2013 Chess960 Dropout Tournament, Round 1

Start Position: 285
60days-Countdown
This game is being played under Chess960 rules. Click the 'info' tab for more information.
1. f4 Nb6
Clock started on 1/7/2013
2. Bxb6 axb6 3. Nb3 f5 4. c3 Nd6 5. g3 Ra8 6. e3 Rxa2 7. Nd3 g6 8. Bc2 Nc4 9. Nb4 Ra8 10. e4 e6 11. e5 d6 12. Bd3 Na5 13. Nxa5 bxa5 14. Ra1 dxe5 15. fxe5 Qxe5 16. Nc6 Qd5 17. Qxd5 exd5 18. Rxa5 Rxa5 19. Nxa5 c5 20. Kc2 Bxa5 21. b4 cxb4 22. cxb4 Bxb4 23. Rf4 Bd6 24. Ra4 Kc7 25. Kc3 Be6 26. Bb1 Rb8 27. Ba2 Kc6 28. Kd4 Kb5 29. Bb3 Rc8 30. Ra2 Rc5 31. Rc2 Rxc2 32. Bxc2 Kb4 33. Bd1 b6 34. Ke3 Kc4 35. Be2+ Kc5 36. d4+ Kb4 37. Kd2 Bd7 38. Bf3 Kc4 39. Ke3 b5 40. Be2+ Kc3 41. Bxb5 Bxb5 42. Kf3 Kxd4 43. h4 Ke5 44. g4 fxg4+ 45. Kxg4 h5+ 46. Kg5 Bd3 47. Kh6 Bf5 48. Kg7 d4 49. Kf7 d3 50. Ke8 d2 51. Kd8 d1=Q
Conditional Moves: 52. Ke8 Qd5 53. Kd8 Qa8#
Black win

Many chess masters valued the challenge of playing chess with a non-standard setup as a way to break out of the opening play doldrums. Chess960 (Fischer Random Chess) plays like Standard Chess with the exception of a randomly generated opening setup of pieces behind the 8 pawns. The game is quite popular and played even by top chess grandmasters, like Svidler or Leko.

 

1. The rules

Most of the standard chess rules are in place. The only exceptions are:

  • pieces are randomly shuffled on the first/last rank (the only restrictions are that bishops have opposite colors and that the king must be somewhere between the rooks, black setup mirrors white),
  • castling rules are generalised to accomodate varying initial setup.

Example initial setup (one of the 960 possible):

rkbnrnqb/pppppppp/8/8/8/8/PPPPPPPP/RKBNRNQB

Castling rule is easy to memorize: after castling, king and rook move to the squares they would land in standard chess (after O-O we have Kg1 and Rf1, after O-O-O Kc1 and Rd1). Typical chess restrictions apply - none of the castling pieces moved, source and destination squares are empty, king path is free of any pieces and not under opponent attack. SchemingMind interface shows castling icons whenever castle is possible.

O-O looks fantastic in the above setup, doesn't it? And require some work to prepare... But in setups with Kf1 and Rg1, one can play O-O as the first move of the game.

Except those, all standard chess rules apply, be it en-passant, pawn promotion, stalemate, or whatever. Once both sides castled there is no difference between chess960 and standard chess game (although the middlegame positions are sometimes unique - thanks to nontypical development of pieces or pawn structures).

 

2. Why play it?

Escaping long, well known, opening lines of standard chess is obvious advantage of chess960. We are again in the world where one must work from the very beginning of the game. It is fun, it is also valuable training for standard chess players (learning to think during opening stage helps when one meets unexpected line in usual chess).

Less known feature is that chess960 frequently creates middlegame configurations (from pawn structures, to piece layouts) rarely or never met in standard chess, giving way to nontypical combinations. Fun, but also good training to search for new tactical patterns.

 

3. Tips and tricks

Below a few tips for people starting chess960.

1. This is normal chess. The middlegame and endgame knowledge applies as-is. Basic opening principles (develop, castle, claim center, be active) also apply. Memorize castling rule quoted above, and you can play.

2. Spend some time studying initial setup. Are there diagonals you can quickly claim? Which side do you expect to castle? What are undefended or poorly defended pawns and squares? Which pieces can be difficult to develop?

3. Remember about activating all your pieces. There are chess960 setups, in which some pieces are difficult to develop (for example, imagine setup with queens on a1 and a8, especially if there are bishops on h1 and h8). It can pay off to sac some material, but to bring all forces into the battle quickly.

4. Avoid chess960 errors. One can see solid chess players hanging pieces, allowing for major forks, or even blundering a mate in one or two in chess960 games (see for instance cruel miniature , quick knight mate or devastating fork at move 3). The reason is that pieces are differently organised than in normal chess. Some patterns can be similar to known chess setups, and instinctively seen so, but allow for an attack, which in normal chess would not work. Those examples prove also, that one must be alert from the very beginning of the game.

5. Recognize weak squares. Everybody know about weaknessess of f2 and f7 in standard chess, in chess960 (depending on setup) there can be even squares which are not defended at all. Spot them, exploit them, defend them.

 

4. Instructive games

Selected example games:

Develop to win - white picks better development plan and manages to organise threatening attack before black coordinates his forces

The Queen problem - interesting game, which in particular illustrates the problem with developing queen in some setups; note also phantasy castling at move 14 and interesting endgame,

Castling on the first move - also, interesting example of development in rather difficult configuration (knights in corners)

Another early castling - plus just another example of interesting development problems (note difficulties black face with activating the queen, and both sides have with h bishops)

More links to instructive chess960 games played on schemingmind, are welcome. In particular, it would be nice to find:

more examples of exploration of weak square(s)

illustration of sacrificing some material to activate pieces,

closed position with pawn structure not likely to happen in standard chess,

 

5. Position number

The position number is a number from range 1 to 960, which in unique way describes the initial position. Exact algorithm (initially described by R.Scharnagl in his German book about the game) is not usually important, but if you are interested, see chapter 5 on this page. In short: if you write the position number in binary notation, then the lowest two bits encode position of light-square bishop, next two bits the position of dark-square bishop, then the rest of pieces are encoded.

 

6. Valuable links

See this journal article for a few commented games and some links to Chess960 sites.

links to chess960 sites are welcome


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