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Isaac Lipnitsky vs Lev Aronin
USSR Championship (1951), Moscow URS, rd 14, Dec-07
King's Indian Defense: Six Pawns Attack (E77)  ·  0-1

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 11 (minimum 6s/ply) 7...Nh5 8.Be3 e5 9.d5 Nd4 10.Qd2 c5 11.O-O f5 12.exf5 = 0.00 (37 ply) ⩲ +0.93 (31 ply)better is 8...a6 9.O-O e5 10.d5 Nd4 11.Bb1 Nxe2+ 12.Qxe2 f5 = +0.29 (30 ply) ⩲ +0.89 (23 ply) 10.h4 f5 11.h5 f4 12.Bf2 c5 13.hxg6 hxg6 14.Nb5 Nxb5 ⩲ +0.84 (31 ply)= -0.25 (34 ply) 12.Kf1 Nxe2 13.Nxe2 f5 14.h4 Qh6 15.Kg1 Nf6 16.Nc3 Rf7 = +0.34 (31 ply) ⩱ -0.68 (30 ply)better is 15.Bd3 f5 16.Rb1 f4 17.Qd2 b6 18.Kf1 Nf6 19.Kg1 a6 20.Na4 = -0.14 (29 ply) ⩱ -0.64 (32 ply)better is 16.O-O Rd8 17.b3 Bb7 18.Qd2 Ne6 19.Rd1 Nf6 20.Qe1 Ne8 = 0.00 (33 ply) ⩱ -0.71 (36 ply) 18.f4 Bg4 19.Qc2 Nxc4 20.Bxg7 Kxg7 21.Qf2 d5 22.O-O Rad8 = 0.00 (38 ply) 18...Rd8 19.O-O Qxh4 20.Rb1 Nxc4 21.Bxg7 Kxg7 22.f4 Qf6 ⩱ -1.16 (33 ply) ± +1.51 (36 ply)better is 24.Qd4 Qf6 25.Qe3 Rad8 26.Qg5 Qxg5+ 27.hxg5 f6 28.f4 Ng4 ± +1.86 (35 ply) ⩲ +1.27 (29 ply) 26.Qd4 Qf6 27.Qe3 Rad8 28.Qg5 Qxg5+ 29.hxg5 f6 30.f4 Ng4 ± +1.86 (35 ply) 26...Rad8 27.Qe1 Ng4 28.Qg3 f6 29.f5 gxf5 30.exf5 Bf7 ⩲ +1.00 (33 ply) ± +2.05 (31 ply) after 27.Qf2 Rad8 28.Bb3 Nb6 29.Bxe6 fxe6 30.Rxd8 Rxd8 31.Rd1 better is 28.Na4 Rad8 29.Qc5 Qc7 30.g3 Rb8 31.Qd4 Bf7 32.Bb3 Qa5 ± +1.96 (24 ply) ⩲ +1.21 (25 ply)better is 31.Bxc4 Bxc4 32.Qxf5 Qe5 33.g4 Be6 34.Qxh5 Qf4+ 35.Kb1 ⩲ +1.50 (25 ply)better is 31...Kh8 32.Qf4 Ne5 33.Qh6+ Kg8 34.Bxf7+ Qxf7 35.exf5 ⩲ +0.99 (25 ply)better is 32.Qf4 Ne5 33.Bxf7 Qxf7 34.Qxf5+ Qg6 35.Qxg6+ Kxg6 ⩲ +1.50 (23 ply) ⩲ +0.81 (25 ply) 36.Qf2 a5 37.Qf4 Kg7 38.Rd1 Qe7 39.Rxd8 Qxd8 40.Kc2 Qe7 ⩲ +0.79 (34 ply) 36...Qxf5 37.Qc7 Rf8 38.b3 Kg8 39.Kb2 Bg6 40.Qxc6 Kg7 = 0.00 (40 ply)better is 37.Qc3 Kg7 38.b3 Qxc3+ 39.Nxc3 Rd3 40.Ne2 Rd5 41.Rf1 ⩲ +0.77 (37 ply)= +0.23 (37 ply)better is 39...Kg7 40.Qg3+ Kh6 41.Qf4+ = 0.00 (40 ply)better is 40.Qe3 Kg7 41.a3 Qc4+ 42.Qc3 Rd4 43.Qxc4 Bxc4 44.g3 Bd3 ⩲ +0.58 (37 ply) 40...Kg7 41.a3 a5 42.Qxd4 Rxd4 43.g3 Rd3 44.Rd1 Re3 = 0.00 (40 ply) ⩲ +1.35 (33 ply) 41...Rd4 42.Qxc4 Rxc4+ 43.Kd2 Kg7 44.b3 Rb4 45.Kc3 Rb5 ⩲ +0.84 (36 ply) ± +1.84 (34 ply) 43.b3 Bd5 44.Nc3 Kf7 45.Rd1 a5 46.a4 Ke7 47.Re1+ Kf8 ± +1.84 (36 ply) 43...Kf7 44.b3 Bd3 45.Ne2 Rd5 46.Nf4 Rc5+ 47.Kd2 Bxf5 ⩲ +0.53 (32 ply) 44.Re7+ Kh6 45.b3 Bd3 46.g3 Rg4 47.Rxa7 Rxg3 48.Rf7 Rh3 ± +1.51 (27 ply) ⩲ +0.68 (27 ply) 47...Rg4 48.Kd2 Rxg3 49.Rxc5 Rf3 50.Rc7+ Kf8 51.Rxa7 ⩲ +1.19 (33 ply) 48.Rc7+ Rd7 49.Rxd7+ Bxd7 50.Ne4 Bc6 51.Nxc5 Ke7 52.Kd2 ± +2.49 (38 ply) ⩲ +0.80 (32 ply) 50.Ne2 Bg4 51.Nf4 Rxg3 52.Rxa7 Rg1+ 53.Kd2 Rh1 54.b4 ⩲ +1.20 (31 ply)= 0.00 (40 ply)better is 58.Ra8 f4 59.Nc5 Rg2 60.Ra7+ Kf6 61.Ne4+ Ke5 62.Nd2 f3 = -0.40 (26 ply) ⩱ -1.14 (25 ply) 59...Ke8 60.Rc2 Rg1+ 61.Kb2 f3 62.Kc3 Rg2 63.Nc7+ Kd7 -+ -2.66 (35 ply)= 0.00 (43 ply) 61.Nc5 Ke5 62.Kd2 Rg2+ 63.Kc3 Bf5 64.Nd3+ Ke6 65.Rf8 f2 = 0.00 (34 ply)-+ -2.80 (26 ply) 63.Nc7+ Ke5 64.Re8+ Kd6 65.Rf8 Be4 66.b6 Rg2 67.Kd1 Ke5 -+ -3.39 (37 ply)-+ -7.59 (34 ply)-+ mate-in-17 after 68.Nb3 Kg3 69.Nc1 Re3 70.Ne2+ Rxe2 71.Kxe2 Kg270.Ne6 Rd7 71.Kg2 Rd1 72.Kh2 f1=Q 73.a3 Qf2+ 74.Kh3 Rh1# -+ mate-in-50-1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

Annotations by Stockfish (Computer).      [35434 more games annotated by Stockfish]

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Kibitzer's Corner
Jul-17-22  cehertan: Brutal loss for white who was technically winning. Never so easy in practice.

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