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Subject: counting positions, consider both legal and legal but impossible

Author: Dann Corbit

Date: 13:24:26 05/28/99


Transparent pawns:
4k3/8/8/PPPPPPPP/pppppppp/8/8/4K3 w - -

You can't get there from here:
4k3/Pp6/Pp6/Pp6/Pp6/Pp6/Pp6/4K3 w - -
rnbqkbnr/pppppppp/8/8/4B3/8/PPPPPPPP/RNBQK1NR w KQkq -

Simultaneous check:
rnbqk1nr/ppppp2p/5ppb/8/8/5PPB/PPPPP2P/RNBQK1NR w KQkq -

Illegal approach:
8/8/8/3Kk3/8/8/8/8 w - -

Parity Error:
rn1qk1nr/ppp2ppp/1b6/2bpp3/3PP3/3BB3/PPP2PPP/RN1QK1NR w KQkq -


What other categories are there?



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