A chess library for PHP offering move validation, common formats, multiple variants, UCI engine support, explanation of chess positions, and image recognition.
The chess explanations attached have demonstrated to be not too good when describing the connectivity of the pieces.
Figure 1. 8/1p4kp/5np1/p7/5R2/1PQ3P1/P4PKP/3r1q2 w - -
Figure 2. 8/5k1p/8/p2Pb3/1p6/3q1P2/PPR4P/5KR1 w - -
With the current connectivity evaluation, the white pieces are totally better connected in Figure 1 while the white pieces are significantly better connected in Figure 2. However, that is not the case. The connectivity of the pieces should be expressed in terms of loosely pieces. Another word for this term is hanging pieces: "Unprotected and exposed to capture. A hanging piece may also be said to be en prise."
The chess explanations attached have demonstrated to be not too good when describing the connectivity of the pieces.
With the current connectivity evaluation, the white pieces are totally better connected in Figure 1 while the white pieces are significantly better connected in Figure 2. However, that is not the case. The connectivity of the pieces should be expressed in terms of loosely pieces. Another word for this term is hanging pieces: "Unprotected and exposed to capture. A hanging piece may also be said to be en prise."
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