Sunday, May 20, 2012

FICS formula and logic

FICS formula supports Boolean algebra.
[ a ⇒ b ] ⇔ [ (¬a) ∨ b ] ⇔ [ (¬a) ∨ (b ∧ a) ]
In this case the rightmost expression lets us better understand the leftmost.
Example: FICS formula !chess | etime>=15 is equivalent to !chess | (chess & etime>=15). From the right(colored in green) formula is clear what the left(and right) formula will do - It will make you accessible to all !chess boards' seek advertisements(ads), plus, chess board ads those etime is equal or more then 15.

Links:
Table_of_logic_symbols, Logical_connective, Propositional_logic, Boolean_algebra_(structure), Two-element_Boolean_algebra.

Wednesday, May 9, 2012

Preparing to play chess (openings)

1. Moves
If you are going to play first move X( e.g. 1. e4), it is best to know (remember) at least one move ahead, - to know what you will respond to any of possible 20 moves (including all opponent moves that looks "foolish").
If you are playing 1. e4. It is good to know what to respond after all these moves: 1. e4 a6, 1. e4 a5, 1. e4 Na6, 1. e4 b6, 1. e4 b5, 1. e4 c6, 1. e4 c5, 1. e4 Nc6,..., 1. e4 h6, 1. e4 h5, 1. e4 Nh6.
For example if you are going to play 1.e4 to black move 1...e5, you might prepare at least one move, let's say - 2. Nf3.
2. Plans
The other side of your improved game is plan. The plan is what you are thinking by making certain moves. Moves can be "bad", but if you are thinking(or having plans), then you will achieve something. The more plans you have and the more moves satisfy them, the bigger chances that any one of your most acceptable(or realistic) plans will be successful. 3. Evaluations
The third part of the game are evaluations(or expectations, feelings etc. ).
What do you expect from what has happened? How do you feel in this position? What(and why) do you like and what you don't like in the position. Answers to these questions might help you to improve your plans and sequences of moves.
4. Experience
The more you know, the more objects you can put in your plans and the more accurate positional measures(evaluations) you can take. So you can put ending objects(to plan ending)in your calculations even in the opening.

Tuesday, May 8, 2012

chess 1. b3

1. b3
1. b3 e5
1. b3 Nf6
1. b3 d5
1. b3 d6
1. b3 c5
1. b3 f5
1. b3 b5
1. b3 b6
Handke, Florian b. 1982, German grand master.
Petrosian, Tigran L. b. 1984, Armenian grand master.

[White "Handke,F"][Black "Villegas,P"] 1. b3 d6 2. Bb2 Nd7 3. d4 Ngf6 4. Nf3 g6 5. Nbd2 Bg7 6. e4 O-O 7. Bd3 Nh5 8. g3 e5 9. O-O

[White "Handke,F"][Black "Jablonski,N"] 1. b3 e5 2. Bb2 Nc6 3. c4 Nf6 4. e3 d5 5. cxd5 Nxd5 6. a3 Bd6 7. Qc2 O-O 8. Nf3 Qe7 9. d3 f5 10. Nbd2 Bd7 11. g3

[White "Handke,F"][Black "Bok,B"] 1. b3 e5 2. Bb2 Nc6 3. c4 Nf6 4. a3 d6 5. e3 g6 6. Be2 Bg7 7. d3 O-O 8. Nd2 h6 9. b4 a6 10. Qc2 Bd7 11. Bf3 Rb8 12. Ne2 Nh7 13. O-O

[White "Handke,F"][Black "Rapport,R"] 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. c4 d5 5. cxd5 Nxd5 6. a3 Bd6 7. Qc2 O-O 8. Nf3 Qe7
9. Nc3 Nxc3 10. Qxc3 f6 11. Bc4+ Kh8 12. d3 Qe8 13. Nd2 Ne7 14. b4 Qg6 15. g3

[White "Handke,F"][Black "Gauglitz,G"] 1. b3 c5 2. Bb2 Nc6 3. Nf3 d5 4. e3 Nf6 5. Bb5 Qb6 6. c4 Bd7 7. O-O
a6 8. Bxc6 Bxc6 9. cxd5 Nxd5 10. Ne5 Nf6 11. Na3 e6 12. Rc1 Rc8 13. Nac4 Qd8 14. Nxc6 Rxc6 15. Ne5 Rc8 16. b4 Bd6

[White "Handke,F"][Black "Lentrodt,T"] 1. b3 b6 2. Bb2 Bb7 3. c4 c5 4. e3 e6 5. Nf3 Nf6 6. Be2 Be7 7. O-O O-O 8. d4 d5 9. dxc5 Bxc5 10. Nbd2 Nc6

[White "Handke,F"][Black "Skinke,K"] 1. b3 d5 2. Bb2 Nf6 3. e3 Bf5 4. f4 c5 5. Nf3 Nc6 6. Bb5 Qb6 7. Ba4 g6 8. Nc3 Rd8 9. Ne5 Bg7 10. Bxc6+ bxc6 11. Na4 Qb5
12. c4 dxc4 13. bxc4 Qb7 14. Qb3 Qc7 15. Nxc5 Ne4 16. Nxe4 Bxe4 17. Nxc6 Rd3 18. Qb4 a5 19. Nxa5 Bxb2 20. Qb5+ Qd7 21. Qb8+ Qd8 22. Qxb2 O-O

[White "Petrosian,TL"][Black "Grigoryan,Av"] 1. b3 e5 2. Bb2 Nc6 3. e3 d6 4. Nf3 f5 5. d4 e4 6. d5 Nce7 7. Ng5 Nxd5 8. Bb5+ c6 9. Qxd5 Nh6 10. Ne6 Qd7 11. Nxf8 Rxf8
12. Qd4 cxb5 13. Qxg7 Ng4 14. h3 Qxg7 15. Bxg7 Rg8 16. hxg4 Rxg7 17. Nc3 b4 18. Nb5 fxg4 19. Nxd6+ Kf8 20. O-O-O a5

[White "Petrosian,TL"][Black "Kravtsiv,M"] 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 Bd6 5. Na3 e4 6. f4 a6 7. Bxc6 dxc6 8. Nc4 O-O
9. Ne2 a5 10. a4 Bb4 11. h3 Nd7 12. Nd4 Nb6 13. Nxb6 cxb6 14. O-O Qh4

[White "Short,N"][Black "Almasi,Z"] 1. b3 d5 2. Bb2 Nf6 3. e3 c6 4. c4 Bf5 5. Be2 e6 6. Nc3 Nbd7 7. Nf3 h6 8. O-O Bd6 9. cxd5 exd5 10. d3 O-O

[White "McShane,L"][Black "Jones,G"] 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 Bd6 5. Nc3 a6 6. Bxc6 dxc6 7. Nge2 O-O 8. O-O Qe7 9. f4 Bg4 10. Qe1 Rad8

[White "Short,N"][Black "Wells,P"] 1. b3 d5 2. Bb2 c5 3. e3 a6 4. Nf3 Nc6 5. d4 Bg4 6. Be2 e6 7. O-O Nf6
8. Nbd2 Rc8 9. c4 cxd4 10. Nxd4 Bxe2 11. Qxe2 Nxd4 12. Bxd4 Bc5 13. Bxf6 Qxf6 14. cxd5 exd5 15. Nf3 O-O

[White "Short,N"][Black "Smeets,J"] 1. b3 d5 2. Bb2 c5 3. e3 Nf6 4. Nf3 Nc6 5. Bb5 Bd7 6. O-O e6 7. c4 a6 8. Bxc6 Bxc6 9. Ne5 Rc8 1/2-1/2

[White "Smirin,I"][Black "Gupta,Ab"] 1. b3 d5 2. Bb2 Nf6 3. Nf3 g6 4. c4 c6 5. e3 Bg7 6. Be2 O-O 7. O-O b6 8. Nc3 Bb7 9. d4 Nbd7 10. Rc1 Rc8 11. b4 c5

[White "Nakamura,Hi"][Black "Perkovich,Kyle A"] 1. b3 d5 2. Bb2 Nc6 3. e3 Bf5 4. Nf3 e6 5. Be2 Nf6 6. O-O Be7 7. d4 h6 8. c4 O-O 9. Nc3

[White "Sokolov,Ivan"][Black "Smeets,J"] 1. b3 d5 2. Bb2 c5 3. e3 a6 4. f4 Nc6 5. Nf3 Bg4 6. Be2 e6 7. d3 Nf6
8. Ne5 Bxe2 9. Qxe2 Nxe5 10. fxe5 Nd7 11. O-O g6 12. Qf3 Qe7 13. c4 Bg7 14. Qg3 O-O

[White "Nakamura,Hi"][Black "Simonian,H"] 1. b3 Nf6 2. Bb2 b6 3. g3 Bb7 4. Nf3 e6 5. Bg2 Be7 6. O-O O-O 7. d3 c5 8. e4 d5 9. Nbd2 d4 10. Ne1 Nc6

Saturday, May 5, 2012

Chess problems

  • Goal: make a position-problem. Conditions:
    1. Change real position (as little as possible, e.g. by removing, adding, transposing pieces) so that it would become a solvable:
      tactical
      checkmate
      stalemate
      draw by repetition
      etc
      problem.
    2. Publish these problems somewhere, e.g. post it in "problem makers" tournaments, your blogs, ebooks, or just place it in my blog comment-box, or send me by email: A. Position(e.g. fen code, (bmp) image) and problem; B. Well described problem.
    3. Your Top Ten selected positions might fight in "problem makers" tournaments where selected and all people groups will vote for them and find out the winner.

  • Goal: black starts and gets draw.
    Conditions:
    A. White is two pawns up(no more material advantage);
    B. If initial position has queens or rooks, exclude those initial positions where black can achieve draw by using only perpetual checks.
  • ---

Tuesday, May 1, 2012

Temporary collection of openings

1. e4 g5
Unrated, 10m+15s 1. e4 g5 2. d4 h6 3. f4 e6 4. fxg5 hxg5 5. Qg4 Be7 6. Nf3 Nf6 7. Qxg5 Nxe4 8. Qe5 Nf6 9. Nc3 Nc6 10. Qf4 Nh5 11. Qe4 d5 12. Qe3 Bh4+
1. g4 d5 2. Bg2 Bxg4
Unrated, 10m+15s 1. g4 d5 2. Bg2 Bxg4 3. Nc3 c6 4. d4 Nf6 5. Bf4 Nbd7 6. Nf3 Bxf3 7. Bxf3 e6 8. Rg1 g6 9. e4 dxe4 10. Bxe4 Nxe4 11. Nxe4 Bg7 12. Nd6+ Kf8 13. Rg3 Qa5+ 14. c3 Qb6 15. Qe2 Nf6 16. Rf3 Nh5 17. Bg5
1.d4 Nf6 2. c4 c5 3. d5 b5
?
1. g4 d5 2. Bg2 Bxg4 3. c4 Be6
1. g4 d5 2. Bg2 Bxg4 3. c4 Be6 4. Qb3 Qc8 5. cxd5 Bd7 6. e4 e5 7. f4 Bd6 8. Qg3 Kf8 9. fxe5 Be7 10. d4 Qd8 11. Nf3 c6 12. d6 1-0
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Unrated or unregistered games

Lots of people offer unrated and/or unregistered games.
It is OK.
Unrated games can be used for easy training: opening experimentation, etc. .
This is because usually people play unrated games more relaxed so freeing more imagination: "no rating will be changed, I can do what I want".
Unrated people are like kings - "not damaged by signs" - always "newborn", always with full undamaged dignity - always free like God - "I am not a slave of the game - I am playing now, I may not play after a moment, I may not play for a moment, I may not play for ever..."
Such freedom gives for a game more art qualities. Player can feel much more like an artist(creator, living creature) and much less like a machine(a piece of material with no moral feelings). And just imagine if we play a game with no time regulations out of Internet box...:D And let's give to this game some beautiful silence...