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Subject: To Vasik Rajlich: Problem with Rybka w32 Preview 1.0 and CA 7.1

Author: F. Jermann

Date: 06:36:02 01/03/06


Hello,

I can use Rybka with Chess Assistant 7.1 in infinite analysis mode without
problems. CA 7.1 writes a log file on engine communication:

State: Analyzing
Response: reState
Response: reNPS
Variation: ce -3; acd 3; acn 13086; acms 181; pv b1c3
Response: reVariant
Response: reNPS
Variation: ce 5; acd 3; acn 14152; acms 191; pv e4e5
Response: reVariant
Response: reNPS
Response: reNPS
Variation: ce 12; acd 4; acn 15274; acms 201; pv e4e5
Response: reVariant
Response: reNPS
Response: reNPS
Variation: ce 0; acd 5; acn 30323; acms 381; pv e4e5 f6d5
Response: reVariant
Response: reNPS
Response: reNPS
Variation: ce 2; acd 6; acn 6458; acms 601; pv e4e5 f6e4 d2d3
Response: reVariant
Response: reNPS
Response: reNPS
Variation: ce 14; acd 7; acn 14359; acms 842; pv e4e5 f6d5 b1c3 d5b6
Response: reVariant
Response: reNPS
Response: reNPS
Variation: ce 8; acd 8; acn 25828; acms 1353; pv e4e5 f6d5 b1c3 d5b6 d1h5
Response: reVariant
Response: reNPS
Response: reNPS
Variation: ce 10; acd 9; acn 55929; acms 3175; pv e4e5 f6d5 b1c3 d5c3 d2c3 b8c6
g1f3
Response: reVariant
Response: reNPS
Response: reNPS
Variation: ce 13; acd 10; acn 160926; acms 8643; pv e4e5 f6e4 d2d3 e4c5 d3d4
c5a6 g1f3
Response: reVariant
Response: reRootMove
Response: reNPS
Move: e4e5
State: Stopped
Response: reState
Stopped
Response: reData
Engine is unloaded

However, CA 7.1 automatic analysis mode uses Rybka in another way... and Rybka
immediately crashes (itself and CA 7.1). The log file only contains:

Start thinking
r1bqkb1r/pppp1ppp/8/4n3/4P1n1/2NP4/PPP3PP/R1BQKBNR w KQkq -
Time to control: 60000
Moves to control: 60
State: Thinking
Response: reState

Does this say anything useful to you? Do you think this is a problem of the
currently not fully implemented UCI protocol? I hope, in future I can use my
favorite engine with my favorite analysis tool - Chess Assistant.

BTW, all other UCI engines seem to have no problem with the CA communication.

Thanks in advance,
Frank Jermann



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