[Event "Opposition in chess: How to use Opposition to win a game?"]
[Site "https://lichess.org/study/syt8Kvkp/WY01Kuvs"]
[Result "*"]
[Variant "Standard"]
[ECO "?"]
[Opening "?"]
[Annotator "https://lichess.org/@/TSORniyotee"]
[FEN "8/2k5/8/8/2PK4/8/8/8 w - - 0 1"]
[SetUp "1"]
[UTCDate "2022.07.28"]
[UTCTime "12:10:59"]
[Source "https://lichess.org/study/syt8Kvkp/WY01Kuvs"]
[Orientation "white"]
{ In this position, it's white to play and convert the pawn into a queen. What do you think white should play? }
1. Kc5!! { White gains "opposition" by playing Kc5, blocking b6, c6, and d6 for black. } { [%csl Rb6,Rc6,Rd6] } 1... Kc8 { Black wants to stop the white pawn from advancing so it stays in the same file. } 2. Kc6 { White maintains the opposition. } { [%cal Gc6c8] } 2... Kb8 3. Kd7!! { Now instead of gaining opposition again, white grabs the d7 square to support the d6, d7, and d8 squares for pawn promotion. } { [%cal Gc4c8] } 3... Kb7 4. c5 Kb8 5. c6 Ka7 6. c7 Ka8 7. c8=Q+ *