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Subject: Re: Is the sacrifice correct? Ruffian 2.1.0 and Ruffian 2.0.2

Author: Chessfun

Date: 08:54:02 02/22/04

Go up one level in this thread


On February 22, 2004 at 04:02:32, Kurt Utzinger wrote:

>[D]rnb1k2r/pp1pp1bp/6p1/2pn2B1/8/2NB1N2/PqPQ2PP/1R2K2R w Kkq - 0 11
>Reti,R - Euwe,M (Amsterdam 1920)
>Position before 11.Nxd5!! (or ?!)
>
>
>[Event "Amsterdam m"]
>[Site "Amsterdam"]
>[Date "1920.??.??"]
>[Round "2"]
>[White "Reti, Richard"]
>[Black "Euwe, Max"]
>[Result "1-0"]
>[ECO "A83"]
>[PlyCount "33"]
>[EventDate "1920.??.??"]
>
>1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. f3 exf3 6. Nxf3 Bg7 7. Bd3 c5 8. d5
>Qb6 9. Qd2 Qxb2 10. Rb1 Nxd5 11. Nxd5 Qxb1+ 12. Kf2 Qxh1 13. Bxe7 d6 14. Bxd6
>Nc6 15. Bb5 Bd7 16. Bxc6 bxc6 17. Qe2+ 1-0


New game
rnb1k2r/pp1pp1bp/6p1/2pn2B1/8/2NB1N2/PqPQ2PP/1R2K2R w Kkq - 0 1

Analysis by Ruffian 2.1.0:
1.Rxb2 Bxc3 2.Bh6 Bxd2+ 3.Nxd2 Nb4 4.Be2 N8c6 5.a3 Nd5 6.0-0 e5
  -+  (-1.80)   Depth: 11/28   00:00:06  4601kN
1.Rxb2 Bxc3 2.Bh6 Bxd2+ 3.Nxd2 Nc6 4.0-0 Ndb4 5.Bb5 a6 6.Bc4 Ne5 7.Be2
  -+  (-1.74)   Depth: 12/31   00:00:08  11097kN
1.Rxb2 Bxc3 2.Qxc3 Nxc3 3.0-0 Rf8 4.Bd2 Na4 5.Rbb1 Nb6 6.Ng5 Rxf1+ 7.Rxf1 c4
8.Be4
  -+  (-1.78)   Depth: 13/32   00:00:18  28702kN
1.Rxb2 Bxc3 2.Qxc3 Nxc3 3.0-0 Rf8 4.Bd2 Na4 5.Rbb1 Nb6 6.Bh6 Rf7 7.Ng5 Rxf1+
8.Bxf1 Nc6 9.Nxh7
  -+  (-1.83)   Depth: 14/37   00:00:46  75578kN
1.Nxd5
  -+  (-1.43)   Depth: 14/38   00:01:42  164516kN
1.Nxd5 Qxb1+ 2.Kf2 Qxh1 3.Nc7+ Kd8 4.Bxe7+ Kxc7 5.Qf4+ Kb6 6.Qd6+ Nc6 7.Qxc5+
Kc7 8.Qd6+ Kb6 9.Qc5+
  =  (0.00)   Depth: 14/38   00:01:55  184608kN
1.Nxd5 Qxb1+ 2.Kf2 Qxh1 3.Nc7+ Kd8 4.Bxe7+ Kxc7 5.Qf4+ Kb6 6.Qd6+ Nc6 7.Qxc5+
Kc7 8.Qd6+ Kb6 9.Qc5+
  =  (0.00)   Depth: 15/41   00:02:50  278465kN

New game
rnb1k2r/pp1pp1bp/6p1/2pn2B1/8/2NB1N2/PqPQ2PP/1R2K2R w Kkq - 0 1

Analysis by Ruffian 2.0.2:
1.Rxb2 Bxc3 2.Bh6 Bxd2+ 3.Nxd2 Nb4 4.Bc4 d5 5.Bb5+ N8c6 6.0-0 e5 7.Bg7
  -+  (-1.95)   Depth: 11/27   00:00:06  4747kN
1.Rxb2 Bxc3 2.Bh6 Bxd2+ 3.Nxd2 Nc6 4.0-0 Ndb4 5.Bc4 d5 6.Bb5 e5 7.a3 a6
  -+  (-1.95)   Depth: 12/30   00:00:09  10346kN
1.Rxb2 Bxc3 2.Bh6 Bxd2+ 3.Nxd2 Nb4 4.Be2 N8c6 5.a3 Nd5 6.0-0 Nd4 7.Bc4 e6
  -+  (-1.97)   Depth: 13/32   00:00:15  25981kN
1.Nxd5
  -+  (-1.60)   Depth: 13/35   00:00:23  39000kN
1.Nxd5 Qxb1+ 2.Kf2 Qxh1 3.Nc7+ Kd8 4.Bxe7+ Kxe7 5.Qg5+ Kd6 6.Nb5+ Kc6 7.Qf4 Qxh2
8.Qxh2 c4 9.Bxc4 Kc5 10.Nc7 Nc6 11.Nxa8 Kxc4
  µ  (-0.90)   Depth: 13/38   00:00:27  46434kN
1.Nxd5
  ³  (-0.55)   Depth: 14/38   00:00:45  76415kN
1.Nxd5 Qxb1+ 2.Kf2 Qxh1 3.Nc7+ Kd8 4.Bxe7+ Kxc7 5.Qf4+ Kb6 6.Qd6+ Nc6 7.Qxc5+
Kc7 8.Qd6+ Kb6 9.Qc5+
  =  (0.00)   Depth: 14/38   00:01:05  109243kN
1.Nxd5 Qxb1+ 2.Kf2 Qxh1 3.Nc7+ Kd8 4.Bxe7+ Kxc7 5.Qf4+ Kb6 6.Qd6+ Nc6 7.Qxc5+
Kc7 8.Qd6+ Kb6 9.Qc5+
  =  (0.00)   Depth: 15/42   00:02:07  212592kN

Sarah.






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