Hannibal - a unique program

[reflectionofpower]

[d]8/1b1qr1k1/pQ4p1/1p1pprNp/1P3p1P/2PP1P2/1P2R1P1/4R1K1 w - - 0 1


Hannibal 1.4bx64 makes the move 38)g3!! This was the move that blew the game open. I was playing against CM9K. StockfishMZ is the only other program I have that makes this move!

I always had a feeling about Hannibal months ago as I knew it made some unique moves.

I recommend this program for analyzing to find something "different" in games that other engines do not consider.

[noctiferus]

My Hiarcs13.2 :

1.Qd4 Qc7 2.g4 hxg4 3
.fxg4
+/- (0.85) Depth: 20/53 00:01:32 112mN
1.g3
+/- (0.86) Depth: 20/53 00:02:06 161mN
1.g3
+/- (1.02) Depth: 20/53 00:02:36 200mN
1.g3 Qc6 2.Qxc6 Bxc6 3.gxf4 Rxf4 4.Rxe5 Rxe5 5.Rxe5 Rxh4 6.Re6 Bb7 7.Rd6 Bc8 8.Rxd5 Rf4 9.Kg2 Rf8 10.d4 Bf5 11.Kg3
+/- (1.35) Depth: 20/55 00:04:17 353mN

(, 13.09.2014)

[reflectionofpower]

My Hiarcs13.2 :

1.Qd4 Qc7 2.g4 hxg4 3
.fxg4
+/- (0.85) Depth: 20/53 00:01:32 112mN
1.g3
+/- (0.86) Depth: 20/53 00:02:06 161mN
1.g3
+/- (1.02) Depth: 20/53 00:02:36 200mN
1.g3 Qc6 2.Qxc6 Bxc6 3.gxf4 Rxf4 4.Rxe5 Rxe5 5.Rxe5 Rxh4 6.Re6 Bb7 7.Rd6 Bc8 8.Rxd5 Rf4 9.Kg2 Rf8 10.d4 Bf5 11.Kg3
+/- (1.35) Depth: 20/55 00:04:17 353mN

(, 13.09.2014)

Komodo 8 did find it in 31 seconds I forgot to add. This move I would let go 30 seconds initially, if u let it go longer your program might find it but I just posted this to show you Hannibal's unique of finding moves and fast.

Deep HIARCS 14 WCSC at 6 cores found it in 0:22 seconds.

[jdart]

Nice position. Arasan takes about 80 seconds to find this on a quad.

--Jon

[reflectionofpower]

Nice position. Arasan takes about 80 seconds to find this on a quad.

--Jon

The game was even steven but the KING engine because of it's inclination for activity started off with h5 and the game went downhill from there. I told the other operator that is was not a good move as it weakened his kingside position.

This was the position before 27)...h5

[d]2r2r1k/1b5p/p2p2p1/1p1qp3/1P3pNQ/3P1P2/1PP3PP/2R1R1K1 b - - 0 27

[reflectionofpower]

Nice position. Arasan takes about 80 seconds to find this on a quad.

--Jon

What would you say Arasan's style is? Pro's/Con's?

[jdart]

The style has probably changed over the many versions I have released, but currently: Arasan has pretty good king safety scoring. It will attack if given a chance but it rarely makes speculative sacs. This game was something of an exception:

[pgn]
[Event "ACCA WCRCC 2014"]
[Site "chessclub.com"]
[Date "2014.07.19"]
[Round "?"]
[White "Arasan 17.3"]
[Black "crafty"]
[Result "1-0"]
[ECO "B66"]
[WhiteElo "2647"]
[BlackElo "2541"]
[Annotator "Dart, J."]
[PlyCount "159"]
[EventDate "2014.??.??"]
[TimeControl "1500+4"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O h6 {This looks harmless but is not the safest move, as the game will
show.} (8... Be7) (8... Bd7) 9. Nxc6 bxc6 10. Bf4 d5 11. Qe3 Be7 12. Be2 O-O
13. h4 $5 Ne8 $6 $146 ({most recent top-level games went} 13... Nd7) ({also
possible is} 13... Re8) 14. Kb1 Nd6 $6 (14... f5 $5) 15. Bxh6 $3 {White will
get excellent compensation for the sac, although there is no immediate win.}
gxh6 16. Qxh6 Bf6 17. Rd3 Bg7 18. Rg3 Ne8 19. e5 Qc7 20. h5 $5 {very
aggressive: White just ignores the attack on e5.} (20. f4 $142) 20... Qxe5 21.
f4 Qd4 22. Qg5 Qf6 23. Qxf6 Nxf6 24. h6 Ne8 25. Na4 Rb8 26. Kc1 f6 27. Nc5 a5 {
Now White will get the sacrificed material back, and then some.} 28. Bh5 Rb5
29. Nb3 ({For a while Arasan was preferring} 29. Nd7 Bxd7 30. Bxe8 Rxe8 31.
Rxg7+) 29... Rb7 30. Nxa5 Rc7 31. Bg6 e5 32. f5 Bxh6+ 33. Rxh6 Ng7 34. Rgh3
Nxf5 35. Rh8+ Kg7 36. R8h7+ Kxg6 37. Rxc7 Nd4 38. Rh1 c5 39. Rxc5 Bf5 40. Nc6
Nxc6 41. Rxc6 Ra8 42. a3 Ra4 43. g3 Ra5 44. Rh8 Kg7 45. Rb8 Ra7 46. Rcb6 Kg6
47. Rf8 Bg4 48. Rfxf6+ Kg5 49. Rg6+ Kh5 50. c3 Rh7 51. Rg8 Rf7 52. Rbg6 Bf3 53.
Rg5+ Kh6 54. Rxe5 Be4 55. c4 Bh7 56. Re6+ Kh5 57. g4+ Kh4 58. Rh8 Kxg4 59. cxd5
Rc7+ 60. Kd2 Bf5 61. Re1 Bh7 62. Rf8 Rd7 63. Rg1+ Kh5 64. Rh8 Kh6 65. Rh1+ Kg6
66. R8xh7 Rxd5+ 67. Ke3 Rd8 68. R1h6+ Kg5 69. Rh8 Rd1 70. Rh1 Rd7 71. Rf8 Re7+
72. Kd4 Kg6 73. Rf2 Re6 74. Rg1+ Kh7 75. Rh2+ Rh6 76. Rxh6+ Kxh6 77. Ke5 Kh5
78. Kf4 Kh6 79. Kf5 Kh7 80. Kf6 1-0
[/pgn]

[reflectionofpower]

The style has probably changed over the many versions I have released, but currently: Arasan has pretty good king safety scoring. It will attack if given a chance but it rarely makes speculative sacs. This game was something of an exception:

[pgn]
[Event "ACCA WCRCC 2014"]
[Site "chessclub.com"]
[Date "2014.07.19"]
[Round "?"]
[White "Arasan 17.3"]
[Black "crafty"]
[Result "1-0"]
[ECO "B66"]
[WhiteElo "2647"]
[BlackElo "2541"]
[Annotator "Dart, J."]
[PlyCount "159"]
[EventDate "2014.??.??"]
[TimeControl "1500+4"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O h6 {This looks harmless but is not the safest move, as the game will
show.} (8... Be7) (8... Bd7) 9. Nxc6 bxc6 10. Bf4 d5 11. Qe3 Be7 12. Be2 O-O
13. h4 $5 Ne8 $6 $146 ({most recent top-level games went} 13... Nd7) ({also
possible is} 13... Re8) 14. Kb1 Nd6 $6 (14... f5 $5) 15. Bxh6 $3 {White will
get excellent compensation for the sac, although there is no immediate win.}
gxh6 16. Qxh6 Bf6 17. Rd3 Bg7 18. Rg3 Ne8 19. e5 Qc7 20. h5 $5 {very
aggressive: White just ignores the attack on e5.} (20. f4 $142) 20... Qxe5 21.
f4 Qd4 22. Qg5 Qf6 23. Qxf6 Nxf6 24. h6 Ne8 25. Na4 Rb8 26. Kc1 f6 27. Nc5 a5 {
Now White will get the sacrificed material back, and then some.} 28. Bh5 Rb5
29. Nb3 ({For a while Arasan was preferring} 29. Nd7 Bxd7 30. Bxe8 Rxe8 31.
Rxg7+) 29... Rb7 30. Nxa5 Rc7 31. Bg6 e5 32. f5 Bxh6+ 33. Rxh6 Ng7 34. Rgh3
Nxf5 35. Rh8+ Kg7 36. R8h7+ Kxg6 37. Rxc7 Nd4 38. Rh1 c5 39. Rxc5 Bf5 40. Nc6
Nxc6 41. Rxc6 Ra8 42. a3 Ra4 43. g3 Ra5 44. Rh8 Kg7 45. Rb8 Ra7 46. Rcb6 Kg6
47. Rf8 Bg4 48. Rfxf6+ Kg5 49. Rg6+ Kh5 50. c3 Rh7 51. Rg8 Rf7 52. Rbg6 Bf3 53.
Rg5+ Kh6 54. Rxe5 Be4 55. c4 Bh7 56. Re6+ Kh5 57. g4+ Kh4 58. Rh8 Kxg4 59. cxd5
Rc7+ 60. Kd2 Bf5 61. Re1 Bh7 62. Rf8 Rd7 63. Rg1+ Kh5 64. Rh8 Kh6 65. Rh1+ Kg6
66. R8xh7 Rxd5+ 67. Ke3 Rd8 68. R1h6+ Kg5 69. Rh8 Rd1 70. Rh1 Rd7 71. Rf8 Re7+
72. Kd4 Kg6 73. Rf2 Re6 74. Rg1+ Kh7 75. Rh2+ Rh6 76. Rxh6+ Kxh6 77. Ke5 Kh5
78. Kf4 Kh6 79. Kf5 Kh7 80. Kf6 1-0
[/pgn]

15)Bh6! is something I would do without even thinking about it. I played someone yesterday and did the same thing ... Bxh6 and was even pushing the h pawn to boot. I messed uo the attack but I was winning and then lost it in the end but computer analysis showed my sac was sound.

I always got the gist that your program was pretty solid all the way around.