Chess Ultra achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc Flag Filter All None 6 Online Mode 4 Offline Mode 28 Online/Offline 32 Single Player 1 Difficulty Specific 3 Stackable 3 Cumulative + 2 Buggy - 34 Versus 2 Time/Date 3 x4 Players Required 1 x32 Players Required Link flagsOR joinAND join What are achievement flags? Click to find outApply Absolute PinPin a piece against your opponent's King 1 guideAlekhine’s GunStack two Rooks one behind another in the same file with the Queen at the rear 1 guideHide adsBack-rank MateDeliver checkmate by a Rook or Queen along a back rank, with the King's escape blocked by friendly pieces Doubled PawnHave two pawns of the same colour on the same file 1 guideO-O-OCastle queenside 1 guideO-OCastle kingside 1 guideCheckPut an opponent in check 1 guideCheckmateWin a game 1 guideChop WoodMake a capture or exchange 1 guidePromotionAdvance a pawn to the eighth rank 1 guideUnderpromotePromote a pawn to a Rook, Bishop, or Knight instead of a Queen 1 guideEn PassantPerform an en passant capture 1 guideDouble CheckDeliver a check by two pieces at the same time LearnerComplete all the tutorials 1 guidePiece CollectorCapture 100 pieces 1 guideEpaulette MateDeliver checkmate where the King is blocked on both sides by his own Rooks Fool's MateWin a game in three moves 1 guideScholar's MateWin a game in four moves 1 guideOctopusPlace a White Knight on e6 1 guideSpanish BishopDevelop a White King Bishop to b5 1 guideTournament AmateurWin a tournament Problem SolverComplete 50% of the chess challenges EloBeat an opponent with an Elo rating higher than yours 1 guideStranger DangerCreate a random online game 1 guideFriendly FireIssue an online challenge to a friend 1 guideBobby TimePlay a game using the Fischer timer 1 guideQueen SacrificeSacrifice the Queen then go on to win the game 1 guideFamily ForkUsing a Knight simultaneously attack the enemy King and Queen Elo EloBeat an opponent with an Elo rating more than 75 higher than yours 1 guideTournament ProWin 5 tournaments Blind PigsManoeuvre a pair of Rooks onto your opponent’s second rank 1 guideStalemateDraw a game by stalemate 1 guideBoden's MateDeliver checkmate by two crisscrossing Bishops, with the King's escape blocked by friendly pieces Tournament ChampionWin a 32 player tournament Elo Elo EloBeat an opponent with an Elo rating more than 150 higher than yours 1 guideChess ChampionBeat the computer on Grandmaster difficulty 1 guideProblem SolvedComplete all the chess challenges Tournament MasterWin 20 tournaments 1 guide