Alternate solution to ERET 084 28.Bg5!

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acase
Posts: 983
Joined: Wed Mar 15, 2006 1:14 am
Location: Columbus, Ohio USA
Full name: Andrew R Case

Alternate solution to ERET 084 28.Bg5!

Post by acase »

There appears to be an equally or slightly better key move for ERET 084 in 28.Bg5!

[d]4r1k1/1r1np3/1pqp1ppB/p7/2b1P1PQ/2P2P2/P3B2R/3R2K1 w - - 0 28

Here's what I have so far AFTER MAKING THE MOVE 28.Bg5!, since Stockfish didn't find the move by itself.

Code: Select all

New game
4r1k1/1r1np3/1pqp1pp1/p5B1/2b1P1PQ/2P2P2/P3B2R/3R2K1 b - - 0 1

Analysis by Stockfish 180419 64 BMI2:

28...Nf8 29.Qh8+ Kf7 30.Bh6 Bxe2 31.Rxe2 Ke6 32.g5 Rbb8 33.Qg8+ Kd7 34.gxf6 
  +/= (0.62)  Depth: 13/20   00:00:00  299kN
28...Nf8 29.Qh8+ Kf7 30.Bxc4+ Qxc4 31.Bh6 Qxc3 32.Rc1 Qd4+ 33.Kh1 Qd3 34.Rh3 Rbb8 35.g5 Rbc8 36.Qg7+ Ke6 37.Qg8+ Kd7 38.gxf6 
  +/= (0.40)  Depth: 14/22   00:00:00  720kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 Kf7 31.Qh8 fxg5 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 
  = (0.00)  Depth: 15/27   00:00:00  1273kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 Kf7 31.Be3 Qxe3 32.Bxc4+ e6 33.Qh8 Qxc3 34.g5 Qe5 35.gxf6 Qxf6 36.e5 Qxh8 37.Rxh8 Kg7 38.Rh1 Rc8 39.Bd3 Rd7 40.a4 Rc3 41.Be4 Rxd6 
  = (0.14)  Depth: 16/29   00:00:00  3713kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 Kf7 31.Be3 Qxe3 32.Bxc4+ e6 33.Qh8 Qxc3 34.g5 Qe5 35.gxf6 Qxf6 36.e5 Qxh8 37.Rxh8 Kg7 38.Rh2 b5 39.Bd3 b4 40.Kg3 Rf7 41.Ra6 Rd7 42.Bc4 
  = (0.14)  Depth: 17/29   00:00:00  4132kN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Bxe2 31.Rxe2 Ke6 32.Red2 Rbb8 33.Qg8+ Kd7 34.Qf7 g5 35.Rd5 b5 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.Qd5+ Kc7 39.Qc5+ Kd7 40.Qa7+ Ke6 41.Qxa5 
  +/= (0.69)  Depth: 18/32   00:00:00  8334kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 Kf7 31.Be3 Qb5 32.Rd5 Qc6 33.Rd2 Bxe2 34.Rxe2 Rd7 35.Qh8 Qb5 36.Kg3 Rd3 37.Bd4 Qc6 38.g5 e5 39.Be3 Rc8 40.gxf6 Qxf6 41.Qxf6+ Kxf6 
  = (0.29)  Depth: 19/38   00:00:00  11295kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 Kf7 31.Be3 Qb5 32.Rd5 Qc6 33.Rd2 Bxe2 34.Rxe2 Rd7 35.Qh8 Rd1 36.Bh6 Nd7 37.Qh7+ Ke6 38.Qxg6 Ne5 39.Qf5+ Kd6 40.Bf4 Qxc3 41.Bxe5+ Qxe5 42.Qxe5+ Kxe5 43.Rh5+ Ke6 44.e5 Kf7 45.Kg3 Rg8 46.Rh7+ Rg7 47.Rh6 Rg1+ 48.Kf2 
  = (0.24)  Depth: 20/38   00:00:01  14899kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 Kf7 31.Be3 Qb5 32.Rd5 Qc6 33.Rd2 Bxe2 34.Rxe2 Rd7 35.Qh8 Rd1 36.Bh6 Nd7 37.Qh7+ Ke6 38.Qxg6 Ne5 39.Qf5+ Kd6 40.Bf4 Qxc3 41.Bxe5+ Qxe5 42.Qxe5+ Kxe5 43.Rh5+ Ke6 44.e5 Kf7 45.Kg3 Rg8 46.Rh7+ Rg7 47.Rh6 Rg1+ 48.Kf2 
  +/= (0.54)  Depth: 21/46   00:00:01  17667kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 Kf7 31.Be3 Qb5 32.Rd5 Qc6 33.Rc5 bxc5 34.Bxc4+ e6 35.Kg3 Qd6+ 36.f4 Rb1 37.g5 Re1 38.Be2 Rxe2 39.Rxe2 Qd3 40.Kf2 fxg5 41.Qxg5 Qxc3 42.e5 Rc8 43.Qh6 
  +/= (0.33)  Depth: 22/52   00:00:01  26079kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 
  = (0.00)  Depth: 23/52   00:00:01  37742kN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 
  = (0.00)  Depth: 24/52   00:00:02  46331kN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kf1 Rc7 32.Rd5 Qa3 33.Bxc4 Rxc4 34.Qg7+ Ke6 35.Qg8+ Kd7 36.Rxd6+ Qxd6 37.Rd2 Qxd2 38.Bxd2 Rc6 39.Qd5+ Kc7 40.Bf4+ e5 41.Qf7+ Kd8 42.Qd5+ 
  = (0.00)  Depth: 25/52   00:00:02  59854kN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kf1 Rc7 32.Rd5 Qa3 33.Bxc4 Rxc4 34.Qg7+ Ke6 35.Qg8+ Kd7 36.Rxd6+ Qxd6 37.Rd2 Qxd2 38.Bxd2 Rec8 39.Qd5+ Ke8 40.Bh6 Rxc3 41.Kg2 g5 42.Qg8 Rc1 43.Bxf8 R8c2+ 44.Kg3 Rg1+ 45.Kh3 Rh1+ 46.Kg3 
  = (0.00)  Depth: 26/52   00:00:02  61998kN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kf1 Rc7 32.Rd5 Qa3 33.Bxc4 Rxc4 34.Qg7+ Ke6 35.Qg8+ Kd7 36.Rxd6+ Qxd6 37.Rd2 Qxd2 38.Bxd2 Rec8 39.Qd5+ Ke8 40.Bh6 Rxc3 41.Kg2 g5 42.Qg8 Rc1 43.Kg3 Kd7 44.Bxf8 R8c2 45.Qf7 Rg1+ 46.Kh3 Rh1+ 47.Kg3 
  = (0.00)  Depth: 27/56   00:00:02  69004kN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kf1 Rc7 32.Rd5 Qa3 33.Bxc4 Rxc4 34.Qg7+ Ke6 35.Qg8+ Kd7 36.Rxd6+ Qxd6 37.Rd2 Qxd2 38.Bxd2 Rec8 39.Qd5+ Ke8 40.Bh6 Rxc3 41.Kg2 g5 42.Qg8 Rc1 43.Kf2 R8c2+ 44.Ke3 Rc3+ 45.Kd2 R1c2+ 46.Kd1 Rc1+ 47.Ke2 
  = (0.00)  Depth: 28/56   00:00:03  74273kN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kf1 Rc7 32.Rd5 Qa3 33.Bxc4 Rxc4 34.Qg7+ Ke6 35.Qg8+ Kd7 36.Rxd6+ Qxd6 37.Rd2 Qxd2 38.Bxd2 Rec8 39.Qd5+ Ke8 40.Bh6 Rxc3 41.Kg2 g5 42.Qg8 Rc1 43.Kf2 R8c2+ 44.Ke3 Rc3+ 45.Kd2 R1c2+ 46.Kd1 Rc1+ 47.Ke2 
  = (0.00)  Depth: 29/39   00:00:03  87182kN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kf1 Rc7 32.Rd5 Qa3 33.Bxc4 Rxc4 34.Qg7+ Ke6 35.Qg8+ Kd7 36.Rxd6+ Qxd6 37.Rd2 Qxd2 38.Bxd2 Rec8 39.Qd5+ Ke8 40.Bh6 Rxc3 41.Kg2 g5 42.Qg8 Rc1 43.Kf2 R8c2+ 44.Ke3 Rc3+ 45.Kd2 R1c2+ 46.Kd1 Rc1+ 47.Ke2 
  = (0.09 --)  Depth: 30/39   00:00:03  97978kN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kf1 Rc7 32.Rd5 Qa3 33.Bxc4 Rxc4 34.Qg7+ Ke6 35.Qg8+ Kd7 36.Rxd6+ Qxd6 37.Rd2 Qxd2 38.Bxd2 Rec8 39.Qd5+ Ke8 40.Bh6 Rxc3 41.Kg2 g5 42.Qg8 Rc1 43.Kf2 R8c2+ 44.Ke3 Rc3+ 45.Kd2 R1c2+ 46.Kd1 Rc1+ 47.Ke2 
  = (0.19 --)  Depth: 30/39   00:00:04  105MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kf1 Rc7 32.Rd5 Qa3 33.Bxc4 Rxc4 34.Qg7+ Ke6 35.Qg8+ Kd7 36.Rxd6+ Qxd6 37.Rd2 Qxd2 38.Bxd2 Rec8 39.Qd5+ Ke8 40.Bh6 Rxc3 41.Kg2 g5 42.Qg8 Rc1 43.Kf2 R8c2+ 44.Ke3 Rc3+ 45.Kd2 R1c2+ 46.Kd1 Rc1+ 47.Ke2 
  = (0.09 ++)  Depth: 30/50   00:00:06  162MN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 37.Qh5+ Kf8 
  = (0.00)  Depth: 30/50   00:00:06  162MN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 37.Qh5+ Kf8 38.Qh8+ Kf7 39.Qh7+ 
  = (0.00)  Depth: 31/30   00:00:07  187MN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 37.Qh5+ Kf8 38.Qh8+ Kf7 39.Qh7+ 
  = (0.00)  Depth: 32/22   00:00:07  195MN
28...Nf8 29.Qh8+ Kf7 30.Rxd6 Qc5+ 31.Kg2 fxg5 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 
  = (0.00)  Depth: 33/28   00:00:09  262MN
28...Nf8 29.Qh8+ Kf7 30.Rxd6 Qc5+ 31.Kg2 fxg5 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 
  = (0.09 --)  Depth: 34/45   00:00:11  315MN
28...Nf8 29.Qh8+ Kf7 30.Rxd6 Qc5+ 31.Kg2 fxg5 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 
  = (0.00 ++)  Depth: 34/53   00:00:12  333MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.e5 fxe5 34.Red2 Kd7 35.Qg8 Ne6 36.Qf7 Rc8 37.Rd5 Rh8 38.Rxd6+ Qxd6 39.Rxd6+ Kxd6 40.Qxg6 Rc7 41.Qd3+ Kc6 42.Qe4+ Kd6 
  = (0.00)  Depth: 34/53   00:00:13  350MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.e5 fxe5 34.Red2 Kd7 35.Qg8 Ne6 36.Qf7 Rh8 37.Rxd6+ Qxd6 38.Rxd6+ Kxd6 39.Qxg6 Rc7 40.Qd3+ Kc6 41.Qe4+ Kd6 
  = (0.00)  Depth: 35/28   00:00:15  420MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.e5 fxe5 34.Red2 Kd7 35.Qg8 Ne6 36.Qf7 Rh8 37.Rxd6+ Qxd6 38.Rxd6+ Kxd6 39.Qxg6 Rc7 40.Qd3+ Kc6 41.Qe4+ Kd6 
  = (0.09 --)  Depth: 36/48   00:00:16  441MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.e5 fxe5 34.Red2 Kd7 35.Qg8 Ne6 36.Qf7 Rh8 37.Rxd6+ Qxd6 38.Rxd6+ Kxd6 39.Qxg6 Rc7 40.Qd3+ Kc6 41.Qe4+ Kd6 
  = (0.00 ++)  Depth: 36/54   00:00:18  508MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.exf6 Rxf6 40.g5 Rxf3 41.Qxg6+ Ke5 42.Qg7+ Ke6 
  = (0.00)  Depth: 36/58   00:00:19  522MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.exf6 Rxf6 40.g5 Rxf3 41.Qxg6+ Ke5 42.Qg7+ Ke6 43.Qh7 Rbf8 44.Qe4+ Kd6 45.Qd4+ Ke6 
  = (0.00)  Depth: 37/59   00:00:23  658MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.exf6 Rxf6 40.g5 Rxf3 41.Qxg6+ Ke5 42.Qg7+ Ke6 43.Qh6+ Kf5 44.Kg2 Rxc3 45.Qh7+ Kg4 46.Qe4+ Kh5 47.Qe2+ Kg6 48.Qe4+ 
  = (0.00)  Depth: 38/60   00:00:28  782MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.exf6 Rxf6 40.g5 Rxf3 41.Qxg6+ Ke5 42.Qg7+ Ke6 43.Qd4 Rbf8 44.Qe4+ Kd6 45.Qd4+ 
  = (0.00)  Depth: 39/35   00:00:34  951MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.Qxg6 Kxe5 40.Qf5+ Kd6 41.Qd3+ Ke6 42.Qe4+ Kd6 
  = (0.00)  Depth: 40/36   00:00:40  1126MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.Qxg6 Kxe5 40.Qf5+ Kd6 41.Qd3+ Ke6 42.Qc4+ Kd6 43.Qd4+ Ke6 44.Qe4+ 
  = (0.00)  Depth: 41/65   00:00:48  1364MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.Qxg6 Kxe5 40.Qf5+ Kd6 41.Qd3+ Ke6 42.Qc4+ Kd6 43.Qd4+ Ke6 44.Qe4+ 
  = (0.00)  Depth: 42/32   00:01:01  1759MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.Qxg6 Kxe5 40.Qf5+ Kd6 41.Qd3+ Ke6 42.Qe4+ Kd6 
  = (0.00)  Depth: 43/32   00:01:14  2145MN
28...Nf8 29.Qh8+ Kf7 30.Bh6 Qc5+ 31.Kh1 Bxe2 32.Rxe2 Ke6 33.Red2 Kd7 34.Bxf8 Rbb8 35.Qg7 Rxf8 36.Rxd6+ Qxd6 37.Rxd6+ Kxd6 38.e5+ Ke6 39.Qxg6 Kxe5 40.Qf5+ Kd6 41.Qd3+ Ke6 42.Qe4+ Kd6 
  = (0.09 --)  Depth: 44/63   00:01:24  2461MN
28...Nf8 29.Rxd6 
  +/- (0.89 --)  Depth: 44/63   00:01:54  3411MN
28...Nf8 29.Rxd6 
  +/= (0.33 --)  Depth: 44/71   00:02:15  4042MN
28...Nf8 29.Rxd6 
  +/= (0.53 --)  Depth: 44/71   00:02:15  4063MN
28...Nf8 29.Qh8+ 
  +/- (0.79 --)  Depth: 44/71   00:02:16  4097MN
28...Nf8 29.Qh8+ 
  +/- (1.15 --)  Depth: 44/71   00:02:18  4158MN
28...Nf8 29.Qh8+ Kf7 30.Rxd6 Qc5+ 31.Kg2 fxg5 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 37.Rc6 Bxe2 38.Qg6+ Kf8 39.Rxc5 bxc5 40.Qf5+ Kg7 41.Qxg5+ Kf8 42.Qf5+ Kg7 43.Qe5+ Kf8 44.Qh8+ Kf7 45.Qh7+ Ke6 46.Qh6+ Kf7 47.e5 Rf8 48.e6+ Kg8 49.g5 Bxf3+ 50.Kg3 Be4 51.g6 Bxg6 52.Qxg6+ Kh8 53.Qh5+ Kg7 54.Qg5+ Kh7 55.Qd5 Rc7 56.Qh5+ Kg8 57.Qe5 Rfc8 58.Qg5+ Kh7 59.Qh5+ Kg7 60.Qf7+ Kh8 61.Kf4 a4 62.c4 a3 63.Ke5 Ra7 64.Qf5 
  +/- (1.37)  Depth: 44/85   00:02:26  4412MN
28...Nf8 29.Qh8+ Kf7 30.Rxd6 Qc5+ 31.Kg2 fxg5 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 37.Rc6 Bxe2 38.Qg6+ Kf8 39.Rxc5 bxc5 40.Qf5+ Kg7 41.Qxg5+ Kf8 42.Qf5+ Kg7 43.Qe5+ Kf8 44.Qh8+ Kf7 45.Qh7+ Ke6 46.Qh6+ Kf7 47.e5 Rf8 48.e6+ Kg8 49.g5 Bxf3+ 50.Kg3 Be4 51.g6 Bxg6 52.Qxg6+ Kh8 53.Qh5+ Kg7 54.Qg5+ Kh7 55.Qd5 Rc7 56.Qh5+ Kg8 57.Qe5 Rfc8 58.Qg5+ Kh7 59.Qh5+ Kg7 60.Qf7+ Kh8 61.Kf4 a4 62.c4 a3 63.Ke5 Ra7 64.Qf5 
  +/- (1.46 --)  Depth: 45/23   00:02:33  4615MN
28...Nf8 29.Rxd6 
  +/- (1.55 --)  Depth: 45/80   00:02:36  4690MN
28...Nf8 29.Qh8+ 
  +- (1.69 --)  Depth: 45/100   00:02:46  5030MN
28...Nf8 29.Rxd6 
  +- (1.89 --)  Depth: 45/100   00:02:48  5085MN
28...Nf8 29.Qh8+ 
  +- (2.16 --)  Depth: 45/100   00:02:56  5326MN
28...Nf8 29.Rxd6 
  +- (2.52 --)  Depth: 45/100   00:03:18  6057MN
28...Nf8 29.Qh8+ 
  +- (2.99 --)  Depth: 45/112   00:04:19  8051MN
28...Nf8 29.Qh8+ Kf7 30.Rxd6 Qc5+ 31.Kg2 fxg5 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 37.Rc6 Bxe2 38.Qg6+ Kf8 39.Rxc5 bxc5 40.Qf5+ Kg7 41.Qxg5+ Kf8 42.Qf5+ Kg7 43.Qe5+ Kf8 44.Qh8+ Kf7 45.Qh5+ Kf8 46.e5 Rb2 47.Qh8+ Kf7 48.Qh7+ Kf8 49.Kg3 e6 50.f4 Bxg4 51.Kxg4 Rg2+ 52.Kf3 Rg7 53.Qe4 Rg1 54.a4 Rh1 55.Qg6 Re7 56.Ke4 Re1+ 57.Kd3 c4+ 58.Kd4 Rd1+ 59.Kxc4 Rd8 60.Kb3 Rb7+ 61.Kc2 Re7 62.Qh6+ Kg8 63.Qf6 Rde8 64.Qg6+ Kf8 65.Qh6+ Kg8 66.Kd3 Rg7 67.Ke4 Rg3 68.Qf6 Rxc3 69.Qg6+ Kf8 
  +- (2.99)  Depth: 45/112   00:04:24  8244MN
28...Nf8 29.Qh8+ Kf7 30.Rxd6 Qc5+ 31.Kg2 fxg5 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Rc6 Bxe2 37.Rxc5 bxc5 38.Qf5+ Kg7 39.Qxg5+ Kf8 40.Qf5+ Kg7 41.Qe5+ Kf8 42.Qh8+ Kf7 43.Qh5+ Kf8 44.e5 Rb2 45.Qh8+ Kf7 46.Qh7+ Kf8 47.Kg3 e6 48.f4 Bc4 49.f5 exf5 50.gxf5 Re7 51.Qh8+ Bg8 52.Qf6+ Bf7 53.Qd6 Ke8 54.e6 Reb7 55.Qc6+ Kf8 56.Qxc5+ Kg7 57.exf7 Kxf7 58.Kf4 Rd7 59.a4 Rbd2 60.Qxa5 Rf2+ 61.Kg4 Rg2+ 62.Kf3 Rc2 63.Ke3 Rcd2 64.Qa6 R2d6 65.Qc4+ Kg7 66.Kf4 Ra7 67.Kg5 Rda6 68.Qd5 Rxa4 69.f6+ Kf8 70.c4 Ra1 
  +- (3.03)  Depth: 46/85   00:04:30  8414MN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Rc6 Bxe2 37.Rxc5 bxc5 38.Qf5+ Kg7 39.Qxg5+ Kf8 40.Qf5+ Kg7 41.Qe5+ Kf8 42.Qh8+ Kf7 43.Qh5+ Kf8 44.e5 Rb2 45.Qh8+ Kf7 46.Qh7+ Kf8 47.Kg3 e6 48.f4 Bc4 49.f5 exf5 50.gxf5 Re7 51.Qh8+ Bg8 52.Qf6+ Bf7 53.Qd6 Ke8 54.e6 Bxe6 55.f6 Rd7 56.Qxe6+ Kd8 57.Qe5 a4 58.Qxc5 Rdd2 59.f7 Rg2+ 60.Kf3 Rgf2+ 61.Qxf2 Rxf2+ 62.Kxf2 Ke7 63.Ke3 Kxf7 64.Kd4 Ke7 65.Kc5 Kd7 66.Kb4 Kc6 67.Kxa4 Kc5 68.Ka5 Kc4 69.a4 Kc5 70.c4 Kc6 71.Kb4 
  +- (3.08)  Depth: 47/87   00:04:42  8809MN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 37.Rc6 Bxe2 38.Qg6+ Kf8 39.Rxc5 bxc5 40.Qf5+ Kg7 41.Qxg5+ Kf8 42.Qf5+ Kg7 43.Qe5+ Kf8 44.Qh8+ Kf7 45.Qh5+ Kf8 46.e5 Rb2 47.Qh8+ Kf7 48.Qh7+ Kf8 49.Kg3 e6 50.f4 Bxg4 51.Kxg4 Re7 52.Qh8+ Kf7 53.Qf6+ Ke8 54.a4 Rd2 55.Qg6+ Kf8 56.Kf3 Rd1 57.Qf6+ Ke8 58.Qh8+ Kf7 59.Ke4 Rd2 60.f5 exf5+ 61.Kxf5 Rf2+ 62.Ke4 c4 63.Qh5+ Kg7 64.Qg4+ Kf7 65.Ke3 Rf6 66.Qxc4+ Kf8 67.Ke4 Rh6 68.Qc5 Kf7 69.Kf5 Rh5+ 70.Kf4 Kf8 71.Qd6 Rh1 72.Qd8+ Re8 73.Qf6+ Kg8 74.Ke4 Rd1 75.e6 Re1+ 76.Kd5 R8xe6 77.Qxe6+ Rxe6 78.Kxe6 Kf8 79.Ke5 Ke8 
  +- (3.08)  Depth: 48/106   00:05:10  9749MN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Qh6+ Kf7 37.Rc6 Bxe2 38.Qg6+ Kf8 39.Rxc5 bxc5 40.Qf5+ Kg7 41.Qxg5+ Kf8 42.Qf5+ Kg7 43.Qe5+ Kf8 44.Qh8+ Kf7 45.Qh5+ Kf8 46.e5 Rb2 47.Qh8+ Kf7 48.Qh7+ Kf8 49.Kg3 e6 50.f4 Bxg4 51.Kxg4 Re7 52.Qh8+ Kf7 53.Qf6+ Ke8 54.a4 Rd2 55.Qg6+ Kf8 56.Kf3 Rd1 57.Qf6+ Ke8 58.Qh8+ Kf7 59.Ke4 Rf1 60.Qh7+ Kf8 61.Qh3 Re1+ 62.Kd3 c4+ 63.Kd4 Ke8 64.Qh8+ Kd7 65.Qa8 Rd1+ 66.Ke3 Rd3+ 67.Ke4 Rxc3 68.Qxa5 Rb3 69.Qc5 Rb1 70.a5 Ke8 71.Qxc4 Ra1 72.a6 Kf8 73.Qc5 Kf7 74.Qb6 Ke8 75.Qb5+ Kf8 
  +- (3.08)  Depth: 49/98   00:05:52  11189MN
28...Nf8 29.Qh8+ 
  +- (3.17 --)  Depth: 50/104   00:06:44  12956MN
28...Nf8 29.Rxd6 
  +- (3.27 --)  Depth: 50/104   00:07:22  14214MN
28...Nf8 29.Rxd6 Qc5+ 30.Kg2 fxg5 31.Qh8+ Kf7 32.Rh7+ Nxh7 33.Qxh7+ Kf8 34.Qh6+ Kf7 35.Qxg6+ Kf8 36.Rc6 Bxe2 37.Rxc5 bxc5 38.Qf5+ Kg7 39.Qxg5+ Kf8 40.Qf5+ Kg7 41.Qe5+ Kf8 42.Qh8+ Kf7 43.Qh5+ Kf8 44.e5 Rb2 45.Qh8+ Kf7 46.Qh7+ Kf8 47.Kg3 e6 48.f4 Bxg4 49.Kxg4 Rg2+ 50.Kf3 Rg7 51.Qe4 Rd7 52.a4 Rd1 53.Qh7 Re7 54.Qh8+ Kf7 55.Ke4 Rf1 56.Qh7+ Kf8 57.Qh3 Rg1 58.Qh8+ Kf7 59.Kd3 c4+ 60.Kd4 Rf1 61.Kc5 Rg1 62.Qh5+ Kg7 63.Kd6 Rf7 64.Kxe6 Rxf4 65.Kd5 Rgf1 66.Qg5+ Kh7 67.Ke6 R1f3 68.Qh5+ Kg7 69.Kd6 Rf5 70.Qg4+ Kf8 71.Qxc4 R5f4 72.Qd5 
  +- (3.27)  Depth: 50/104   00:07:46  15006MN




[pgn][Event "Persson-Teichmeister, CorrGame 2009"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "ERET 084"] [Black "Koenigsangriff"] [Result "*"] [Annotator "Walter Eigenmann"] [SetUp "1"] [FEN "4r1k1/1r1np3/1pqp1ppB/p7/2b1P1PQ/2P2P2/P3B2R/3R2K1 w - - 0 28"] [PlyCount "13"] [SourceTitle "ERET Engine Test"] [Source "W. Eigenmann"] [SourceDate "2017.03.01"] [SourceVersion "1"] [SourceVersionDate "2017.03.01"] [SourceQuality "1"] {'Houdini 6.03 4CPU' >15s, 'Fizbo 2 4CPU' >15s, 'Deep Shredder 13 4CPU' >15s, 'Laser 1.7 4CPU' >15s, 'Andscacs 0.95 4CPU' >15s, 'Fritz 16 4CPU' >15s, 'Ethereal 11.25 4CPU' >15s, 'Chiron 4 4CPU' >15s, 'Critter 1.6a 4CPU' >15s, 'Deep Junior Yokohama 4CPU' >15s, 'Sting 14 4CPU' >15s, 'Deep Gandalf 7.0 2CPU' >15s, 'Naum 4.6 4CPU' >15s, 'Wasp 3.50 4CPU' >15s, 'Deep Rybka 4. 1 4CPU' >15s, 'Gull.3.1 4CPU' >15s, 'Rybka WinFinder 2.2 4CPU' >15s, 'Crafty 25.2 4CPU' >15s, 'Clueless 1.4 1CPU' >15s, 'Monarch 1.7 1CPU' >15s, 'Warrior 1.03 1CPU' >15s, 'Roce 0.0360 1CPU' >15s, 'Bright 0.5c 4CPU' >15s, 'Equinox 3.30 4CPU' >15s, 'Spike 1.4 4CPU' >15s, 'Senpai 1.0 4CPU' >15s, 'Deep Fritz 10 4CPU' 5.38s / 14, 'Pharaon 3.5.1 4CPU' 0.86s / 8 BEST, 'SOS 5.1 1CPU' >15s, 'Deep Sjeng WC2008 4CPU' >15s, 'Deep Onno 1-2-70 4CPU' >15s, 'Xiphos 0.5 4CPU' >15s, 'ProDeo 2.6 1CPU' >15s, 'Comet B68 1CPU' >15s, 'Komodo 12.3 4CPU' >15s, 'LC0 21.1 (41812) 2CPU' >15s, 'Fire 7.1 4CPU' >15s, 'Booot 6.3 4CPU' >15s, 'LittleGoliath2000 2.9a 1CPU' >15s, 'Stockfish 200419 4CPU' >15s, 'Nimzo 2000b 1CPU' >15s} 28. Bg7 (28. Be3 $2 Nf8 29. Bxc4+ (29. Qh8+ Kf7 30. Bd3 (30. Bxc4+ Qxc4 31. Bh6 Qxc3 32. Rf2 Ke6 $11) 30... Bxd3 31. Rxd3 Rc8 32. Rhd2 g5 $11) 29... Qxc4 30. g5 (30. Bd4 Kf7 31. g5 e5 32. Be3 fxg5 $11) 30... fxg5 31. Qxg5 Qf7 32. Rh6 Rc7 $11) (28. Bxc4+ $2 Qxc4 $11) 28... Kf7 (28... Kxg7 29. Qh7+ Kf8 30. Qxg6 Bg8 31. Rh8 Qc5+ 32. Kh1 Qd5 33. exd5 e6 34. Rxg8+ Ke7 35. Rxe8#) (28... Ne5 29. Qh7+ Kf7 30. f4 $18) (28... Nf8 29. Bxf8 Kxf8 30. Qh8+ $18) 29. Qh7 Ne5 (29... Qc5+ 30. Rd4 Ne5 31. Bxc4+ Nxc4 32. f4 Ke6 33. Bxf6 Qa3 34. Rc2 Ne3 35. Qxg6 Kd7 36. Rcd2 $18) 30. f4 Qxe4 (30... Bxe2 31. Rxe2 Qxc3 32. fxe5 Qxe5 33. Kg2 $18) (30... Qc5+ 31. Kh1 Bxe2 32. Rxe2 Qxc3 33. Re3 Qc5 34. fxe5 $18) 31. Bxf6+ Ke6 32. Bxe5 Bxe2 33. f5+ Kd7 34. Rxd6+ $18 * [/pgn]
acase
Posts: 983
Joined: Wed Mar 15, 2006 1:14 am
Location: Columbus, Ohio USA
Full name: Andrew R Case

Re: Alternate solution to ERET 084 28.Bg5!

Post by acase »

After looking through previous posts, it looks like someone else found this solution before. :oops: