====== Chess - Programming - Rating - Estimate Chess Engine Playing Strength ======

===== BT Test Suites =====

Using **BT2450** and **BT2630** Test Suites can provide an estimated rating.

  * They should contain 30 positions each.
  * Enter each position into your computer, and let it think for 15 minutes (900 seconds).
  * If a position is solved, write down its solution time in seconds.
  * It does not count as a solution if the program finds, the move and then changes its mind.
  * If after finding a move, then changing its mind, then finding it again, you should use the **last** time found.
  * Any solution that is not found, score as 900 seconds.
  * Add up all the times.
  * Divide by 30.
  * Subtract the result from either 2630 or 2450.
  * The final figure is the ELO rating.

If you find all positions in the BT2630 in 0" seconds, you have 2630 ELO.

  *Same with BT2450-test-suite.

The BT2450 was too easy for the strong tactic programs, so B and T exchanged some positions and the result is the BT2630 test-suite.

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[[Chess:Programming:Rating:Estimate Chess Engine Playing Strength:BT2450|BT2450]]

[[Chess:Programming:Rating:Estimate Chess Engine Playing Strength:BT2630|BT2630]]

[[Chess:Programming:Rating:Estimate Chess Engine Playing Strength:Bratko-Kopec-Test|Bratko-Kopec-Test]]

[[Chess:Programming:Rating:Estimate Chess Engine Playing Strength:Nolot|Nolot]]

[[Chess:Programming:Rating:Estimate Chess Engine Playing Strength:Win at Chess|Win at Chess]]


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===== References =====

ELO can be calculated using [[https://github.com/michiguel/Ordo/releases|Ordo]]