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Subject: CT15 vs Ruffian Position

Author: Howard Exner

Date: 19:36:23 12/22/02

This position is from one of the SSDF Games. Ct15 played Rg1 allowing Bxa2.
After this white's position gradually fell apart into an eventual loss.
I was puzzled by this but then remembered how programmers try to deal with the
"trapped bishop" theme. ie: Bxa2 followed by b2-b3 and then the bishop capture.
However this case does not apply here for obvious reasons of the kingside being
exposed. What do other programs prefer. Rebel XP for example plays c4. Is there
an oversight here in the implementation of the trapped bishop theme?

[D] r4rk1/p1p1bppp/1p1qpn2/3bN1B1/3P3P/3B4/PPP1QPP1/2KR3R w - -

• Re: CT15 vs Ruffian Position Rex 21:51:01 12/22/02
  • Re: CT15 vs Ruffian Position Ernst Walet 04:01:02 12/23/02
• CT15 gambit never likes rg1prefers bf4 then at 15 ply C4 as rebels says robert flesher 21:17:45 12/22/02
• CT15 gambit avoids this at 15ply! strange robert flesher 20:01:39 12/22/02
  • Re: CT15 gambit avoids this at 15ply! strange Howard Exner 20:44:38 12/22/02

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