[Event "?"]  [Site "?"]  [Date "2017.05.26"]  [Round "?"]  [White "Tactics #53"]  [Black "   Sergei Rublevsky - Alexander Onischuk, Moscow, 1994   "]  [Result "*"]  [SetUp "1"]  [FEN "r1b1r2k/ppbnqppp/2pp4/5P2/4P3/P1NB2Q1/1PPB2PP/2K1RR2 w - - 0 1"]  [PlyCount "11"]   {[pgndiagram] Here White's first move is kinda obvious, but the follow up is  difficult. White wants to get rid of both e5 and f6 pawns, in order to have  deadly threats against h7 and the black king} 1. f6 $1 {More forcing move  order. Black has the choice of three moves, two captures and the queen retreat}  (1. e5 {Probably also wins}) (1. Nd5 cxd5 2. exd5 Qf8 {Leads nowhere}) 1... Qf8  {The most resillient defence. White has to display exceptional ingenuity to  continue his attack} (1... gxf6 2. Nd5 {[pgndiagram] Beautiful. Now this move  works} cxd5 3. exd5 Ne5 (3... Qf8 4. Qh4 {And mate on h7 follows}) 4. Qh4 f5 5.  Bg5 Qf8 6. Bf6+ {[pgndiagram] And White wins}) (1... Nxf6 2. e5 $1 {Opening  attack on h7} dxe5 3. Qh4 {[pgndiagram] Threatening Rxf6} (3. Bg5 {Is also  sufficient} e4 (3... Qf8 4. Rxf6) 4. Qh4 $1 Be5 5. Nxe4) 3... h6 4. Bxh6 {And  White wins}) 2. e5 $1 {The idea was already examined} Nxe5 (2... Rxe5 {Also  needs to be taken into account} 3. Qh4 $1 {Threatening mate} Rxe1+ (3... g6 4.  Bh6 Qe8 5. Bxg6 $3 {[pgndiagram] And wins}) 4. Rxe1 Nxf6 5. Bg5 {[pgndiagram]  And here Black doesn't have time to cover both h7 and the back rank} Qg8 (5...  Be6 6. Bxf6) 6. Bxf6 gxf6 7. Qxf6+ Qg7 8. Re8# {Is the issue}) 3. Bxh7 $3 {  [pgndiagram] The only move to win} Kxh7 4. Ne4 $1 {It is amazing that such a  slow build up to attack can work. White intends Qg5-Qh5+ and Ng5, and there is  nothing Black can do} Ng6 5. Qg5 {[pgndiagram]} Rxe4 (5... a6 {Just to  demonstrate the threat} 6. Qh5+ Kg8 7. Ng5 {And wins}) 6. Rxe4 {And White has  a winning attack. Very hard, but very rewarding tactical puzzle.} *