White vs Black #1
1092648
[White "White"]
[Black "Black #1"]
[FEN "2br1rk1/1pp1bppp/p1p2n2/4p1B1/1q2P3/2NP1NP1/PPP2PBP/R1Q1R2K w - - 0 0"]
{Why is this position illegal ?} *
http://chessmicrobase.com/microbases/13571/games/1092648?token=1d25xyn4
White vs Black #2
1093224
[White "White"]
[Black "Black #2"]
[FEN "r3r1k1/pppR1p1p/n1n2qpQ/1B5b/4P3/P1P1BP2/1PP1N1PP/R4RK1 w - - 0 0"]
{Why is this position illegal ?} *
http://chessmicrobase.com/microbases/13571/games/1093224?token=rnzfld6o
White vs Black #3
1093226
[White "White"]
[Black "Black #3"]
[FEN "2kr3r/pp4b1/1qpN3p/5Qp1/8/P3P1P1/1PP3P1/2KR2Nn w - - 0 0"]
{Why is this position illegal ?} *
http://chessmicrobase.com/microbases/13571/games/1093226?token=b357nyxh