Test position

[zullil]

[D]r5k1/1qrnb1p1/3p2Pp/3Pp3/pp2N1R1/3QBP2/PPP5/1K1R4 w - - 0 3

See http://masterom.blogspot.com/2011/11/hu ... dence.html

[zullil]

Critter chooses Bxh6:

Code: Select all

Critter Chess v1.2.1 64-bit SSE4
By Richard Vida, Slovakia

GTB Init OK

Hash table:  67108864 entries of 16 bytes = 1024 MB total
Eval cache:     32768 entries of  8 bytes =  256 KB total
Pawn hash :     65536 entries of 32 bytes =    2 MB total

8 cpu(s) detected

Opening book: "book.cbk" - 53436 entries [native]

setoption name Hash value 2048
Hash table: 134217728 entries of 16 bytes = 2048 MB total
setboard r5k1/1qrnb1p1/3p2Pp/3Pp3/pp2N1R1/3QBP2/PPP5/1K1R4 w - - 0 3
go infinite
 2/ 2  00:00       173  173000  +0.35 f4 Rac8
 3/ 4  00:00      1142  571000  +0.33 f4 b3 Rg2 bxc2+ Rxc2
 4/ 6  00:00      1835  917500  +0.32 f4 b3 c4 bxa2+ Kxa2
 5/ 8  00:00      7215 1030714  +0.00 f4 b3 axb3 axb3 c3 h5
 5/ 8  00:00      8845 1105625  +0.08 Rg2 Rac8 Ka1 b3 c3 bxa2 Kxa2
 6/ 8  00:00     10004 1111555  +0.08 Rg2 Rac8 Ka1 b3 c3 bxa2 Kxa2
 7/11  00:00     21564 1198000  +0.00 Rg2 b3 Nc3 bxc2+ Rxc2 a3 b3 Nc5
 8/12- 00:00     36898 1229933  -0.09 Rg2 b3 Nc3 bxc2+ Rxc2 a3 b3 Nc5
 8/13- 00:00     53640 1247441  -0.17 Rg2 b3 Nc3 bxc2+ Rxc2 a3 b3 Nc5
 8/13  00:00     56228 1277909  -0.16 Rg2 b3 Nc3 bxc2+ Rxc2 Rf8 Qe2 a3 b3 Nc5
 9/17  00:00     85076 1269791  -0.09 f4 b3 axb3 h5 Rg2 axb3 c3 Rf8 Rf2 Qa8 f5 Qa2+ Kc1 Qa1+ Qb1
10/19- 00:00    166033 1328264  -0.17 f4 b3 axb3 h5 Rg2 axb3 c3 Rf8 Rf2 Qa8 f5 Qa2+ Kc1 Qa1+ Qb1
10/21- 00:00    241167 1378097  -0.26 f4 b3 axb3 h5 Rg2 axb3 c3 Rf8 Rf2 Qa8 f5 Qa2+ Kc1 Qa1+ Qb1
10/21  00:00    268346 1419820  -0.25 f4 b3 axb3 h5 Rg2 axb3 c3 Ra2 Nd2 Nc5 Bxc5 Rxc5 fxe5 Qxd5 Qxd5+ Rxd5 exd6 Bxd6 Nxb3 Rxd1+ Kxa2
11/26  00:00    533603 1833687  -0.20 Rg2 b3 cxb3 axb3 a3 Rac8 Rf2 h5 Nc3 Rf8 f4 Nc5 Bxc5 Rxc5 Qe3 Bh4
12/27+ 00:00   1137112 2521312  -0.12 Rg2 b3 cxb3 axb3 a3 Rac8 Rf2 h5 Nc3 Rf8 a4 Nc5 Bxc5 Rxc5 Nb5 Rf6 Rh2
12/27  00:00   1300353 2585194  -0.17 Rg2 b3 c4 bxa2+ Kxa2 Rf8 Rf2 Bh4 Rh2 Qb3+ Qxb3 axb3+ Kb1 Be7 Nd2 Ra8 f4 e4
13/27  00:00   1628383 2718502  -0.17 Rg2 b3 c4 bxa2+ Kxa2 Rf8 Rf2 Bh4 Rh2 Qb3+ Qxb3 axb3+ Kb1 Be7 Nd2 Ra8 f4 e4
14/27  00:00   2582712 3111701  -0.20 Rg2 b3 cxb3 axb3 a3 Rac8 Nc3 Rf8 Rg4 Qb8 Rb4 Rb7 Rxb7 Qxb7 Bf2 h5 Ne4
15/36+ 00:01   9553183 5138882  -0.11 Rg2 b3 cxb3 axb3 a3 Rac8 Nc3 Rf8 Rg4 Qb8 Rb4 Rb7 Rxb7 Qxb7 Bf2 Bg5 a4 Qb4
15/36  00:02  11078894 5341800  -0.18 Rg2 b3 cxb3 axb3 a3 Rf8 Rf2 Rfc8 f4 Rc2 Rdf1 h5 a4 h4 Nc3 Bf6 Rxc2 bxc2+ Kxc2 exf4 Bxf4 Ne5 Bxe5 Bxe5
16/36  00:02  15925278 5633278  -0.18 Rg2 b3 cxb3 axb3 a3 Rf8 Rf2 Rfc8 f4 Rc2 Rdf1 h5 a4 h4 Nc3 Bf6 Rxc2 bxc2+ Kxc2 exf4 Bxf4 Ne5 Bxe5 Bxe5
16/38+ 00:03  21886444 6027662  -0.10 Nd2 Nf6 Rc4 a3 b3 Nxd5 Rxc7 Nxc7 Qf5 Qd5 Qd7 Nb5 Re1 Bh4 Bxh6 Nc3+ Ka1 Bf6 Be3 Rd8
16/42  00:04  25397470 6133173  -0.09 Nd2 Nf6 Rc4 Rac8 Rxc7 Qxc7 Ne4 Nxe4 Qxe4 a3 Rh1 Rf8 Bd2 axb2 f4 Bf6 Bxb4 Qd7 a3 Rc8 c4 exf4 Qxf4
17/45- 00:07  54743097 7133580  -0.17 Nd2 Nf6 Rc4 Rac8 Rxc7 Qxc7 Ne4 Nxe4 Qxe4 a3 Rh1 Rf8 Bd2 axb2 f4 Bf6 Bxb4 Qd7 a3 Rc8 c4 exf4 Qxf4
17/51  00:09  63740393 7033810  -0.24 Rg2 b3 cxb3 axb3 a3 Rf8 Rgd2 Nb6 Rf2 Na4 f4 exf4 Bxf4 Rc2 Rxc2 bxc2+ Qxc2 Nxb2 Qxb2 Qxb2+ Kxb2 Rxf4 Re1 h5 a4 h4
17/51+ 00:12  99489563 7801267  +0.00 Rh1 b3 cxb3 axb3 a3 Rf8 Bxh6 gxh6 Rxh6 Rfc8 Nc3 Rxc3 bxc3 Nc5 Qc4 Qd7 Rh5 Bf6 Qe2 Ra8
17/51  00:17 142545882 8016752  -0.23 Rgg1 Rac8 Rg2 b3 cxb3 axb3 axb3 Rf8 Rf2 Rb8 Rc2 Rxc2 Kxc2 Nf6 Nxf6+ Bxf6 Ra1 Qc8+ Kb1 Qh3 Ba7 Ra8 Ra3 Qg2 b4
18/63  00:22 183039063 7961681  -0.18 Rgg1 Rac8 Rg2 b3 cxb3 axb3 axb3 Rf8 Rf1 Rb8 Rc2 Rxc2 Kxc2 Nf6 Nxf6+ Bxf6 Rc1 h5 Kb1 Qd7 f4 h4 f5 Rc8 Qe4 Rxc1+ Kxc1
18/63+ 00:23 185665232 7961630  -0.15 Rh1 Qa6 Qxa6 Rxa6 Ng3 b3 c4 bxa2+ Kxa2 Nf6 Rgh4 Nd7 Re4 Nf6 Reh4
18/63+ 00:23 187144187 7954781  -0.06 Rh1 Qa6 Qxa6 Rxa6 Ng3 b3 c4 bxa2+ Kxa2 Nf6 Rgh4 Nd7 Re4 Nf6 Reh4
18/63  00:26 211143581 8073706  -0.21 Rh1 Rac8 Bg5 b3 Bxe7 bxc2+ Kc1 Nc5 Nxc5 Rxc5 Qf5 Qxe7 Rxa4 Re8 Qe6+ Qxe6 dxe6 Rcc8 e7 Rxe7 f4 Re6 fxe5 dxe5 Re4 Rxg6 Rxe5 Ra6 a3 Kf7 Re4 Re6 Rf1+ Rf6
19/63  00:30 243555623 8077594  -0.19 Rgg1 Rac8 Rg2 b3 cxb3 axb3 axb3 Rf8 Rf1 Rb8 Rc2 Rxc2 Kxc2 Nf6 Nxf6+ Bxf6 Rc1 h5 Kb1 Qd7 f4 h4 f5 Qb7 Bd2 e4 Qxe4 Qxb3 Qe6+ Kh8 Rc8+
19/63+ 00:31 258385767 8092510  -0.09 Rh1 Rac8 Bg5 b3 Bxe7 bxc2+ Kc1 Nc5 Nxc5 Rxc5 Qf5 Qxe7 Rxa4 Re8 Qe6+ Qxe6 dxe6 Rcc8 e7 Rxe7 f4 Re6 fxe5 dxe5 Re4 Rxg6 Rxe5 Ra6 a3 Kf7 Re4 Re6 Rf1+ Rf6
19/63+ 00:32 266205613 8101452  -0.01 Rh1 Rac8 Bg5 b3 Bxe7 bxc2+ Kc1 Nc5 Nxc5 Rxc5 Qf5 Qxe7 Rxa4 Re8 Qe6+ Qxe6 dxe6 Rcc8 e7 Rxe7 f4 Re6 fxe5 dxe5 Re4 Rxg6 Rxe5 Ra6 a3 Kf7 Re4 Re6 Rf1+ Rf6
19/63  00:34 279097330 8133628  -0.01 Rh1 Rac8 Rg2 b3 axb3 axb3 cxb3 Nf6 Nxf6+ Bxf6 Rc1 Rxc1+ Bxc1 Qd7 Rh2 Rb8 Be3 Be7 Rc2 h5 f4 Bf6 fxe5 Bxe5 Bf2 Qg4 Rc7 h4
20/63  00:38 316130594 8123826  -0.04 Rh1 Rac8 Rg2 b3 axb3 axb3 cxb3 Nf6 Nxf6+ Bxf6 Rhh2 Rf8 Rc2 Bd8 Bc1 Rxc2 Rxc2 Qd7 b4 h5 Qa6 Rxf3 b5 Rb3 Qc6 Qe7 Rc3 Rb4
21/63+ 01:15 697811892 9182581  +0.03 Rh1 Rac8 Rg2 b3 axb3 axb3 cxb3 Rb8 Bxh6 gxh6 Rxh6 Ra8 Qe3 Ra1+ Kxa1 Qa6+ Kb1 Qf1+ Ka2 Qa6+ Kb1
21/63+ 01:32 875757525 9431046  +0.12 Rh1 Rac8 Rg2 b3 axb3 axb3 cxb3 Nf6 Nxf6+ Bxf6 Rc1 Rxc1+ Bxc1 Qd7 Rh2 Rb8 Be3 Be7 Rc2 h5 f4 Bf6 fxe5 Bxe5 Bf2 Qg4 Rc4 Qg5
21/63+ 01:54 1114792936 9698658  +0.25 Rh1 Rac8 Rg2 b3 axb3 axb3 cxb3 Nf6 Nxf6+ Bxf6 Rc1 Rxc1+ Bxc1 Qd7 Rh2 Rb8 Be3 Rb4 Qc3 Rb8 Qd3
21/63  03:03 1865184429 10172752  +0.35 Rh1 Qa6 Qxa6 Rxa6 Ng3 b3 cxb3 axb3 axb3 Nb6 Bxb6 Rxb6 Rc4 Rcb7 Nf5 Bf8 Rc8 Rxb3 Nxd6 Rxb2+ Ka1 Rb8 Nf5 Rxc8 Kxb2 Rb8+ Kc3 Rb6 Kd3 Rxg6 Ke4 Kf7 Kxe5 Be7 Rc1 Bf6+
22/67+ 05:56 3768361036 10579340  +0.43 Bxh6 gxh6 Qe3 b3 cxb3 axb3 a3 h5 Qh6 Nf6 g7 Nxg4 fxg4 Qa6 Qh8+ Kf7 g5 Kg6 g8=Q+ Rxg8 Qxg8+ Kf5 Qh7+ Kf4 Nc3 Rxc3 Qf7+ Ke4 bxc3 Qe2 Qg6+ Kf4
22/67+ 08:18 5372097830 10773542  +0.52 Bxh6 gxh6 Qe3 b3 cxb3 axb3 a3 h5 Qh6 Nf6 g7 Nxg4 fxg4 Qa6 Qh8+ Kf7 g5 Kg6 g8=Q+ Rxg8 Qxg8+ Kf5 Qh7+ Kf4 Nc3 Rxc3 Qf7+ Ke4 bxc3 Qe2 Qg6+ Kf4
22/67+ 11:39 7615960845 10883193  +0.65 Bxh6 gxh6 Qe3 b3 cxb3 axb3 a3 Bg5 Rxg5 hxg5 Qxg5 Nf8 Qh6 Nxg6 Qxg6+ Rg7 Qe6+ Qf7 Nf6+ Kf8 Qxd6+ Qe7 Nd7+ Kg8 Qc6 Rd8 Nf6+ Kf7 Ne4 Rg2 d6 Qd7 Qc3 Qe6 a4 Kg6
22/67+ 17:03 11308801816 11054352  +0.84 Bxh6 gxh6 Qe3 b3 cxb3 axb3 a3 Bg5 Rxg5 hxg5 Qxg5 Nf8 Qh6 Nxg6 Qxg6+ Rg7 Qe6+ Qf7 Nf6+ Kf8 Qxd6+ Qe7 Nd7+ Kg8 Qc6 Rd8 Nf6+ Kf7 Ne4 Rg2 d6 Qd7 Qc3 Qe6 a4 Kg6
22/67+ 22:53 15291942368 11134717  +1.12 Bxh6 gxh6 Qe3 b3 cxb3 axb3 a3 Bg5 Rxg5 hxg5 Qxg5 Nf8 Qh6 Nxg6 Qxg6+ Rg7 Qe6+ Qf7 Nf6+ Kf8 Qxd6+ Qe7 Nd7+ Kg8 Qc6 Rd8 Nf6+ Kf7 Ne4 Rg2 d6 Qd7 Qc3 Qe6 a4 Kg6
22/69  30:19 20422464817 11221985  +1.36 Bxh6 b3 cxb3 axb3 a3 Rc2 Be3 Rh2 Bg1 Rh3 Rc1 Rf8 Rg3 Rh1 Qc4 Rb8 Qc6 Nb6 Qxb7 Rxb7 a4 Rb8 Bxb6 Rxc1+ Kxc1 Rxb6 Nc3

[Master Om]

Give the position 2 moves back when its white to play where correct move is g6!!.

[kgburcham]

Master Om
will you post pgn
thank you

[zullil]

Master Om
will you post pgn
thank you

This is the earlier position.
[D]r5k1/1qrnbppp/3p4/3Pp1PP/pp2N1R1/3QBP2/PPP5/1K1R4 w - - 0 23

[Master Om]

Master Om
will you post pgn
thank you

[Event "WBCCC 2011"]
[Site "ChessPlanet"]
[Date "2011.??.??"]
[Round "?"]
[White "Schachmatt"]
[Black "Omprakash"]
[Result "1-0"]
[ECO "B90"]
[Annotator "Master Om"]
[PlyCount "51"]
[EventDate "2011.??.??"]

{This was my first game of Round 1 in WBCCC 2011 which was conducted in
Chessplanet server. This particular game has given me insight that how a human
is always superior in finding deep tactics involving positional sacrifices.
This game is a prime example of that. I used Rybka Aquarium GUI and 4 single
core Houdini 1.5a x64s to analyse on my fast i7 machine.} 1. e4 c5 2. Nf3 d6 3.
d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Nbd7 9. g4 b5 10. g5
b4 11. Nd5 Nxd5 12. exd5 Bf5 13. Bd3 Bxd3 14. Qxd3 Be7 15. Rg1 $1 O-O $1 16.
O-O-O a5 $3 17. Kb1 $3 {Here f5!! is the best move. I wanted to go out of book
here. So I played aiming on the attack on the King which I always like to do.}
(17. Nd2 $3 a4 18. h4 $3 (18. Ne4 $2 Qa5 $1) (18. Rg4 $5)) 17... a4 $5 18. Nd2
Qa5 $1 19. Ne4 Rfc8 $5 20. h4 Qa6 $2 {After a long analysis I felt I should
exchange queens to my advantage.} 21. Rg4 $3 {This particular move says that
queen exchange is not feasible if you are playing for a win.} Qb7 {Now I
changed my mind!!. I now was in a mood for attack.} 22. h5 $1 {Now here My
king is in danger and I am unaware and my engines too. Rab8 or Ra5 was the
correct reaction.} Rc7 $4 {I wanted to double the rooks before playing b3. But
what a Blunder ? I analysed 2 whole days In IDeA but with LESS HUMAN
INTERACTION and found my plan to be great. None of the Engines I have
Including Rybka , Houdini, Hiarcs, Shredder, Junior , Stockfish, Fritz ,
Robbolito and family, Ippolit and family and Spark found that Rc7 was damn
good blunder. Scoe was equal. So i opened my XFCCPlay and eneterd the move Rc7.
But suddenly before confirming the move I thought of the move g6!!. What
happenes next ? Nothing becoz after 23.g6 fxg6 24.hxg6 h6? nothing is
happening and I am holding the attack??. What a mess. I confirmed Rc7??} 23. g6
$3 $18 {None of the engines find this move Interestingly. They think Rdg1?? as
best!!} fxg6 24. hxg6 h6 $4 (24... h5 $4 25. Ng3 $3 {Leaving the rook and
winning.} (25. Nxd6 $3 $18) 25... b3 26. cxb3 axb3 27. a3 Qc8 (27... Nf6 $2 28.
Rb4 $18) 28. Nxh5 Rc2 29. Rh1 $3 $18 Qa6) 25. Bxh6 $3 {Many engines don't find
it either. I saw this move when I played 24...h6? but missed 26.Qe3!! and the
coming queen sac} Qb6 {To stop Qe3 but again I found.....} (25... gxh6 $4 26.
Qe3 $3 b3 (26... Kg7 $4 27. Qxh6+ $3 Kxh6 28. g7 $3 Bh4 29. Rh1 Nf6 30. Nxf6
Rxg7 31. Rhxh4#) 27. cxb3 axb3 28. a3 Bg5 (28... Bf6 29. g7 $3 $18) 29. Rxg5 $3
$18) (25... b3 26. cxb3 axb3 27. a3 Nf6 (27... Bf6 $4 28. Bg5 (28. Bxg7 $5 Bxg7
29. Nxd6 $1 $18) (28. Nxd6 $5) 28... Bxg5 29. Nxg5) 28. Bg5 (28. Nxf6+ Bxf6 29.
Bg5 $1 $18 (29. Rb4 $3 $18) 29... e4 30. fxe4 Rc3 $5 31. Qf1 Qc8 32. Rg2 $3 $18
Rg3 33. Rc1 Qg4 34. Rxg3 Qxg3 35. Bxf6 Qxg6 36. Bc3 Qxe4+ 37. Ka1 Qg4 (37...
Qxd5 38. Bxg7 $18) 38. Qg1 $1) 28... Nxg4 29. fxg4 Bxg5 30. Nxg5 Rac8 31. Rh1
Rc1+ 32. Rxc1 Rxc1+ 33. Kxc1 Qb6 34. Ne4 Qg1+ 35. Kd2 Qb6 36. Qc3 $1 $16 {22
Mate in}) 26. Bxg7 $3 $18 {I am Happy that I lost this game. I learnt a
important lesson. Until and Unless a human guides an chessprogram to a
concrete plan they are useless. As a human I would have played g6 or may be
Bxh6 but it wasn't easy to find Qe3 which was winning. But then Engines see
the Light. I found Stockfish at Agressiveness 200 and cowardice 0 find g6!!
and the Bxh6!! sac immediately!!.} 1-0