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)
The end was not recorded as it was too fast for the transcript (Pablo). The game ended in checkmate shortly after the last position shown.
Santiago (970) vs Camilo (983)
Shortest game so far, which left us time to play a king of the hill variation (which Camilo won, against Fabrice, by checkmate on a too daring king).
Santiago (987) vs Pablo (941)
In a raging fury against our Colombian community, Santiago proceeds to calmly walk his way back up the ladder of the tournament, methodically resisting the attacks of White who, in their traditional style, succumb to their own pressure and split out to surrender their queen on an otherwise leading position. The shat queen moment—this move of the game where Juan Pablo becomes chess-blind and positions his dame in front of a pawn, bishop or right below the roofs of a knight—occurred here on the (Friday the) 13th move. It was then just a matter of carefully moving the heavy Black artillery left around, with little but enough time left to enforce checkmate. Playing with psychology on his side, Santiago allowed himself the occasional glance through the window, à la Bobby, which was a nice touch.
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.