R+N vs R


PGN Reader
[Event "White to play and win"] [Site "?"] [Date "2011.??.??"] [Round "?"] [White "Villeneuve, A."] [Black "0401.00"] [Result "1-0"] [SetUp "1"] [FEN "2r2k2/5N2/R5K1/8/8/8/8/8 w - - 0 0"] [PlyCount "41"] [EventDate "2011.??.??"] [SourceDate "2000.07.25"] {After Centurini 1850.} 1. Kf6 $3 {With bR on b8, this move would not succeed, the black king running away on e8.} (1. Nd6 $2 {(idem on 1 Ng5) } Rc1 $1) 1... Rb8 (1... Kg8 2. Ng5 $8 {(consider Kg6 then Nh7 and Ra7)} Kf8 ( 2... Rf8+ 3. Kg6 $8 Rf1 4. Ra8+ $8 Rf8 5. Ra1 $8 Rf2 {(...Rb8 Nh7!)} 6. Ne4 $8 {: Centurini ; text on 11th move}) 3. Ne6+ $1 (3. Nh7+ $2 Ke8 $8) (3. Re6 $2 Rc1) 3... Kg8 {(otherwise Ra7)} 4. Kg6 $8 Re8 5. Rb6 $3 {Z [#] (or on c6, or on d6)} ( 5. Ng5 $6 Kf8 6. Kf6 $8 Kg8 7. Ne6 $8 Rc8 8. Kg6 {: the bR must be driven out to have Re6}) 5... Ra8 (5... Kh8 $6 6. Kf7) 6. Ng5 $1 Kf8 (6... Re8 7. Nh7) 7. Re6 $8 {[#]} Rc8 8. Nh7+ $8 Kg8 9. Re7 $1 Rc6+ 10. Nf6+ $8) (1... Re8 2. Ng5 $1 { (as in the above variation, the bK cannot go to e8)} Rb8 3. Ne6+ $1 Kg8 (3... Ke8 4. Ra7 $1 Rb7 5. Ng7+ $1) 4. Kg6 $1 ({or} 4. Ra7 $1 Rb6 5. Re7 $1 ) 4... Re8 5. Rb6 $3 {Z as already seen}) (1... Ke8 2. Nd6+ $8) (1... -- {if White had to play here :} 2. Nd6 $8 Rd8 3. Rb6 $1 {(Z : compared to the sequence 1...Kg8, the wK-bK-bR-wN box has been moved by one column !)} Ra8 (3... Kg8 4. Ne4 $8 Ra8 5. Ng5 $8) 4. Rb7 $8 Rd8 5. Nf5 Ra8 6. Rf7+ $8) 2. Ne5 $3 {[#]The "threat" 2 Nd7+ seems illusory, all black moves eliminating the fork. But Black is curiously short of space, so that it reappears, doubled by another.} (2. Nd6 $2 Kg8 $8 3. Kg6 Kf8 $8 4. Ra7 Rb1 $1) (2. Ng5 $2 Ke8 $8 3. Ra7 Rb1 $1) 2... Rd8 (2... Rc8 3. Ra7 $8 { (no check on c6)} (3. Re6 $2 Rd8 $3 {ZZ [#]} 4. Ra6 {(Kg6 ...Rd1!)} Ke8 $8) 3... Kg8 (3... Ke8 4. Re7+ $1) 4. Kg6 $8 Kf8 5. Nd7+ $8 Ke7 6. Nb6+ $8) (2... Ke8 3. Re6+ $8 {followed by a fork}) (2... Kg8 3. Kg6 $8 Rd8 (3... Kf8 4. Nd7+ $8) 4. Nd7 $1) (2... Re8 3. Nd7+ $1 Kg8 4. Kg6 $1 Rd8 5. Nf6+ $1 Kf8 6. Ra7 $1) 3. Re6 $3 {ZZ [#]} Kg8 (3... Ra8 4. Nd7+ $8 Kg8 5. Kg6 $8 Rc8 (5... Kh8 6. Kf7 $1) 6. Re7 $1 Rc6+ 7. Nf6+ $8) ({On} 3... Rc8 {there is also} 4. Ng6+ $1 Kg8 5. Ne7+ $8) (3... Rd1 4. Ng6+ $8) 4. Nf7 $3 {[#]A necessary comeback.} (4. Kg6 $6 Kf8 5. Rf6+ $6 Ke8 6. Re6+ $8 Kf8 7. Kf6 $8 Kg8 8. Nf7 $8) 4... Rf8 (4... Ra8 5. Kg6 $1 {(threatens Ng5-h7-f6)} Kf8 6. Ng5 $8) 5. Re7 $8 Rb8 (5... Kh7 6. Re4 $1) 6. Ng5 $8 {The Knight has now returned to the orthodox ways.} Rf8+ ( 6... Rb6+ 7. Ne6 $8 Kh8 (7... Rb8 8. Kg6 {idem}) 8. Kg6 $8 Rb8 9. Rd7 $1 Kg8 ( 9... Rg8+ 10. Kh6 $8 Rb8 11. Nf4 $1 Kg8 12. Ng6 $1 Rb7 13. Ne7+ $8) 10. Rd6 $8 Rc8 11. Ng5 $1 Kf8 12. Re6 $1 {followed by Nh7+ and Re7}) 7. Kg6 $8 Rf1 8. Re3 $1 { Transposing in the Centurini's main study.} (8. Re4 $1 {idem}) 8... Rf2 9. Re1 $3 Rf4 10. Ra1 $1 Rf2 11. Ne4 $3 {[#]} Rg2+ 12. Kf6 $8 Kh8 13. Rb1 $1 {Z} Rg4 (13... Rg7 14. Ng5) 14. Ng5 $8 Rf4+ 15. Kg6 $8 Kg8 (15... Rf8 16. Nf7+ Kg8 17. Nh6+ Kh8 18. Rh1) 16. Ne6 $3 {[#]} Rg4+ 17. Kf6 $8 Kh8 18. Rb8+ $1 (18. Kf7 $1) 18... Rg8 19. Nf8 $3 {[#]} Rg1 20. Ng6+ $1 Kh7 21. Rh8# $1 {Model mat.} 1-0

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