The chess topic! (with problem to resolve! and game to play!)

[isatis]

first move rook e4?

... Re4?
f3! Rh4
g3 Rh5
Rxd4 Bxd4
Rxd4

white should win

[isatis]

no one got that pretty problem... isatis will reduce difficulty so!

here's an ending problem from one of my game against a WIM, this game was played long time ago so I messed up the thing and got it wrong ( a bit of time pressure also and some dump psychology thing): after that, rook ending become one of my force.

so black to play and win

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the thing is already well started, black a pawns up and got two past pawn, but beware it's a tad more difficult than it look

also, to understand why I messed it up, here the game, it's rollercoster all the way!

(click to show/hide)

[Event "Computer chess game"]
[Site "UTILISATEUR-PC"]
[Date "2011.12.28"]
[Round "?"]
[White "WMI"]
[Black "Isatis"]
[Result "*"]
[BlackElo "1600"]
[ECO "B45"]
[Opening "Sicilian"]
[Time "12:05:42"]
[Variation "Taimanov, Four Knights, 6.Bg5"]
[WhiteElo "2000"]
[TimeControl "7200"]
[Termination "unterminated"]
[PlyCount "67"]
[WhiteType "human"]
[BlackType "human"]

1. d4 e6 2. Nc3 d5 3. Nf3 Nf6 4. Bg5 c5 5. e4 cxd4 6. Qxd4 Nc6 7. Bb5 Bd7
8. Bxc6 bxc6 9. e5 c5 10. Qh4 d4 11. exf6 Qa5 12. fxg7 Bxg7 13. O-O dxc3
14. b3 Qb4 15. Qh5 Qe4 16. Be3 Qxc2 17. Bxc5 Qg6 18. Qxg6 hxg6 19. Rac1 Bb5
20. Rfe1 Rh5 21. Bd4 Bxd4 22. Nxd4 Rc8 23. Re3 Rd5 24. Nxb5 c2 25. Kf1 Rxb5
26. Ke2 Ra5 27. a4 Rh5 28. Kd2 Rd5+ 29. Ke2 Rf5 30. f3 Rfc5 31. h4 a5 32.
g4 Ke7 33. b4 axb4 34. Rb3 *

the final will be showed with the answer to my problem.

if you want to see those PGN files with your comp(aka without chesboard), just get trial  arena that this site: http://www.playwitharena.com/?Download:Arena_3.0

[SixThumbs]

To be honest, unless the problem is done in less then two moves I don't understand how this is supposed to work since we're not playing a real chess game and I don't understand the motives and intentions of a player just by looking at the pieces on the board.

[isatis]

the last problem is a peculiar one because it's one of my game ending problem: it's only to get a better understanding on rook ending, the yesterday one is a forced win for black, the other one is also a forced win for white, but with some blocade understanding attach on it.

it is true that a chess problem is never like a chess game, put it will increase your theorical advantage against someone because you'll finally see those tactic you missed.
the motive in the game against WIM was to draw for me and her needed to win badly, i got a bad early position and should have lost, but she made a mistake and I gain upper hand, unfortunately I didn't saw good at the end and it finished in a draw.

 
here's another of my game, against one of the finnest blind chessplayer of canada ( he was plaing without his special board)
i'm white, he's black.
for the record I played this game rather well and then busted one of my past pawn for invisible counter-play in queen side, luckily for me, my opponoment, play imprecise move making my awful a pawn better, now he is in the struggle, he need to win in order to prove himself he can still teach me something (both of those player where my chess ''coache'')
 
black to move
now I ask you a question:
do Qc7-b6 is a good move?

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if yes, put on why, if no put on why and better move.

(click to show/hide)

[Event "Saint Jean ferme 2010-2011"]
[Site "?"]
[Date "2011.??.??"]
[Round "?"]
[White "Isatis"]
[Black "Blind chess player"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "1600"]
[BlackElo "1700"]
[Annotator ""]
[PlyCount "63"]

1. Nf3 d5 2. c4 e6 3. b3 Nf6 4. g3 Bd6 5. Bb2 dxc4 6. bxc4 O-O 7. Bg2 Bd7 8.
O-O Bc6 9. d4 Nbd7 10. Nc3 Bxf3 11. Bxf3 c6 12. Qb3 Rb8 13. Rab1 Qc7 14. Ba3
Bxa3 15. Qxa3 a6 16. d5 exd5 17. cxd5 Ne5 18. d6 Nxf3+ 19. exf3 Qd7 20. Ne4
Nxe4 21. fxe4 Rfd8 22. Rfd1 Qc8 23. d7 Rxd7 24. Rxd7 Qxd7 25. Qxa6 g6 26. Qa7
Qc8 27. e5 b5 28. Qc5 Qe6 29. a4 Qd7 30. a5 Qc7 31. a6 Qb6 $4 32. a7 1-0

this game was played in the same tournament than the last one against WIM

[Paul]

Don't think it is clever because then the white pawn on a6 can just keep advancing and threaten the tower while ignoring Black's queen exchange offering. White loses then of course his old queen, but gets a new one shortly after and kills Black's tower. The tower advantage is pretty deadly then in the endgame. The advanced pawn on e5 is good for White too.

[isatis]

Don't think it is clever because then the white pawn on a6 can just keep advancing and threaten the tower while ignoring Black's queen exchange offering. White loses then of course his old queen, but gets a new one shortly after and kills Black's tower. The tower advantage is pretty deadly then in the endgame. The advanced pawn on e5 is good for White too.

boom got it, that was one of the funniest finish I made : a pawn going all the way from a2 to a7 without interruption and winning!

29. a4 Qd7 30. a5 Qc7 31. a6 Qb6 $4 32. a7 1-0

hey hey even if it was because of my opponoment error it's still fun!

[Paul]

Isn't Black fucked anyway? I mean even without sending Queen to b6.

[isatis]

starting position:

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bah... yes in a theorical way, but as this is a game with time and because we are human he could have resisted and even possibely draw with move like Ra8 followed by Ra7 and here here's white going to go with loooooong boring way of the kingside majority with f4 and such while watching for those two connected past pawn.

 As we know that rook endgame are drawish when all pawn on one side, as black i would try to exchange my two connected past pawn for white one (the a one) and exchange queen leading to this peculiar extremely drawish rook endgame.

the winning is more diffficult than it seem, I must create another past pawn in order to win, this can be done by f4-f5-e6 BUT black can play play h5 and i'm in trouble because the way is longer now, and I can't play g4 rigth away (after black plays 32... Ra7) because of a beautiful pattern of perpetual check... hum, let see if you'll found that one Paul:

position after 31... Ra8 32.Ra1 Ra7 33. g4=
black to play and draw
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Like said before,my pawn majority was on kingside and it was a 4vs3 one... so two plan: a) block king side and try to exchange all piece and win a pawn, not realizable
B)  try to bring king to queen side so if he manage exchanging queen my king will be ready to jump into queenside to blockade those pawn and force the win, unfortunately black can prevent this with check so I must be very careful on how I do this.
C) try to move all those pawn on my king side with move such as h3-g4-f4-f5-e6
take a long time but black has nothing to do so go on! it will take looong (aka more chance for black to organize defense and get a draw but i had nothing better to do, and the least I can get is a draw so.)



this could have been a very good endgame, but it finished in a more dramatic way.

[Beauchamp]

cant u play KNIGHT F2 (in the first riddle) to force the checkmate in 2 moves?

[isatis]

Rxe3 no more mate (in two)

[isatis]

Christine the strawberry girl mania!

new problem! and old solution for old problem!!

Black to move and WIN!!

(at move 4 you can stop because i'll knew you knew the win!)

1 Qe3-f2     1
2                 2
3                 3
4                 4 (here play and stop)
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don't forgot those nasty past pawn you both got!

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first one: as Paul said Bf8 and mate follow no matter what black do
second one: as paul said but with two little move he forgot: Ba7 trying to attract the evil bishop, than after Ba1, Kb1(move paul forgot to mention) Bc3, Kc2 Ba1, Bd4! BxB Kd3 win because black pawn gonna be blocade and white h pawn gonna queen
third one: RxR RxR than you simply play Rd8 and if evil white bishop move than play Nf3+ and boom you got a free rook for you pesty knight!
Fourth one: many possible answer, best is : Rd8+! Ke2 Re5+ Kf2 Rd2+ Kg3 Ree2! (look at those nasty rooks on seventh rank!) Rxb4(pff rook badger don't care) e5!! (take that) Rb7+(rook badger don't give a shit) Kd8! h5 (oh deer try better plz...) Rg2+ Kh4 f6! black win (rook badgers won!)
in game I played with  stress and i miscalculated a draw after Rd5+ Ke2 Rc4! (it was a difficult win for black in fact) and as I overestimated my opposant I forced draw with Rd5 Ke2 Re5+ Kd2 Rd5+ etc...
 fifth one: simply play a7 as Paul pointed out and you win
sixth one: If black play Qc8! he force a draw after Qxa7 (we don,t want our pretty pawn in a6 to disappear) Qxg4+ Kf1 Qc4+ and if Ke1 Qc3 win rook (still draw) and if Kg1 g2 we repeat position with Qg4+

hope my little problem bring you fun (or headache or if you're like me : both!)

[isatis]

chess bump!

cause this topic need to stay in first page!
(so no one able to do last one... sad... gonna have to put easier one)

to be edited...

[Cepeshi]

Sorry, i  dont do chess, but i like to watch how you solve these 

[isatis]

Sorry, i  dont do chess, but i like to watch how you solve these 

thanks!
yes i'm a bit hyperactive when it comes to chess. which is paradoxical because I play 4-5 hours chess games in a total silence...

now, some easy problems to solve!
black to move
mat in two
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white to move mate in three

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and a last one:
white to move, mate in two
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1...Bc5!
2c6! 2 Bxe2!
3c7   3 Qh1+
4Kg3  4 Qc6
5Qxe2 5Qxc3+!
6king move 6 Qxc6

and black will win because of his past pawn( may need a tad endgame knowledge to win here but for record, blakc king is safe from perpetual and that past a pawn is a queen!)

[Tristan]

I've never had the patience to play chess.

I might not be clever enough either, but I try to ignore that fact.