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Subject: what can happen when a program does not know underpromotion ....

Author: Mike Byrne

Date: 22:00:35 01/27/06


FEN: [d]3r3r/Q1P1k1pp/1pq5/5b2/2B2n2/8/PP3PPP/K7 w - - 0 3

Rybka 1.01 Beta 13b:
   3	00:00	         168	0	-1.92	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+ Rd7
7.Qa3+ Kf6
   4	00:00	       1.432	0	-1.75	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+ Rd7
7.Qa3+ Kf6
   5	00:00	       1.920	0	-2.07	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+ Rd7
7.Qa3+ Kf6
   6	00:00	       5.496	0	-2.12	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+ Rd7
7.Qa3+ Kf6
   7	00:00	       6.078	49.395	-2.19	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+
Rd7 7.Qa3+ Kf6
   8	00:00	      18.030	40.666	-2.19	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+
Rd7 7.Qa3+ Kf6
   9	00:01	      45.119	42.819	-2.18	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+
Rd7 7.Qa3+ Kf6
  10	00:02	      76.395	41.021	-2.16	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+
Rd7 7.Qa3+ Kf6
  11	00:06	     316.898	48.974	-2.15	3.c8Q+ Qd7 4.Qcc7 Ne6 5.Qcxb6 Qxa7 6.Qxa7+
Rd7 7.Qa3+ Kf6 8.Qc3+ Nd4
  12	00:26	   1.465.261	56.583	-2.15	3.c8Q+ Qd7 4.Qa3+ Kf6 5.Qxd7 Rxd7 6.Qc3+
Kg6 7.a4 Nh5 8.Qe3 Rc8 9.Qxb6+ Nf6

Crafty-19.20:
   1	00:00	         858	858	-2.65	3.c8Q+ Qd7 4.Qaxd7+ Bxd7
   1	00:00	         965	965	-2.65	3.c8Q+ Qd7 4.Qaxd7+ Bxd7
   2	00:00	       1.173	1.173	-2.61	3.c8Q+ Qd7 4.Qaxd7+ Bxd7 5.Qc7
   2	00:00	       2.036	2.036	-2.61	3.c8Q+ Qd7 4.Qaxd7+ Bxd7 5.Qc7
   3	00:00	       3.654	3.654	-2.98	3.c8Q+ Qd7 4.Qcxd7+ Rxd7 5.Qa3+ Kf6 6.Qf3
   3	00:00	       4.328	4.328	-2.21	3.c8N+
   3	00:00	       4.341	4.341	-1.21	3.c8N+
   3	00:00	       4.354	4.354	+0.79	3.c8N+
   3	00:00	       5.072	5.072	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+ Nh5
7.Qxh5+
   3	00:00	       6.061	6.061	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+ Nh5
7.Qxh5+
   4	00:00	       8.000	8.000	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+ Nh5
7.Qxh5+
   4	00:00	      13.008	1.300.800	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   5	00:00	      18.377	1.837.700	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   5	00:00	      34.782	3.478.200	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   6	00:00	      60.816	2.027.200	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   6	00:00	     141.020	2.350.333	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   7	00:00	     215.608	2.395.644	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   7	00:00	     450.018	2.500.100	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   8	00:00	     630.758	2.425.992	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   8	00:01	   1.605.496	2.469.993	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   9	00:01	   2.025.240	2.469.804	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+
   9	00:03	   7.419.837	2.416.885	+M5	3.c8N+ Kf6 4.Qe7+ Kg6 5.Bf7+ Kh6 6.Qh4+
Nh5 7.Qxh5+




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