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Chess engine: Mayhem 7.2 and NNUE (Windows,Android and Linux)

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Mayhem - UCI chess engine, Author: Toni Helminen
Rating CEDR=2961

v.7.2
Analysis fix: Full week now
Some improvements / simplifications / speedups

Rating old version 
Mayhem 6.9                   : 3119.8      28.5      71   40.1%
Mayhem 6.2                   : 2927.7       7.0      36   19.4%
Mayhem 6.6                   : 2926.3      13.5      40   33.8%
Mayhem 6.8                   : 2887.7      36.5      82   44.5%
Mayhem 6.1                   : 2860.8      25.5      76   33.6%
Mayhem 5.9                   : 2844.4      28.0      78   35.9%
Mayhem 5.7                   : 2751.1      78.5     151   52.0%
Mayhem 6.7                   : 2746.3      10.5      72   14.6%
Mayhem 6.3                   : 2739.5      10.0      22   45.5%
Mayhem 5.8                   : 2735.5      44.5     111   40.1%



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