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LearningLemming, (Learning Lemming)
a private, experimental and Chess Engine Communication Protocol compliant chess engine [1] by Sam Hamilton with focus on Learning techniques, and along with Edsel Apostol's Twisted Logic, ancestor of Hannibal.

The book learning feature in LearningLemming is not applied during the game. Instead, parts of the game to learn from are saved to a file, and then a separate learning program does a post-mortem analysis and saves off conclusions for LearningLemming to use in future games. The other type of learning Sam played with in LearningLemming is parameter tuning, and a rough form of this is used in the Hannibal development process [2].
Lemmus lemmus [3]

Tournament Play

In the 2006-2009 timeframe, LearningLemming played three ACCA Americas' Computer Chess Championship, the ACCA 2006, the ACCA 2007 (third place, even leading after four rounds [4]), and the ACCA 2008, further two ACCA World Computer Rapid Chess Championship, the WCRCC 2007 and WCRCC 2009, and two CCT Tournaments, CCT9 and CCT10.

Selected Games

WCRCC 2009, round 12, LearningLemming - Rybka [5]
[Event "WCRCC 2009"]
[Site "ICC"]
[Date "2009.08.16"]
[Round "12"]
[White "Learning Lemming"]
[Black "Rybka"]
[Result "0-1"]
 
1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Be2 Bb7 
9.O-O Be7 10.e4 b4 11.e5 bxc3 12.exf6 Bxf6 13.bxc3 c5 14.dxc5 O-O 15.Ba3 Be7 
16.Qd4 Qc7 17.c6 Bxa3 18.cxd7 Bc5 19.Qd3 h6 20.Rfd1 Rad8 21.Rab1 Bd5 22.Qb5 
Bd6 23.c4 Bc6 24.Qh5 Ba4 25.Rdc1 Rxd7 26.c5 Be7 27.Qg4 Bc6 28.Rb3 Rd5 29.Rbc3 
Bg5 30.R1c2 Rfd8 31.g3 Bf6 32.Ra3 Rd1+ 33.Bxd1 Rxd1+ 34.Kg2 g5 35.Qh5 Qb7 
36.Re2 Qb1 37.Kh3 Rh1 38.Ne1 Rxe1 39.Rxe1 Qxe1 40.f3 Be7 41.Qxf7+ Kxf7 42.Kg4 
Kg6 43.Kh3 Qf1+ 44.Kg4 h5# 0-1

See also


Forum Posts


External Links


References

  1. ^ Private Engine List from Ron Murawski's Computer-Chess Wiki
  2. ^ Re: Hannibal 1.1- Learning Lemming 0.44T - x64 by Sam Hamilton, CCC, June 24, 2011
  3. ^ Norway Lemming, Lemmus lemmus, Brehms Tierleben, Small Edition 1927, Norway lemming from Wikipedia
  4. ^ 2007 ACCA Pan Am Champs after 4 Rounds by Charles Roberson, CCC, October 28, 2007
  5. ^ Learning Lemming vs Rybka 2009 from chessgames.com

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