level 11
溯叔叔_
楼主
Dear WCA Community,
This notice is in regards to the Perry Open 2013 competition held in Distrito Federal in Mexico on May 25, 2013 with Uriel Gayosso Ruiz acting as WCA delegate. During the first round of the 3x3x3 speed solve competition, competitor Julio Martín Gómez Telésforo (2011TELA01) recorded the following average of five solves: (4.41), (18.90), 14.71, 18.68, 16.53.
The IAC completed its own independent investigation of this incident and the competitor (2011TELA01) confirmed to the IAC that his solution for the 4.41 second solve was:
x2 U' R D F2 R L B' D2 L U' B2 U F' L' U2 D' B' U' U B' + J-permutation
where a J-permutation is a case that can be solved with R U2 R' U' R U2 L' U R' U' L.
As reported to the WCA by the IAC on May 31, 2013, the competitor insisted that he solved the cube in this manner. The scramble of the solve in question as reported by the WCA delegate is:
F2 D2 B2 F2 R F2 L' D2 B U B2 R' F2 U' F' D' L D2
The competitor reports his solution to the above scramble to be:
x2 + [moves improvised by competitor] + J-permutation
By applying a J-permutation before the scrambling sequence, we have the following sequence:
(R U2 R' U' R U2 L' U R' U' L) x2 (F2 D2 B2 F2 R F2 L' D2 B U B2 R' F2 U' F' D' L D2) x2
The solution to this state produces a sequence of moves that solves the original scramble into a J-permutation.
The optimal solution found by Cube Explorer for this sequence is:
U' R D F2 R L B' D2 L U' B2 U F' L' U2 D' B2 (17f*)
and the improvised moves reported by the competitor are:
U' R D F2 R L B' D2 L U' B2 U F' L' U2 D' B' U' U B'
which is identical to the optimal solution found with some minor adjustments made at the end.
The solution presented here is suspicious in several regards. First, the solve does not match previous descriptions of the solution made by the competitor after the competition. Second, the solve matches output from an optimal solving software, does not resemble any known solving method, and does not have any logical flow. Finally, the solve proposed does not seem amenable to executing in under 4.41 seconds, as claimed by the competitor, due to multiple turns on each face of the cube. Given this information, we find that the competitor did not solve the WCA generated scramble for the round in question in 4.41 seconds by either the solution presented here or by any other solution.
The WCA finds that competitor Julio Martín Gómez Telésforo (2011TELA01) has maliciously exploited the WCA and the organizers of Perry Open 2013 and declares that the 3x3x3 speed solve in 4.41 seconds is invalid and will be recorded as a DNF. Due to the dishonesty of the competitor, and the attempted exploitation of Perry Open 2013 and the WCA by the competitor, the WCA prohibits the competitor Julio Martín Gómez Telésforo (2011TELA01) from participating in any WCA events through December 31, 2015.
The WCA urges all WCA delegates and organizers to remain vigilant in their tournament operations.
The WCA thanks the IAC for its diligent work, and to the community members who supported the IAC's investigation.
Regards,
Tyson Mao
World Cube Association Board Member
Supported by: Ron van Bruchem, Sébastien Auroux, Timothy Reynolds, and the WCA DelegatesTyson Mao
Board Member
United States of America
World Cube Association
2013年06月07日 17点06分
1
This notice is in regards to the Perry Open 2013 competition held in Distrito Federal in Mexico on May 25, 2013 with Uriel Gayosso Ruiz acting as WCA delegate. During the first round of the 3x3x3 speed solve competition, competitor Julio Martín Gómez Telésforo (2011TELA01) recorded the following average of five solves: (4.41), (18.90), 14.71, 18.68, 16.53.
The IAC completed its own independent investigation of this incident and the competitor (2011TELA01) confirmed to the IAC that his solution for the 4.41 second solve was:
x2 U' R D F2 R L B' D2 L U' B2 U F' L' U2 D' B' U' U B' + J-permutation
where a J-permutation is a case that can be solved with R U2 R' U' R U2 L' U R' U' L.
As reported to the WCA by the IAC on May 31, 2013, the competitor insisted that he solved the cube in this manner. The scramble of the solve in question as reported by the WCA delegate is:
F2 D2 B2 F2 R F2 L' D2 B U B2 R' F2 U' F' D' L D2
The competitor reports his solution to the above scramble to be:
x2 + [moves improvised by competitor] + J-permutation
By applying a J-permutation before the scrambling sequence, we have the following sequence:
(R U2 R' U' R U2 L' U R' U' L) x2 (F2 D2 B2 F2 R F2 L' D2 B U B2 R' F2 U' F' D' L D2) x2
The solution to this state produces a sequence of moves that solves the original scramble into a J-permutation.
The optimal solution found by Cube Explorer for this sequence is:
U' R D F2 R L B' D2 L U' B2 U F' L' U2 D' B2 (17f*)
and the improvised moves reported by the competitor are:
U' R D F2 R L B' D2 L U' B2 U F' L' U2 D' B' U' U B'
which is identical to the optimal solution found with some minor adjustments made at the end.
The solution presented here is suspicious in several regards. First, the solve does not match previous descriptions of the solution made by the competitor after the competition. Second, the solve matches output from an optimal solving software, does not resemble any known solving method, and does not have any logical flow. Finally, the solve proposed does not seem amenable to executing in under 4.41 seconds, as claimed by the competitor, due to multiple turns on each face of the cube. Given this information, we find that the competitor did not solve the WCA generated scramble for the round in question in 4.41 seconds by either the solution presented here or by any other solution.
The WCA finds that competitor Julio Martín Gómez Telésforo (2011TELA01) has maliciously exploited the WCA and the organizers of Perry Open 2013 and declares that the 3x3x3 speed solve in 4.41 seconds is invalid and will be recorded as a DNF. Due to the dishonesty of the competitor, and the attempted exploitation of Perry Open 2013 and the WCA by the competitor, the WCA prohibits the competitor Julio Martín Gómez Telésforo (2011TELA01) from participating in any WCA events through December 31, 2015.
The WCA urges all WCA delegates and organizers to remain vigilant in their tournament operations.
The WCA thanks the IAC for its diligent work, and to the community members who supported the IAC's investigation.
Regards,
Tyson Mao
World Cube Association Board Member
Supported by: Ron van Bruchem, Sébastien Auroux, Timothy Reynolds, and the WCA DelegatesTyson Mao
Board Member
United States of America
World Cube Association
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