Game is commented by IM Vladimir Barsky

G.Veskovi – M.Krylov
Round 5

The fifth round has pleased spectators with a duel of Brazilian grandmaster Giovanni Veskovi and the young Moscow master, student RSSU Michael Krylov. Four (!) pawns at once, on two at each of the opponents, have reached a promotion square.

The position on the diagram reminds a typical modern etude where it is difficult to define, which way pawns go. The short inquiry: in a classical variant of King’s Indian Defence white King has been compelled to leave its residence on g1 quickly.  

51...g1Q
Grandmaster Nepomniachtchi Ian has offered the unexpected decision - 51... Rb8, braking both pawns on a promotion square.

However this "mysterious" move has a defect - White can advance to the attack on the King:
52.Qc2! Qf1+ 53.Ka5 Bf5 54.a7! with a win.

The amazing variant was found by Rybka:
51...Qf1! 52.Rd3 g1Q 53.a7 Qg4 54.a8Q e2 55.b8Q e1Q

After 52.a7 (instead of 52.Rd3) Black also win: 52...Bxc6+! 53.dxc6+ 53…d5! 54.Qd3 Qxd3+ 55.Rxd3 g1Q

56.a8Q (loosing 56.b8Q Qb1+ 57.Ka4 Rxb8) 56...Qb1+

57.Ka4 (after 57.Kc5 Be7+ 58.Kxd5 Qb5+ Black have a strong attack) 57...Qc2+

58.Ka5 (58.Rb3 Qxc6+ 59.Rb5 Rxa8+; 58.Ka3 Be7+) 58...Qa2+ 59.Kb4 Rxa8.
52.a7 Qgf1 53.a8Q

53...Qxc4+
Even stronger 53...Bxc6+ 54.dxc6+ Qxc4+! (Badly 54...d5? 55.Qxf8+! Qxf8 56.Qd3, White wins) 55.Kxc4 d5+

57.b8Q e1Q 58.Bxe1 Bxc6

59...Bxa8 60.Qg5+ Kf7

61...Ke7 62.Bh4+ Kd7 63.Qg4+ Rf5 64.Kc3 Qf4!
Practical and is very strong! Michael Krylov has estimated a situation truly and understood that White won’t rescue a pawn d5. Trouble come to the end, the technical stage begins.

65.Qxf4 Rxf4

66.Be1 Bb7 67.Rd4 Rf5 68.Kc4 Ba6+ 69.Kc3 Be2 70.Rd2 Bh5
Bishop is translated on f7, and the Rook will attack a pawn on 5th horizontal. White position is very difficult.

71.Bh4 Rf4 72.Rd4 Rf3+ 73.Rd3 Rf7 74.Rd2 Rf5 75.Rg2 Rf3+ 76.Kd2 Rf4 77.Rg7+ Kc8 78.Rg8+ Kb7 79.Bd8 Bf7 80.Rg7 Kc8 81.Ke3 Rf1 82.Ke2 Rf4 83.Ke3 Rf5