MESON Chess Problem Database

Problem Display
PID: 224241 (4N3/p2p1K2/Pn3PN1/3k2r1/B1p5/7P/Q4B2/8 w - - 0 1)

Schiffer, Vincenz

Globe Problem And Solution Ty. , 1888

4N3/p2p1K2/Pn3PN1/3k2r1/B1p5/7P/Q4B2/8

#2

9 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qe2?
      • threat
        • 2.Sf4#
        • 2.Se7#
        • 2.Qf3#
      • 1...Sxa4
        • 2.Se7#
        • 2.Qf3#
      • 1...Rg3
        • 2.Sf4#
        • 2.Se7#
        • 2.Qe5#
      • 1...Rg4
        • 2.Se7#
        • 2.Qe5#
      • 1...Re5
        • 2.Sf4#
        • 2.Qxe5#
      • 1...Rf5
        • 2.Se7#
      • 1...Sc8
        • 2.Sf4#
        • 2.Qf3#
      • 1...c3
        • 2.Sf4#
        • 2.Se7#
        • 2.Qd3#
      • 1...Rxg6!
  • Keys
    • 1.Qb1!
      • 1...Rxg6
        • 2.Qf5#
      • 1...Sxa4
        • 2.Qb7#
      • 1...c3
        • 2.Qd3#
      • 1...Rg1
        • 2.Qf5#
      • 1...Rg2
        • 2.Qf5#
      • 1...Rg3
        • 2.Qf5#
      • 1...Rg4
        • 2.Qf5#
      • 1...Re5
        • 2.Sf4#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rh5
        • 2.Qh1#
      • 1...Sa8
        • 2.Qb7#
      • 1...Sc8
        • 2.Qb7#
      • 1...d6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • DUALS(3)
      • Vars
        • R(c);P_PINP(F)::S(G)
      • Refutation
        • R(c);XS(G)
  • Actual
    • Q(A);N_PINP(a)
    • Vars
      • R(c);N_GUARD,XS(G)::QAR2(A)
      • S(d);OGATE,XB(D)::QAB(A)
      • P(a);N_GUARD::QAR2(A)
      • R(c);N_GUARD::QAR2(A)
      • R(c);SBLOCK::S(G)
      • R(c);N_GUARD,P_PINP(F)::QAR2(A),XR(c)
      • R(c);N_GUARD::QAB(A)
      • S(d);OGATE::QAB(A)
      • P(f);SBLOCK::S(I)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).