+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | | | | | | | | | | | | + + +-------+ + + + + + + + + + + + + + | | --- | | | | Y a | S | G b | | | | --- | | + + + + + + + + + + + + + +-------+ +-------+ | | | | | | + + + + + + + + + +-------+ + + + + + + | | | | | | B b | B d | | | | | + + + + + + +-------+ + + + + + + +-------+ + | | | | R a | | | | | +-------+ + + +-------+ + + + + + + + + + + + | --- | | | | B | R d | | | --- | | + + + + + + + + + + + + + + + + + | | | | | G c | | Y c | | | | | + +-------+ + + + + +-------+-------+ + + +-------+ + + + | | | | | | | | | | | | + + + + + + + + + + + + + + + + + | | | --- | | | | | Y | | | | | --- | + + + + + + + +-------+-------+ + + + + + + + | | | | | Y b | | | | + + + + +-------+ +-------+ + + + + + + + +-------+ | | | | | | B a Y d | | | | | | +-------+ + + + + + + +-------+ + + + +-------+ + + | --- | | | | G | | B c | | --- | | + + + + + + + +-------+ + + + + + + + + | --- | | | | R | Vtx | | | --- | | + +-------+ + + + + + + + + + + + + + + | | | | | R c | | G a | | | | | + + + + + + + + + +-------+ + + + +-------+ + | | | | | G d | R b | | | | | | + + + +-------+ + + + + + + + + + + + + | | | | | | | | | | | | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ | | | | + + +---+ + + + + + + + + + + + + + | | Ya S Gb | | + + + + + + + + + + + + + +---+ +---+ | | + + + + + + + + + +---+ + + + + + + | | Bb | Bd | + + + + + + +---+ + + + + + + +---+ + | Ra | | +---+ + + +---+ + + + + + + + + + + + | B Rd | | + + + + + + + + + + + + + + + + + | Gc | | Yc | + +---+ + + + + +---+---+ + + +---+ + + + | | | | + + + + + + + + + + + + + + + + + | | | Y | + + + + + + + +---+---+ + + + + + + + | | Yb | + + + + +---+ +---+ + + + + + + + +---+ | | Ba Yd | | +---+ + + + + + + +---+ + + + +---+ + + | G | Bc | + + + + + + + +---+ + + + + + + + + | R Vtx| | + +---+ + + + + + + + + + + + + + + | Rc | | Ga | + + + + + + + + + +---+ + + + +---+ + | Gd | Rb | | + + + +---+ + + + + + + + + + + + + | | | | +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ Playing Yd 26: R <^> S >^v> R ^<^>v> B v< Y v B >v Y >v^> solver finds minimum 11, 6 penultimate positions: Yv G> S^ Y^ S< Y< Sv Yv Y< Y^ Y> Yv G> Y^ Y< Yv Y< R> Rv Y> Y^ Y> Yv G> Y^ Y< R> Rv Yv R< Y< Y^ Y> Y> Yv B> Bv Y< Yv R> Rv Y> Y^ Y> Bv Gv Yv B> Y^ Y< G< Yv Y< Y^ Y> G> R^ Sv G^ R> Y> Rv Yv G< Y< Yv