[Event "Regla del cuadrado: N.N. - N.N."] [Site "https://lichess.org/study/VaDFZJSN/IujXbLIJ"] [Date "????.??.??"] [Round "-"] [White "N.N."] [Black "N.N."] [Result "1/2-1/2"] [Variant "From Position"] [ECO "?"] [Opening "?"] [Annotator "https://lichess.org/@/AaronGT24"] [FEN "K7/8/p7/1k6/5P2/8/8/8 w - - 0 1"] [SetUp "1"] [Source "https://lichess.org/study/VaDFZJSN/IujXbLIJ"] [Orientation "white"] { Usando esta idea el campeón mundial Em. Lasker se ha salvado en la siguiente partida. } 1. Kb7 { [%csl Ra1][%cal Ra6a1,Bf6f1,Bf6a6,Bf1a1] } 1... a5 { [%csl Ra1][%cal Ra5a1,Be5e1,Be5a5,Be1a1] } 2. Kc7 { [%csl Rf8,Ra1][%cal Rf4f8,Gf4b4,Gb4b8,Gb8f8,Ra5a1] } 2... Kc5 { [%csl Rf8,Yf7,Ra1][%cal Rf4f8,Yc5d5,Yd5e6,Ra5a1] } (2... a4 { [%csl Ra1][%cal Bd4d1,Bd4a4,Bd1a1,Ra4a1] } 3. f5 { [%csl Rf8,Ra1][%cal Rf5f8,Gc5c8,Gc8f8,Gc5f5,Ba4d4,Bd4d1,Ba1d1,Ra4a1] } 3... a3 4. f6 a2 5. f7 a1=Q 6. f8=Q) 3. Kd7 { [%csl Rf8,Ra1,Ye6][%cal Yd7e6,Rf4f8,Ra5a1,Gc5d5,Gd5e6] } 3... Kd5 { [%csl Ra1,Rf4][%cal Ra5a1,Be5a5,Be5e1,Be1a1,Yd5e4,Ye4f4] } 4. Ke7 { [%csl Ra1,Rf8][%cal Be5a5,Be5e1,Be1a1,Ra5a1,Rf4f8] } 4... Ke4 { parece que las negras ganan, pero... } { [%csl Ra1][%cal Ra5a1,Ye4f4,Be5e1,Be5a5,Be1a1] } 5. Ke6! { [%csl Yf5][%cal Re6c4,Ba5a1,Rf4f8,Be5e1,Be5a5,Be1a1] } 5... Kxf4 { [%cal Be5e1,Be5a5,Be1a1,Ba5a1] } 6. Kd5 { El rey está en cuadrado. Tablas. } { [%cal Ba5a1,Be5e1,Be5a5,Be1a1] } 1/2-1/2