In this game Normal level sacrificed its Rook for a Bishop was it a
correct Move?

19.... Rd8xd5{116} I think if it took d5 with Pawn it there could be a
Mate by White.

Then Help Bot Sacrificed its Rook for a pawn Was that a Correct Move
by Help Bot?

26. Rc5-c6{254}

In the end game Normal had (1 Bishop with 2 pawns) Vs (4 Pawns) Still
Help Bot was able to win.


Game Played between help bot and normal at GetClub.com

--------------------------------------------------------------------------------
help bot: (White)
normal: (Black)
Game Played at: http://www.GetClub.com/Chess.html
View Recorded Game: http://www.getclub.com/playgame.php?...977&game=Chess
--------------------------------------------------------------------------------

White -- Black
(help bot) -- (normal)

1. d2-d3{12} d7-d5{0}
2. Ng1-f3{6} Nb8-c6{154}
3. Bc1-f4{22} Bc8-g4{82}
4. Nb1-d2{38} Qd8-c8{82}
5. h2-h3{56} Bg4-f3{212}
6. Nd2-f3{10} Ng8-f6{88}
7. c2-c3{46} g7-g6{140}
8. Qd1-a4{36} a7-a6{122}
9. g2-g4{112} Qc8-d7{84}
10. Qa4-b3{70} Ke8-c8{86}
11. Bf1-g2{64} Qd7-e8{82}
12. Nf3-e5{78} Bf8-g7{88}
13. Ke1-g1{96} h7-h6{170}
14. Ra1-c1{50} g6-g5{128}
15. Bf4-h2{78} Nc6-e5{106}
16. Bh2-e5{14} e7-e6{146}
17. c3-c4{30} c7-c6{122}
18. Qb3-b6{54} Qe8-e7{174}
19. c4-d5{136} Rd8-d5{116} {sacrificed its Rook for a Bishop }
20. Be5-f6{62} Qe7-f6{106}
21. Bg2-d5{16} e6-d5{130}
22. Rc1-c2{46} Rh8-e8{98}
23. Rf1-c1{44} Re8-e6{94}
24. b2-b4{50} Qf6-d4{126}
25. Rc2-c5{80} Bg7-e5{98}
26. Rc5-c6{254} b7-c6{144} {Help Bot Sacrificed its Rook for a pawn }
27. Rc1-c6{34} Re6-c6{84}
28. Qb6-c6{38} Kc8-d8{82}
29. Qc6-a6{78} Qd4-b4{180}
30. Qa6-a8{60} Kd8-e7{88}
31. Qa8-d5{18} Qb4-e1{82}
32. Kg1-g2{16} Qe1-e2{166}
33. a2-a4{86} Ke7-f8{88}
34. a4-a5{30} Be5-f4{84}
35. a5-a6{70} Bf4-e3{126}
36. Qd5-d6{52} Kf8-g8{90}
37. Qd6-b8{188} Kg8-h7{124}
38. Qb8-g3{30} Be3-d4{142}
39. Qg3-f3{30} Qe2-f3{164}
40. Kg2-f3{4} h6-h5{92}
41. Kf3-e4{6} Bd4-a7{100}
42. d3-d4{54} h5-g4{80}
43. h3-g4{4} Kh7-g7{200} {Now, Normal has (1 Bishop & 2 pawns) Vs (4
Pawns)}
44. f2-f3{100} f7-f6{180}
45. d4-d5{144} Kg7-f7{106}
46. Ke4-f5{8} Kf7-g7{86}
47. Kf5-e6{12} Kg7-h6{108}
48. Ke6-f6{26} Ba7-e3{94}
49. d5-d6{18} Be3-c5{196}
50. d6-d7{44} Bc5-b6{136}
51. Kf6-f5{46} Kh6-h7{94}
52. Kf5-g5{20} Bb6-e3{104}
53. Kg5-f6{14} Be3-b6{148}
54. g4-g5{30} Bb6-d8{194}
55. Kf6-f7{32} Bd8-g5{80}
56. a6-a7{18} Bg5-e3{104}
--------------------------------------------------------------------------------
help bot: (White)
normal: (Black)
Game Played at: http://www.GetClub.com/Chess.html
View Recorded Game: http://www.getclub.com/playgame.php?...977&game=Chess

In this game Help Bot was Lucky as Normal position was in such a
position, that it has to sacrifice its Rook for a Bishop Still it
managed to call a end Game with (Bishop + 2 Pawns) vs (4 Pawns)

It means Normal was really tough on Help Bot.

May be if Help bot plays more games we may know how many games Help
Bot can win against the Normal Level.

Bye
Sanny

Play Chess at: http://www.GetClub.com/Chess.html

It means Normal was really tough on Help Bot.

Looks to me like Help Bot outplayed Normal and won handily.

On Mar 6, 2:44 am, Sanny wrote:

In this game Normal level sacrificed its Rook for a Bishop was it a
correct Move?

Sanny, you may have missed it, but in this
game White (that was me) had a very strong
attack on the enemy King. The Rook sac'
you mentioned was necessary to fend off the
attack.


19.... Rd8xd5{116} I think if it took d5 with Pawn it there could be a
Mate by White.

Then Help Bot Sacrificed its Rook for a pawn Was that a Correct Move
by Help Bot?

Just before this sacrifice, I misjudged the
GetClub program's counterplay-- its potential
attacks on my own King. I over-reached a bit,
and rejecting lines which clearly might allow
a perpetual check, I decided to go for this sac'.


26. Rc5-c6{254}

In the end game Normal had (1 Bishop with 2 pawns) Vs (4 Pawns) Still
Help Bot was able to win.

Sounds like this help bot fellow is a very tricky
guy! :D


In this game Help Bot was Lucky as Normal position was in such a
position, that it has to sacrifice its Rook for a Bishop Still it
managed to call a end Game with (Bishop + 2 Pawns) vs (4 Pawns)


A strong chess engine like Rybka would have
beaten me easily in such a position. Two pawns
are simply not enough compensation for a Bishop.

What happened at the end was that the Bishop
got tied down stopping a passed pawn, and the
King-- well, we already know that GetClub will not
move its own King far out of a corner, no matter
what. Only because of that titanic flaw was I able
to eventually win the K & pawns vs. K & B &
pawns ending; my real threat was to trade off all
the remaining Black pawns, for a mere draw (K vs.
K & B, no pawns left).

-----------------------------------------------------------------------

So, where did I go wrong? When the program
offered up a trade of Queens I should have jumped
for joy, not played the ridiculous move Rc5.

Later on, I mistakenly thought I "had everything
covered", only to hang my e2 pawn to a Queen
check I had seen coming. Doh! At this point,
my hopes for a "pawn roller" up the middle were
smashed; all my passed pawns were isolated,
and therefore, weak. After the computer played
....Be3, I tried to finagle a series of checks which
would end in a Queen fork winning that piece,
but it wasn't quite there. That's when I knew my
only hope was the Hindenberg-sized flaw in the
program's endgame, its King-glued-to-a-corner
issue. I traded Queens and presto-- a lost (or
perhaps barely drawn) ending became a win.


-- help bot