Popeye is a chess problem solving and testing software with strong support for fairy chess and heterodox genres. For more information cf. topic "Popeye (chess)" on http://en.wikipedia.org/
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Combination of 4 conditions (regression in 4.41) #91
Since release 4.41, Popeye doesn't find the solutions of this problem any more:
Anfangproblem
Protokoll 5576.TXT
Autor 5576 Phenix 168
Forderung h#2
Steine Weiss Ka5
Steine Schwarz Ka7 Bb7 Bc7 Bc5
bed WeisserSuperTransmutierenderKoenig
bed SchwarzerTransmutierenderKoenig
bed TurncoatCirce
bed SchwarzerOhneSchlag
[Submitted by Vaclav Kotesovec]
Since release 4.41, Popeye doesn't find the solutions of this problem any more:
Anfangproblem Protokoll 5576.TXT
Autor 5576 Phenix 168 Forderung h#2 Steine Weiss Ka5 Steine Schwarz Ka7 Bb7 Bc7 Bc5 bed WeisserSuperTransmutierenderKoenig bed SchwarzerTransmutierenderKoenig bed TurncoatCirce bed SchwarzerOhneSchlag
EndeProblem
Release 4.37 gives:
5576 Phenix 168 2008
1 . . . . . . . . 1 | | +---a---b---c---d---e---f---g---h---+ h#2 1 + 4 SchwarzerTransmutierenderKoenig SchwarzerOhneSchlag TurncoatCirce WeisserSuperTransmutierenderKoenig
1.Ka7-a8 Ka5-a4 2.b7-b5 + Ka4b5=B [+wBb7] # 1.Ka7-b8 Ka5-b5 2.c7-c6 + Kb5c6=B [+wBc7] # 1.b7-b6 + Ka5-a6=B 2.Ka7-b8 a6-a7 #
Original comment by: thomas-maeder