[Event "Regla del cuadrado: Chapter 8"] [Site "https://lichess.org/study/VaDFZJSN/mWFWZPHi"] [Result "*"] [Variant "From Position"] [ECO "?"] [Opening "?"] [Annotator "https://lichess.org/@/AaronGT24"] [FEN "8/5p2/1p2p2p/1pk1P3/6PP/1K6/8/8 w - - 0 1"] [SetUp "1"] [UTCDate "2017.08.29"] [UTCTime "02:16:05"] [Source "https://lichess.org/study/VaDFZJSN/mWFWZPHi"] [Orientation "white"] 1. h5 { [%cal Gg4g5,Gh6g5,Gh5h8] } (1. g5? { [%cal Gh6g5,Gh4h8] } 1... h5 { [%csl Re5,Rh4,Rg5,Yg6][%cal Gc5g4,Gf7g6] }) 1... Kd4 { [%csl Re5,Rg4][%cal Gd4e5,Ge5g4] } 2. g5 { [%cal Gh6g5,Gh5h8] } 2... Kxe5 { [%cal Ge5g7] } (2... hxg5 { [%cal Bh5h8,Be5e8,Be8h8,Be5h5] } 3. h6 { [%cal Bf6f8,Bf6h6,Bf8h8,Bh6h8] } 3... g4 { [%cal Bf6h6,Bh6h8,Bf8h8,Bf6f8] } 4. h7 { [%cal Bg7h7,Bg8h8,Bh7h8,Bg7g8] } 4... g3 { [%cal Bg7h7,Bg8h8,Bh7h8,Bg7g8] } 5. h8=Q $18) 3. gxh6 { [%csl Bg6,Bg7][%cal Ge5g7,Gh6h8,Bh5g6,Bh6g7] } 3... Kf6 { El rey negro no se puede mover, ya que está atado al avance de los peones. El rey blanco es capaz de parar todos los peones negros gracias a la regla del cuadrado. } { [%csl Bg6,Bg7][%cal Gh6h8,Bh5g6,Bh6g7] } 4. Kb4 { [%csl Rb5,Rb6,Re6,Yf6] } 4... e5 { [%csl Yf6][%cal Be5e1,Ba5a1,Ba1e1,Ba5e5] } 5. Kxb5 { [%csl Yf6][%cal Be5e1,Ba5a1,Ba1e1,Ba5e5] } 5... e4 { [%cal Bb4e4,Bb1e1,Be4e1,Bb4b1] } 6. Kc4 { [%csl Yf6][%cal Be4e1,Bb4b1,Bb4e4,Bb1e1] } 6... b5+ { [%csl Yf6][%cal Gc4b5,Ge4e1,Bb4e4,Bb1e1,Bb4b1] } 7. Kd4 { [%csl Yf6][%cal Be4e1,Bb4b1,Bb4e4,Bb1e1] } 7... b4 { [%csl Yf6][%cal Bb4b1,Be4e1,Bb1e1,Bb4e4,Be4b4,Be1b1,Be1e4,Bb1b4] } 8. Kxe4 { [%csl Yf6][%cal Bb4b1,Be4e1,Be4b4,Be1b1] } 8... b3 { [%csl Yf6][%cal Bb3b1,Bd3d1,Bd3b3,Bd1b1] } 9. Kd3 { [%csl Yf6][%cal Bb3b1,Bd3d1,Bd1b1,Bd3b3] } 9... b2 { [%csl Yf6][%cal Bc2c1,Bc1b1,Bc2b2,Bb2b1] } 10. Kc2 { [%csl Rb1,Yf6][%cal Rc2b1,Gb2b1] } 10... b1=Q+ { [%csl Rb1,Yf6][%cal Rc2b1] } 11. Kxb1 { [%csl Yf6,Bg6,Bg7][%cal Bh5g6,Bh6g7] } 11... Ke7 { [%cal Bf6h6,Bf8h8,Bh6h8,Bf6f8] } 12. h7 $16 { [%cal Bg7g8,Bg8h8,Bg7h7,Bh7h8] } *