www.arves.org - FIDE 1st World Cup 2010

Studies awarded for the FIDE 1st World Cup 2010.

[Event "1.p World Cup 2010"] [Site ""] [Date "2010.02.17"] [Round ""] [White "Akobia=I"] [Black ""] [Result "*"] [SetUp "1"] [FEN "1BNk2B1/8/8/p7/4b3/6p1/2r5/1K3R2 w - - 0 1"] [PlyCount "19"] [EventDate "2010"] [SourceDate "2005.01.24"] 
 {Above a head White threat of operation of battery bB-bR hangs. It can end with accident for white. It is not possible to extinguish this battery by 1. Nd6, or Rf4. Proceeding from this, White undertake attack to black king.} 1. Rf8+ (1. Nd6 $2 Rf2+ 2. Nxe4 Rxf1+ 3. Kb2 g2 $11) (1. Rf4 $2 Rxc8+ 2. Rxe4 Rxb8+ $11) 1... Kd7 2. Nb6+ $1 (2. Nd6 $2 Bg6 $1 (2... Bd3 $2 3. Rf7+ Kd8 4. Bh7 $1 $18) 3. Ka1 $1 Rc1+ (3... g2 4. Ba7 Rc1+ $11) 4. Ka2 $1 (4. Kb2 $2 Rb1+ 5. Ka2 Ke7 6. Re8+ Bxe8 7. Kxb1 g2 $11) 4... g2 5. Ba7 g1=Q 6. Bxg1 Rxg1 7. Nc4 $1 (7. Nb7 $2 Ke7 8. Rc8 Bf7+ $11) 7... Ke7 8. Ra8 Bf5 $1 { -sight on a exchange square a6!} 9. Ra7+ (9. Bd5 Be6) 9... Kf6 10. Ra6+ Ke7 11. Bd5 Re1 $1 {(All forces on point a6!)} 12. Ra7+ Kf6 $1 13. Rf7+ Kg6 { - with inevitable 14...Be6, exchange of one of white pieces and a draw final.}) 2... Ke7 $1 {Now it is possible to reduce force of battery} (2... Kc6 3. Bd5+ $18) 3. Rf4 { The precipitate check 3.Rf7 +? Only improved a position of the black king:} (3. Rf7+ $2 Ke8 4. Rf4 Re2+ 5. Rxe4+ Rxe4 6. Nc4 g2 7. Ba7 Rg4 8. Bd5 g1=Q+ $11) 3... Re2+ {Can not keep the battery -} (3... Bg6 4. Bd6+ {(Nd5)++} 4... Kxd6 5. Rf6+ $18) (3... Bd3 4. Nd5+ Ke8 5. Bf7+ Kd7 6. Rd4 g2 7. Bh2 $18) 4. Rxe4+ Rxe4 5. Nd5+ $1 ({It appears the capture of a pawn g3 is impossible, because wN on b6. Here is only a try} 5. Bxg3 $5 Rb4+ $1 $11 (5... Rg4 $2 6. Nd5+ Kf8 7. Bd6+ Kxg8 8. Nf6+)) 5... Kf8 $1 {The study centre. Why at once not to capture a dangerous pawn g3? - see (the line 6.Bxg3 below)} 6. Bd6+ $1 ({Thematic try} 6. Bxg3 $5 Kg7 $3 {zz} (6... Kxg8 $2 7. Nf6+ {FORK}) (6... Rg4 $2 7. Bd6+ Kxg8 8. Nf6+ {FORK}) (6... Re2 $2 7. Bh7 $1 {wins, Blackcan not to save Pa4}) 7. Bh7 $2 Rg4 $1 (7... Kxh7 $2 8. Nf6+ {FORK-4}) 8. Be5+ Kxh7 9. Nf6+ Kg6 10. Nxg4 Kf5 $1 $11) 6... Kg7 $1 (6... Kxg8 7. Nf6+ {FORK}) 7. Bxg3 {zz} 7... a4 $1 {By this wa iting move Black hope to force to lose white pieces coordination. - than win the locked wBg8  At white there is a unique move of king} (7... Kxg8 8. Nf6+ { FORK}) (7... Rg4 8. Be5+ $1 Kxg8 9. Nf6+ {FORK}) (7... Re8 8. Bh7 $1 Kxh7 (8... Rd8 9. Be4 $18) 9. Nf6+ {FORK}) (7... Re2 8. Nf4 {Releasing a way to the Bg8}) (7... Rd4 8. Be5+ $18) (7... Rc4 8. Be6 $18) 8. Ka1 $3 {All other steps of white breaks coordination of forces.The strongest move it seems Bh7, but it is only the thematic try:.} (8. Bh7 $5 Rg4 $1 (8... Kxh7 $2 9. Nf6+ {FORK}) 9. Bf2 (9. Bb8 Rg1+ $1 $11 {compare with the line 9...Rg4}) 9... Rg2 $11 (9... Kxh7 $2 10. Nf6+ {FORK}) (9... Rg5 $2 10. Be4 $18)) 8... a3 $1 9. Bh7 $1 { The bishop has made the job well!} 9... Rd4 {The sense of 8.Ka1} (9... Rg4 10. Bb8 Rg1+ {now is possible because wK has unblocked the square b1.} 11. Bb1 $1 $18 {Compare with the line 9.Bb8 in thematic try 8.Bh7!?}) 10. Be5+ {wins. .. e study! A surprising position of the mutual zugzwang, based on beautiful domination, excellent play of kings (Kg7!! And, especially, Ka1!!), witty struggle on all space of a board - from the first to last horizontal, from a vertical "and" to "h" /\ the Unconditional winner of the Cup of the world-2010!" Judge, O.Pervakov} *