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Revision as of 18:07, 9 March 2015
PolaChess
The PolaChess tournament is the ongoing PolaFlow chess tournament. It is a Round-robin, 10 minutes time, 0 increment tournament played during coffee time. Both a PolÆlO rating and centipawns are computed. The person in charge is Carlos.
PolÆlO
An Elo is computed, with a $K=32$ constant and with 5 provisional ratings for players not part of the PolaChess pool (we assumed established ratings for everybody who joined the tournament at $t=0$, which is not a problem as their ratings will converge but we need to take into account occasional games as provided by visitors). Specifically, the $K$ factor is scaled by $3/\big(4(5-i)\big)$ (i.e., down) for the established player and by $3-(i-1)/2$ (i.e., up) for his opponent for the first $i<5$ games of the new player, after which point $K=32$ again. Explicitly, the $K$ constants for the new player go:
- 96, 80, 64, 48, and 32 thereafter
while it goes, for the established player:
- 6, 8, 12, 24, and 32 thereafter
Games
Carlos (1000) vs Camilo (1000)
Fabrice (1000) vs David (1000)
Carlos (1016) vs Stefan (1000)
Pablo (1000) vs Fabrice (1016)
Santiago (1000) vs Carlos (1031)
Camilo (984) vs Stefan (985)
David (984) vs Carlos (1046)
23 February (2015) — Blunderful.
Stefan (1001) vs Pablo (985)
Santiago (985) vs David (1003)
Pablo (970) vs David (1018)
David (1032) vs Fabrice (1031)
Fabrice (1047) vs Stefan (1016)
The end was not recorded as it was too fast for the transcript (Pablo). Apparently an illegal move was made with a rook. The game ended in checkmate in a race to flag for time.
David (1016) vs Stefan (1001)
Fabrice (1062) vs Carlos (1027)
Pablo (956) vs Camilo (968)
Camilo wins on time. Interesting, 26. Qd6+?! is not a blunder (only a mistake). The next move, however, is a proper queen panick moment.
Stefan (1018) vs Fabrice (1076)
Games to come
Based on Computer's random sampling. Games that cannot take place are either skipped of flushed to the end.
Decided at the last minute on people's availability.