Author: Renze Steenhuisen
Date: 00:34:19 04/05/04
Go up one level in this thread
On April 02, 2004 at 07:57:32, Tord Romstad wrote:
>[D]r1b2rk1/pp4bp/2p3p1/4q2n/NQPN1p1P/1P5n/P3PPB1/2BRRK2 b - - bm f3; id
>ECM.1438";
>
>In this position from the ECMGCP suite, Gothmog wants to play Nxf2, which looks
>rather convincing to me. However, f3 is listed as the only solution. Do both
>moves win?
>
>Tord
clearing hash tables
time surplus 0.00 time limit 12166:40 (12166:40)
depth time score variation (1)
1 0.00 -1.72 1. ... Re8
1-> 0.01 -1.72 1. ... Re8
2 0.01 -- 1. ... Re8
2 0.01 -1.23 1. ... Re8 2. e4 fxe3 3. Rxe3
2-> 0.01 -1.23 1. ... Re8 2. e4 fxe3 3. Rxe3
3 0.01 -1.29 1. ... Re8 2. Qc5 Bg4 3. Qxe5 Bxe5
3 0.02 -1.38 1. ... Qf6 2. Bxh3 Bxh3+ 3. Kg1 Rad8
3-> 0.02 -1.38 1. ... Qf6 2. Bxh3 Bxh3+ 3. Kg1 Rad8
4 0.03 -- 1. ... Qf6
4 0.03 -0.98 1. ... Qf6 2. Nf3 Qe6 3. Rd6
4 0.04 -1.05 1. ... a5 2. Qc3 Rd8 3. Bxh3 Bxh3+
4. Qxh3 Rxd4 5. Rxd4 Qxd4
4-> 0.07 -1.05 1. ... a5 2. Qc3 Rd8 3. Bxh3 Bxh3+
4. Qxh3 Rxd4 5. Rxd4 Qxd4
5 0.07 -- 1. ... a5
5 0.09 0.05 1. ... a5 2. Qc3 f3 3. Bxf3 N5f4 4.
Bxf4 Nxf4
5 0.14 -1.08 1. ... Qf6 2. Nf3 a5 3. Qd6 Qe6 4.
Qxe6+ Bxe6
5-> 0.22 -1.08 1. ... Qf6 2. Nf3 a5 3. Qd6 Qe6 4.
Qxe6+ Bxe6
6 0.28 -0.73 1. ... Qf6 2. Nf3 Re8 3. Bb2 Qe6 4.
e4 fxe3 5. Bxg7 Kxg7 6. fxe3
6-> 0.75 -0.73 1. ... Qf6 2. Nf3 Re8 3. Bb2 Qe6 4.
e4 fxe3 5. Bxg7 Kxg7 6. fxe3
7 0.90 -0.68 1. ... Qf6 2. Nf3 Re8 3. Bb2 Qe6 4.
Bxg7 Nxg7 5. e4 fxe3 6. fxe3
7 1.73 -0.74 1. ... a5 2. Qc5 Bg4 3. Bb2 Rfd8 4.
Rd3 Qd6 5. Qxd6 Rxd6 6. Bxh3 Bxh3+
7. Rxh3 Bxd4 8. Bxd4 Rxd4
7 2.64 -0.81 1. ... Rf7 2. Qc3 c5 3. Nb5 Qe8 4.
Qf3 a6 5. Bxh3 Bxh3+ 6. Qxh3 axb5 7.
cxb5 Qxb5
7-> 3.25 -0.81 1. ... Rf7 2. Qc3 c5 3. Nb5 Qe8 4.
Qf3 a6 5. Bxh3 Bxh3+ 6. Qxh3 axb5 7.
cxb5 Qxb5
8 3.86 -0.51 1. ... Rf7 2. Qc3 c5 3. Nb5 Qe8 4.
Qf3 a6 5. Nd6
8 4.90 -0.54 1. ... a5 2. Qc3 f3 3. exf3 Qg3 4.
Re2 Qxh4 5. Nc5
8 5.76 -0.59 1. ... Qf6 2. Nf3 Qf7 3. Bb2 Bxb2 4.
Nxb2 Qf6 5. Rd2 Re8
8-> 9.79 -0.59 1. ... Qf6 2. Nf3 Qf7 3. Bb2 Bxb2 4.
Nxb2 Qf6 5. Rd2 Re8
9 11.36 -0.59 1. ... Qf6 2. Nf3 Qf5 3. Qd6 Re8 4.
Rd3 Bf8 5. Nd4 Qg4
9 18.87 -0.61 1. ... Rf7 2. Rd3 Qf6 3. Nf3 Bf5 4.
Bb2 Qe6 5. Nd4 Bxd4 6. Rxd4
9-> 30.87 -0.61 1. ... Rf7 2. Rd3 Qf6 3. Nf3 Bf5 4.
Bb2 Qe6 5. Nd4 Bxd4 6. Rxd4
10 42.05 -0.53 1. ... Rf7 2. Nf3 Qe8 3. e4 Bg4 4.
Rd3 Re7 5. e5 Rd8 6. Rxd8 Qxd8
10 1:46 -0.54 1. ... Qc7 2. Bf3 Bf6 3. Bxh5 gxh5
4. Nf3 Qg7 5. c5 Be6 6. Bxf4 Bxh4 7.
Nxh4 Nxf4
10-> 2:13 -0.54 1. ... Qc7 2. Bf3 Bf6 3. Bxh5 gxh5
4. Nf3 Qg7 5. c5 Be6 6. Bxf4 Bxh4 7.
Nxh4 Nxf4
11 2:59 -0.62 1. ... Qc7 2. Qc5 Rf7 3. Nf3 Bf5 4.
Bb2 b6 5. Qd6 Re8 6. Ng5 Qxd6 7. Rxd6
11-> 4:30 -0.62 1. ... Qc7 2. Qc5 Rf7 3. Nf3 Bf5 4.
Bb2 b6 5. Qd6 Re8 6. Ng5 Qxd6 7. Rxd6
12 6:42 -0.52 1. ... Qc7 2. Nf3 Bg4 3. Bb2 Bxb2 4.
Nxb2 Rad8 5. Nh2 Bf5 6. Qc3 Qg7 7.
Qxg7+ Kxg7 8. Bxh3 Bxh3+ 9. Kg1 Rxd1
10. Rxd1
12-> 15:13 -0.52 1. ... Qc7 2. Nf3 Bg4 3. Bb2 Bxb2 4.
Nxb2 Rad8 5. Nh2 Bf5 6. Qc3 Qg7 7.
Qxg7+ Kxg7 8. Bxh3 Bxh3+ 9. Kg1 Rxd1
10. Rxd1
13 18:32 -0.41 1. ... Qc7 2. Nf3 Bg4 3. Bb2 Rad8 4.
Bxg7 Qxg7 5. Bxh3 Bxh3+ 6. Kg1 Rxd1
7. Rxd1 Re8 8. Qd2 Qe7 9. Nc3
13 40:41 -0.52 1. ... Bf6 2. Rd3 Nxf2 3. Kxf2 f3 4.
exf3 Qh2 5. f4 Bxd4+ 6. Rxd4 Bh3 7.
Rg1 Qg3+ 8. Ke2 Bxg2 9. Kd1
13-> 62:58 -0.52 1. ... Bf6 2. Rd3 Nxf2 3. Kxf2 f3 4.
exf3 Qh2 5. f4 Bxd4+ 6. Rxd4 Bh3 7.
Rg1 Qg3+ 8. Ke2 Bxg2 9. Kd1
14 77:24 -0.50 1. ... Bf6 2. Nf3 Qe8 3. e4 fxe3 4.
Bxe3 Qf7 5. Bc5 Re8 6. Rxe8+ Qxe8 7.
Qe1 Qf7 8. Qe3 Bg4 9. Bxa7 Re8
14-> 128:54 -0.50 1. ... Bf6 2. Nf3 Qe8 3. e4 fxe3 4.
Bxe3 Qf7 5. Bc5 Re8 6. Rxe8+ Qxe8 7.
Qe1 Qf7 8. Qe3 Bg4 9. Bxa7 Re8
15 171:05 -0.51 1. ... Bf6 2. Nf3 Qe6 3. Qd6 Qg4 4.
Bb2 Qg3 5. Bd4 Bf5 6. e4 Rad8 7. Qc5
Bxd4 8. Qxf8+ Kxf8 9. fxg3 Nxg3#
15 280:05 ++ 1. ... f3!!
15 325:11 -2.49 1. ... f3 2. Nxf3 Qg3 3. Qc5 Bg4 4.
Rd3 b6 5. Nxb6 axb6 6. Qxb6 Rxa2 7.
Qc5 Qc7 8. Rd6 Qb7
15-> 360:03 -2.49 1. ... f3 2. Nxf3 Qg3 3. Qc5 Bg4 4.
Rd3 b6 5. Nxb6 axb6 6. Qxb6 Rxa2 7.
Qc5 Qc7 8. Rd6 Qb7
16 403:26 ++ 1. ... f3!!
16 447:04 -2.97 1. ... f3 2. Nxf3 Qg3 3. Qc5 Bg4 4.
Rd3 Rae8 5. Qxa7 Bxf3 6. Rxf3 Rxf3
7. exf3 Rxe1+ 8. Kxe1 Qxg2 9. Qa8+
Bf8 10. Bh6 Qxf2+ 11. Kd1 Qxf3+ 12.
Kc2 Qe4+ 13. Kb2
16-> 772:04 -2.97 1. ... f3 2. Nxf3 Qg3 3. Qc5 Bg4 4.
Rd3 Rae8 5. Qxa7 Bxf3 6. Rxf3 Rxf3
7. exf3 Rxe1+ 8. Kxe1 Qxg2 9. Qa8+
Bf8 10. Bh6 Qxf2+ 11. Kd1 Qxf3+ 12.
Kc2 Qe4+ 13. Kb2
17 891:13 -3.01 1. ... f3 2. Nxf3 Qg3 3. Qc5 Bg4 4.
Rd3 Rae8 5. Qxa7 Bxf3 6. Rxf3 Rxf3
7. exf3 Rxe1+ 8. Kxe1 Qxg2 9. Qa8+
Bf8 10. Bh6 Qxf2+ 11. Kd1 Ng7 12. Qxb7
Qxa2 13. Bxg7 Bxg7
17 1078:30 3/45* 1. ... Nxf2
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