[Event "?"]  [Site "?"]  [Date "2017.07.18"]  [Round "?"]  [White "Tactics #68"]  [Black "   Lasker - Capablanca, St. Petersburg, 1914   "]  [Result "*"]  [SetUp "1"]  [FEN "4k1r1/1b1r4/1nppNp2/1p3Pp1/1P2P1P1/2N3KR/2P5/7R w - - 0 1"]  [PlyCount "7"]   1. e5 $3 {[pgndiagram] In this famous encounter, White is completely  dominating, but Lasker's way of finishing the game is beautiful nevertheless.  This clearance sacrifice opens the e4 square for the knight on c3 which enters  the stage with dramatic effect}   (1. Rh8 Rxh8 2. Rxh8+ Ke7 {And once again  White should go for the same sacrifice} 3. e5 {And wins}) 1... dxe5   (1... fxe5  {Doesn't change much} 2. Ne4 Nd5 3. Rh8 Rxh8 4. Rxh8+ Ke7 5. N4xg5 {  [pgndiagram] And wins}) 2. Ne4 $1 {White is completely winning} Nd5 3. N6c5 {  [pgndiagram] There were other ways of winning of course. Once White sees the  e5 idea, everything else plays itself.} Bc8   (3... Re7 4. Nxb7 {And the knight  is taboo due to the fork on d6}) 4. Nxd7 {And Capablanca resigned very quickly  afterwards} *