Author: Robert Hyatt
Date: 21:14:15 10/22/04
Go up one level in this thread
On October 21, 2004 at 23:20:16, Jon Dart wrote:
>from a game Naum-Arasan:
>
>[D] 6q1/7k/3pQp1p/8/p5PP/P7/1P6/3K4 w - -
>
>Naum played Qxg8+, which is winning. Arasan finds this, but different versions
>take quite varying amounts of time. After the exchange, White can get an
>outside passer with b3. Black can stop this passer, but if he does so his King
>will be out of position and White can attack the remaining pawns. Crafty
>(slightly old version) took 18 seconds and ply 12 to play Qxg8+.
>
>--Jon
Don't know why it would take so long. Here is current version on a PIII/750mhz
laptop:
depth time score variation (1)
1 0.00 0.32 1. Qf5+ Kg7
1 0.00 1.56 1. Qe4+ Kg7 2. Qxa4
1-> 0.01 1.56 1. Qe4+ Kg7 2. Qxa4
2 0.02 1.56 1. Qe4+ Kg7 2. Qxa4
2 0.03 1.82 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4
2-> 0.04 1.82 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4
3 0.04 1.82 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4
3-> 0.06 1.82 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4
4 0.06 1.72 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4-> 0.08 1.72 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
5 0.08 1.82 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. Kc2
5-> 0.12 1.82 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. Kc2
6 0.13 1.84 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5
6-> 0.19 1.84 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5
7 0.21 2.10 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6
7-> 0.31 2.10 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6
8 0.33 2.08 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6
8-> 0.55 2.08 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6
9 0.59 2.40 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a7 Kb7
9-> 1.75 2.40 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a7 Kb7
10 1.81 2.46 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a7 Kb7 7. Kc2
Kxa7
10-> 4.67 2.46 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a7 Kb7 7. Kc2
Kxa7
11 4.84 2.56 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a7 Kb7 7. a8=Q+
Kxa8 8. Kc2
11-> 16.89 2.56 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a7 Kb7 7. a8=Q+
Kxa8 8. Kc2
12 17.21 2.40 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a7 Kb7 7. Kc2
d5 8. a4 Kxa7
12-> 1:08 2.40 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a7 Kb7 7. Kc2
d5 8. a4 Kxa7
13 1:08 2.40 1. Qxg8+ Kxg8 2. b3 Kf7 3. bxa4 Ke6
4. a5 Kd5 5. a6 Kc6 6. a4 Kb6 7. Kc2
d5 8. a7 Kxa7 <HT>
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