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Deep Sengupta vs Tigran L Petrosian
Wch U20 2004  ·  Four Knights Game: General (C47)  ·  0-1
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Kibitzer's Corner
Jun-09-05
Premium Chessgames Member
  notyetagm: White resigns because he is mated by 29 ... Bg1+! 30 Kxg1 Qe1+ 31 Kg2 (31 Kh2 Re2#) Re2+ 32 Kf3 Qf2# (32 ... Rf2#, 32 ... Qf1#). Notice the critical role played by the Black f5-pawn, which denies the White king access to the g4-square. <White probably missed this point, that his king cannot escape from the Black e-file heavy pieces via g2 and f3 because the g4-square is covered by this f5-pawn.>
Jun-09-05
Premium Chessgames Member
  notyetagm: Here White blunders with 29 Rc1-c4??, allowing the forced mating line given above. <Moving away your defender of the backrank is almost always a tactical error.> That statement is an exaggeration but is nevertheless very close to the truth.
Jun-09-05
Premium Chessgames Member
  notyetagm: Yet another example of the <Three-Piece Rule>: you need at least 3 pieces to deliver mate, one to sacrifice (29 ... Bg1+!), two to give mate (31 ... Re2+, 32 ... Qf2#). Said in another way, <3 pieces attacking an undefended king is mate.>
Dec-21-05
Premium Chessgames Member
  notyetagm: 29 ... Bg1+!, a lovely <decoy for tempo>.
May-27-06  SnoopDogg: Wow what a game. Junior can't find d3!! it seems. I guess this Petrosian was right when he said after the game <human intuition is stronger than computer calculation> well at least in this game.
May-28-06
Premium Chessgames Member
  Open Defence: if you didn't know this was played in 2004 you would think that this was a game from the 19th century ..... I think Steinitz would like how the K went for a "walk" until d5 with no pawn cover.....
May-28-06
Premium Chessgames Member
  tamar: Black's intuition that plugging with 15... d3 is worth a rook is borne out by the variation:

16 Nxh8 f4 17 h3 Qe2+ 18 Qxe2+ fxe2+ 19 Kg2 f3!


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Sealing in White's King. If 20 Kxf3 Bxh3 is immune from capture because of the e2 pawn.

Jun-22-06
Premium Chessgames Member
  PhilFeeley: This was a slug-fest from move 4! Great game - very tense and entertaining.
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