Last Modified 14:35 23 November 2009

Arimaa

Bot Design and Implementation

Our actual bot, bot_weiserP2, is based on the bot_sampleC bot provided at the arimaa home page. At this time we are improving the evaluation function.
Actual features:

# of pieces
# of frozen pieces
rabbit advancement
# of dominant pieces at the center board
# of pieces at traps
# of pieces next to a trap
mobility (available spaces)
camel hides from the enemy elephant
immobilized elephant 20051004
control traps with locally dominant pieces 20051004
early rabbit advance was aparently a bug. 20051004
1 and 2 steps to win. 20051005
Penalty for advancing rabbits early in the game 20051005
Use half his reserve time if he need to. (at least complete 2ply search) 20051005

Future features:

one move to win
one move to capture
# of owned traps
fork
fence
immobilized dominant piece other than elephant
Camel strategy.At this time weiser's camel is just a decoration on the board. It just runs away from the enemy elephant.
Improve control traps with locally dominant pieces
Check on reversible moves (avoid them)

Glitches:

Time Out BUG, FIXED (we think).
He gives away a more valuable piece to try to save a les valuable piece. ej game 19881
When trying to unfreeze a friendly piece he blocks it him self. ply 32w in game 19890

Any comments please send us an email at: ntroncos[at]alumnos[dot]inf[dot]utfsm[dot]cl and nbarriga[at]alumnos[dot]inf[dot]utfsm[dot]cl. Presentation

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